HEAP LEACHING OF LOW GRADE URANIUM ORES AT SOMAIR
|
|
|
- Ilene Gabriella Flowers
- 6 years ago
- Views:
Transcription
1 HEAP LEACHING OF LOW GRADE URANIUM ORES AT SOMAIR Jacques THIRY Nicolas DURUPT AREVA NC Business Group Mines SEPA - Service d Etude de Procédés et Analyses
2 Heap Leaching Somaïr More than t of uranium produced from 1968 Production in 2006 : 1565 t of U Production in 2009 : 1808 t of U Estimation for 2010 : Up to 2500 t of U with heap leaching production
3 Heap Leaching History Heap Leaching Production by heap leaching from 1971 to 1988 Heap leaching of the marginal run of mine ores with strong acid irrigation 5900 t U produced by heap leaching during that period of time Until 500 to 600 t U /y Low recovery : around or less than 50% More than 10 millions tons of marginal ores stored on the site Average grade : 800 ppm (range 400 to 1000 ppm) Renewal of U market => Necessity to define new modern heap leach process according to other mineral industry (Cu, Au )
4 1. Ore Preparation Heap Leaching 2. Agglomeration Ore Rotating drum 3. Stacking Heaps 4. Leaching Ponds To solvent plant
5 1. Ore Preparation - Particle size? - Number of crushers? Heap Leaching 2. Agglomeration Rotating drum 3. Stacking Heaps 4. Leaching Ponds To solvent plant
6 1. Ore Preparation Heap Leaching 3. Stacking Heaps 2. Agglomeration - Particle size? - Number of crushers? - Water flowrate? - Flowrate and concentration of acid? - Use of a binder? - Size and rotating speed of the drum? - Final moisture? - Way of reagents addition? 4. Leaching Ponds To solvent plant
7 1. Ore Preparation Heap Leaching 3. Stacking 2. Agglomeration - Particle size? - Number of crushers? - Water flowrate? - Flowrate and concentration of acid? - Use of a binder? - Size and rotating speed of the drum? - Way of reagents addition? - Heap size? - Pad size? - Number of conveyors? - Permeability? - Dripper lines spacing? 4. Leaching Ponds To solvent plant
8 1. Ore Preparation - Sampling? - Composite? - Particule size? - Number of crushers? Heap Leaching 3. Stacking - Heap size? - Pad size? - Number of conveyors? - Permeability? - Dripper lines spacing? 2. Agglomeration - Water flowrate? - Flowrate and concentration of acid? - Use of a binder? - Size and rotating speed of the drum? - Way of reagents addition? - % recovery? - Specific flowrate? - Total irrigation flowrate? - Acid concentration? - Oxidizing agent? 4. Leaching - Acid consumption? - Impurities concentration? - Ponds capacities? - Leach time? - Irrigation cycles? - Evaporation datas? - Recycling considerations?
9 Ores characterization Heap Leaching Ores dedicated to heap leaching process come from marginal ores stored during the last twenty years : Eight different deposit studied + two other ores to study in the future More than 10Mt of heaps Multiple quantities and grades Two very clayey ores Similar impurities in the ores (Mo Zr V) Project for 500 to 750 t/y of uranium with 1.4 Mt/y of stacking
10 Heap Leaching Studies carried out in 4 steps : Lab tests : Identification of highest acid consuming ores Estimation of uranium recovery Constraint of acid availibility on site Optimisation required at first Column tests on an average sample of all deposits : Determination of mean uranium recovery and acid consumption for feasability study Identification of the most significant parameters Column tests on specific sample of each deposit : Optimisation of leaching conditions for each ore Determination of uranium recovery and acid consumption for each ore Pilot tests in boxes (6m high ; 9m 2 area) : Validation of process parameters Training for operators
11 Heap Leaching Preliminary lab tests in agitated tanks Leaching tests in agitated tanks for : Estimation of acid consumptions Comparison beetween each deposit Average recovery determination Main results showed Lowest U recoveries for lowest grade ores Highest acid consumptions for clayey ores Variation of recovery from 50 to 70 % according to the acid availability
12 Column tests - Agglomeration Heap Leaching Sampling Composites Preparation - Agglomeration
13 Heap Leaching Column tests - Leaching Height Diameter Filling Irrigation
14 Heap Leaching Column tests Follow up 80% 80% 70% 60% 70% 60% Colonne 1 : 20kg/t - 10g/l Colonne 2 : 20kg/t - 10g/l Colonne 4 : 20kg/t - 30g/l Colonne 8 : 0kg/t - 30g/l Rendement U (%) 50% 40% 30% Colonne 1 : 9,3 l/m2/h Colonne 2 : 8,7 l/m2/h Colonne 3 : 5,7 l/m2/h Rendement U (%) 50% 40% 30% 20% 20% 10% 10% 0% Temps(Jours) 3,5 0% Acide consommé (Kg/t) Precise sampling and follow up : ph 3 Colonne 1 : 10g/l Colonne 2 : 10 g/l 2,5 Colonne 4 : 30 g/l 2 1,5 10 g/l 1 30 g/l 0, Temps (Jours) Added volumes Collected volumes Ore compression - permeability ph, Redox, U and impurities analysis in collected volume U and impurities grades in residues Moisture of the residues Gradient determinations
15 Heap Leaching Column tests on an average sample of all ores 19 columns tests Study with a statistical analysis : Variance for uranium recovery : 0.9 % Variance for acid consumption : 0.5 kg/t Determination of significant and insignificant parameters according to the range of study Plugging risks if ore dries before stacking Average leaching recovery determined Average acid consumption determined
16 Heap Leaching Column tests on specific samples of each deposit and blending 57 columns tests 8 deposits tested Uranium recovery range Acid consumption range Oxidant may be required for some ores Plugging risks with clayey ore
17 Heap Leaching Column tests on specific samples of each deposit plugged columns Compaction (%) Clay grade (%)
18 Heap Leaching Pilot tests with 6m high boxes Irrigation Boxes Agglomerator feeding and tanks
19 Pilot tests with 6m high boxes Heap Leaching Sampling & Crushing 200 tons ore Continuous agglomeration Stacking at 7 t/h Height : 6 meters Drop irrigation Day per day follow up of parameters Decommissioning with rigorous sampling Analyses
20 Pilot tests Heap Leaching Sampling & Crushing Drain Agglomerator
21 Pilot tests Heap Leaching Stacking Irrigation Decommissionning
22 Heap Leaching Pilot tests with 6m high boxes 80,00% ,00% ,00% 6000 Uranium recovery 50,00% 40,00% 30,00% Columns : U recovery Boxes : U recovery Columns : U concentration Boxes : U concentration [U] (mg/l) 20,00% ,00% ,00% 0 0,0 10,0 20,0 30,0 40,0 50,0 60,0 70,0 80,0 90,0 time (jours)
23 2005 : Scoping study Ore sampling Lab tests Heap Leaching 2006 : First column tests Feasability study Solvent configuration piloting 2007 : Complementary column tests Engineering Supplying equipment Planning 2008 : Complementary column tests Pilot tests in boxes Heap pad building 2009 : Refurbishing of the back end of the plant Complementary pilot tests in boxes Production start up (July)
24 Heap Leaching Operations Ore crushing 1 st Pad construction ( m 2 )
25 Heap Leaching Pad drain Pad preparation
26 Heap Leaching Ore stacking
27 Heap Leaching Main results of tests Uranium recovery : > 65 % Weak acid consumption : 20 to 35 kg/t Oxidant possible Plugging risks with clayey ore to manage Good confidence and reproductibility from columns to boxes but longer time leaching
28 Main conclusions Heap Leaching Need time and tests to define process data Process very sensitive to the ore characteristics Result checking by pilot test with boxes Feed back required (on going) Follow up of more tests for more optimisation and better recovery ( 80 % expected) As Areva will produce a significant part of its productions by heap leaching (acid and alkaline), extensive R & D studies are in progress for : Modelling Define faster and reliable testing strategies
29 Thank you for your attention Questions?
HEAP LEACHING TECHNOLOGY Moving the frontier for treatment
HEAP LEACHING TECHNOLOGY Moving the frontier for treatment Applications in Niger and Namibia Jacques THIRY Sergio BUSTOS Technical Direction AREVA MINES FRANCE IAEA, Vienna, June 2014 Titre présentation
Building a Uranium Heap Leach Project
Building a Uranium Heap Leach Project Henry SCHNELL URAM 2014 Conference - Vienna, June 2014 HA SCHNELL Consulting Inc. hatschnell@xplornet.com The Plan 1. The Project 2. The Geologist 3. Heap Leach Overview
White Dam Gold Project Dump Leach
ALTA 2015 White Dam Gold Project Dump Leach A division of Midas Engineering Group Mineral Engineering Technical Services PO Box 5778 St Georges Tce WA 6831 P: (+61 8) 9421 9000 F: (+61 8) 9325 8311 ABN
Locked Cycle Leaching Test and Yellowcake Precipitation
Locked Cycle Leaching Test and Yellowcake Precipitation In 2013, the Saskatchewan Research Council ( SRC ) in Saskatoon, SK, Canada commenced locked cycle alkaline leach testing on drill core samples from
Positive Lerokis Copper Recovery Testwork
For ASX Market Release: 20 November 2017 Positive Lerokis Copper Recovery Testwork HIGHLIGHTS Positive copper recovery results have been received from diamond drill core samples from Lerokis, the next
Optimisation Success Leads to Further Significant Reductions in Leach Time and Acid Consumption
ASX: GSC Suite 203, 161 Walker Street North Sydney NSW 2060 Optimisation Success Leads to Further Significant Reductions in Leach Time and Acid Consumption Highlights Latest results from optimisation testwork
For personal use only
STOCK EXCHANGE ANNOUNCEMENT 15 July 2015 HEAP LEACH DEMONSTRATION PLANT STRONGLY SUPPORTS ETANGO DEFINITIVE FEASIBILITY STUDY Bannerman Resources Limited (ASX:BMN; TSX:BAN; NSX:BMN) is pleased to report
EXCELLENT NICKEL LEACHING TESTWORK RESULTS
ASX AND MEDIA RELEASE - 22 FEBRUARY 2007 EXCELLENT NICKEL LEACHING TESTWORK RESULTS Metallica is pleased to report that excellent results have been received from ongoing nickel leaching testwork on NORNICO
XXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXX
Indústrias Nucleares do Brasil - INB XXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXX IMPLEMENTATION OF A NEW MILLING PROCESS xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx AT CAETITÉ-BRAZIL xxxxxxxxxxx URANIUM SITE L.A.
LOOK BEFORE YOU LEACH: DYNAMIC SIMULATION OF HEAP LEACH FLOWSHEETS
LOOK BEFORE YOU LEACH: DYNAMIC SIMULATION OF HEAP LEACH FLOWSHEETS Brett Muller and Tim Newton Simulus Presented by Brett Muller brett.muller@simulus.com.au www.andritz.com 1 of 10 ABSTRACT A projectlevel
LixTRA. Novel Copper Leach Technolgy
LixTRA Novel Copper Leach Technolgy BASF s Mining Solutions at a glance BASF s Mining Solutions business offers a diverse range of mineral processing chemicals and technologies to improve process efficiencies
Geotechnical behaviour of spent ore impacts of metallurgical factors
Geotechnical behaviour of spent ore impacts of metallurgical factors R. Rimmelin 1, C. Vergara 2 1. Global Practice Lead Geotechnical (MAusIMM), BHP, Brisbane QLD 4000. Email: Rigoberto.RP.Rimmelin@bhpbilliton.com
For personal use only
25 January 2013 EXCELLENT RECOVERIES IN HEAP LEACH TESTS AT MELROSE PROJECT HIGHLIGHTS Excellent gold recoveries in column leach tests with 94%+ Au extracted after 32 days of leaching from Bungarra deposit
Fortuna provides update on the Lindero gold Project in Argentina
Fortuna provides update on the Lindero gold Project in Argentina Vancouver, March 22, 2017-- Fortuna Silver Mines Inc. (NYSE: FSM) (TSX: FVI) is pleased to present an update of preliminary results of the
Evaluation of Grade Engineering using Enterprise Optimization. Michael Scott, Nick Redwood
Evaluation of Grade Engineering using Enterprise Optimization Michael Scott, Nick Redwood Who we are Not for Profit Research Organization Site implementation of stepchange innovation Grade Engineering
Practise of large scale hematite ore beneficiation
Practise of large scale hematite ore beneficiation Shandong Province Metallurgical Engineering Co., Ltd. E-mail: realzhf@163.com Abstract Shandong Province Metallurgical Engineering Co., Ltd. (hereinafter
PRELIMINARY OXIDE HEAP LEACH TESTWORK DELIVERS EXCELLENT RESULTS AT THE SOUTH HOUNDÉ PROJECT
NEWS RELEASE APRIL 7, 2014 PRELIMINARY OXIDE HEAP LEACH TESTWORK DELIVERS EXCELLENT RESULTS AT THE SOUTH HOUNDÉ PROJECT VANCOUVER, CANADA. Sarama Resources Ltd. ( Sarama or the Company ) is pleased to
APPENDIX 22C: CYANIDE MANAGEMENT PLAN
IV: onomic ents ment ome ability mic pment iness APPENDIX 22C: CYANIDE MANAGEMENT PLAN Volume V: additional yesa requirements 20 Effects of the Environment on the Project 20a Climate Change Report 21 Accidents
Hydraulic performance of permanent heap leach with intermediate drainage system
Proceedings of Heap Leach Solutions, 2015 September 14-16, 2015, Reno, USA Published by InfoMine, 2015 InfoMine, ISBN: 978-0-9917905-8-6 Hydraulic performance of permanent heap leach with intermediate
ISL Mining in Kazakhstan and Technology Development Vienna, IAEA, April 2013
ISL Mining in Kazakhstan and Technology Development Vienna, IAEA, 15-18 April 2013 O. Gorbatenko Uranium resources in Kazakhstan Kazakhstan Identified Resources of uranium amount to 900 thousand tons,
Flotation and Leaching at Anglo Asian Mining s Gedabek Gold and Copper Mine in Azerbaijan. A.J. Monhemius, F. Hedjazi & H.
Flotation and Leaching at Anglo Asian Mining s Gedabek Gold and Copper Mine in Azerbaijan A.J. Monhemius, F. Hedjazi & H. Saeedi Ali Presentation at World Gold, COM 2017, Vancouver, August 2017 Disclaimer
ore in Hungary ( )
Technical Meeting on Low-grade ore processing Alkaline heap leaching of lowgrade ore in Hungary (1966-1990) M. Csővári MECSEK-ÖKO Zrt., Pécs, Hungary The process was elaborated by: Dr. B. Czegledi, L.
Nickel Laterite. AMEC NATIONAL MINING CONGRESS 22 May 2008 Mathew Longworth Heron Resources Limited ASX: HRR
Nickel Laterite Moving Forward AMEC NATIONAL MINING CONGRESS 22 May 2008 Mathew Longworth Heron Resources Limited ASX: HRR Disclaimer Forward Looking Statement The material used in this presentation is
#Disrupt Mining: Integrated Extraction and Recovery System for Complex. Ores and Wastes"
#Disrupt Mining: Integrated Extraction and Recovery System for Complex Ores and Wastes" The Process. Supplemental Information The proposed integrated process covers both extraction and recovery of many
Calibration and Predictive Performance of a Two Domain Empirical Metal Recovery Model
Calibration and Predictive Performance of a Two Domain Empirical Metal Recovery Model Jason Keller, GeoSystems Analysis, Inc., USA Michael Milczarek, GeoSystems Analysis, Inc., USA Jim Bilskie, PhD, Bilskie
TECHNICAL MEMORANDUM
FOR INTERNAL DISCUSSION PURPOSES ONLY TECHNICAL MEMORANDUM TO: Augusta Resource Corp. ATTENTION: Jamie Sturgess FROM: Troy Meyer Project Manager, Vector Colorado LLC (Vector) DATE: June 5, 2006 SUBJECT:
COPPER PRECIPITATION AND CYANIDE RECOVERY PILOT TESTING FOR THE NEWMONT YANACOCHA PROJECT
COPPER PRECIPITATION AND CYANIDE RECOVERY PILOT TESTING FOR THE NEWMONT YANACOCHA PROJECT Michael Botz, Elbow Creek Engineering, Billings, MT Sevket Acar, Newmont Mining Corporation, Englewood, CO Introduction
Lowering the Threshold for Refractory Gold Deposits with New Biooxidation Technologies
Presented at MINExpo International '96, Las Vegas, NV, September 11, 1996 Lowering the Threshold for Refractory Gold Deposits with New Biooxidation Technologies Desmond P. Kearns, President & CEO John
Metallurgical Testwork Capability Statement
Metallurgical Testwork Capability Statement CPC Engineering provides a full range of testwork related services from sample selection through to testwork management and evaluation. CPC ensures that testwork
ISL mine Project and Planning - Feasibility Study -
ISL mine Project and Planning - Feasibility Study - IAEA /INB Regional Meeting Salvador, Brazilia 24. 28. 11. 2008 Vladimir Benes, DIAMO, s.e., Czech Republic Introduction (1) Bringing a uranium operation
Alkaline Glycine Systems as Alternatives Reagents for Copper Deposits of Complex Mineralogy
Alkaline Glycine Systems as Alternatives Reagents for Copper Deposits of Complex Mineralogy Jacques Eksteen, Elsayed Oraby, Bennson Tanda Western Australian School of Mines Curtin University Introduction
HONEYMOON FIELD LEACH TRIAL
ASX Announcement 19 June 2017 ASX: BOE HONEYMOON FIELD LEACH TRIAL HIGHLIGHTS Positioning Honeymoon to be Australia s next uranium producer as underlying prices rise Technical validation step for the Honeymoon
Bioreactor Landfill Design
Bioreactor Landfill Design Timothy Townsend, PhD, PE Department of Environmental Engineering Sciences University of Florida ttown@ufl.edu Bioreactor Landfill Design Modern landfill design entails many
Kanowna Belle Pre-Oxidation Project
Kanowna Belle Pre-Oxidation Project Kanowna Belle Processing Kanowna Belle treats both free milling and refractory ores with the free milling material being sourced predominantly from the East Kundana
Indonesia s Next World Class Mining Company
Indonesia s Next World Class Mining Company Tujuh Bukit Oxide Heap Leach Project Update March 2016 1 Disclaimer PT Merdeka Copper Gold Tbk ( PT MCG ) make no representation or warranty (express or implied)
HAVER Mining HAVER & BOECKER HAVER & BOECKER
HAVER Mining HAVER GROUP 2 HAVER GROUP Our Success Headquarters Subsidiaries Employees Sales HAVER & BOECKER, Germany 50 Locations 2.900 470 Mio 3 HAVER GROUP Our Passion 4 HAVER GROUP We focus on Premium
Where Exploration Intersects Discovery
Newrange Gold Provides Exploration Update for Ongoing Work at its Pamlico Gold Project, Nevada VANCOUVER, BRITISH COLUMBIA, December 11, 2018 (, US: NRGOF, Frankfurt: X6C) Newrange Gold Corp. ("Newrange"
Feasibility study for ISL mine
Feasibility study for ISL mine IAEA Technical Meeting Swakopmund, Namibia 1. 5. 10. 2007 Vladimir Benes, DIAMO, s.e., Czech Republic Introduction (1) It is the first step of designing ISL facilities. The
Column Testwork Demonstrates Heap Leach Potential at the Omahola Project
ASX Announcement ASX: DYL 4 April 2013 Column Testwork Demonstrates Heap Leach Potential at the Omahola Project KEY POINTS Metallurgical testwork has demonstrated the potential for a heap leach operation
Bioleaching Of Zinc Sulfide Ores And Concentrates
Lecture 15 Bioleaching Of Zinc Sulfide Ores And Concentrates Keywords: Zinc Bioleaching, Sphalerite, Zinc Concentrates The leaching rate of zinc with mixed cultures of Acidithiobacillus ferrooxidans and
THE FERRIC ION - GOD S GIFT TO HYDROMETALLURGISTS TO KEEP EM HUMBLE. By Chris Fleming SGS Lakefield Research Ltd.
THE FERRIC ION - GOD S GIFT TO HYDROMETALLURGISTS TO KEEP EM HUMBLE By Chris Fleming SGS Lakefield Research Ltd. TOPICS The first SEx war There s nothing basic about basic iron sulphate 2 THE FIRST SEx
Study of the behavior of materials with fines content in heap leaching processes
Proceedings of Heap Leach Mining Solutions, 2016 October 18-20, 2016, Lima, Peru Published by InfoMine, 2016 InfoMine, ISBN: 978-1-988185-03-3 Study of the behavior of materials with fines content in heap
Biohydrometallurgy Of Uranium Dump, Heap and Insitu
Lecture 17 Biohydrometallurgy Of Uranium Dump, Heap and Insitu Leaching Keywords: Dump, Heaps, In-situ Leaching Dump, Heap, in situ leaching Dump millions of tons of over burden / waste rock Dumps often
Wetar Copper Project Development and Production Update
For ASX Market Release: 5 June 2015 Wetar Copper Project Development and Production Update Finders Resources Limited ("Finders" the Company ; ASX code: FND) is pleased to provide an update on activities
Brendan Moseley, General Manager, Société d Exploitation de Kipoi, Haut Katanga. Heap Leach A viable/successful investment in the Province
Brendan Moseley, General Manager, Société d Exploitation de Kipoi, Haut Katanga Heap Leach A viable/successful investment in the Province Disclaimer Caution Regarding Forward Looking Statements and Forward
For personal use only
ASX Announcement 5 May 2014 COARSER GRIND SIZE TESTING DELIVERS VERY HIGH GOLD RECOVERIES FOR GRUYERE PROJECT Highlights Coarser grind size testing delivers very high gold recoveries Oxygen Sparging increases
Acid leaching technology for obtaining a high-purity of silica for Photovoltaic area
Acid leaching technology for obtaining a high-purity of silica for Photovoltaic area Kheloufi Abdelkrim 1 1 Silicon Technology Development Unit, Algeria 02 Bd Frantz Fanon BP. 140 Alger 7 merveilles Algérie
Managing Iron Ore Fines of Dalli Rajhara For Improvement In Yield
Managing Iron Ore Fines of Dalli Rajhara For Improvement In Yield S K Raja, AGM, CET, Bhilai, S. Manoj Kumar, Sr. Mgr. (Mines-Project), BSP SAIL CET. Bhilai Email : saurabhkumar.raja@sailcet.co.in smanojkumar@sail-bhilaisteel.com
Resource Efficient Mining Processes of Tomorrow
Metso Process Technology & Innovation (PTI) Resource Efficient Mining Processes of Tomorrow R&D Project Authors: K Duffy W Valery A Jankovic P Holtham www.metso.com General PTI presentation 2014 2015 A
Processing Of Gold-Bearing Sand,Dumps: A Case Study In Zimbabwe
National University of Science and Technolgy NuSpace Institutional Repository Chemical Engineering http://ir.nust.ac.zw Chemical Engineering Publications 2017-10 Processing Of Gold-Bearing Sand,Dumps:
History And Methods In Biohydrometallurgy
Lecture 3 History And Methods In Biohydrometallurgy Keywords: Historical Perspectives, Methods, Biohydrometallurgy In lectures 3-5, historical perspectives in bioleaching, methods in biohydrometallurgy,
From copper ore to pure copper with the power of TAKRAF and ABB equipment
From copper ore to pure copper with the power of TAKRAF and ABB equipment Dr. Mario Dilefeld Head of Belt Conveyor Systems Stockholm, 2017-05-03 Copper 2 3 Agenda 1. Introduction Copper used in construction
Metallurgium TM. Lessons Learned from the Copper Industry Applied to Gold Extraction. John O. Marsden
Metallurgium TM Lessons Learned from the Copper Industry Applied to Gold Extraction John O. Marsden Keynote Presentation at World Gold 2009 Conference, Johannesburg, South Africa, October 30 th, 2009 Overview
Hycroft Oxidation Pilot Plant Overview
Hycroft Oxidation Pilot Plant Overview Hazen Research: AAO Pilot Plant Tour Friday, February 21, 2014 Bill Pennstrom Pennstrom Consulting Art Ibrado M3 Engineering Dennis Gertenbach Hazen Research INVESTIGATIVE
The i-botmprocess and related treatments mine waste remediation
The i-botmprocess and related treatments mine waste remediation for K. McEwanl & D. Ralph2 Micron Research Pty. Ltd, Australia 2Division of Science, Murdoch University Australia Abstract Acid mine drainage
PILOT TEST WORK TRIGGERS FINAL TRANCHE OF TREMONT FINANCING
8 October 2015 ASX Release ASX Code: CXX Highlights PILOT TEST WORK TRIGGERS FINAL TRANCHE OF TREMONT FINANCING Tremont has paid the final tranche of US$5 million Integrated pilot plant testing confirms
BLAKE JAW CRUSHER TECHNICAL SPECIFICATIONS
BLAKE JAW CRUSHER It is used for reducing run-of-mine ore or coal to a size small enough to be taken by the next crusher in the series during the first stage of crushing. 1. Toggle Type: Single or double
Dry Stacking Filtration of Bauxite Residue with Filter Presses
Dry Stacking Filtration of Bauxite Residue with Filter Presses Andrew Hawkey 1, Davide Cavalli 2 and Idemilson Fritzke 3 1. Sales Representative Aqseptence Group, Brisbane, Australia 2. Director of Business
Treatability Study and Reverse Osmosis Pilot Study of Industrial Wastewater at a Wood Products Mill
Treatability Study and Reverse Osmosis Pilot Study of Industrial Wastewater at a Wood Products Mill NC AWWA-WEA 2017 Annual Conference Randall Foulke, PE, BCEE, LEED AP Tracey Daniels, EI November 14,
MINERAL PROCESSING. Inno Technologies Oy. Extraction of rare-earth metals from technogenic dumps of mining-and-processing plants.
MINERAL PROCESSING Extraction of rare-earth metals from technogenic dumps of mining-and-processing plants. Finnish ECO-technologies 206 ECOLOGIAN PROBLEM Large processing plants operate with a capacity
INTEGRA RESOURCES COMMENCES METALLURGICAL TESTWORK PROGRAM AT THE DELAMAR GOLD-SILVER PROJECT
1050 400 Burrard Street Vancouver, British Columbia, Canada V6C 3A6 Email: chris@integraresources.com FOR IMMEDIATE RELEASE September 6, 2018 TSXV:ITR ; OTCQX: IRRZF www.integraresources.com INTEGRA RESOURCES
Front-End Solutions to Your Business Needs. Uranium Mining, Chemistry, Enrichment
Front-End Solutions to Your Business Needs Uranium Mining, Chemistry, Enrichment 22 Securing your fuel cycle supplies for the long term Our Mission Orano is committed to being a long-term reliable partner
For personal use only
ASX RELEASE 5 December 2016 Successful beneficiation studies highlight potential for substantial cost reduction for Wiluna Uranium Project Toro Energy Limited (ASX:TOE) announces Beneficiation and Process
DALGARANGA GOLD PROJECT - CONSTRUCTION UPDATE 8 MONTHS TO FIRST GOLD
November 3 rd 2017 Australian Securities Exchange Limited Via Electronic Lodgement 57 139 522 900 DALGARANGA GOLD PROJECT - CONSTRUCTION UPDATE 8 MONTHS TO FIRST GOLD Construction work at Gascoyne s 100%
Two-stage precipitation process of iron and arsenic from acid leaching solutions
Two-stage precipitation process of iron and arsenic from acid leaching solutions N. J. BOLIN, J. E. SUNDKVIST Boliden Mineral AB, SE-936 81 Boliden, SWEDEN Received 20 September 2008; accepted 5 November
Investigation of secondary zinc oxides as an alternative feed to the Skorpion Zinc process: Part 2 Process considerations and economic analysis
http://dx.doi.org/10.17159/2411-9717/2018/v118n7a5 Investigation of secondary zinc oxides as an alternative feed to the Skorpion Zinc process: Part 2 Process considerations and economic analysis by C.
Figure 1: Schematic block-diagram of the project test work
METHODOLOGY A brief schematic diagram for the project test work is presented in Figure 1 and comprises the following main steps: sample collection, sample preparation, chemical characterization, grinding
Mix Blending Enhancement System ASTEC INTELLI-PAC. Mix Blending Enhancement System 1
Mix Blending Enhancement System ASTEC INTELLI-PAC Mix Blending Enhancement System 1 ASTEC INTELLI-PAC Mix Blending Enhancement System The ASTEC Intelli-Pac mix blending enhancement system gathers real-time
IMPROVING EFFICIENCIES: THE ROLE OF PROCESS AUDITS
IMPROVING EFFICIENCIES: THE ROLE OF PROCESS AUDITS MINE AFRICA BREAKFAST, PDAC 2015 Mike Hallewell B.Sc., C.Eng. Business Development Manager COMMITMENT TO SERVICING AFRICA s NEEDS Mines in Africa SGS
INTRODUCTION INTRODUCTION
INTRODUCTION 1-1 1. INTRODUCTION 1.1. Background The exploitation of mining deposits in Namibia has been going on for more several thousand years. At first this productive activity was undertaken by Late
Ceramic and glass technology
1 Row materials preperation Plastic Raw materials preperation Solid raw materials preperation Aging wet milling mastication Mixing seving Grain size reduction Milling Crushing Very fine milling Fine milling
PROJECT FINANCIAL ROBUSTNESS CONFIRMED SMALLER SCALE PROJECTS REMAIN IN THE LOWER HALF OF THE SECTOR COST CURVE
4 December 2013 HÄGGÅN URANIUM PROJECT SCOPING STUDY REMODELLED AT LOWER THROUGHPUT RATES PROJECT FINANCIAL ROBUSTNESS CONFIRMED SMALLER SCALE PROJECTS REMAIN IN THE LOWER HALF OF THE SECTOR COST CURVE
DALGARANGA GOLD PROJECT CONSTRUCTION UPDATE LESS THAN 5 MONTHS TO FIRST GOLD
December 8 th 2017 Australian Securities Exchange Limited Via Electronic Lodgement 57 139 522 900 DALGARANGA GOLD PROJECT CONSTRUCTION UPDATE LESS THAN 5 MONTHS TO FIRST GOLD Construction at Gascoyne s
Report No. A13575 Part 5
CIL Extractive Testwork conducted upon Heap Leach (x2) and Drillhole (x2) Composites from the Mt Todd Gold Project for Vista Gold Australia Pty Ltd Report No. A13575 Part 5 April 2013 The results contained
Feasibility studies Ulaanbaatar August 2016
Feasibility studies Uranium exploration, development and eventual production, form a series of progressive and logical steps. Each step is part of a progression of activities with the objective of obtaining
THE NEW METHOD FOR ISL WELLS PERFORMANCE IMPROVEMENT AT ZARECHNOYE DEPOSIT (KAZAKHSTAN)
THE NEW METHOD FOR ISL WELLS PERFORMANCE IMPROVEMENT AT ZARECHNOYE DEPOSIT (KAZAKHSTAN) A.Boytsov, M.Niyetbayev, M.Pershin, I. Avdassyov, A. Yermilov URAM-2014 Vienna, June, 2014 Uranium deposits and mines
FLOWSHEET CONSIDERATIONS FOR COPPER-COBALT PROJECTS
FLOWSHEET CONSIDERATIONS FOR COPPER-COBALT PROJECTS A.Nisbett 1, K Baxter 2, K Marte 3, M Urbani 4 1 Cognis Corporation, USA 2 Bateman Engineering Pty Ltd, Australia 3 Bateman Engineering Canada Corporation,
The Performance Of The AAC Pumpcell Circuits At The Gold Fields Limited Driefontein And Kloof Operations
The Performance Of The Circuits At The Gold Fields Limited And Operations A. Dippenaar, Plant Manager Gold Fields Limited Arno.Dippenaar@goldfields.com.au M.R. Proudfoot, Metallurgist Kemix (Pty) Ltd mproudfoot@kemix.com
Abstract. 1 Introduction. Golder Associates Ltd, Canada
https://papers.acg.uwa.edu.au/p/1752_05_gu/ Challenges associated with the design of a dewatering plant that will undergo a large increase in tailings throughput during the initial years of the project
Uranium and Thorium Production in Brazil - Present and Near Future Status - LUIZ ALBERTO GOMIERO UOC PRODUCTION MANAGER
Uranium and Thorium Production in Brazil - Present and Near Future Status - LUIZ ALBERTO GOMIERO UOC PRODUCTION MANAGER THORIUM RESERVES IN BRAZIL This theme will be the subject of the next presentation
McClean Lake Site Guide. AREVA Resources Canada Inc.
McClean Lake Site Guide AREVA Resources Canada Inc. McClean Lake Located over 700 kilometres northeast of Saskatoon, AREVA s McClean Lake site is comprised of several uranium mines and the newest, most
Lime Sludge Management An Update on Technologies
BC Metal Leaching/ARD Workshop Vancouver, British Columbia Lime Sludge Management An Update on Technologies Janice Zinck December 2, 2003 Overview Introduction Sludge characteristics Issues Sludge Disposal
Metso SmartTag The Next Generation and Beyond
Metso SmartTag The Next Generation and Beyond M Wortley 1, E Nozawa 2 and K J Riihioja 3 ABSTRACT SmartTag is a radio frequency identification (RFID) based technology designed to allow tracking of ore
Mineral Processing by Bioheapleaching at The Talvivaara Nickel Mine in Sotkamo, Finland. Jukka Pitkäjärvi General Manager Talvivaara Exploration Ltd
Mineral Processing by Bioheapleaching at The Talvivaara Nickel Mine in Sotkamo, Finland Jukka Pitkäjärvi General Manager Talvivaara Exploration Ltd DISCLAIMER The following information contains, or may
Owendale pilot plant program completed successfully
12 June 2018 Owendale pilot plant program completed successfully Key Highlights Achieved goals set for program: o Metallurgical performance of flowsheet to produce refined Sc2O3 and a Ni/Co preconcentrate
TALVIVAARA SOTKAMO MINE BIOLEACHING OF A POLYMETALLIC NICKEL ORE IN SUBARCTIC CLIMATE
Nova Biotechnologica 10-1 (2010) 7 TALVIVAARA SOTKAMO MINE BIOLEACHING OF A POLYMETALLIC NICKEL ORE IN SUBARCTIC CLIMATE MARJA RIEKKOLA-VANHANEN Talvivaara Mining Company Plc.,Talvivaarantie 66, 88120
PRETREATMENT OF COPPER ORE PRIOR TO HEAP LEACHING
PRETREATMENT OF COPPER ORE PRIOR TO HEAP LEACHING by Phanindra Kodali A thesis submitted to the faculty of The University of Utah in partial fulfillment of the requirements for the degree of Master of
Study on Capping Options For Overburden Encapsulation to Prevent Acid Mine Drainage in Lati Coal Mine, Kalimantan, Indonesia
Golden CO; USA Reliable Mine Water Technology IMWA 13 Study on Capping Options For Overburden Encapsulation to Prevent Acid Mine Drainage in Lati Coal Mine, Kalimantan, Indonesia Rudy Sayoga Gautama¹,
FLASH ROASTING OF SULPHIDE CONCENTRATES AND LEACH RESIDUES USING A TORBED* REACTOR
FLASH ROASTING OF SULPHIDE CONCENTRATES AND LEACH RESIDUES USING A TORBED* REACTOR C. E. Dodson, Torftech (Canada) Inc., 2395 Speakman Drive, Mississauga, Ontario L5K 1B3, Canada V. I. Lakshmanan, R. G.
Gold Cyanidation Report
Gold Cyanidation Report GTA Resources and Mining Inc (A16-08000) Prepared for: Robert Duess, GTA Resources and Mining Inc Prepared by: Metallurgy Manager, Actlabs Aug 23, 2016 1 1. Objective Cyanide bottle
FIGURE 1 Typical industrial column flotation cell FIGURE 2. More information is available at
The USE of Column Flotation for the Recovery of Ultra-Fine Phosphates Harold E. Wyslouzil Executive Managing Director Eriez Flotation Division Delta, B.C. - Canada ABSTRACT Brazil currently produces around
Section 2: Mineral Exploration and Mining
Section 2: Mineral Exploration and Mining Preview Classroom Catalyst Objectives Mineral Exploration Subsurface mining Longwall Mining Solution Mining Surface Mining Surface Coal Mining Section 2: Mineral
GALVANOX TM A Novel Process for the Treatment of Copper Concentrates
GALVANOX TM A Novel Process for the Treatment of Copper Concentrates David G. Dixon UBC Hydrometallurgy PRESENTATION OUTLINE GALVANOX HISTORY GALVANOX FEATURES GALVANOX CHEMISTRY BATCH LEACHING RESULTS
TERRA-3000 PRODUCT GUIDE
TERRA-3000 PRODUCT GUIDE ROAD CONSTRUCTION The scarcity and occasional exhaustion of conventional construction materials make it necessary to use in increasing quantities in-situ soil in road construction
OPERATION OF A FLOTTWEG TRICANTER CENTRIFUGE FOR CRUD TREATMENT AT BWANA MKUBWA SOLVENT-EXTRACTION PLANT
OPERATION OF A FLOTTWEG TRICANTER CENTRIFUGE FOR CRUD TREATMENT AT BWANA MKUBWA SOLVENT-EXTRACTION PLANT Anthony Mukutuma, 1 Nils Schwarz, 2 and Angus Feather 3 1 Bwana Mkubwa Mining Ltd., Ndola, Zambia.
Characterization of gold inventory and impediments to recovery at an active heap leach facility
Proceedings of Heap Leach Solutions, 2014 November 10 13, 2014, Lima, Peru Published by InfoMine, 2014 InfoMine, ISBN: 978-0-9917905-6-2 Characterization of gold inventory and impediments to recovery at
THE USE OF COLUMN FLOTATION FOR THE RECOVERY OF ULTRA-FINE PHOSPHATES
THE USE OF COLUMN FLOTATION FOR THE RECOVERY OF ULTRA-FINE PHOSPHATES Abstract Harold E. Wyslouzil President - Canadian Process Technologies Inc. Vancouver BC, Canada Brazil currently produces around 4.0
Pipe Flow Technology Centre TM. Serving the Global Mining Industry
Pipe Flow Technology Centre TM Serving the Global Mining Industry About SRC The Saskatchewan Research Council (SRC) is one of Canada s leading providers of applied research, development and demonstration
Environmental Impacts of Gold Recovery at a leading gold mining enterprise in Bolivia, South America
Environmental Impacts of Gold Recovery at a leading gold mining enterprise in Bolivia, South America Thomas Reichard Jaime A. Rocha Karl E. Lorber Arequipa, 24.9.07 Contents 1. Introducing myself: From
Alternative Models for the Calculation of CAPEX and OPEX for a Hydrometallurgical Plant
Alternative Models for the Calculation of CAPEX and OPEX for a Hydrometallurgical Plant Harald Osthof, 1 Jürgen Antrekowitsch 2 and Stefan Steinlechner 2 1 Railly&Hill Metal Recovery Inc., Dubai 2 Department