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1. 发明授权

US5021133A Electrolytic method for producing ammonium paratungstate from cemented tungsten carbide 失效
标题翻译：从硬质合金碳化钨生产仲钨酸铵的电解方法
公开(公告)号：US5021133A
公开(公告)日：1991-06-04
申请号：US504480
申请日：1990-04-04
申请人： Clarence D. Vanderpool , Tai K. Kim
发明人： Clarence D. Vanderpool , Tai K. Kim
IPC分类号： C01G41/00 , C25B1/00
CPC分类号： C25B1/00 , C01G41/00
摘要： A method is disclosed for producing ammonium paratungstate from cemented tungsten carbide which comprises subjecting the cemented tungsten carbide to electrolysis by passing about 0.5 to about 20 volts through an ammoniacal solution selected from the group consisting of ammonium hydroxide-ammonium chloride solution, ammonium hydroxide-ammonium carbonate solution, and ammonium hydroxide-ammonium sulfate solution, wherein platinum and the cemented tungsten carbide serve as the anode and wherein the anode is immersed in the solution, to decompose the cemented tungsten carbide and form a solution of ammonium tungstate from which is crystallized ammonium paratungstate.
摘要翻译：公开了一种用于从硬质合金碳化钨生产仲钨酸铵的方法，该方法包括使固结的碳化钨经过约0.5至约20伏的电解，通过选自氢氧化铵 - 氯化铵溶液，氢氧化铵 - 铵的氨溶液碳酸盐溶液和氢氧化铵 - 硫酸铵溶液，其中铂和硬质合金碳化钨用作阳极，并且其中阳极浸入溶液中，以分解粘结碳化钨并形成钨酸铵溶液，其中结晶的铵副州

2. 发明授权

US5009788A Method for removing organic and tungsten from sodium sulfate solution 失效
标题翻译：从硫酸钠溶液中去除有机和钨的方法
公开(公告)号：US5009788A
公开(公告)日：1991-04-23
申请号：US504478
申请日：1990-04-04
申请人： Tai K. Kim , Clarence D. Vanderpool
发明人： Tai K. Kim , Clarence D. Vanderpool
IPC分类号： B01D15/00 , C22B34/36
CPC分类号： C22B34/36 , B01D15/00
摘要： A method is disclosed for removing organic and tungsten from sodium sulfate solutions to render the solutions suitable for ion membrane processing, which comprises contacting the solution wherein the pH of the solution is no greater than about 7, with activated carbon to remove essentially all of the organic and the tungsten therefrom and form a purified sodium sulfate solution.
摘要翻译：公开了一种从硫酸钠溶液中除去有机和钨的方法，以使溶液适用于离子膜处理，其包括将溶液的pH不大于约7的溶液与活性炭接触以除去基本上所有的有机物和钨，形成纯化的硫酸钠溶液。

3. 发明授权

US3947332A Preparation of heteropoly acids of tungsten and molybdenum 失效
标题翻译：钨和钼杂多酸的制备
公开(公告)号：US3947332A
公开(公告)日：1976-03-30
申请号：US477257
申请日：1974-06-07
申请人： Clarence D. Vanderpool , James C. Patton, Jr. , Tai K. Kim , Martin B. MacInnis
发明人： Clarence D. Vanderpool , James C. Patton, Jr. , Tai K. Kim , Martin B. MacInnis
IPC分类号： C01G39/00 , C01G41/00 , C25B1/22 , C25B1/24
CPC分类号： C25B1/22 , C01G39/003 , C01G39/006 , C01G41/00 , C01P2006/40 , C01P2006/80
摘要： Heteropoly acids of tungsten and molybdenum, such as tungstosilicic acid and molybdosilicic acid, are produced by first preparing an aqueous solution of an alkali metal tungstate or molybdate and an alkali metal salt of the hetero atom, and then removing the alkali metal cations from the solution by means of a cation exchange membrane under the influence of an applied electrical potential, whereby the reactive tungstate or molybdate and hetero species anions react to form the desired heteropoly acid.
摘要翻译：通过首先制备碱金属钨酸盐或钼酸盐的水溶液和杂原子的碱金属盐，然后从溶液中除去碱金属阳离子来制备钨和钼如钨硅酸和钼硅酸的杂多酸在施加的电势的影响下通过阳离子交换膜，由此反应性钨酸盐或钼酸盐和杂种阴离子反应形成所需的杂多酸。

4. 发明授权

US4612180A Method of producing crystalline ammonium metatungstate 失效
标题翻译：生产结晶态偏钨酸铵的方法
公开(公告)号：US4612180A
公开(公告)日：1986-09-16
申请号：US704841
申请日：1985-02-25
申请人： Tai K. Kim , Robert P. McClintic , Clarence D. Vanderpool
发明人： Tai K. Kim , Robert P. McClintic , Clarence D. Vanderpool
IPC分类号： C01G41/00
CPC分类号： C01G41/00
摘要： A method is disclosed for producing crystalline ammonium metatungstate from ammonium paratungstate. The method involves heating the ammonium paratungstate with microwave radiation, then heating an aqueous slurry of the heated ammonium paratungstate at from about 80.degree. to about 100.degree. C. at relatively constant volume until the pH of the slurry becomes stabilized at from about 5.8 to about 6.8, adjusting the pH of the slurry to from about 4.2 to about 30, digesting the resulting pH adjusted slurry at from about 80.degree. to about 100.degree. C. for from about 2 to about 6 hours to form a solution of ammonium metatungstate, concentrating the resulting solution, separating insolubles from the solution, and crystallizing ammonium metatungstate from the concentrated solution.
摘要翻译：公开了一种从仲钨酸铵生产结晶态偏钨酸铵的方法。该方法包括用微波辐射加热仲钨酸铵，然后以相对恒定的体积加热约80至约100℃的加热的仲钨酸铵的水浆料，直到浆料的pH稳定在约5.8至约 6.8，将浆料的pH调节至约4.2至约30，将所得pH调节的浆料在约80℃至约100℃下消化约2至约6小时以形成偏钨酸铵溶液，浓缩得到的溶液，从溶液中分离不溶物，并从浓缩溶液中结晶偏钨酸铵。

5. 发明授权

US4966710A Method for removing magnesium and calcium from sodium sulfate solutions 失效
标题翻译：从硫酸钠溶液中去除镁和钙的方法
公开(公告)号：US4966710A
公开(公告)日：1990-10-30
申请号：US504476
申请日：1990-04-04
申请人： Tai K. Kim , Robert P. McClintic
发明人： Tai K. Kim , Robert P. McClintic
IPC分类号： B01D15/04 , B01J45/00 , C01D1/04 , C01D5/16
CPC分类号： B01J45/00 , C01D1/04 , C01D5/16
摘要： A method for removing magnesium and calcium from sodium sulfate solutions to render the solutions suitable for membrane processing, which comprises adjusting the pH of the solutions to about 11 to 13 with sodium hydroxide to form a precipitate containing the bulk of the magnesium and the calcium, removing the precipitate from the resulting partially purified sodium sulfate solution, and contacting the partially purified sodium sulfate solution with a polystyrene divinyl benzene copolymer chelating cation exchange resin having an aminophosphonic functional group and having sodium as the exchangeable cation, to remove essentially all of the magnesium and the calcium from the partially purified sodium sulfate solution.
摘要翻译：一种从硫酸钠溶液中除去镁和钙以使溶液适合于膜处理的方法，其包括用氢氧化钠将溶液的pH调节至约11至13，以形成含有大部分镁和钙的沉淀物，从所得部分纯化的硫酸钠溶液中除去沉淀物，并使部分纯化的硫酸钠溶液与具有氨基膦官能团并具有钠作为可交换阳离子的聚苯乙烯二乙烯基苯共聚物螯合阳离子交换树脂接触，以除去基本上所有的镁和来自部分纯化的硫酸钠溶液的钙。

6. 发明授权

US4369165A Recovery of tungsten values from alkali tungstate solutions by solvent extraction 失效
标题翻译：通过溶剂萃取从碱式钨酸盐溶液中回收钨值
公开(公告)号：US4369165A
公开(公告)日：1983-01-18
申请号：US292379
申请日：1981-08-13
申请人： Tai K. Kim , Martin B. MacInnis , Martin C. Vogt , Robert P. McClintic
发明人： Tai K. Kim , Martin B. MacInnis , Martin C. Vogt , Robert P. McClintic
IPC分类号： C01G41/00 , C22B3/28 , C22B3/40
CPC分类号： C22B3/0095 , C01G41/003 , C22B3/0012 , Y02P10/234
摘要： In a three component extraction system for producing ammonium tungstate from aqueous alkali metal tungstate from aqueous alkali metal tungstate solution, the stripping solution consists essentially of water and from about 5 to about 21 percent ammonium hydroxide at a pH of from about 12 to about 13 wherein the stripping is carried out by dispersing the aqueous ammonia solution in the loaded organic extractant.
摘要翻译：在由碱金属钨酸钠水溶液的碱金属钨酸盐水溶液制备钨酸铵的三组分提取系统中，汽提溶液基本上由水和约5至约21％的氢氧化铵组成，pH约为12至约13，其中通过将氨水溶液分散在负载的有机萃取剂中来进行汽提。

7. 发明授权

US4379126A Process for recovering tungsten values from alkali solutions 失效
标题翻译：从碱溶液中回收钨值的工艺
公开(公告)号：US4379126A
公开(公告)日：1983-04-05
申请号：US292376
申请日：1981-08-13
申请人： Tai K. Kim , Joseph E. Ritsko , Martin B. MacInnis , Martin C. Vogt
发明人： Tai K. Kim , Joseph E. Ritsko , Martin B. MacInnis , Martin C. Vogt
IPC分类号： C01G39/02 , C01G41/00 , C22B3/28
CPC分类号： C22B3/0012 , C01G41/003 , C22B3/24 , Y02P10/234 , Y10S423/14
摘要： In a continuous process for producing ammonium tungstate from aqueous alkali metal tungstate solution according to an extraction process, the loaded organic extractant is cleaned after stripping by contacting with activated carbon for improving phase separation and decreasing the concentration of alkali metal.
摘要翻译：在根据提取方法从碱金属钨酸盐水溶液中生产钨酸铵的连续方法中，通过与活性炭接触来提纯负载的有机萃取剂，以提高相分离和降低碱金属的浓度。

8. 发明授权

US4261959A Process for extracting ferric iron from an aqueous solution 失效
标题翻译：从水溶液中提取三价铁的方法
公开(公告)号：US4261959A
公开(公告)日：1981-04-14
申请号：US105003
申请日：1979-12-18
申请人： Tai K. Kim , Martin B. MacInnis
发明人： Tai K. Kim , Martin B. MacInnis
IPC分类号： C01G49/00 , C22B3/26 , C01G49/10
CPC分类号： C01G49/0009 , C22B3/0021 , Y02P10/234
摘要： Ferric iron is removed from an aqueous chloride solution containing other cations by extracting ferric iron with a liquid organic extractant comprising a ketone having less than about eight carbon atoms for a sufficient period of time to extract ferric iron into the organic liquid extractant. The organic liquid extractant is separated from the aqueous chloride solution containing other cations and the ferric iron is stripped from the organic liquid.
摘要翻译：通过用含有少于约8个碳原子的酮的液体有机萃取剂萃取三价铁足够长的时间将三价铁萃取到有机液体萃取剂中，从含有其它阳离子的氯化水溶液中除去三价铁。将有机液体萃取剂与含有其它阳离子的氯化水溶液分离，并从有机液体中汽提出三价铁。

9. 发明授权

US4751061A Process for recovering scandium from waste material 失效
标题翻译：从废料回收钪的工艺
公开(公告)号：US4751061A
公开(公告)日：1988-06-14
申请号：US44170
申请日：1987-04-30
申请人： Tai K. Kim , Robert P. McClintic
发明人： Tai K. Kim , Robert P. McClintic
IPC分类号： C22B3/00 , C22B59/00
CPC分类号： C22B3/24 , C22B3/42 , Y02P10/234
摘要： A process is disclosed for recovering scandium from impure scandium bearing material. The process involves contacting a solution of scandium which contains impurities, with a solvent impregnated resin consisting essentially of a solid polymeric medium in which is dispersed a liquid alkyl phosphoric acid as a cation extracting agent to extract essentially all of the scandium by the extracting agent without extracting appreciable amounts of impurities, and removing the scandium from the resin.
摘要翻译：公开了用于从不纯的钪承载材料回收钪的方法。该方法包括使含有杂质的钪溶液与基本上由固体聚合物介质组成的溶剂浸渍树脂接触，其中分散有液体烷基磷酸作为阳离子提取剂，通过萃取剂萃取基本上所有的钪，而没有提取可观量的杂质，并从树脂中除去钪。

10. 发明授权

US4612182A Method of producing crystalline ammonium metatungstate 失效
标题翻译：生产结晶态偏钨酸铵的方法
公开(公告)号：US4612182A
公开(公告)日：1986-09-16
申请号：US704843
申请日：1985-02-25
申请人： Tai K. Kim , Martin B. MacInnis , Robert P. McClintic
发明人： Tai K. Kim , Martin B. MacInnis , Robert P. McClintic
IPC分类号： C01G41/00
CPC分类号： C01G41/00
摘要： A method is disclosed for producing crystalline ammonium metatungstate from ammonium paratungstate. The method involves heating the ammonium paratungstate at from about 100.degree. C. to about 250.degree. C. for from about 1 hour to about 8 hours to remove some ammonia and water, digesting a solution of the heated ammonium paratungstate in water at from about 80.degree. C. to about 100.degree. C. for from about 2 hours to about 6 hours at relatively constant volume while maintaining the pH of the slurry at from about 4.2 to about 3.0 by addition of ammonia as necessary to form a solution of ammonium metatungstate in water. The ammonium metatungstate solution is then evaporated to concentrate it. Any insoluble material is separated from the solution. Ammonium metatungstate is then crystallized from the resulting concentrated ammonium metatungstate solution.
摘要翻译：公开了一种从仲钨酸铵生产结晶态偏钨酸铵的方法。该方法包括将约100℃至约250℃的仲钨酸铵加热约1小时至约8小时以除去一些氨和水，在约80℃的水中将加热的仲钨酸铵溶液消化以相对恒定的体积进行约2小时至约6小时，同时通过根据需要加入氨将浆料的pH保持在约4.2至约3.0，以形成偏钨酸铵溶液水。然后将偏钨酸铵溶液蒸发浓缩。将任何不溶物质与溶液分离。然后从所得浓缩的偏钨酸铵溶液中结晶偏钨酸铵。

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