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    • 6. 发明申请
    • METHODS FOR IMPROVING THE RECOVERY OF METAL LEACHING AGENTS
    • 改善金属浸出剂回收的方法
    • WO2005012581A2
    • 2005-02-10
    • PCT/US2004/024112
    • 2004-07-27
    • COGNIS CORPORATIONKORDOSKY, Gary, A.NISBETT, Andrew
    • KORDOSKY, Gary, A.NISBETT, Andrew
    • C22B
    • C22B15/0071C22B3/0005C22B15/0065C22B15/0084Y02P10/234Y02P10/236
    • Processes for metal leaching/solvent extraction are described which comprise: (a) providing a first aqueous leach pulp which comprises a mixture of leached solids and an aqueous leach solution comprising a metal, a leaching agent and water; (b) subjecting the first aqueous leach pulp to a first solid-liquid separation to provide a first clarified aqueous leach solution and a second aqueous leach pulp, wherein the second aqueous leach pulp comprises the leached solids at a % solids level greater than the first pulp; (c) subjecting the first clarified aqueous leach solution to a first solvent extraction prior to any significant dilution, whereby a first aqueous raffinate is obtained; (d) subjecting the second aqueous leach pulp to a second solid-liquid separation with dilution via an aqueous stream to obtain a second clarified aqueous leach solution; and (e) subjecting the second clarified aqueous leach solution to a second solvent extraction whereby a second aqueous raffinate is obtained.
    • 描述了用于金属浸出/溶剂萃取的方法,其包括:(a)提供第一含水浸出纸浆,其包含沥滤固体和包含金属,浸出剂和水的含水浸出溶液的混合物; (b)使第一含水浸出纸浆经受第一固液分离以提供第一澄清水溶液浸出溶液和第二含水浸提纸浆,其中第二含水浸出纸浆包含固体含量高于第一浸出液 纸浆; (c)在任何显着稀释之前使第一澄清的含水浸出溶液进行第一溶剂萃取,由此获得第一含水萃余液; (d)经第二水溶液浸出浆经第二固液分离,经水溶液稀释,得到第二澄清的含水浸出溶液; 和(e)使第二澄清的含水浸出溶液进行第二溶剂萃取,由此获得第二含水萃余液。
    • 7. 发明申请
    • INTERLACED SERIES PARALLEL CONFIGURATION FOR METAL SOLVENT EXTRACTION PLANTS
    • 用于金属溶剂萃取植物的互连系列并行配置
    • WO2004096400A2
    • 2004-11-11
    • PCT/US2004/010706
    • 2004-04-08
    • COGNIS CORPORATIONHEIN, Hans, C.ARAYA, Gabriel
    • HEIN, Hans, C.ARAYA, Gabriel
    • B01D
    • C22B3/0005C22B3/02C22B15/0063C22B23/04Y02P10/234Y02P10/236
    • An interlaced series parallel configuration for the extraction of metal values from an metal value containing aqueous is a special series parallel configuration wherein the stripped organic is first contacted in a second 5 extraction stage with the partially copper depleted aqueous stream exiting from a first extraction stage. This partially loaded organic then advances to a parallel extraction stage where it is contacted with a fresh volume of PLS and extracts additional copper. The organic then advances to the first extraction stage where it contacts a second stream of PLS. This approach 10 results in an overall higher recovery of copper than in the conventional modified series parallel configuration. An increase of 4% overall recovery of copper is achieved relative to that realized with the conventional series parallel . configuration.
    • 用于从含有金属含量的金属值提取金属值的交错串联并联构型是特殊的串联并行配置,其中剥离的有机物在第二个萃取阶段首先与部分贫铜的含水物流从第一提取阶段排出。 然后将该部分负载的有机物进入平行萃取阶段,在其中与新鲜体积的PLS接触并提取另外的铜。 然后有机物前进到其接触第二个PLS流的第一提取阶段。 这种方法10导致铜的总体回收率高于常规改进的串联并联配置。 相对于传统的串联平行实现的,铜的总回收率增加了4%。 组态。