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81. 发明授权

US09347115B2 Method for recovering rare earth element 有权
标题翻译：稀土元素回收方法
公开(公告)号：US09347115B2
公开(公告)日：2016-05-24
申请号：US14356322
申请日：2012-11-01
申请人： SUMITOMO METAL MINING Co., Ltd.
发明人： Kazunari Maeba , Yukie Kawakami , Keiji Kudo , Masatoshi Takano , Hitoshi Ishida , Satoshi Asano , Masahiro Tanaka
IPC分类号： C22B59/00 , C22B3/44 , C22B7/00
CPC分类号： C22B59/00 , C22B3/44 , C22B7/007 , Y02P10/234
摘要： The object of the present invention is to provide a method for recovering a rare earth element, which is capable of efficiently recovering a rare earth element with high recovery rate without using any expensive chemicals, solvents or the like. In the present invention, a water-soluble salt other than sulfate ions is allowed to coexist with an aqueous solution that contains a rare earth element, and then an alkali metal sulfate is added to the aqueous solution, thereby producing a precipitate of a double sulfate of the rare earth element.
摘要翻译：本发明的目的是提供一种回收稀土元素的方法，其能够在不使用任何昂贵的化学品，溶剂等的情况下以高回收率有效地回收稀土元素。在本发明中，使除硫酸根离子以外的水溶性盐与含有稀土元素的水溶液共存，然后向该水溶液中添加碱金属硫酸盐，由此生成双硫酸盐沉淀物的稀土元素。

82. 发明申请

US20160108498A1 METHOD FOR RECOVERING RARE EARTH ELEMENT 有权
标题翻译：恢复稀土元素的方法
公开(公告)号：US20160108498A1
公开(公告)日：2016-04-21
申请号：US14893611
申请日：2014-05-29
申请人： HITACHI METALS, LTD.
发明人： Hiroyuki HOSHI , Yu MIYAMOTO
IPC分类号： C22B59/00 , C22B1/00 , C22B7/00
CPC分类号： C22B59/00 , C01G1/02 , C01G56/007 , C21B11/00 , C21B15/02 , C22B1/00 , C22B7/001 , Y02P10/214
摘要： An object of the present invention is to provide a method according to which a rare earth element can be efficiently recovered from a workpiece containing at least a rare earth element and an iron group element, and also wear and damage to the treatment container can be suppressed, allowing the container to be used repeatedly for a long period of time. The method of the present invention as a means for resolution is characterized in that in the heat treatment of an oxidation-treated workpiece in the presence of carbon, when the oxidation-treated workpiece is placed in a treatment container, a carbon substance is interposed between the oxidation-treated workpiece and the bottom surface of the container, and the heat treatment is performed in an inert gas atmosphere or in vacuum at a temperature of 1300° C. or more.
摘要翻译：本发明的目的是提供一种能够从至少含有稀土元素和铁族元素的工件有效地回收稀土元素的方法，并且可以抑制对处理容器的磨损和损坏，允许容器长时间反复使用。本发明的分解方法的特征在于，在碳存在下对经氧化处理的工件进行热处理时，当氧化处理的工件放置在处理容器中时，碳物质介于氧化处理的工件和容器的底面，并且在惰性气体气氛中或在1300℃以上的温度下进行热处理。

83. 发明申请

US20160068930A1 EXTRACTION/SEPARATION METHOD 有权
标题翻译：提取/分离方法
公开(公告)号：US20160068930A1
公开(公告)日：2016-03-10
申请号：US14848537
申请日：2015-09-09
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Hiroto Sugahara
IPC分类号： C22B59/00 , C22B3/44
CPC分类号： C22B59/00 , C22B3/0005 , C22B34/14 , Y02P10/234
摘要： The inventive extraction/separation method involves the step of contacting an organic phase containing a dialkyldiglycol amic acid extractant: R1R2NCOCH2OCH2COOH with an aqueous solution containing scandium and zirconium and/or hafnium for thereby extracting zirconium and/or hafnium into the organic phase. The purity of scandium can be efficiently increased by the simple step of solvent extraction.
摘要翻译：本发明的提取/分离方法包括使含有二烷基二甘醇酰胺酸萃取剂：R 1 R 2 NCOCH 2 OCH 2 COOH的有机相与含有钪和锆和/或铪的水溶液接触的步骤，从而将锆和/或铪萃取到有机相中。通过溶剂萃取的简单步骤可以有效地提高钪的纯度。

84. 发明申请

US20160024616A1 A method for re-extraction of rare-earth metals from organic solutions and preparing concentrate of rare-earth metals 有权
标题翻译：从有机溶液中重新萃取稀土金属并制备稀土金属浓缩物的方法
公开(公告)号：US20160024616A1
公开(公告)日：2016-01-28
申请号：US14773739
申请日：2013-11-08
申请人： OPENED JOINT STOCK COMPANY "UNITED CHEMICAL COMPANY URALCHEM"
发明人： Mikhail Vladimirovich Genkin , Aleksey Vladimirovich Evtushenko , Aleksey Aleksandrovich Komkov , Alfiya Minerovna Safiulina , Vasiliy Sergeevich Spiridonov , Sergey Vladimirovich Shvetsov
IPC分类号： C22B59/00 , C22B3/20
CPC分类号： C22B59/00 , C22B3/0005 , C22B3/20 , C22B3/46 , Y02P10/234
摘要： The present invention relates to a method for recovery of rare earth metals (REM) from diluted aqueous acidic solutions comprising steps of liquid-phase extraction of REM into an organic phase and re-extraction of REM from the organic phase. The re-extraction is carried out by precipitation of REM as a solid phase in the form of a poorly soluble salt of a strong acid (pKa
摘要翻译：本发明涉及从稀酸水溶液中回收稀土金属（REM）的方法，包括将REM液相萃取到有机相中并从有机相中重新萃取REM的步骤。再提取通过以强酸（pKa <0）的难溶性盐的形式的REM作为固相沉淀来进行。在再提取的一个阶段，将REM回收至浓缩物中达99％以上。

85. 发明授权

US09228248B2 Method of recovering rare-earth elements 有权
标题翻译：回收稀土元素的方法
公开(公告)号：US09228248B2
公开(公告)日：2016-01-05
申请号：US14389304
申请日：2012-12-07
申请人： NIPPON LIGHT METAL COMPANY, LTD.
发明人： Kaoru Sugita , Yasushi Kobayashi , Yoshihiro Taguchi , Satoshi Takeda , Yuji Ota , Masashi Ojiri , Kazuhiro Oda , Hiroshi Sano
IPC分类号： C22B59/00 , B09B3/00 , C01F17/00 , C22B3/26 , C22B3/04 , C22B3/20 , C22B3/44 , C22B7/00
CPC分类号： C22B59/00 , B09B3/00 , C01F17/00 , C01F17/0006 , C22B3/0005 , C22B3/04 , C22B3/20 , C22B3/44 , C22B7/00 , C22B7/007 , Y02P10/234 , Y02W30/54
摘要： Provided is a method of recovering rare-earth elements by which rare-earth elements can be recovered efficiently from a bauxite residue serving as a raw material and containing the rare-earth elements. Specifically provided is a method of recovering rare-earth elements from a raw material, the raw material being a bauxite residue produced as a by-product in a Bayer process, the method including: using a bauxite residue having a specific surface area of 35 m2/g or more; adding, to the raw material bauxite residue, a liquid leaching agent formed of an aqueous solution of at least one kind of mineral acid selected from sulfuric acid, hydrochloric acid, nitric acid, and sulfurous acid, thereby preparing a slurry having a liquid-solid ratio of 2 to 30 and a pH of 0.5 to 2.2; subjecting the slurry to leaching treatment of the rare-earth elements under a temperature condition of room temperature to 160° C.; subjecting the slurry after the leaching treatment to solid-liquid separation, yielding a leachate; and separating and recovering the rare-earth elements from the leachate.
摘要翻译：提供一种回收稀土元素的方法，通过稀土元素可以从用作原料的铝土矿残渣中有效地回收并含有稀土元素。具体提供的是从原料中回收稀土元素的方法，原料是在拜耳法中作为副产物生产的铝土矿残渣，该方法包括：使用比表面积为35m 2的铝土矿残渣 / g以上; 向原料铝土矿残渣中添加由选自硫酸，盐酸，硝酸和亚硫酸中的至少一种无机酸的水溶液形成的液体浸出剂，由此制备具有液固的浆料比例为2至30，pH为0.5至2.2; 使该浆液在室温至160℃的温度条件下浸出处理稀土元素; 在浸出处理后对浆料进行固液分离，得到渗滤液; 并从渗滤液中分离回收稀土元素。

86. 发明申请

US20150368755A1 METHOD FOR PRODUCING A SOLID SCANDIUM-CONTAINING MATERIAL OF ENHANCED SCANDIUM CONTENT 有权
标题翻译：生产含有固体含硫原子的增强材料的方法
公开(公告)号：US20150368755A1
公开(公告)日：2015-12-24
申请号：US14650923
申请日：2013-12-10
申请人： SCANDIUM PTY LTD
发明人： David Gregory Nakon
IPC分类号： C22B59/00 , C07F5/00 , C07C51/41 , C22B7/00
CPC分类号： C22B59/00 , C01F17/0006 , C01F17/0043 , C01F17/005 , C01P2006/80 , C07C51/41 , C07F5/003 , C22B3/04 , C22B3/44 , C22B7/007 , Y02P10/234
摘要： A method for producing a solid scandium-containing material comprises providing an aqueous solution containing carbonate ions, carbamate ions, hydrogen carbonate (HCO3+) ions, or mixtures thereof, contacting the aqueous solution with a scandium containing material containing one or more impurities to produce a scandium-loaded solution and a depleted scandium containing material, separating the depleted scandium containing material from the scandium loaded solution, treating the scandium loaded solution to cause precipitation of a solid scandium-containing material whilst avoiding or minimising precipitation of impurities present in the aqueous solution, and separating the solid scandium-containing material from the solution. In another embodiment, a high purity scandium containing is produced by contacting a solid material containing scandium with an acid to form a scandium loaded solution, separating the scandium loaded solution from any solids, adding additional acid to the scandium loaded solution to reduce the pH and precipitating a high purity scandium oxalate material by adding oxalic acid to the solution.
摘要翻译：制备固体含钪材料的方法包括提供含有碳酸根离子，氨基甲酸根离子，碳酸氢盐（HCO 3 +）离子或其混合物的水溶液，使含水溶液与含有一种或多种杂质的含钪材料接触以产生钪负载溶液和含钪的材料，从含钪的溶液中分离出贫化的含钪材料，处理载有钪的溶液以引起固体含钪材料的沉淀，同时避免或最小化存在于水溶液中的杂质沉淀，并从溶液中分离固体含钪材料。在另一个实施方案中，通过使含有钪的固体材料与酸接触以形成负载钪的溶液，将负载有钪的溶液与任何固体分离，向负载钪的溶液中加入另外的酸以降低pH和通过向溶液中加入草酸沉淀出高纯度的草酸钪材料。

87. 发明授权

US09187805B2 Method for separating and refining scandium 有权
标题翻译：分离和精炼钪的方法
公开(公告)号：US09187805B2
公开(公告)日：2015-11-17
申请号：US14408775
申请日：2013-04-01
申请人： SUMITOMO METAL MINING CO., LTD.
发明人： Satoshi Asano
IPC分类号： C22B59/00 , C22B3/38 , C01F17/00 , C22B3/26
CPC分类号： C22B59/00 , C01F17/00 , C01F17/0006 , C01F17/0043 , C01P2006/80 , C22B3/0005 , C22B3/004 , C22B3/0052 , Y02P10/234
摘要： An object of the present invention is to provide a method for separating and refining scandium capable of efficiently separating and refining the scandium from a solution containing the scandium, with improved stripping, while securing separability (selectivity) of the scandium from impurity elements. The method of the present invention involves mixing a solution containing the scandium with an organic solvent containing a trioctylphosphine oxide to extract the scandium into the organic solvent; and mixing the organic solvent with a stripping starting solution containing any one or more of water, hydrochloric acid, sulfuric acid, and oxalic acid to strip the scandium from the organic solvent.
摘要翻译：本发明的目的是提供一种分离和精制钪的方法，该方法能够从保护钪的杂质元素的分离性（选择性）的角度提高剥离性，从而能够从含有钪的溶液中有效地分离和精制钪。本发明的方法包括将含有钪的溶液与含有三辛基氧化膦的有机溶剂混合以将钪萃取到有机溶剂中; 并将有机溶剂与含有水，盐酸，硫酸和草酸中的一种或多种的剥离起始溶液混合以从有机溶剂中剥离钪。

88. 发明申请

US20150307966A1 A Process, Method and Plant for Recovering Scandium 有权
标题翻译：回收钪的工艺，方法和工艺
公开(公告)号：US20150307966A1
公开(公告)日：2015-10-29
申请号：US14651145
申请日：2013-12-10
申请人： Clean TeQ Pty Ltd
发明人： Peter Voight , Nikolai Zontov , John Carr
IPC分类号： C22B59/00 , C01F17/00 , B01J19/24 , C22B3/42
CPC分类号： C22B59/00 , B01J19/24 , B01J41/07 , B01J43/00 , B01J49/07 , B01J49/45 , B01J49/57 , B01J2219/00002 , B01J2219/24 , C01F17/0006 , C22B3/42 , Y02P10/234
摘要： The present invention relates to a process, method and plant for recovering scandium and ions containing scandium using an ion exchange resin from a feed stream. The feed stream may be, but is by no means limited to, a leach liquor or leach pulp.
摘要翻译：本发明涉及使用来自进料流的离子交换树脂回收含有钪的钪和离子的方法和方法。进料流可以是但不限于浸出液或浸提纸浆。

89. 发明申请

US20150284821A1 METHOD FOR COLLECTING SCANDIUM 有权
标题翻译：收集SCANDIUM的方法
公开(公告)号：US20150284821A1
公开(公告)日：2015-10-08
申请号：US14437466
申请日：2014-04-08
申请人： SUMITOMO METAL MINIBG CO., LTD. , KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
发明人： Masatoshi Takano , Yoshitomo Ozaki , Satoshi Asano , Masahiro Goto , Fukiko Kubota , Yuzo Baba
IPC分类号： C22B59/00 , B01J20/26 , C22B7/00
CPC分类号： C22B59/00 , B01J20/22 , B01J20/26 , B01J45/00 , B01J49/50 , C22B3/24 , C22B3/42 , C22B7/005 , Y02P10/234
摘要： To efficiently and selectively recover scandium from an acid solution containing calcium, magnesium and scandium. In the present invention, an acid solution containing calcium, magnesium and scandium is brought into contact with a scandium recovering resin impregnated with an amide derivative represented by the following general formula for an hour or more. In the formula, R1 and R2 each represent the same or different alkyl groups. The alkyl group can be a straight chain or a branched chain. R3 represents a hydrogen atom or an alkyl group. R4 represents a hydrogen atom or any group other than an amino group, which is bound to the α carbon as an amino acid. The amide derivative is preferably any one or more of glycinamide derivatives, histidinamide derivatives, lysinamide derivatives and aspartic acid amide derivatives.
摘要翻译：有效和有选择地从含有钙，镁和钪的酸溶液中回收钪。在本发明中，将含有钙，镁和钪的酸溶液与浸渍有下述通式所示的酰胺衍生物的钪回收树脂接触1小时以上。在该式中，R 1和R 2各自表示相同或不同的烷基。烷基可以是直链或支链。 R3表示氢原子或烷基。 R4表示氢原子或氨基以外的任何与α碳结合的氨基酸的基团。酰胺衍生物优选为甘氨酰胺衍生物，组氨酸酰胺衍生物，赖氨酰胺衍生物和天冬氨酰胺衍生物中的一种或多种。

90. 发明授权

US09115419B2 Process for extraction of rare earth elements 有权
标题翻译：稀土元素提取工艺
公开(公告)号：US09115419B2
公开(公告)日：2015-08-25
申请号：US13858166
申请日：2013-04-08
申请人： Process Research Ortech Inc.
发明人： Vaikuntam I. Lakshmanan , Ramamritham Sridhar , M. A. Halim
IPC分类号： C22B59/00 , C22B3/08 , C22B3/10
CPC分类号： C22B59/00 , C22B3/08 , C22B3/10 , Y02P10/234
摘要： A process for the extraction of rare earth elements, including yttrium, from a rare earth element-bearing ore or concentrate, comprising the steps of leaching the rare earth element-bearing ore or concentrate with a lixiviant of hydrochloric acid and magnesium chloride at atmospheric pressure at a temperature of from 90° C. to the boiling point of the solution and at an Eh of at least 200 mV. After a liquid/solids separation step, the solution obtained is subjected to steps for removal of iron and for recovery of rare earth elements. Alternatively, rare earth element-bearing ore or concentrate may be leached with sulphuric acid and liquid obtained subjected to extraction of iron and other impurities. Raffinate obtained may be treated with oxalic acid, the precipitate dissolved in hydrochloric acid and subjected to solvent extraction for rare earth elements or the raffinate may be subjected to solvent extraction for removal of rare earth elements and then stripped with hydrochloric acid.
摘要翻译：一种从含有稀土元素的矿石或浓缩物中提取稀土元素（包括钇）的方法，包括以下步骤：在大气压力下将含稀土元素的矿石或浓缩物与盐酸和氯化镁的浸液浸出在90℃至该溶液的沸点和至少200mV的Eh下进行。在液/固分离步骤之后，将所得溶液进行除铁和用于回收稀土元素的步骤。或者，稀土元素矿石或浓缩物可以用硫酸浸出，所得液体经铁提取和其他杂质。得到的残液可用草酸处理，沉淀溶解于盐酸中，进行稀土元素的溶剂萃取，或萃取液进行溶剂萃取除去稀土元素，然后用盐酸汽提。

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