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1. 发明授权

US4448755A Method for removal of tin from ammonium tungstates 失效
标题翻译：从钨酸铵中除去锡的方法
公开(公告)号：US4448755A
公开(公告)日：1984-05-15
申请号：US557021
申请日：1983-12-01
申请人： Richard A. Scheithauer , Michael J. Miller , Martin B. MacInnis , James N. Christini , Martin C. Vogt
发明人： Richard A. Scheithauer , Michael J. Miller , Martin B. MacInnis , James N. Christini , Martin C. Vogt
IPC分类号： C01G19/00 , C01G41/00
CPC分类号： C01G19/00 , C01G41/00
摘要： In a process for producing pure ammonium paratungstate from ammonium tungstate solutions containing tin, sulfide is added to the ammonium tungstate solution in an amount sufficient to form a soluble complex of the sulfide with the tin. The solution is then evaporated to a volume at which essentially all of the tungsten is in the form of insoluble ammonium paratungstate and essentially all of the tin is in the mother liquor in the form of a soluble complex along with other impurities. The solid ammonium paratungstate is then separated from the mother liquor by filtration.
摘要翻译：在从含有锡的钨酸铵溶液中生产纯仲钨酸铵的方法中，将硫化铵以足以形成硫化物与锡的可溶性络合物的量加入到钨酸铵溶液中。然后将溶液蒸发至其中基本上所有的钨都是不对称的仲钨酸铵形式的体积，并且基本上所有的锡在母液中是可溶性络合物的形式以及其它杂质。然后将过硫酸固体铵与母液分离。

2. 发明授权

US4454098A Process for reclaiming tungsten from a hazardous waste 失效
标题翻译：从危险废物回收钨的工艺
公开(公告)号：US4454098A
公开(公告)日：1984-06-12
申请号：US556765
申请日：1983-12-01
申请人： Richard A. Scheithauer , Clarence D. Vanderpool , Michael J. Miller , Martin B. MacInnis
发明人： Richard A. Scheithauer , Clarence D. Vanderpool , Michael J. Miller , Martin B. MacInnis
IPC分类号： C01G28/02 , C01G41/00 , C22B7/00 , C22B34/36
CPC分类号： C22B34/36 , C01G28/023 , C01G41/00 , C22B7/008 , Y02P10/234
摘要： A process is disclosed wherein tungsten is recovered from hazardous waste material containing said tungsten, arsenic, and other impurities which can consist of magnesium, phosphorus, and silicon and the resulting waste is treated to render it nonhazardous according to EPA standards for arsenic. Said process involves digesting said hazardous waste material in an aqueous solution of an alkali metal hydroxide, adjusting the pH of the resulting solution to about 11.0 to about 13.0 with NaOH to precipitate essentially all of the magnesium and silicon species, filtering the digestion mix to remove the solids from said resulting solution which contains about 80 to about 100% of said tungsten and essentially none of said magnesium and said silicon, slurrying the hazardous solids in hot water, and adding to the slurry a ferric salt solution to precipitate ferric hydroxide, filtering this mixture to give a solid which passes the EPA standard test for solids with respect to arsenic.
摘要翻译：公开了一种方法，其中钨从含有所述钨，砷和其它可由镁，磷和硅组成的杂质的有害废物中回收，并且根据EPA的砷标准对所得的废物进行处理以使其非危险。所述方法包括在碱金属氢氧化物的水溶液中消化所述有害废物，用NaOH将所得溶液的pH调节至约11.0至约13.0，以沉淀基本上所有的镁和硅物质，过滤消化混合物以除去来自所述所得溶液的固体含有约80至约100％的所述钨，基本上不含所述镁和所述硅，将有害固体在热水中制浆，并向浆料中加入铁盐溶液以沉淀氢氧化铁，过滤该混合物得到固体，其通过关于砷的固体的EPA标准测试。

3. 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。

4. 发明授权

US4624844A Process for producing ammonium paratungstate 失效
标题翻译：生产仲钨酸铵的方法
公开(公告)号：US4624844A
公开(公告)日：1986-11-25
申请号：US697662
申请日：1985-02-04
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
CPC分类号： C01G41/00
摘要： A process is disclosed for producing ammonium paratungstate which involves adding hexamethylenetetramine to a first solution of ammonium tungstate, adjusting the pH to about 2 with an acid to form a precipitate which contains the major portion of the tungsten and the hexamethylenetetramine and separating the precipitate from the resulting mother liquor. The tungsten hexamethylenetetramine precipitate is then dissolved in aqueous ammonia to form a second ammonium tungstate solution which is then heated at from about 90.degree. C. to about 100.degree. C. to form a precipitate essentially all of which is ammonium paratungstate and a mother liquor which contains essentially all of the hexamethylenetetramine. The ammonium paratungstate precipitate is then separated from the mother liquor.
摘要翻译：公开了一种用于生产仲钨酸铵的方法，其涉及将六亚甲基四胺加入到钨酸铵的第一溶液中，用酸将pH调节至约2以形成含有主要部分的钨和六亚甲基四胺的沉淀物，并将沉淀物与产生母液。然后将六亚甲基四胺钨沉淀物溶解在氨水中形成第二钨酸铵溶液，然后将其加热至约90℃至约100℃，以形成基本上全部为仲钨酸铵的母液和母液，含有基本上所有的六亚甲基四胺。然后将仲钨酸铵沉淀物与母液分离。

5. 发明授权

US4608084A Recovery of cobalt and chromium 失效
标题翻译：回收钴和铬
公开(公告)号：US4608084A
公开(公告)日：1986-08-26
申请号：US718257
申请日：1985-04-01
申请人： Richard A. Scheithauer , Michael J. Miller , Clarence D. Vanderpool , Martin B. MacInnis
发明人： Richard A. Scheithauer , Michael J. Miller , Clarence D. Vanderpool , Martin B. MacInnis
IPC分类号： C22B23/00 , C22B3/32 , C22B7/00 , C22B34/32 , C22B23/04
CPC分类号： C22B23/0484 , C22B23/0423 , C22B3/0025 , C22B34/32 , C22B7/007 , Y02P10/234
摘要： A process is disclosed for recovering cobalt and chromium from a cobalt and chromium containing alloy. The process involves first digesting the alloy in concentrated hydrochloric acid at a sufficient temperature for a sufficient time to form a first solution containing the major portion of the cobalt, chromium, and any iron and nickel present in the alloy and a first solid and separating the first solution from the first solid. Oxalic acid is then added to the first solution in an amount sufficient to subsequently precipitate the major portion of the cobalt and any iron and nickel contained in the first solution followed by adjustment of the ph to from about 1 to about 2 with a base and maintaining the temperature below about 20.degree. for a sufficient time to form a second solid containing the major portion of the cobalt and the major portion of any iron and nickel which is present in the first solution and a second solution containing the major portion of the chromium which is present in the first solution and separation of the second solid from the second solution. The second solid is then washed with sufficient water to remove any water soluble impurities and separated from the resulting wash water. The resulting washed second solid is then contacted with a calcium chloride solution of sufficient calcium chloride concentration, at a sufficient temperature, for a sufficient time to form a third solution containing the major portion of the cobalt which was present in the second solid, and a third solid. The third solution is then separated from the third solid.
摘要翻译：公开了从含钴和铬的合金中回收钴和铬的方法。该方法包括首先在足够的温度下将浓缩的合金中的合金消化足够的时间以形成含有合金中存在的钴，铬和任何铁和镍的主要部分的第一溶液和第一固体，从第一个固体的第一个解决方案。然后将草酸以足以随后沉淀出主要部分的钴和第一溶液中所含的任何铁和镍的量，然后用碱将ph调节至约1至约2，并保持温度低于约20°足够的时间以形成第二固体，其含有钴的主要部分和存在于第一溶液中的任何铁和镍的主要部分和含有主要部分铬的第二溶液，存在于第一溶液中并且将第二固体与第二溶液分离。然后用足够的水洗涤第二固体以除去任何水溶性杂质并从得到的洗涤水中分离。然后将所得洗涤后的第二固体在足够的温度下与足够氯化钙浓度的氯化钙溶液接触足够的时间以形成含有存在于第二固体中的钴的主要部分的第三溶液，第三个固体。然后将第三溶液与第三固体分离。

6. 发明授权

US5417945A Process for recovering tungsten as an ammoniacal tungstate compound in which ammoniacal tungstate liquors are reclaimed 失效
标题翻译：用于回收钨作为氨基钨酸盐化合物的方法，其中回收了氨基钨酸盐液体
公开(公告)号：US5417945A
公开(公告)日：1995-05-23
申请号：US795310
申请日：1991-11-14
申请人： Richard G. W. Gingerich , James N. Christini , Martin C. Vogt , Clarence D. Vanderpool , Michael J. Miller
发明人： Richard G. W. Gingerich , James N. Christini , Martin C. Vogt , Clarence D. Vanderpool , Michael J. Miller
IPC分类号： C01G41/00
CPC分类号： C01G41/003 , C01G41/00
摘要： A process for recovering tungsten as an ammoniacal tungstate which comprises reacting a tungsten containing material with sodium hydroxide to produce sodium tungstate and forming a first aqueous sodium tungstate solution therefrom, crystallizing sodium tungstate from the first aqueous sodium tungstate solution, dissolving the resulting sodium tungstate crystals in an aqueous medium to form a second aqueous sodium tungstate solution, extracting tungsten from the second aqueous sodium tungstate solution with an organic extracting agent wherein the extracting agent containing tungsten is capable of being stripped of the extracted tungsten by ammonia, and thereafter stripping the extracted tungsten from the organic extracting agent with ammonia to form an ammoniacal tungstate solution, crystallizing a portion of the tungsten contained in the ammoniacal tungstate solution to form a two phase system wherein an ammoniacal tungstate compound comprises the first phase and wherein the resulting mother liquor containing the balance of the contained tungsten comprises the second phase, and repeating the process using the mother liquor as at least a portion of the aqueous medium to dissolve the sodium tungstate crystals.
摘要翻译：一种用于回收钨作为钨酸钨的方法，其包括使含钨材料与氢氧化钠反应以产生钨酸钠并从其中形成第一含水钨酸钠溶液，从第一钨酸钠水溶液中使钨酸钠结晶，将所得的钨酸钠晶体在水性介质中形成第二钨酸钠水溶液，用有机萃取剂从第二钨酸钠水溶液中提取钨，其中含有钨的萃取剂能够用氨除去提取的钨，然后将提取的钨从有机萃取剂中与氨反应形成一种氨基钨酸盐溶液，使一部分钨酸铵溶液中所含的钨结晶形成两相体系，其中氨基钨酸盐化合物包含第一相，其中所得的含有所含钨的余量的母液包括第二相，并且重复使用母液作为至少一部分水性介质以溶解钨酸钠晶体的方法。

7. 发明授权

US4552729A Method for removing tin from sodium tungstate solution 失效
标题翻译：从钨酸钠溶液中除去锡的方法
公开(公告)号：US4552729A
公开(公告)日：1985-11-12
申请号：US679419
申请日：1984-12-07
申请人： Michael J. Miller , Martin C. Vogt , Richard A. Scheithauer
发明人： Michael J. Miller , Martin C. Vogt , Richard A. Scheithauer
IPC分类号： C01G19/02 , C01G41/00
CPC分类号： C01G41/00 , C01G19/02
摘要： A method is disclosed for removing tin from aqueous sodium tungstate solutions. The method involves adding ammonia to the sodium tungstate solution, adjusting the pH to above about 9.5 with an acid, adding magnesium chloride to form insoluble material containing the major portion of the tin, silicon, arsenic and phosphorus and a resulting sodium tungstate solution containing the major portion of the tungsten, and separating the insoluble material from the resulting solution.
摘要翻译：公开了从钨酸钠溶液中除去锡的方法。该方法包括向钨酸钠溶液中加入氨，用酸将pH调节至约9.5以上，加入氯化镁以形成含有主要部分的锡，硅，砷和磷的不溶物质，得到含有钨的主要部分，并从所得溶液中分离不溶物质。

8. 发明授权

US5185030A Method for producing extrafine pure metal powder 失效
标题翻译：纯金属粉末生产方法
公开(公告)号：US5185030A
公开(公告)日：1993-02-09
申请号：US811274
申请日：1991-12-20
申请人： Michael J. Miller , James N. Christini , Eric F. Husted
发明人： Michael J. Miller , James N. Christini , Eric F. Husted
IPC分类号： B22F9/22
CPC分类号： B22F9/22
摘要： A method of making extrafine pure elemental metal powder from a highly malleable pure elemental metal powder. The pure elemental metal powder is oxidized, ground to a desired average particle size, reduced in a reducing atmosphere to a pure elemental metal powder, and then sieved to obtain the desired fraction of extrafine pure elemental metal powder.
摘要翻译：从高度可塑的纯元素金属粉末制造超细纯金属粉末的方法。将纯的元素金属粉末氧化，研磨成所需的平均粒径，在还原气氛中还原成纯的元素金属粉末，然后过筛以获得所需的特殊纯金属元素粉末。

9. 发明授权

US5734960A Process for producing KS molybdenum 失效
标题翻译：生产KS钼的工艺
公开(公告)号：US5734960A
公开(公告)日：1998-03-31
申请号：US297476
申请日：1994-08-29
申请人： Thomas J. Patrician , Michael J. Miller , James N. Christini , Michael J. Cheresnowsky , Vernon L. Carr, Jr.
发明人： Thomas J. Patrician , Michael J. Miller , James N. Christini , Michael J. Cheresnowsky , Vernon L. Carr, Jr.
IPC分类号： C22C1/04 , B22F1/00 , B22F3/12 , B22F9/22
CPC分类号： C22C1/045
摘要： A process for producing potassium and silicon doped molybdenum (KS molybdenum). The process involves mixing an aqueous ammonium molybdate solution and a dilute aqueous potassium silicate solution. The molybdate solution has a pH and a specific gravity sufficient to promote formation of diammonium molybdate crystals in the mixture. Preferably, the pH is about 8.8-11.0 and the specific gravity is about 1.20-1.32. The amount of potassium silicate and the amount of potassium silicate solution are selected to provide predetermined amounts of potassium and silicon in the mixture, preferably about 800-1300 ppm potassium and about 500-1100 ppm silicon, both amounts based on the amount of molybdenum. The mixture is heated to aid dissolution of the potassium silicate and ammonium molybdate in said mixture and to produce a homogeneous solution of ammonium molybdate, potassium, and silicon. The ammonium dimolybdate doped with potassium and silicon is then crystallized out of solution and calcined, for example in an atmosphere of dissociated ammonia, to produce molybdenum dioxide doped with potassium and silicon. The doped molybdenum dioxide is reduced, for example in a flowing hydrogen atmosphere, to produce a doped molybdenum powder, which then may be pressed and sintered to full density.
摘要翻译：一种生产钾和硅掺杂钼（KS钼）的方法。该方法包括混合钼酸铵水溶液和稀的硅酸钾水溶液。钼酸盐溶液具有足以促进混合物中钼酸铵晶体形成的pH和比重。优选地，pH为约8.8-11.0，比重为约1.20-1.32。选择硅酸钾的量和硅酸钾溶液的量以在混合物中提供预定量的钾和硅，优选约800-1300ppm钾和约500-1100ppm硅，两者都基于钼的量。将混合物加热以帮助硅酸钾和钼酸铵在所述混合物中的溶解，并产生钼酸铵，钾和硅的均匀溶液。然后将掺杂有钾和硅的二钼酸铵从溶液中结晶出来并煅烧，例如在解离的氨气氛中，生成掺有钾和硅的二氧化钼。掺杂的二氧化钼例如在流动的氢气氛中被还原，以产生掺杂的钼粉末，然后可将其压制并烧结至全密度。

10. 发明授权

US4690710A Process for producing cobalt metal powder 失效
标题翻译：钴金属粉末生产工艺
公开(公告)号：US4690710A
公开(公告)日：1987-09-01
申请号：US793079
申请日：1985-10-31
申请人： Richard A. Scheithauer , Clarence D. Vanderpool , Michael J. Miller , Richard G. W. Gingerich
发明人： Richard A. Scheithauer , Clarence D. Vanderpool , Michael J. Miller , Richard G. W. Gingerich
IPC分类号： B22F9/22 , B22F9/24 , C01G51/00 , C22B23/00 , C22C1/04
CPC分类号： B22F9/22 , C22B23/0423 , C22B23/0461
摘要： A process is disclosed for producing pure cobalt metal powder. The process involves contacting a cobaltous salt with a sufficient amount of an alkaline earth halide in an aqueous solution at a sufficient temperature for a sufficient time to form a solution which is essentially cobaltous halide and a solid which consists essentially of a salt of the alkaline earth and the anion of the cobaltous salt. The cobaltous halide solution is removed from the solid and the ions in the solution are complexed with ammonia in the presence of a catalyst to form a cobaltic hexammine ion. The resulting solution is treated with an acid in the presence of halide ions to form a cobaltic hexammine halide precipitate which is removed from the resulting mother liquor and dissolved in an aqueous solution to form a relatively pure solution which is treated with a sufficient amount of a metallic hydroxide to form a cobalt containing precipitate which is reduced to cobalt metal.
摘要翻译：公开了用于生产纯钴金属粉末的方法。该方法包括将钴盐与足量的碱土卤化物在水溶液中在足够的温度下接触足够的时间以形成基本上为卤化钴和基本上由碱土金属盐组成的固体的溶液和钴耳盐的阴离子。将卤化钴溶液从固体中除去，并且在催化剂存在下，溶液中的离子与氨络合以形成钴六胺离子。所得溶液在卤离子存在下用酸处理以形成钴六卤化物沉淀物，其从所得母液中除去并溶解在水溶液中以形成相对纯的溶液，该溶液用足量的金属氢氧化物以形成还原成钴金属的含钴沉淀物。

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