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1. 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。

2. 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。

3. 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。

4. 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。

5. 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。

6. 发明授权

US4381937A 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：US4381937A
公开(公告)日：1983-05-03
申请号：US304400
申请日：1981-09-21
申请人： Richard G. Gingerich , Clarence D. Vanderpool , Richard A. Scheithauer , Martin B. MacInnis
发明人： Richard G. Gingerich , Clarence D. Vanderpool , Richard A. Scheithauer , Martin B. MacInnis
IPC分类号： B22F9/24 , C01G51/12 , B22F9/00
CPC分类号： C22B23/0423 , C01G51/12 , C22B23/0461 , Y02P10/212
摘要： In a process for producing fine cobalt metal powder from scrap material containing brazing compositions, the scrap is digested with hydrochloric acid to form a cobalt chloride solution which the silver is removed by precipitation with a suitable alkali metal halide at a pH of about 7 to result in a cobalt amine chloride solution which is further processed to fine cobalt powder.
摘要翻译：在由含有钎焊组合物的废料制造精细钴金属粉末的方法中，废料用盐酸消化以形成氯化钴溶液，通过在约7的pH下用合适的碱金属卤化物沉淀除去银，得到在钴胺氯化物溶液中，其进一步加工成细小的钴粉末。

7. 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。

8. 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。

9. 发明授权

US4816069A Method for converting cobalt to cobalt metal powder 失效
标题翻译：将钴转化为钴金属粉末的方法
公开(公告)号：US4816069A
公开(公告)日：1989-03-28
申请号：US197560
申请日：1988-05-23
申请人： Alan D. Douglas , Martin B. MacInnis , Clarence D. Vanderpool
发明人： Alan D. Douglas , Martin B. MacInnis , Clarence D. Vanderpool
IPC分类号： B22F9/02 , B22F9/04 , C22C1/04 , B02C19/12
CPC分类号： C22C1/0433 , B22F9/02 , B22F9/04
摘要： A method for converting cobalt to cobalt powder is disclosed which comprises heating a starting mixture of cobalt and zinc in a non-reacting atomosphere at a first temperature of below the boiling point of zinc up to about 900.degree. C. in a non-reacting atmosphere for a length of time sufficient to cause the alloying of a portion of the zinc and cobalt, with the weight ratio of zinc to cobalt being less than about 10. The temperature of the resulting partially alloyed mixture is slowly raised to a second temperature of from about 900.degree. C. to about 960.degree. and is maintained for a time sufficient only to form a reaction product in which essentially all of the cobalt is alloyed with zinc and to keep the evaporation of zinc to a minimum. The reaction product is then heated at a pressure below atmospheric pressure at a third temperature of no greater than about 950.degree. C. for a time sufficient to evaporate essentially all of the zinc and produce a cobalt ingot which is pulverizable when cooled to room temperature.
摘要翻译：公开了一种将钴转化为钴粉末的方法，该方法包括在非反应性气氛中，在低于沸点至少约900℃的第一温度下，在非反应性大气中加热钴和锌的起始混合物一段时间足以引起一部分锌和钴的合金化，锌与钴的重量比小于约10.所得到的部分合金化混合物的温度缓慢升至第二温度约900℃至约960℃，并保持足以仅形成反应产物的时间，其中基本上所有的钴与锌合金化并使锌的蒸发保持最小。然后将反应产物在不大于约950℃的第三温度下在低于大气压的压力下加热足以蒸发基本上所有锌的时间，并产生当冷却至室温时可粉化的钴锭。

10. 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。

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