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| Zinc, one of the most common elements in the Earth's crust, is an important material for construction, industry as well as our daily lives. Each year we produce almost 140,000 tons of zinc of the best quality Z1 from ore concentrates and 40% recycling material ? for that we stand with our name Ruhr-Zink - RuZ1! |
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| Sulphuric acid is quantitatively the biggest 'by-product' in the value-added chain of our zinc production. Sulphuric acid is among the 20 most important chemicals in the chemical industry. It is put to a wide range of uses: as a desiccant, as a catalyst, for metal treatment or for the production of tensides. As an additive for food its number is E 513. |
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| Thanks to closed cycles, with our help by-products of zinc production become valuable raw materials. Lead/silver concentrates are good examples of them. |
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| Copper is an important raw material. Thanks to the relatively high price our copper concentrate is very much in demand. |
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| Zinc/iron concentrates (ZIC) are obtained as a product of precipitation during electrolyte purification. As a result of different methods of separation, ZIC have different moisture contents. Quality I: Separation by means of centrifuging
Quality II: Separation by means of filter presses (Zinc/iron Concentrates (Quality I) Zinc/iron Concentrates (Quality II))
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