Copper: Red-brick Metal, Ductile With Electrical And High Thermal Conductivity.
Obtaining: - Generally From Sulphurous Concentrates, By Melting For Matt, Followed By Concreting And Obtaining Blister Copper (about 97.5% Cu). After Thermal Refining Of The Converter Copper, Thermal Refined Copper (about 99% Cu) Is Obtained, Followed By Final Purification By Electrolysis Up To Min. 99.95% Cu
Use :
- In Particular In The Form Of Electric Conductors For The Transport Of Electric Power Or In Windings For Electric Motors. A Large Share Of Copper Consumption Is The Manufacture Of Various Brands Of Alloys (brass, Bronze).
- In Civil And Industrial Constructions, They Are Mainly Used As Pipes For Installations Or Roof Tables.
Properties : - Red-brick Metal, Ductile With Electrical And High Thermal Conductivity.
Material Specification : Stas 201 / 1-80.
Brand : Copper Cathodes With 99.99k; With 99.97k, Cu 99.95k
Form Of Presentation : Cathodes
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Zinc: White-white Metal, Brittle, Cold-deformable But Possible To Be Laminated Between 100 - 150oc.
Obtaining :
- From Complex Concentrates (pb - Zn) By Oxidative Frying, Followed By A Reduction In Furnace (isp Process).
- The Crude Zinc Obtained In The Blast Furnace Is Subsequently Purified Either By Fractional Distillation (new Jersey Process) Or By Electrolytic Refining.
- By Hydrometallurgical Way, When The Fried Concentrate Is Subjected To Solubilization With Znso4 Formation. After Purification, The Solution Is Subjected To Electrolysis, A Process Resulting In A Zinc With A Purity Of Min. 99.99% Zn.
Use :
-coating Of Steel Sheets And Foils For Corrosion Protection;
-obtaining Of Copper-based Alloys, Resistant To Corrosion (brass, Alpaca) -
Obtaining Of Castings Under Pressure From Zinc-based Alloys (zamac) Etc.
-obtaining Zinc Oxide With Uses In The Pigment Factory, Rubber Industry, Medicine, Ceramics, Etc.
Properties: - White-blue, Brittle, Cold-deformable But Possible Laminate Between 100 - 150oc.
Material Specification: - Stas 646-88, Astm B949, Sr En 1179: 2001
Make :
- Shg - Min. 99,995% Zn
- Hg - Min. 99.95% Zn
- Gob - Min. 98,5% Zn.
