公开(公告)号：US3985553A

公开(公告)日：1976-10-12

申请号：US572817

申请日：1975-04-29

申请人： Wasyl Kunda ,  Boris Rudyk ,  Michael Kohut

发明人： Wasyl Kunda ,  Boris Rudyk ,  Michael Kohut

IPC分类号： C01C1/24 ,  C22B15/00 ,  C22B15/10

CPC分类号： C22B15/0078 ,  C01C1/24 ,  C22B15/0006 ,  Y02P10/236 ,  Y10S423/15

摘要： The process involves subjecting finely divided particles of copper-bearing mineral sulphide ores or concentrates to a first stage leach in which the particles are leached in an aqueous ammoniacal ammonium carbonate solution in the presence of free oxygen to provide a first stage leach slurry which contains dissolved copper values. Residue is separated from the first stage leach slurry and is subjected to attrition in order to rub off an outer layer therefrom and expose surfaces of the residue beneath the layer. The resulting residue is passed to a second stage leach which is carried out in the same way as the first leach. Solution is removed from the second leach stage and is recycled to the first leach stage. The first stage leach solution is further treated for recovery of copper and ammonium sulphate.

摘要翻译： 该方法包括将含有铜的矿物硫化物矿石或浓缩物的细碎颗粒经受第一阶段浸出，其中在游离氧存在下将颗粒浸入含氨基碳酸铵水溶液中，以提供含有溶解的 铜值。 残留物与第一级浸出浆液分离，并进行磨损以从其上擦除外层，并将残留物的表面暴露在层下面。 将所得残余物通入第二阶段浸出物，其以与第一浸出物相同的方式进行。 溶液从第二浸出阶段除去并被再循环到第一浸出阶段。 进一步处理第一阶段浸出溶液以回收铜和硫酸铵。