TiO 2 Chloride Process. Ti-Cons. Dr. Jendro and Partner - Jendro, Weiland and Partner Management Consultants

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1 Ti-Cons Dr. Jendro and Partner - Jendro, Weiland and Partner Management Consultants

2 General Process Chloride Process (Base Material) Post-Treatment (TiO 2 Pigment) Page 2

3 Recycled Chlorine Ore, Coke Oxygen, Chlorine Chlorination Condensation TiCl 4 Purification TiCl 4 Oxidation Metal Chlorides, Inert Dust Oxygen, Toluene Metal Chloride Dust Treatment Offgas Treatment HCl TiOCl 2 Inert Solids Offgas Base Material to Post Treatment Symbols: Educts Intermediates By-Product Waste Page 3

4 Chlorination to Condensation Cyclone (Dust Separation) Coke Ore Oxygen Chlorine Chlorinator Metal Chlorides, Inert Dust from TiCl 4 Oxidation Recycled Chlorine to Dust Treatment Page 4

5 Condensation Direct Condensation Offgas (CO, CO 2, HCl, TiCl 4 ) Indirect Condensation to Offgas Treatment from Chlorination Low Temperature Cooling System Crude TiCl 4 Crude TiCl 4 Tank to TiCl 4 Purification Page 5

6 TiCl 4 Purification Rectification Column TiCl 4 Condensation Cooling Water Pure TiCl 4 from Condensation Pure TiCl 4 Tank Crude TiCl 4 Evaporator to TiCl 4 Oxidation Page 6

7 TiCl 4 Oxidation Aluminum from TiCl 4 Purification Chlorine AlCl 3 Generator to Chlorination Recycled Chlorine Fuel TiCl 4 Super Heater Cooling Water Bag Filter Toluene Oxygen Fuel Oxygen Super Heater Pre- Main- Combustion Chambers Cooling Duct Base Material (TiO 2 ) to Post Treatment Page 7

8 1 st Dust Treatment from Chlorination Water, Lime Metal Chlorides, Inert Dust Dust Repulp Neutralized Waste Water to Sewer Insoluble Solids to Land Fill Option 1 Option 2 Water Filtration and Washing to 2 nd Dust Treatment Dust Repulp Metal Chloride Solution Coke Rich Solids e.g. for Iron Industry Page 8

9 2 nd Dust Treatment from 1 st Dust Treatment Metal Chloride Solution Lime Neutralization Filtration and Washing Neutralized Waste Water to Sewer Insoluble Solids to Land Fill Page 9

10 Offgas Treatment Offgas (CO, CO 2, HCl, TiCl 4 ) from Condensation Air Incinerator TiCl 4 Scrubber HCl Scrubber Chlorine Scrubber Stack TiOCl 2 Solution HCl (28 %) Page 10

11 Advantages and Disadvantages of Chloride Process compared to Sulfate Process Advantages Pros Disadvantages Cons Continuous Process: Good prerequisites for optimization of quality and utilization Direct and stable process control Better product quality regarding the optical and chemical properties In general, the production costs are lower, but in depends on the special circumstances Less environmental impact due to less waste Less man power necessary Higher safety requirements due to the use of Cl2, CO and TiCl4 Higher degree of automation necessary Higher requirements to the qualification of the staff Requires stable production environment and infrastructure Because of the closed loop the process is more sensitive to production short-fall Page 11

12 Raw Materials Ore: The higher the TiO2 content, the lower is the loss of chlorine and the amount of by-products The content of Ca and Mg has to be low The mechanical stability of the particles should be high The content of radioactive impurities should be low Coke: Content of sulphur, hydrogen and water should be low The mechanical stability of the particles should be high Page 12

13 Typical Consumptions - 1 Number Name Unit Quantity [Unit/tTiO 2 ] 1 Electricity kwh Steam t Oxygen Nm Nitrogen Nm Compressed Air Nm Clean Compressed Air Nm Chlorine kg Fuel Gas GJ Refrigerant t Coke kg Slag t Toluene kg 13 Page 13

14 Typical Consumptions - 2 Number Name Unit Quantity [Unit/tTiO 2 ] 13 NaCl kg 8 14 NaOH 50 % kg Aluminum kg KCl kg Mineral Oil kg H 2 O 2 30 % kg Scrubbing Agent kg 2 20 Ca(OH) 2 kg Water m D-I Water m Makeup Cooling Water m Page 14

15 Typical Plant Project data tpa TiO 2 -Pigment 4 buildings: Main Building Bag Filter Building Waste Treatment Tank farm 196 static equipments 134 rotating equipments > 14 km of pipes > isometric drawings > piping objects Page 15

16 Advantages of Ti-Cons CP Process Based on the most modern technology and equipment Sustainable technology regarding ressources and environment Best technology available Proven technology (2 running installations in China) Very detailled engineering ready for construction (> documents) Long experience in planing, commissioning and operation Page 16

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