公开(公告)号：US11380453B2

公开(公告)日：2022-07-05

申请号：US16325245

申请日：2017-08-14

Applicant: Curium US LLC

Inventor： Arend Booij

IPC: C01G1/00 ,  G21G1/00 ,  B01D15/00 ,  C22B34/30 ,  C22B3/24 ,  B01D15/38

Abstract: The present disclosure provides a method of separating Mo-99 from W-187 from a solution comprising Mo-99 and W-187. The method comprises contacting a tridentate diglycolanude ligand with a solution comprising Mo-99 and W-187 and eluting W-187 from the tridentate diglycolanude ligand to thereby an eluate comprising W-187.

公开(公告)号：US09272923B2

公开(公告)日：2016-03-01

申请号：US13576437

申请日：2011-02-01

Applicant: David W. Lipke ,  Kenneth H. Sandhage

Inventor： David W. Lipke ,  Kenneth H. Sandhage

IPC: C01B11/00 ,  C01B31/00 ,  C01B35/00 ,  C01G37/00 ,  C01G39/00 ,  C01G41/00 ,  C22B34/30 ,  C01G31/00 ,  C01G33/00 ,  C01G35/00 ,  C22B34/20

CPC classification number: C01G35/00 ,  C01G33/00 ,  C01G39/00 ,  C01G41/00 ,  C01P2002/72 ,  C01P2004/03

Abstract: Methods of converting shaped templates into shaped metal-containing components, allowing for the production of freestanding, porous metal-containing replicas whose shapes and microstructures are derived from a shaped template, and partially or fully converting the shaped templates to produce metal-containing coatings on an underlying shaped template are described herein. Such coatings and replicas can be applied in a variety of fields including, but not limited to, catalysis, energy storage and conversion, and various structural or refractory materials and structural or refractory composite materials.

Abstract translation: 将成形模板转化成含金属成分的方法，允许生产其形状和微观结构衍生自成形模板的独立的多孔金属复制品，以及部分或完全转化成形模板以产生含金属的涂层 本文描述了底层的成形模板。 这样的涂层和复制品可以应用于各种领域，包括但不限于催化，储能和转化，以及各种结构或耐火材料以及结构或难熔复合材料。

公开(公告)号：US20120175307A1

公开(公告)日：2012-07-12

申请号：US13374574

申请日：2011-12-31

Applicant: Charles E. Skinner ,  William Henry Campbell ,  Yung K. Kim

Inventor： Charles E. Skinner ,  William Henry Campbell ,  Yung K. Kim

IPC: B01D15/04 ,  C07H21/00 ,  C22B9/00 ,  C22B11/00 ,  C22B13/00 ,  C22B17/00 ,  C22B19/00 ,  C22B25/00 ,  C22B26/20 ,  C22B34/10 ,  C22B34/20 ,  C22B34/30 ,  C22B47/00 ,  C22B59/00 ,  C22B30/02 ,  C22B60/02 ,  C22B60/04 ,  C07K1/14

CPC classification number: C08G83/003 ,  B01J20/3204 ,  B01J20/3219 ,  B01J20/3257 ,  B01J20/3272 ,  B01J20/328 ,  B01J20/3289 ,  C07K1/22 ,  C08L101/005 ,  Y10T428/2991 ,  Y10T428/2995 ,  Y10T428/2998

Abstract: Multi-layered macromolecules wherein the layers are covalently bonded together and wherein the macromolecules are covalently bonded to solid particulate substrates, methods for the preparation of such compositions, and methods for their uses in a multitude of end use applications ranging from the purification of waste chemical and metal process streams to the separation and identification of proteins, peptides, and oligionucleotides.

公开(公告)号：US20060196585A1

公开(公告)日：2006-09-07

申请号：US11306705

申请日：2006-01-09

Applicant: Hans-Joachim Lunk ,  Ricky Morgan ,  Henry Stevens

Inventor： Hans-Joachim Lunk ,  Ricky Morgan ,  Henry Stevens

IPC: C22B34/30 ,  C01G41/00 ,  C01G37/14 ,  C22C27/04

CPC classification number: C22B34/36

Abstract: The leachability of tungsten in an aqueous medium may be suppressed by combining tungsten metal with a metal oxide or metal salt that will form an insoluble tungsten-containing compound when the mixture is brought into contact with an aqueous medium. The additive is preferably present in an amount from about 1 weight percent (wt. %) to about 10 weight percent of the tungsten of the tungsten. Preferred additives are lead oxide and calcium sulfate.

Abstract translation: 通过将钨金属与将在与水性介质接触的混合物中形成不溶性含钨化合物的金属氧化物或金属盐组合可以抑制钨在水性介质中的浸出性。 添加剂优选以钨的钨的约1重量％（wt。％）至约10重量％的量存在。 优选的添加剂是氧化铅和硫酸钙。

公开(公告)号：US20050287054A1

公开(公告)日：2005-12-29

申请号：US10873598

申请日：2004-06-23

Applicant: Brian Blakey ,  James Young Rawson ,  Bang Kim ,  Angelo Bracco

Inventor： Brian Blakey ,  James Young Rawson ,  Bang Kim ,  Angelo Bracco

IPC: C02F1/48 ,  C02F1/52 ,  C02F1/66 ,  C02F1/70 ,  C22B34/30

CPC classification number: C02F1/5245 ,  C02F1/488 ,  C02F1/66 ,  C02F1/705 ,  C02F2101/20 ,  C02F2103/06 ,  Y10S210/912

Abstract: A method and system for decreasing the concentration of at least one metal in an aqueous solution. The metal may be molybdenum, tungsten, or both. An aqueous solution is introduced into at least one reaction zone, and at least one source of hydroxide ions is provided into the at least one reaction zone in an amount sufficient to precipitate at least some of the mass of the at least one metal. The aqueous solution includes a mass of the at least one metal and a mass of at least one reducing agent. The at least one reducing agent includes at least ferrous iron from at least one source of the at least one reducing agent. A composition of tungsten ferrite or molybdenum tungsten ferrite may be formed. The method may be used for purifying water, for the refining of metals, or to facilitate a chemical analytical determination.

Abstract translation: 一种降低水溶液中至少一种金属的浓度的方法和系统。 金属可以是钼，钨或两者。 将水溶液引入至少一个反应区，并且将至少一个氢氧根离子源提供至至少一个反应区中，其量足以沉淀至少一种该至少一种金属的质量。 水溶液包括至少一种金属的质量和至少一种还原剂的质量。 至少一种还原剂至少包含来自至少一种还原剂的至少一种来源的亚铁。 可以形成钨铁氧体或钼钨铁氧体的组成。 该方法可用于净化水，用于金属精炼，或用于化学分析测定。

公开(公告)号：US20050061109A1

公开(公告)日：2005-03-24

申请号：US10502305

申请日：2003-01-20

Applicant: Philippe Liebaert

Inventor： Philippe Liebaert

IPC: C21C5/52 ,  C22B1/244 ,  C22B5/04 ,  C22B34/12 ,  C22B34/20 ,  C22B34/30 ,  C22B34/32 ,  B22F9/20

CPC classification number: C21C5/5264 ,  C22B1/244 ,  C22B5/04 ,  C22B34/32 ,  Y02P10/216

Abstract: The invention relates to a method of producing granules made of high purity metal or metal alloy, in particular based on chromium, the method being characterized in that it comprises the steps consisting in: preparing a metal or a metal alloy having non-metallic inclusions essentially comprising oxides of the base metal; pelletizing the metal or the alloy with a reducing agent in order to form the pellets or tablets; treating the pellets or tablets in a vacuum in order to enable the reducing agent to react on the inclusions without substantial sublimation of the metal or the metals of the alloy; and eliminating a surface layer from the pellets or tablets. The invention is applicable to manufacturing mechanical parts out of superalloys.

Abstract translation: 本发明涉及一种生产由高纯度金属或金属合金制成的颗粒的方法，特别是基于铬，该方法的特征在于其包括以下步骤：制备基本上具有非金属夹杂物的金属或金属合金 包括贱金属的氧化物; 用还原剂造粒金属或合金以形成丸粒或片剂; 在真空中处理颗粒或片剂，以使还原剂能够在夹杂物上反应而不使金属或合金的金属显着升华; 并从颗粒或片剂中除去表面层。 本发明适用于从超合金制造机械部件。

公开(公告)号：US5547646A

公开(公告)日：1996-08-20

申请号：US377580

申请日：1995-01-24

Applicant: R udiger Drope

Inventor： R udiger Drope

IPC: C22B34/32 ,  C01G37/00 ,  C01G37/14 ,  C22B34/30

CPC classification number: C22B34/32

Abstract: A process for the decomposition of chrome ore by alkaline oxidation bymixing finely divided chrome ore with alkaline compounds,heating the mixture in an indirectly heated rotary kiln to between 800.degree. and 1,200.degree. C.,introducing oxygen or gases enriched with oxygen countercurrently to the mixture, whereinthe mixture of chrome ore and alkaline compound is divided into a large number of individual streams,each individual stream is fed into a separate indirectly heated rotary kiln,the large number of rotary kilns is combined in the form of a bank of kilns,the theoretical distance covered by the particles of the mixture through the rotary kiln is 5 to 30 m, andthe resulting average coverage of the inner surface of the rotary kiln is 1 to 5 kg of mixture/m.sup.2.

Abstract translation: 通过将细碎的铬矿与碱性化合物混合，通过碱性氧化分解铬矿的方法，将间接加热的回转窑中的混合物加热至800-1200℃，将富含氧的氧气或氧气逆流地引入到 混合物，其中铬矿和碱性化合物的混合物被分成大量单独的物流，每个单独的物流被供给到单独的间接加热的回转窑中，大量的回转窑以一窑的形式组合 混合物颗粒通过回转窑覆盖的理论距离为5〜30μm，所得回转窑内表面的平均覆盖面为1〜5kg混合物/ m2。

公开(公告)号：US5201940A

公开(公告)日：1993-04-13

申请号：US768431

申请日：1991-09-26

Applicant: Robin J. Batterham ,  Roderick M. Grant ,  James V. Happ ,  Glenn A. Thiele

Inventor： Robin J. Batterham ,  Roderick M. Grant ,  James V. Happ ,  Glenn A. Thiele

IPC: C22B1/10 ,  B01J8/18 ,  B01J8/32 ,  B22F9/22 ,  C01D20060101 ,  C21B13/00 ,  C21B13/14 ,  C21D20060101 ,  C22B5/14 ,  C22B34/30 ,  C22B34/32

CPC classification number: B01J8/1836 ,  B22F9/22 ,  C21B13/0026 ,  C21B13/14 ,  C22B1/10 ,  C22B34/32 ,  Y02P10/136

Abstract: The specification discloses a process for pre-heating and pre-reducing metal oxide ores. The process comprises introducing particles of an oxide ore entrained in a gas through a port into a treatment chamber. Inside the treatment chamber teh stream of entrained particles combines with a stream of high temperature reducing gas in such a way that the particles are heated rapidly and enter into flow patterns whereby contact with other particles and the internal surface of the treatment chamber is minimized. The stream of entrained particles and the stream of high temperature reducing gas are substantially co-current. A treatment chamber elongated in the direction of co-current flow is described in the specification. The hot off-gases may be derived from a molten bath reactor and comprise a high concentration of carbon monoxide and hydrogen.

Abstract translation: PCT No.PCT / AU90 / 00232 Sec。 371日期1991年9月26日 102（e）1991年9月26日PCT PCT 1990年5月30日PCT PCT。 出版物WO90 / 15162 日期为1990年12月13日。该说明书公开了一种预加热和预还原金属氧化物矿石的方法。 该方法包括将通过端口夹带在气体中的氧化物矿的颗粒引入处理室。 在处理室内，夹带的颗粒流与高温还原气体流结合，使得颗粒被快速加热并进入流动图案，由此与其他颗粒和处理室的内表面的接触最小化。 夹带的颗粒物流和高温还原气体流是基本上并流的。 在说明书中描述了沿并流方向延伸的处理室。 热的废气可以来自熔池反应器，并且包含高浓度的一氧化碳和氢气。

公开(公告)号：US4397821A

公开(公告)日：1983-08-09

申请号：US337558

申请日：1982-01-04

Applicant: Leo W. Beckstead ,  Paul B. Queneau

Inventor： Leo W. Beckstead ,  Paul B. Queneau

IPC: C01G41/00 ,  C22B34/30

CPC classification number: C01G41/00

Abstract: Synthetic scheelite (calcium tungstate) having a low sulfur content is produced in high yield from an aqueous solution of sodium tungstate, that can be contaminated with sulfate ion dissolved therein, by digesting the solution with solid calcium sulfate whereby low-sulfur calcium tungstate precipitates. The solution remaining after filtration of the calcium tungstate product can be treated with calcium sulfate to precipitate additional purified calcium tungstate or to generate a calcium tungstate-calcium sulfate mixture that can be recycled for digestion with additional sulfate-contaminated sodium tungstate solution.

Abstract translation: 通过用固体硫酸钙消化溶液，由钨酸钨低沉淀析出，从钨酸钠水溶液中产生硫酸盐含量低的合成白钨矿（钨酸钙）可以被溶解在其中的硫酸根离子污染。 过滤钨酸钙产品后剩下的溶液可以用硫酸钙处理以沉淀另外的纯化的钨酸钙，或者产生钨酸钙 - 硫酸钙混合物，其可再循环用于另外的硫酸盐污染的钨酸钠溶液的消化。

公开(公告)号：US4298582A

公开(公告)日：1981-11-03

申请号：US140569

申请日：1980-04-15

Applicant: Jameel Menashi ,  Alkis S. Rappas ,  Donald A. Douglas

Inventor： Jameel Menashi ,  Alkis S. Rappas ,  Donald A. Douglas

IPC: C01G31/00 ,  C22B34/22 ,  C22B34/30

CPC classification number: C01G31/00 ,  C22B34/22 ,  C22B34/30 ,  Y02P10/234

Abstract: Disclosed is a process for recovering chromium, vanadium, molybdenum, and tungsten from secondary resources such as alloy scrap comprising a refractory metal and base metals such as cobalt, nickel, iron, and copper. The scrap is calcined with sodium carbonate in air to convert the refractory metal values to MoO.sub.4.sup.=, VO.sub.4.sup..ident., WO.sub.4.sup.=, and CrO.sub.4.sup.= and the base metals to water insoluble oxides. A leach of the calcined materials produces a pregnant liquor rich in refractory metals which, after separation of the vanadium, molybdenum and tungsten values, is treated with CO, CHOO.sup.-, CH.sub.3 OH, or HCHO to reduce Cr.sup.+6 to Cr.sup.+3. The carbonate and bicarbonate salts produced as a byproduct of the reduction are recycled to the calcination stage.As a result of the V, W, and Mo partition, a mixed solid comprising CaO.nV.sub.2 O.sub.5, CaMoO.sub.4, and CaWO.sub.4 is produced. This is treated with carbonated water or formic acid to selectively dissolve vanadium values which are subsequently recovered by precipitation or extraction. The remaining mixed CaWO.sub.4 and CaMoO.sub.4 solid is treated with H.sub.2 O.sub.2 and sulfuric acid to reject a Mo and W-free CaSO.sub.4 precipitate, and to produce a concentrated solution of tungsten and molybdenum. The W values are selectively precipitated from this solution by decomposing the peroxy complexes. The process has the advantages that a wide variety of different feed materials can be treated, no energy intensive pyrometallurgy is involved, reagent consumption is minimized, and no aqueous effluents are produced.

Abstract translation: 公开了从二次资源中回收铬，钒，钼和钨的方法，例如包含难熔金属和诸如钴，镍，铁和铜的贱金属的合金废料。 将废料用碳酸钠在空气中煅烧以将难熔金属值转化为MoO4 =，VO4 =，WO4 =和CrO4 =，并将贱金属转化为水不溶性氧化物。 煅烧材料的浸出产生富含难熔金属的怀孕液体，在分离钒，钼和钨的值后，用CO，CHOO-，CH 3 OH或HCHO处理以将Cr + 6还原为Cr + 3。 作为还原的副产物产生的碳酸盐和碳酸氢盐被再循环到煅烧阶段。 作为V，W和Mo分隔的结果，制备了包含CaO·nV 2 O 5，CaMoO 4和CaWO 4的混合固体。 用碳酸水或甲酸处理，以选择性地溶解钒值，随后通过沉淀或萃取回收。 剩余的混合CaWO4和CaMoO4固体用H 2 O 2和硫酸处理以排除Mo和无W的CaSO 4沉淀物，并产生钨和钼的浓溶液。 W值通过分解过氧配合物从该溶液中选择性沉淀。 该方法的优点是可以处理各种不同的饲料，不涉及能量密集的火法冶金，减少试剂消耗，不产生含水废水。