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METHOD FOR LEACHING CHALCOPYRITE CONCENTRATE
申请公布号：EP2449139(A1)
申请号：EP20100791667
申请日期：2010.06.10
申请公布日期：2012.05.09
发明人：RUONALA, MIKKO;LEPPINEN, JAAKKO;TIIHONEN, JARI
分类号：C22B3/08;C22B1/00;C22B15/00
主分类号：C22B3/08
摘要：<p>The invention relates to a method for leaching bulk concentrate of chalcopyrite-type by means of an aqueous solution containing sulphuric acid and an oxygen feed at atmospheric pressure and at a temperature between 75° C. and the boiling point of the solution. It is typical of the method that the particle size of the concentrate to be fed into leaching is in the region of 80% below 60-100μm and that the concentrate is leached with an aqueous solution, the acid concentration of which is regulated to be around 20-90 g/l.</p>
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