Brochantite

Brochantite

Properties of the Elements and Inorganic Compounds

Published in W. M. Haynes, David R. Lide, Thomas J. Bruno, CRC Handbook of Chemistry and Physics, 2016

W. M. Haynes, David R. Lide, Thomas J. Bruno

Name Acanthite Acmite Akermanite Alabandite Almandine Altaite Aluminum Alunite Analcite Anatase Andalusite Andradite Anglesite Anhydrite Annite Anorthite Anthophyllite Antimony Aragonite Argentite Argentopyrite Arsenic (gray) Arsenolite Arsenopyrite Azurite Baddeleyite Banalsite Barite Beryl Berzelianite Bismite Bismuth Bismuthinite Bixbyite Boehmite Borax Bornite (metastable) Breithauptite Brochantite Bromellite Bromyrite

The Synergistic Copper Process concept

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Journal Information

Published in Mineral Processing and Extractive Metallurgy, 2018

William Hawker, James Vaughan, Evgueni Jak, Peter C. Hayes

Copper can be precipitated from the leach solution in a number of ways to form an intermediate low-iron, copper-containing solid product. The most applicable to this discussion would be to precipitate the copper as a copper oxide-type solid. In practice, the precipitation of copper from sulphate solutions can be achieved by the cooling of saturated solutions, or by pH adjustment resulting in the formation of a basic copper sulphate solid, most likely brochantite (CuSO4.3Cu(OH)2), or its hydrated form, posnjakite (CuSO4.3Cu(OH)2.H2O) (Hawker 2015). The precipitation of the copper as an oxide or hydroxide through changing the pH requires only relatively cheap precipitation reagents, such as limestone. The process conditions required to produce the precipitated copper product from aqueous sulphate solutions at 25°C have recently been established and are summarised in Figure 6.

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Properties of the Elements and Inorganic Compounds

The Synergistic Copper Process concept