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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

US4741886A Process for recovering tungsten from tungsten bearing material containing arsenic 失效
标题翻译：从含砷的钨轴承材料中回收钨的工艺
公开(公告)号：US4741886A
公开(公告)日：1988-05-03
申请号：US922651
申请日：1986-10-24
申请人： Clarence D. Vanderpool , Richard A. Scheithauer , Martin B. MacInnis
发明人： Clarence D. Vanderpool , Richard A. Scheithauer , Martin B. MacInnis
IPC分类号： C01G41/00
CPC分类号： C01G41/00
摘要： A process is disclosed for recovering tungsten from tungsten bearing material containing arsenic. The process involves adjusting a water slurry of the material to a pH of less than about 4 with an acid to solubilize the major portion of the tungsten, adding an insoluble ferric compound to the slurry to form a two phase system in which the solid phase contains the major portion of the arsenic and of any phosphorus which may be present, and a solution phase containing the major portion of the tungsten. After separation of the solid from the solution, the solution is adjusted to a pH of less than about 2 with an acid and a suffficient amount of hexamethylenetetramine is added to the solution to precipitate the major portion of the tungsten, followed by separating the precipitate from the resulting liquor. The solid phase containing the arsenic and phosphorus, if any, can be contacted with water and a soluble ferric salt to produce a treated solid which passes the EP toxicity test.
摘要翻译：公开了从含有砷的含钨材料中回收钨的方法。该方法包括用酸调节材料的水浆至小于约4的pH，以溶解钨的主要部分，向浆料中加入不溶性三价铁化合物以形成其中固相含有砷的主要部分和可能存在的任何磷，以及含有主要部分钨的溶液相。在从溶液中分离固体后，用酸将溶液调节至小于约2的pH，并向溶液中加入少量的六亚甲基四胺以沉淀出主要部分的钨，然后将沉淀物从所得酒。含有砷和磷的固相（如果有的话）可以与水和可溶性铁盐接触，以产生通过EP毒性试验的处理固体。

3. 发明授权

US4469505A Method for producing cobalt metal powder 失效
标题翻译：钴金属粉末的制造方法
公开(公告)号：US4469505A
公开(公告)日：1984-09-04
申请号：US208369
申请日：1980-11-19
申请人： Michael J. Cheresnowsky , Clarence D. Vanderpool
发明人： Michael J. Cheresnowsky , Clarence D. Vanderpool
IPC分类号： B22F9/22 , G11B5/706 , B22F9/00
CPC分类号： G11B5/70621 , B22F9/22
摘要： In a process for producing fine cobalt metal powder by reduction of a cobalt hydroxide precipitate, the cobalt hydroxide precipitate is heat treated prior to reduction at a selected temperature for reducing the Fisher Sub Sieve Size of the finally produced cobalt metal powder.
摘要翻译：在通过还原氢氧化钴沉淀物制造细钴金属粉末的方法中，在选择温度下还原之前，将氢氧化钴沉淀物进行热处理，以降低最终生产的钴金属粉末的Fisher Sub Sieve Size。

4. 发明授权

US4432950A Recovery of refractory metal values from scrap cemented carbide 失效
$Recovery of refractory metal values from scrap cemented carbide$
标题翻译：从废旧硬质合金回收难熔金属值
公开(公告)号：US4432950A
公开(公告)日：1984-02-21
申请号：US419094
申请日：1982-09-16
申请人： Clarence D. Vanderpool , Richard A. Scheithauer , Richard G. Warmington
发明人： Clarence D. Vanderpool , Richard A. Scheithauer , Richard G. Warmington
IPC分类号： C22B7/00 , C22B34/00 , C22B34/36 , C01G41/00
CPC分类号： C22B34/00 , C22B34/36 , C22B7/007 , Y02P10/234
摘要： In a process for recovering refractory metal values from a refractory metal carbide cemented with a metal binder. The coated cemented carbide is treated with sulfuric acid to deteriorate the coating.
摘要翻译：在用金属粘合剂粘结的难熔金属碳化物中回收难熔金属值的方法。涂覆的硬质合金用硫酸处理以使涂层劣化。

5. 发明授权

US4283257A Process for preparing ammonium metatungstate 失效
标题翻译：制备偏钨酸铵的方法
公开(公告)号：US4283257A
公开(公告)日：1981-08-11
申请号：US157571
申请日：1980-06-09
申请人： Clarence D. Vanderpool , Martin B. MacInnis
发明人： Clarence D. Vanderpool , Martin B. MacInnis
IPC分类号： C25B1/00
CPC分类号： C25B1/00
摘要： In a process for producing ammonium metatungstate from ammonium paratungstate, ammonium paratungstate is introduced in the anode chamber of an electrolytic cell which is separated from the cathode chamber by an inert liquid permeable media, when a direct electric current is passed through the cell, ammonium ions migrate to the cathode compartment resulting in an increased concentration of metatungstate in the anode chamber.
摘要翻译：在仲钨酸铵生产偏钨酸铵的方法中，仲钨酸铵被引入电解池的阳极室中，当电流通过电池时，铵离子与惰性液体渗透介质从阴极室分离出来迁移到阴极室，导致阳极室中偏钨酸盐的浓度增加。

6. 发明授权

US5932184A Method for recovery of tungsten from spent catalysts 失效
标题翻译：从废催化剂中回收钨的方法
公开(公告)号：US5932184A
公开(公告)日：1999-08-03
申请号：US271569
申请日：1992-05-26
申请人： Michael J. Miller , Clarence D. Vanderpool
发明人： Michael J. Miller , Clarence D. Vanderpool
IPC分类号： B01J38/00 , C01G41/00 , C22B7/00 , C22B34/36
CPC分类号： C01G41/00 , C22B34/365 , C22B7/009 , Y02P10/214 , Y02P10/23 , Y02P10/234
摘要： A method for recovering tungsten from a tungsten containing spent catalyst comprises digesting the catalyst in aqueous sodium hydroxide solution wherein the mole ratio of the sodium hydroxide to the tungsten contained in the spent catalyst is from about 2.6 to about 4.2 and wherein the amount of water is sufficient to dissolve the subsequently produced sodium tungstate, at a temperature of at least about 90.degree. C. for a length of time of at least about 1 hour to convert greater than about 77% by weight of the tungsten contained in the spent catalyst to sodium tungstate and form a sodium tungstate solution thereof and a residue containing the balance of the starting tungsten, and separating the sodium tungstate solution from the residue. Essentially all of the tungsten is recovered as sodium tungstate by first grinding the catalyst prior to the digestion and by using a mole ratio of sodium hydroxide to tungsten of about 3.8 to 4.2.
摘要翻译：从含钨废催化剂中回收钨的方法包括在氢氧化钠水溶液中消化催化剂，其中氢氧化钠与废催化剂中所含的钨的摩尔比为约2.6至约4.2，其中水的量为足以在随后产生的钨酸钠溶解在至少约90℃的温度下至少约1小时的时间，以将废催化剂中所含的钨的大于约77重量％转化为钠形成钨酸钠溶液和含余量起始钨的残余物，并从残余物中分离出钨酸钠溶液。通过在消化之前首先研磨催化剂和通过使用约3.8至4.2的氢氧化钠与钨的摩尔比，基本上所有的钨作为钨酸钠回收。

7. 发明授权

US4808384A Recovery of tungsten, scandium, iron, and manganese from tungsten bearing material 失效
标题翻译：从钨轴承材料回收钨，钪，铁和锰
公开(公告)号：US4808384A
公开(公告)日：1989-02-28
申请号：US145634
申请日：1987-12-21
申请人： Clarence D. Vanderpool , Judith A. Ladd , Martin B. MacInnis , Mary A. Fedorchak
发明人： Clarence D. Vanderpool , Judith A. Ladd , Martin B. MacInnis , Mary A. Fedorchak
IPC分类号： C01F17/00 , C22B3/08 , C22B3/28 , C22B3/38 , C22B34/36 , C22B47/00 , C22B59/00 , C01G41/00
CPC分类号： C22B34/36 , C01F17/0006 , C22B3/0012 , C22B3/0068 , C22B3/08 , C22B47/00 , C22B59/00 , Y02P10/234
摘要： A process is disclosed for recovering tungsten, iron, and manganese from tungsten bearing material. The process involves digesting the material in a sufficient amount of sulfuric acid at a temperature of at least about 80.degree. C. for a sufficient time in the presence of coal as a reducing agent to form a digestion solution containing the major portion of the scandium, iron, and manganese and a digestion residue containing the major portion of the tungsten, followed by separating the solution from the residue. The major portion of the scandium can be extracted from the digestion solution with an organic solution consisting essentially of a mixture of tertiary alkyl primary amines which are present in an amount sufficient to extract the major portion of the scandium, and the balance an essentially aromatic solvent. The scandium is stripped from the organic with hydrochloric acid which is then separated from the stripped organic. The extraction can be accomplished by an organic solution consisting essentially of an extracting agent which is a dialkyl phosphoric acid and an essentially aromatic solvent. In this latter case, the stripping agent for the scandium is an aqueous solution of ammonium carbonate.
摘要翻译：公开了从含钨材料中回收钨，铁和锰的方法。该方法包括在煤作为还原剂存在下，在至少约80℃的温度下将足量硫酸材料消化足够的时间以形成含有主要部分钪的消解溶液，铁和锰以及含有主要部分钨的消化残渣，然后从残余物中分离溶液。钪的主要部分可以从消解溶液中提取，其中有机溶液基本上由叔烷基伯胺的混合物组成，叔烷基伯胺以足以提取主要部分钪的量存在，余量为基本上为芳族溶剂。用盐酸从有机物中除去钪，然后与汽提的有机物分离。提取可以通过主要由作为二烷基磷酸和基本上芳香族溶剂的萃取剂组成的有机溶液来完成。在后一种情况下，用于钪的汽提剂是碳酸铵的水溶液。

8. 发明授权

US4626425A Recovery of tungsten from ammoniacal solutions 失效
标题翻译：从氨溶液中回收钨
公开(公告)号：US4626425A
公开(公告)日：1986-12-02
申请号：US704840
申请日：1985-02-25
申请人： Richard A. Scheithauer , Clarence D. Vanderpool , Martin B. MacInnis , Michael J. Miller
发明人： Richard A. Scheithauer , Clarence D. Vanderpool , Martin B. MacInnis , Michael J. Miller
IPC分类号： C01G41/00 , C22B3/28 , C22B34/36
CPC分类号： C22B3/0012 , C01G41/003 , C22B34/36 , Y02P10/234
摘要： A method is disclosed for recovering tungsten from a relatively dilute ammoniacal tungsten solution. The method involves adding hexamethylenetetramine to the tungsten solution in an amount sufficient to form a hexamethylenetetramine complex then adjusting the pH to from about 1.0 to about 2.0 with a mineral acid to form a precipitate of the complex containing at least about 99% of the tungsten, and separating the precipitate from the resulting mother liquor.
摘要翻译：公开了从相对稀释的氨质钨溶液中回收钨的方法。该方法包括以足以形成六亚甲基四胺复合物的量向钨溶液中加入六亚甲基四胺，然后用无机酸将pH调节至约1.0至约2.0，以形成含有至少约99％的钨的络合物的沉淀物，并从所得母液中分离出沉淀物。

9. 发明授权

US4612039A Production of pure cobalt metal powder 失效
标题翻译：生产纯钴金属粉末
公开(公告)号：US4612039A
公开(公告)日：1986-09-16
申请号：US793420
申请日：1985-10-31
申请人： Richard A. Scheithauer , Clarence D. Vanderpool , Michael J. Miller
发明人： Richard A. Scheithauer , Clarence D. Vanderpool , Michael J. Miller
IPC分类号： B22F9/22 , C01G51/04 , C01G51/12 , C22B15/00
CPC分类号： B22F9/22 , C01G51/04 , C01G51/12 , C01P2006/80
摘要： A method is disclosed for producing pure cobalt metal powder. The method involves reducing a cobalt containing source material to produce an intermediate cobalt metal, contacting this intermediate with an ammoniacal ammonium halide solution and a catalyst with oxidation to form a solution of hexamminecobalt(III) ions, removing insoluble material, and adding a sufficient amount of a halide salt to the solution to precipitate hexamminecobalt(III) halide which is separated from the mother liquor. The hexamminecobalt(III) halide precipitate is dissolved in water and the pH is adjusted to greater than about 10 with a base, while the solution is heated at a sufficient temperature for a sufficient time to form an insoluble cobalt oxide containing material which is separated from its mother liquor and reduced to pure cobalt metal powder.
摘要翻译：公开了一种用于生产纯钴金属粉末的方法。该方法包括还原含钴原料以产生中间体钴金属，使该中间体与氨基卤化铵溶液和催化剂氧化形成六氨基钴（III）离子溶液，除去不溶物质，并加入足量的的卤化物盐溶解以沉淀与母液分离的六氰基钴（III）卤化物。将六氰酸钴（III）沉淀物溶于水中，用碱将pH调节至大于约10℃，同时将溶液在足够的温度下加热足够的时间以形成不溶性的含氧化钴的材料，其母液还原成纯钴金属粉末。

10. 发明授权

US4605538A Production of pure molybdenum 失效
标题翻译：生产纯钼
公开(公告)号：US4605538A
公开(公告)日：1986-08-12
申请号：US768387
申请日：1985-08-22
申请人： Clarence D. Vanderpool
发明人： Clarence D. Vanderpool
IPC分类号： C01G39/00 , C07F11/00
CPC分类号： C07F11/005 , C01G39/00
摘要： A process is disclosed for producing pure molybdenum which involves contacting a molybdate solution with a true liquid alkaloid in an amount sufficient to form an alkaloid-molybdenum compound with essentially all of the molybdenum. The resulting alkaloid-treated solution is adjusted to a pH of from about 2 to 4 to form a precipitate consisting essentially of the compound and a mother liquor. The precipitate is then separated from the mother liquor and dissolved in ammonium hydroxide to form a two phase system consisting essentially of an alkaloid phase and a molybdenum phase followed by separation of the two phases. A pure ammonium molybdate compound is then crystallized from the molybdenum phase.
摘要翻译：公开了一种用于生产纯钼的方法，其涉及将钼酸盐溶液与足以形成基本上所有钼的生物碱 - 钼化合物的量的真实液体生物碱接触。将所得生物碱处理的溶液调节至约2至4的pH，以形成基本上由化合物和母液组成的沉淀物。然后将沉淀物与母液分离并溶解在氢氧化铵中以形成基本上由生物碱相和钼相组成的两相体系，随后分离两相。然后将钼酸铵化合物从钼相中结晶出来。

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