ALUMINIUM-HYDROXIDES WET- AND DRIED HYDRATES

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1 MAL PRODUCTION AND TRADE CO. LTD. PRODUCT BROCHURE FOR MORE INFORMATION PLEASE VISIT

2 ALUMINIUM-HYDROXIDES The aluminium-trihydroxide production is based on Bayer process, where the raw material is bauxite. Aluminium-trihydrate (ATH) is produced in different grades: wet, dried, ground and finely precipitated ones. Most important characteristics of ATHs are: - non-toxic - medium abrasive power - soft (Mohs hardness appr. 2.5) - chemically bounded water, looses appr. 35 % water-content between C - strong adsorption of oil and water WET- AND DRIED HYDRATES Wet and dried hydrates are mainly used as raw material in the production of: - synthetic zeolites - aluminium compounds - glasses, ceramics, refractories - other chemical products WET AND DRIED HYDRATE TYPES Wet types Dried types ALH-D80 ALH-W AF Al(OH) 3 * % ** ** SiO 2 % ** ** Fe 2 O 3 % 0.02 ** ** 0.02 Na 2 O total % 0.2 ** 0.3 ** Moisture % Bulk density kg/m Average particle size d 50 µm Whiteness % 75 ** 90 ** ** Determined in dried material at 105 o C

3 GROUND, VISCOSITY OPTIMIZED AND FINE PRECIPITATED HYDRATES All these grades are white (whiteness > 90 %) Ground and finely precipitated hydrates are mainly used as environmentally friendly flame retardant filler materials in the production of: - cable insulation - thermoplastics - cross-linked elastomers - polyurethanes - PVC - water-based dispersions - polyester resins - papers - epoxy resins - paints Al(OH) 3 * % SiO 2 % Fe 2 O 3 % 21AF GROUND HYDRATE TYPES 2AF 28AF 8AF 38AF 30AF 50AF 59AF Na 2 O total % Moisture % Bulk density kg/m 3 Aver. particle size d µm Whiteness % GROUND AND FINELY PRECIPITATED HYDRATES Cumulative values [ %] ,0 0,1 1,0 10,0 100, ,0 grain size [µm]

4 VISCOSITY OPTIMIZED HYDRATE TYPES Al(OH) 3 * % Na 2 O total % Fe 2 O 3 % SiO 2 % Moisture % Bulk density kg/m Whiteness % Oil absorption Average particle d 50 ** ml/100 g µm µm (wet sieve) % µm (wet sieve) ** Only for information % FINE PRECIPITATED HYDRATE TYPES 60F 60DLS 90 F 90DLS 120 F Al(OH) 3 * % SiO 2 % Fe 2 O 3 % Moisture % Whiteness % Bulk density kg/m Average particle size d 50 Specific surface area BET Electrical conductivity µm m 2 /g µs/cm Certain surface treatment for special request is available.

5 ALUMINIUM-OXIDES The alumina production is based on wet hydrate resulted from Bayer process. To fulfil the different requirements we produce a wide range of alumina and ground alumina with normal and low soda content, controlled specific surface and different grinding fineness of grain. Important characteristics of aluminium-oxides are: - non-toxic - medium to high abrasive power - Mohs hardness appr. 9 - high chemical resistance - good fire-resistance - good ceramic properties UNGROUND- AND GROUND ALUMINAS Ground and unground aluminas are mainly used in the production of: - fused white, ruby and pink corundum - household ceramics - tabular alumina - engineering-ceramics - glazes and frits - refractories - glasses - polishing and abrasive materials B15 Al 2 O 3 * % 91 Na 2 O total % 0.4 Fe 2 O 3 % SiO 2 % CaO % Ex CALCINED ALUMINAS Ex Ex Ex325 Ex33 GB1 Ex34 Ex35 LS α-al 2 O 3 % ** 98 ** 98 ** Loss on ignition % Specific surface area BET Primary crystal size Average particle size d 50 m 2 /g µm µm Bulk density kg/m ** Only for information

6 DN- 7P GROUND ALUMINAS G4-4G DN- 4F DN- 4S DN- 3S EL- 7P EL- 4F EL- 4S EL- 3S Al 2 O 3 * % Na 2 O total % Fe 2 O 3 % SiO 2 % CaO % Loss on ignition % Specific surface area BET Average particle size d 50 m 2 /g µm d 90 µm µm (wet sieve) + 63 µm (wet sieve) % F: 3 S: % 3 3 F: 3 S: REACTIVE ALUMINAS EL-2S DN-2S BN-2F BN-2S Al 2 O 3 * % Na 2 O total % Fe 2 O 3 % SiO 2 % CaO % 0.04 Specific surface area BET m 2 /g Average particle size d 50 µm d 90 µm µm (wet sieve) % µm (wet sieve) % 3 Green Density / 100MPa ** g/cm Fired Density at 1600 C/2h ** g/cm ** Only for information. Not determined for each delivery.

7 PRODUCT TYPES Calcination degree POLISHING ALUMINAS Average grain size d 50 (µm) Sieve analysis residue on BET (m 2 /g) Oil adsorption (ml/100 g) Bulk density (kg/m 3 ) P90 low µm 0.5 % P90-20 low µm 0.1 % DF2 low µm 1 % P90-06 low µm 20 % P90-02 low µm 5 % P95 medium µm 0.5 % DF223 medium µm 0.1 % P95-08 medium µm 0.5 % P95-06 medium µm 0.5 % P95-01 medium µm 0.1 % DFC high µm 0.5 % P54 high µm 0.5 % DFM high µm +125 µm 15 % 3 % P54-04 high µm 0.5 % Al 2O 3 99% Na 2O 0.3% Fe 2O % SiO %

8 SYNTHETIC ZEOLITE Connected to the Bayer process we produce synthetic zeolite type 4A. Important characteristics of synthetic 4A zeolite are: - environment-friend - high purity - special crystal structure - high ion exchange capacity - good adsorptivity Based on these properties zeolite is used as: - detergent builder - catalyst - water-softener - adsorbent Type Zeolon P4A Al 2 O 3 % Na 2 O % SiO 2 % L. O. I. % Ca ion exchange capacity at 20 C mg/g 160 Whiteness % 95 Average particle size d 50 µm µm (wet sieve) % 0.5 Total Fe content ppm 250 Bulk density ** kg/m ** Only for information

9 GALLIUM Gallium is a relatively rarely occurring element. Our company is one of the few primary gallium producers in the world. As a result of different purification process, metal gallium is produced with purity of to %. The main application fields of gallium are: - optoelectronic devices, LEDs - semi-conductors - very high frequency communication devices - computing (IT) equipments Elements GALLIUM 4N Detection limit ppm (weight) Al 1 Mg 1 Si 1 Fe 1 Ni 1 Cu 5 Zn 10 Hg 12 Pb 2 GALLIUM 6N and 7N with much less impurities content (measured in ppb) than Gallium 4N are also produced by MAL and were certified in Canada.

10 ALUMINIUM CASTING ALLOYS The ALU-FÉM Division produces on demand aluminium casting alloys from purchased scrap for metal foundries with its good experiences, modern equipments and well-tried technology. Typical qualities: DIN 226, DIN 230, DIN 231, DIN 239, ADC 10, ADC 12; A 383, A 390 AS13, AS10G, AS9U3G AlSi18CuNiMg Analysis of alloys: ARL 3460 type optical emission spectrometer Weight and measurements: 7 kg 665 x 90 x 50 mm Packing: bundled and strapped with steel and plastic band Delivery: by truck and rail according to EN ISO 9001 TÜV CERT Quality management: On separate customer order: analysis for 29 elements within 48 hours at the qualities Al -99.7; AlSi; AlSiCu; AlMgSi; AlMg2-5 Other: The technical delivery conditions are agreed in every case when concluding the contract. Special customer requirements can be met as well.

11 MAL PRODUCTION AND TRADE COMPANY LIMITED BY SHARES IS EXPECTING YOUR KIND INQUIRIES AT THE FOLLOWING ADDRESSES: HEAD OFFICE H AJKA GYÁRTELEP 598 HRSZ.. (P..O.. BOX 124..) PHONE:: FAX:: E--MAIL:: TRADE CENTER H BUDAPEST LOGODI U.. 34//B.. PHONE:: FAX:: mal@mal.hu timfold@mal.hu