Obtaining copper

CCHEMISTRY METALLURGY C22Metallurgy C22BPRODUCTION AND REFINING OF METALS PRETREATMENT OF RAW MATERIALS

C22B15/00Obtaining copper

C22B15/0002Preliminary treatment C22B15/0004without modification of the copper constituent C22B15/0006by dry processes C22B15/0008by wet processes C22B15/001with modification of the copper constituent C22B15/0013by roasting C22B15/0015Oxidizing roasting C22B15/0017Sulfating or sulfiding roasting C22B15/0019Chloridizing roasting C22B15/0021by reducing in gaseous or solid state C22B15/0023Segregation C22B15/0026Pyrometallurgy C22B15/0028Smelting or converting C22B15/003Bath smelting or converting C22B15/0032in shaft furnaces C22B15/0034in rotary furnaces C22B15/0036in reverberatory furnaces C22B15/0039in electric furnaces C22B15/0041in converters C22B15/0043in rotating converters C22B15/0045in muffles, crucibles, or closed vessels C22B15/0047flash smelting or converting C22B15/005in a succession of furnaces C22B15/0052Reduction smelting or converting C22B15/0054Slag, slime, speiss, or dross treating C22B15/0056Scrap treating C22B15/0058Spent catalysts C22B15/006working up of molten copper C22B15/0063Hydrometallurgy C22B15/0065Leaching or slurrying C22B15/0067with acids or salts thereof C22B15/0069containing halogen C22B15/0071containing sulfur C22B15/0073containing nitrogen C22B15/0076Cyanide groups C22B15/0078with ammoniacal solutions C22B15/008with non-acid solutions containing salts of alkali or alkaline earth metals C22B15/0082with water C22B15/0084Treating solutions C22B15/0086by physical methods C22B15/0089by chemical methods C22B15/0091by cementation C22B15/0093by gases C22B15/0095Process control or regulation methods C22B15/0097Sulfur release abatement