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公开(公告)号：US09322079B2
公开(公告)日：2016-04-26
申请号：US12279567
申请日：2007-02-14
IPC分类号： C22B15/00
CPC分类号： C22B15/0089 , C22B15/0071 , Y02P10/236
摘要： The invention relates to a method whereby copper is recovered from a copper sulphide ore containing pyrite. According to the method the ore is ground and leached into a solution containing sulfuric acid in atmospheric conditions by means of trivalent copper. As the copper sulphide leaches out, the trivalent iron is reduced to divalent and is oxidized back to trivalent by means of oxygen during leaching. Leaching is carried out in a closed reactor, where the undissolved gas rising from the solution in the supper section of the reactor is circulated back into the suspension of solution, solids and gas. leaching is performed in the presence of both divalent and trivalent iron and preferably with the dissolved copper acting as a catalyst to promote leaching. The conditions are adjusted to be such that the pyrite of the ore essentially does not dissolve.
摘要翻译： 本发明涉及从含有硫铁矿的硫化铜矿中回收铜的方法。 根据该方法，将矿石研磨并通过三价铜在大气条件下浸提成含有硫酸的溶液。 当硫化铜浸出时，三价铁还原为二价，并在浸出过程中通过氧气氧化回三价。 在封闭的反应器中进行浸出，其中从反应器的超级部分中的溶液中升出的未溶解气体循环回到溶液，固体和气体的悬浮液中。 在二价和三价铁存在下进行浸出，优选用溶解的铜作为催化剂促进浸出。 调整条件使得矿石的黄铁矿基本上不溶解。
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公开(公告)号：US20090078086A1
公开(公告)日：2009-03-26
申请号：US12279567
申请日：2007-02-14
IPC分类号： C22B15/00
CPC分类号： C22B15/0089 , C22B15/0071 , Y02P10/236
摘要： The invention relates to a method whereby copper is recovered from a copper sulphide ore containing pyrite. According to the method the ore is ground and leached into a solution containing sulfuric acid in atmospheric conditions by means of trivalent copper. As the copper sulphide leaches out, the trivalent iron is reduced to divalent and is oxidized back to trivalent by means of oxygen during leaching. Leaching is carried out in a closed reactor, where the undissolved gas rising from the solution in the supper section of the reactor is circulated back into the suspension of solution, solids and gas. leaching is performed in the presence of both divalent and trivalent iron and preferably with the dissolved copper acting as a catalyst to promote leaching. The conditions are adjusted to be such that the pyrite of the ore essentially does not dissolve.
摘要翻译： 本发明涉及从含有硫铁矿的硫化铜矿中回收铜的方法。 根据该方法，将矿石研磨并通过三价铜在大气条件下浸提成含有硫酸的溶液。 当硫化铜浸出时，三价铁还原为二价，并在浸出过程中通过氧气氧化回三价。 在封闭的反应器中进行浸出，其中从反应器的超级部分中的溶液中升出的未溶解气体循环回到溶液，固体和气体的悬浮液中。 在二价和三价铁存在下进行浸出，优选用溶解的铜作为催化剂促进浸出。 调整条件使得矿石的黄铁矿基本上不溶解。
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公开(公告)号：US06387240B1
公开(公告)日：2002-05-14
申请号：US09762443
申请日：2001-03-16
申请人： Leif Rosenback
发明人： Leif Rosenback
IPC分类号： C25C108
CPC分类号： C22B23/0453 , C22B3/0068 , C22B23/043 , Y02P10/234
摘要： Invention relates to a method for the removal of sulfur from the leaching cycle of nickel processes such as leaching of nickel matte. According to the method, anolyte generated in nickel electrowinning is neutralized with the aid of a calcium-based neutralizing agents, wherein sulfur is removed from the leaching cycle as gypsum.
摘要翻译： 本发明涉及一种从镍过程浸出循环中去除硫的方法，例如浸出镍锍。 根据该方法，在镍电解提取中产生的阳极电解液借助于钙基中和剂中和，其中硫作为石膏从浸出循环中除去。
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