![]() ![]() when the ore is rich in precious metals) by hydrometallurgical processes. Using pyrometallurgical processes (smelting or roasting) or in a few cases (e.g. Typical steps include mining, crushing and grinding of ore, sometimes followed by froth flotation and separation of the metal ![]() The choice of processÄepends on the composition of the ore and other factors. Several processes for the production of crude antimony(III) oxide or metallic antimony from virgin material. Oxidation of antimony metal dominates in Europe. It is produced via two routes, re-volatilizing of crude antimony(III) oxide and by oxidation of antimony metal. China produces the largest share followed by US/Mexico, Europe, Japan andĪs of 2010, antimony(III) oxide was produced at four sites in EU27. Global production of antimony(III) oxide in 2012 was 130,000 tonnes, an increase from 112,600 tonnes in 2002. Like most polymeric oxides, Sb2O3 dissolves in aqueous solutions with hydrolysis. It is found in nature as the minerals valentinite and senarmontite. It is the most important commercial compound of antimony. ![]()
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