How to Remove Arsenic, Antimony & Bismuth from Copper

arsenic,_antimony_and_bismuth_from_copper

The ores of copper are usually associated with minerals containing arsenic, antimony and bismuth. Whatever the means adopted for extracting the copper, these metals are usually found, to a greater or less extent, in the product. There is, however, usually some elimination in the various metallurgical operations to which the ores are subjected, and some […]

Leaching Sulfides by Sulphuric Acid: Copper

composition-of-daily-sulphides

The improvement in leaching introduced by the Russell process has stimulated the development of processes for refining lixiviation-sulphides. In the early days several processes for dealing with the sulphides were proposed, and some of them were tried more or less ; but the business finally settled down to sending the sulphides to the smelters, although […]