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公开(公告)号：US20180237886A1
公开(公告)日：2018-08-23
申请号：US15764059
申请日：2016-09-29
申请人： METALEACH LIMITED
CPC分类号： C22B19/24 , C22B3/0068 , C22B3/14 , Y02P10/234
摘要： A method for recovering zinc from an aqueous ammoniacal ammonium carbonate zinc solution, the method comprising the steps of: Contacting the aqueous ammoniacal ammonium carbonate zinc solution with an organic solution of a zinc extractant, such that a portion of the zinc is transferred from the aqueous ammoniacal ammonium carbonate zinc solution, producing a zinc-depleted aqueous ammoniacal ammonium carbonate solution and a zinc-enriched organic solution of a zinc extractant; Separating the zinc-enriched organic solution of a zinc extractant from the zinc-depleted aqueous ammoniacal ammonium carbonate solution; Contacting the zinc-enriched organic solution with an aqueous acidic solution, producing a zinc-enriched aqueous acidic solution and a zinc-depleted organic solution of a zinc extractant; and Recovering zinc from the zinc-enriched aqueous acid solution.
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公开(公告)号：US09732399B2
公开(公告)日：2017-08-15
申请号：US13757468
申请日：2013-02-01
申请人： ZincOx Resources PLC
发明人： Antoine Masse
CPC分类号： C22B19/02 , C22B3/0005 , C22B3/0068 , C22B7/007 , C22B7/02 , C22B19/22 , C22B19/30 , Y02P10/234
摘要： A method for producing metal zinc by liquid/liquid extraction, comprising leaching of a zinc-bearing solid raw material containing antimony with a slightly acid aqueous solution, at a pH value maintained above 3 and less than or equal to 5, with formation of a suspension, drawing-off from the suspension of an aqueous phase containing zinc in solution to be subject to the extraction, additional leaching of the remaining suspension with an acid aqueous solution, at a pH value maintained below 3.5 and greater than or equal to 1, with formation of a pulp, introduction of a neutralizing agent in this pulp with coprecipitation of antimony and other impurities and separation from this neutralized pulp of a zinc-bearing aqueous solution which is recycled to the step for leaching the zinc-bearing solid raw material.
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公开(公告)号：US07291202B2
公开(公告)日：2007-11-06
申请号：US10944753
申请日：2004-09-21
CPC分类号： C22B11/04 , C22B3/0068 , C22B3/10 , C22B3/44 , Y02P10/234
摘要： A process for mutual separation of platinum group metals (PGM), wherein highly stable compounds and steps are used to efficiently remove impurity elements while preventing increase of impurity content relative to that of the PGM in the mother liquor and also preventing decomposition of a chloro complex, and palladium, platinum, iridium, ruthenium and rhodium are separated mutually in such a way that each of the separated PGM has a sufficient purity to be a commercial product.A process for mutual separation of PGM, comprising the first step for leaching a raw material containing PGM and impurity elements, second step for removing the impurity elements from the leach liquor by solvent extraction, third step for recovering palladium from the raffinate, fourth step for removing cationic impurity elements from the raffinate by solvent extraction, fifth step for recovering platinum from the raffinate by hydrolysis, sixth step for recovering ruthenium from the precipitate by leaching, and seventh step for recovering iridium by solvent extraction to prepare the stripping liquor containing iridium and raffinate containing rhodium.
摘要翻译： 铂族金属（PGM）的相互分离方法，其中使用高度稳定的化合物和步骤来有效地除去杂质元素，同时防止杂质含量相对于母液中的PGM增加，并且还防止氯络合物的分解 ，钯，铂，铱，钌和铑相互分离，使得每个分离的PGM具有足够的纯度作为商业产品。 一种用于相互分离PGM的方法，包括用于浸出含有PGM和杂质元素的原料的第一步骤;通过溶剂萃取从浸出液中除去杂质元素的第二步骤;从萃余液中回收钯的第三步骤; 通过溶剂萃取从萃余液中除去阳离子杂质元素;通过水解从萃余液回收铂的第五步骤;通过浸出从沉淀物中回收钌的第六步骤;通过溶剂萃取回收铱的第七步骤，制备含有铱的汽提液; 含有铑的残液。
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公开(公告)号：US20050066774A1
公开(公告)日：2005-03-31
申请号：US10944753
申请日：2004-09-21
CPC分类号： C22B11/04 , C22B3/0068 , C22B3/10 , C22B3/44 , Y02P10/234
摘要： A process for mutual separation of platinum group metals (PGM), wherein highly stable compounds and steps are used to efficiently remove impurity elements while preventing increase of impurity content relative to that of the PGM in the mother liquor and also preventing decomposition of a chloro complex, and palladium, platinum, iridium, ruthenium and rhodium are separated mutually in such a way that each of the separated PGM has a sufficient purity to be a commercial product. A process for mutual separation of PGM, comprising the first step for leaching a raw material containing PGM and impurity elements, second step for removing the impurity elements from the leach liquor by solvent extraction, third step for recovering palladium from the raffinate, fourth step for removing cationic impurity elements from the raffinate by solvent extraction, fifth step for recovering platinum from the raffinate by hydrolysis, sixth step for recovering ruthenium from the precipitate by leaching, and seventh step for recovering iridium by solvent extraction to prepare the stripping liquor containing iridium and raffinate containing rhodium.
摘要翻译： 铂族金属（PGM）的相互分离方法，其中使用高度稳定的化合物和步骤来有效地除去杂质元素，同时防止杂质含量相对于母液中的PGM增加，并且还防止氯络合物的分解 ，钯，铂，铱，钌和铑相互分离，使得每个分离的PGM具有足够的纯度作为商业产品。 一种用于相互分离PGM的方法，包括用于浸出含有PGM和杂质元素的原料的第一步骤;通过溶剂萃取从浸出液中除去杂质元素的第二步骤;从萃余液中回收钯的第三步骤; 通过溶剂萃取从萃余液中除去阳离子杂质元素;通过水解从萃余液回收铂的第五步骤;通过浸出从沉淀物中回收钌的第六步骤;通过溶剂萃取回收铱的第七步骤，制备含有铱的汽提液; 含有铑的残液。
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5.发明申请Solvent extraction process for recovering nickel and cobalt from each solutions 审中-公开从各种溶液中回收镍和钴的溶剂萃取工艺公开(公告)号：US20040050212A1
公开(公告)日：2004-03-18
申请号：US10380685
申请日：2003-09-17
发明人： Chu Yong Cheng , Martin Houchin
IPC分类号： C22B003/26
CPC分类号： C22B3/0066 , C22B3/0024 , C22B3/0068 , C22B23/0453 , C22B23/0484 , Y02P10/234
摘要： A method of separating nickel, cobalt or both from other cations contained in a leach solution, the method including the steps of subjecting the leach solution to separate solvent extraction steps using an organophosphinic acid, a carboxylic acid and an organophosphinic acid.
摘要翻译： 一种从浸出溶液中所含的其它阳离子分离镍，钴或二者的方法，所述方法包括以下步骤：使用有机亚膦酸，羧酸和有机亚膦酸对浸出溶液进行溶剂萃取步骤的分离。
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公开(公告)号：USRE36990E
公开(公告)日：2000-12-19
申请号：US686953
申请日：1996-07-26
CPC分类号： C22B3/0068 , C22B30/00 , Y02P10/234
摘要： A method for the recovery of a metal from an organic complex thereof, said method comprising treating the complex with a weakly acid aqueous solution of an alkali metal, an alkaline earth metal or ammonium chloride having a chloride content of at least 4 molar whereby said complex is decomposed and metal ions are transferred to the aqueous solution.
摘要翻译： 一种从其有机络合物中回收金属的方法，所述方法包括用氯化物含量为至少4摩尔的碱金属，碱土金属或氯化铵的弱酸性水溶液处理络合物，由此所述络合物 分解并将金属离子转移到水溶液中。
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公开(公告)号：US5332420A
公开(公告)日：1994-07-26
申请号：US21901
申请日：1993-02-24
CPC分类号： C22B3/0067 , C22B3/0068 , C22B3/20 , Y02P10/234
摘要： A method for the recovery of a metal from an organic complex thereof, said method comprising treating the complex with a weakly acid aqueous solution of an alkali metal or alkaline earth metal chloride having a chloride content of at least 4 molar whereby said complex is decomposed and metal ions are transferred to the aqueous solution.
摘要翻译： 一种从其有机络合物中回收金属的方法，所述方法包括用氯化物含量为至少4摩尔的碱金属或碱土金属氯化物的弱酸性水溶液处理络合物，由此所述络合物被分解， 金属离子转移到水溶液中。
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8.发明授权Ammonium chloride-ammonium hydroxide strip for the recovery of anhydrous zinc chloride 失效氯化铵 - 氢氧化铵带用于回收无水氯化锌
公开(公告)号：US4500498A
公开(公告)日：1985-02-19
申请号：US571935
申请日：1984-01-19
申请人： Paul R. Kruesi , William H. Kruesi
发明人： Paul R. Kruesi , William H. Kruesi
CPC分类号： C22B3/0016 , C01G9/003 , C01G9/04 , C22B3/0012 , C22B3/0068 , Y02P10/234
摘要： Anhydrous zinc chloride is produced from an aqueous feed solution containing zinc chloride from an aqueous feed solution containing zinc chloride. The zinc chloride is extracted onto an organic extractant known to the art such as tributyl phosphate, primary, secondary or tertiary amines, and quaternary amine salts. The loaded extractant is then stripped with aqueous stripping solution containing ammonium chloride and ammonium hydroxide. The zinc ammine chloride formed in this aqueous stripping solution is separated from the stripping solution and can then be heated to form anhydrous zinc chloride and ammonia. This anhydrous zinc chloride is suitable as a feed material to a fused salt electrolysis process for the production of zinc.
摘要翻译： 从含有氯化锌的水性进料溶液的含有氯化锌的水性进料溶液中制备无水氯化锌。 将氯化锌萃取到本领域已知的有机萃取剂中，例如磷酸三丁酯，伯，仲或叔胺和季胺盐。 然后用含有氯化铵和氢氧化铵的水性剥离溶液汽提装载的萃取剂。 将该水性剥离溶液中形成的氯化亚锡氯化物与汽提溶液分离，然后加热形成无水氯化锌和氨。 该无水氯化锌适合用作生产锌的熔盐电解方法的原料。
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9.发明授权Extraction of plutonium ions from aqueous sulfuric acid solutions with D.sub.2 EHPA or D.sub.2 EHPA/TOPO 失效用D2EHPA或D2EHPA / TOPO从硫酸水溶液中提取钚离子
公开(公告)号：US4442071A
公开(公告)日：1984-04-10
申请号：US286168
申请日：1981-07-23
申请人： Karl H. Lieser , Bernd Stojanik
发明人： Karl H. Lieser , Bernd Stojanik
CPC分类号： C22B3/0095 , C01G56/001 , C01G56/003 , C22B3/0025 , C22B3/0068 , C22B3/0091 , C22B60/04 , Y02P10/234
摘要： Method for separating plutonium ions from an aqueous solution containing sulfuric acid. The method comprises introducing into the aqueous solution 0.1 to 1.5 moles of nitrate ions per liter of aqueous solution. To the aqueous solution containing nitrate ions, there is added an organic phase comprising a solution of 0.1 to 1.0 M di-2-ethylhexylphosphoric acid in kerosene in a volume ratio of the aqueous solution containing nitrate ions to the organic phase of between 1:1 and 4:1 to extract the plutonium ions into the organic phase. The organic phase containing plutonium ions is then separated from the aqueous solution. A re-extractant aqueous solution containing 0.2 to 1.0 M oxalic acid, and 0 to 0.5 M nitric acid is then added to the separated organic phase to re-extract the plutonium ions into the re-extractant aqueous solution. The re-extractant aqueous solution containing plutonium ions is then separated from the organic phase.
摘要翻译： 从含有硫酸的水溶液中分离钚离子的方法。 该方法包括每升水溶液将0.1-1.5摩尔硝酸根离子引入水溶液中。 向含有硝酸根离子的水溶液中加入有机相，其中含有0.1〜1.0M二-2-乙基己基磷酸的煤油溶液，其含有硝酸根离子与有机相的水溶液的体积比为1:1 和4：1以将钚离子萃取到有机相中。 然后将含有钚离子的有机相与水溶液分离。 然后将含有0.2〜1.0M草酸和0〜0.5M硝酸的再萃取剂水溶液加入到分离的有机相中，将钚离子重新萃取到再萃取剂水溶液中。 然后将含有钚离子的再萃取剂水溶液与有机相分离。
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公开(公告)号：US4334999A
公开(公告)日：1982-06-15
申请号：US240186
申请日：1981-03-03
申请人： David A. Cornwell
发明人： David A. Cornwell
CPC分类号： B01D11/028 , C22B3/0068 , C22B3/0087 , Y02P10/234
摘要： A process for extracting metal ions from a water insoluble metal base or salt dispersed in an aqueous solution using liquid ion exchange is described. The liquid ion exchange extractant is an alkyl phosphoric acid or acid phosphate (APA) which is dissolved in a water immiscible organic solvent. In contrast to prior art processes where the metal ion is dissolved in an aqueous solution, the insoluble metal base or salt is one which is reactive from an aqueous solution with the APA to replace one of the acid hydrogens to form an alkyl phosphate metal salt (APS) in the organic solvent. The metal ion can be recovered from the APS in the organic solvent by stripping with an aqueous acidic solution so that the metal ion is removed from the APS to form a metal salt in the aqueous acidic solution and the APA in the organic solvent is regenerated for reuse. The process is particularly adapted to producing alum from aluminum hydroxide which is dispersed in an aqueous sludge resulting from precipitation or coagulation with alum in potable water clarification. The aluminum ion is extracted by the APA from the aluminum hydroxide and then recovered by using an aqueous solution of sulfuric acid to remove the aluminum ion and to form aluminum sulfate in an acidic aqueous solution, referred to as "liquid alum", which can be reused.
摘要翻译： 描述了使用液体离子交换从分散在水溶液中的水不溶性金属基质或盐提取金属离子的方法。 液体离子交换萃取剂是溶解在与水不混溶的有机溶剂中的烷基磷酸或酸式磷酸酯（APA）。 与金属离子溶解在水溶液中的现有技术方法相反，不溶性金属碱或盐是与APA的水溶液反应以代替其中一个酸氢形成磷酸烷基磷酸金属盐的方法 APS）在有机溶剂中。 金属离子可以通过用酸性水溶液汽提从有机溶剂中的APS中回收，以使金属离子从APS中除去，从而在酸性水溶液中形成金属盐，再生有机溶剂中的APA再生 重用。 该方法特别适用于由氢氧化铝产生明矾，其分散在由饮用水澄清中的明矾沉淀或凝结而产生的水性污泥中。 铝离子由APA从氢氧化铝中提取，然后通过使用硫酸水溶液回收以除去铝离子并在酸性水溶液中形成硫酸铝，称为“液体明矾”，其可以是 重复使用
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