Metal, esp. copper and zinc electrowinning from sulphate - and opt. chloride soln., in diaphragm cell using chloride anolyte to give chlorine and alkali(ne earth) chloride by products
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METHOD FOR PRODUCING A HIGH TEMPERATURE CAST IRON ALLOY AND THE USE THEREOF
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METHOD FOR PRODUCING SULFIDIC COPPER CONCENTRATES
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PROCESS FOR PROCESSING USED AMMONIA CU ETC SOLUTIONS
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Process for the precipitation and separation of arsenic from copper-containing solutions
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Lowering calcium content in zinc oxide obtd. from clinker - by addn. of a silica-source prior to reaction with carbon source
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PROCESS FOR THE SELECTIVE SEPARATION AND EXTRACTION OF SILVER AND GOLD FROM MAINLY CHLORIDE SOLUTIONS
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Chloride removal from copper or zinc sulphate soln. - by pptn. with cuprous cpd. under acid conditions
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Selective separation of cobalt, nickel or cadmium - from chlorinated zinc solns. using elementary sulphur and metallic zinc
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Cobalt, nickel and/or cadmium separation from zinc - in chloride solns. by sulphide cementation with zinc and sulphur
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Process for the recovery of pure zinc oxide
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Multistage solvent extraction of nonferrous metals - using cation exchange liq. with different fixing capacities
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Heat resistant cast iron - alloyed with (scrap) nickel-base alloy is used as car exhaust manifold
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PROCESS FOR OBTAINING HIGHLY PURE ZINC COMPOUNDS FROM TECHNICAL, IN PARTICULAR AS-CONTAINING MATERIALS BY AMMONIAL CALCIUM SOLVENT EXTRACTION
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Pure copper sulphate soln. prodn. - from impure copper salts by a hydrometallurgical treatment
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PROCESS FOR THE RECOVERY OF HIGHLY PURE ELECTROLYTE COPPER BY REDUCING ELECTROLYSIS
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PROCESS FOR ENHANCING SILVER FROM SILVER AND LEAD-CONTAINING RESIDUES
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Procedure for the selective extraction of copper from aqueous solutions of sulfate. (Machine-translation by Google Translate, not legally binding)
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PROCESS FOR RECOVERING WORK LEAD
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Recovery of copper and zinc from sulphate solutions - by pptn. as basic sulphates at controlled pH and filtering off copper rich solids
