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1. 发明授权

US11466341B2 Extractant for rare earth extraction from aqueous phosphoric acid solutions and method of extraction 有权
公开(公告)号：US11466341B2
公开(公告)日：2022-10-11
申请号：US16331264
申请日：2017-09-14
申请人： COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE , UNIVERSITE DE MONTPELLIER
发明人： Stéphane Pellet-Rostaing , Julien Rey , Sandrine Dourdain , Guilhem Arrachart , Sefkan Atak
IPC分类号： C22B59/00 , C22B3/28 , C22B3/38 , C22B3/32
摘要： An extractant which makes it possible to extract both light rare earths and heavy rare earths from an aqueous phosphoric acid solution, likely to be present in this solution, and which is characterised in that it comprises: a compound of formula (I) below: wherein R1 and R2, identical or different, are a hydrocarbon group, saturated or unsaturated, linear or branched, in C6 to C12; R3 is a hydrocarbon group, in C1 to C6, or a hydrocarbon group, saturated or unsaturated, monocyclic, in C3 to C8; R4 and R5, identical or different, are a hydrogen atom or a hydrocarbonate group, saturated or unsaturated, linear or branched, in C2 to C8; and a surfactant. Applications of this extractant include treatment of aqueous solutions from the leaching of natural phosphates by sulphuric acid and aqueous solutions from the leaching of urban minerals by phosphoric acid, in view of making profitable use of the rare earths present in these solutions.

2. 发明授权

US10807879B2 Processing method for lithium ion battery scrap 有权
公开(公告)号：US10807879B2
公开(公告)日：2020-10-20
申请号：US16085337
申请日：2017-03-15
申请人： JX NIPPON MINING & METALS CORPORATION
发明人： Junichi Ito , Junichi Arakawa , Takuya Yokota , Naoki Higuchi
IPC分类号： C01G45/00 , C22B3/00 , C22B3/26 , C22B3/44 , C22B3/30 , C22B3/38 , B09B3/00 , C21B15/00 , C22B26/12 , C22B7/00 , H01M10/54 , C01G51/00 , C01G51/04 , C01G53/00 , C01G53/04
摘要： A method for processing lithium ion battery scrap according to this invention includes a leaching step of leaching lithium ion battery scrap to obtain a leached solution; an aluminum removal step of neutralizing the leached solution to a pH range of from 4.0 to 6.0, then performing solid-liquid separation and removing aluminum in the leached solution to obtain a first separated solution; and an iron removal step of adding an oxidizing agent to the first separated solution and adjusting the pH in a range of from 3.0 to 5.0, then performing solid-liquid separation and removing iron in the first separated solution to obtain a second separated solution.

3. 发明申请

US20190218643A1 NEW EXTRACTANT, USEFUL FOR EXTRACTING RARE EARTHS FROM AN AQUEOUS PHOSPHORIC ACID SOLUTION, AND THE APPLICATIONS THEREOF 审中-公开
公开(公告)号：US20190218643A1
公开(公告)日：2019-07-18
申请号：US16331264
申请日：2017-09-14
申请人： COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE , UNIVERSITE DE MONTPELLIER
发明人： Stéphane Pellet-Rostaing , Julien Rey , Sandrine Dourdain , Guilhem Arrachart , Sefkan Atak
IPC分类号： C22B59/00 , C22B3/28 , C22B3/38
CPC分类号： C22B59/00 , C22B3/0012 , C22B3/0067 , Y02P10/234
摘要： A new extractant which makes it possible to extract both light rare earths and heavy rare earths from an aqueous phosphoric acid solution, likely to be present in this solution, and which is characterised in that it comprises: —a compound of formula (I) below: wherein R1 and R2, identical or different, are a hydrocarbon group, saturated or unsaturated, linear or branched, in C6 to C12; R3 is a hydrocarbon group, in C1 to C6, or a hydrocarbon group, saturated or unsaturated, monocyclic, in C3 to C8; R4 and R5, identical or different, are a hydrogen atom or a hydrocarbonate group, saturated or unsaturated, linear or branched, in C2 to C8; and—a surfactant. It also relates to the applications of this new extractant: treatment of aqueous solutions from the leaching of natural phosphates by sulphuric acid and aqueous solutions from the leaching of urban minerals by phosphoric acid, in view of making profitable use of the rare earths present in these solutions.

4. 发明申请

US20180237886A1 METHOD FOR RECOVERING ZINC FROM SOLUTION 审中-公开
公开(公告)号：US20180237886A1
公开(公告)日：2018-08-23
申请号：US15764059
申请日：2016-09-29
申请人： METALEACH LIMITED
发明人： Nicholas James WELHAM
IPC分类号： C22B3/00 , C22B3/14 , C22B3/38
CPC分类号： C22B19/24 , C22B3/0068 , C22B3/14 , Y02P10/234
摘要： A method for recovering zinc from an aqueous ammoniacal ammonium carbonate zinc solution, the method comprising the steps of: Contacting the aqueous ammoniacal ammonium carbonate zinc solution with an organic solution of a zinc extractant, such that a portion of the zinc is transferred from the aqueous ammoniacal ammonium carbonate zinc solution, producing a zinc-depleted aqueous ammoniacal ammonium carbonate solution and a zinc-enriched organic solution of a zinc extractant; Separating the zinc-enriched organic solution of a zinc extractant from the zinc-depleted aqueous ammoniacal ammonium carbonate solution; Contacting the zinc-enriched organic solution with an aqueous acidic solution, producing a zinc-enriched aqueous acidic solution and a zinc-depleted organic solution of a zinc extractant; and Recovering zinc from the zinc-enriched aqueous acid solution.

5. 发明授权

US09752212B2 Method for extracting and separating rare-earth element 有权
公开(公告)号：US09752212B2
公开(公告)日：2017-09-05
申请号：US14389300
申请日：2012-09-29
申请人： CHANGCHUN INSTITUTE OF APPLIED CHEMISTRY, CHINESE ACADEMY OF SCIENCES
发明人： Ji Chen , Lin Guo , Lu Shen , Yuefeng Deng , Jingbo Lan
IPC分类号： C22B59/00 , C22B3/26 , C22B3/38 , C22B3/04 , C22B3/14
CPC分类号： C22B59/00 , C22B3/0005 , C22B3/0079 , C22B3/04 , C22B3/14 , Y02P10/234
摘要： A method for extracting and separating a rare-earth element by extracting and separating the rare-earth element from an aqueous solution of rare-earth nitrate into n-heptane, with 2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester trialkyl methyl ammonium or di-2-ethylhexyl phosphoric acid trialkyl methyl ammonium as an extractant, and n-heptane as a diluent by contacting the aqueous solution of rare-earth nitrate with the extractant and the diluent to extract and separate the rare earth element into n-heptane from the aqueous solution of rare earth nitrate.

6. 发明授权

US09732399B2 Method for producing metal zinc 有权
公开(公告)号：US09732399B2
公开(公告)日：2017-08-15
申请号：US13757468
申请日：2013-02-01
申请人： ZincOx Resources PLC
发明人： Antoine Masse
IPC分类号： C22B19/02 , C22B3/00 , C22B3/26 , C22B19/30 , C22B3/38 , C22B7/00 , C22B7/02
CPC分类号： C22B19/02 , C22B3/0005 , C22B3/0068 , C22B7/007 , C22B7/02 , C22B19/22 , C22B19/30 , Y02P10/234
摘要： A method for producing metal zinc by liquid/liquid extraction, comprising leaching of a zinc-bearing solid raw material containing antimony with a slightly acid aqueous solution, at a pH value maintained above 3 and less than or equal to 5, with formation of a suspension, drawing-off from the suspension of an aqueous phase containing zinc in solution to be subject to the extraction, additional leaching of the remaining suspension with an acid aqueous solution, at a pH value maintained below 3.5 and greater than or equal to 1, with formation of a pulp, introduction of a neutralizing agent in this pulp with coprecipitation of antimony and other impurities and separation from this neutralized pulp of a zinc-bearing aqueous solution which is recycled to the step for leaching the zinc-bearing solid raw material.

7. 发明授权

US07674441B2 Highly pure hafnium material, target and thin film comprising the same and method for producing highly pure hafnium 失效
标题翻译：高纯铪材料，靶材和薄膜，以及生产高纯铪的方法
公开(公告)号：US07674441B2
公开(公告)日：2010-03-09
申请号：US12353405
申请日：2009-01-14
申请人： Yuichiro Shindo
发明人： Yuichiro Shindo
IPC分类号： C22B3/38 , C22B34/14
CPC分类号： C22B34/14 , C22B1/08 , C22B3/0005 , C22B9/228 , Y02P10/234
摘要： A method of manufacturing high purity hafnium is provided and includes the steps of making aqueous solution of chloride of hafnium, thereafter removing zirconium therefrom via solvent extraction, performing neutralization treatment to obtain hafnium oxide, further performing chlorination to obtain hafnium chloride, obtaining hafnium sponge via reducing said hafnium chloride, and performing electron beam melting to the hafnium sponge in order to obtain a hafnium ingot, as well as a high purity hafnium material obtained thereby and a target and thin film formed from such material. The present invention relates to a high purity hafnium material with reduced zirconium content contained in the hafnium, a target and thin film formed from such material, and the manufacturing method thereof, and provides efficient and stable manufacturing technology, a high purity hafnium material obtained according to such manufacturing technology, and a target and high purity hafnium thin film formed from such material.
摘要翻译：提供高纯度铪的制造方法，其特征在于，包括以下步骤：通过溶剂萃取法除去锆的氯化物水溶液，进行中和处理，得到氧化铪，进一步进行氯化，得到氯化铪，得到铪海绵减少所述氯化铪，并且对铪海绵进行电子束熔化以获得铪锭，以及由此获得的高纯度铪材料和由这种材料形成的靶和薄膜。本发明涉及铪中含有的锆含量降低的高纯度铪材料，由该材料形成的靶材和薄膜及其制造方法，提供高效稳定的制造工艺，根据对这种制造技术，以及由这种材料形成的目标和高纯度的铪薄膜。

8. 发明申请

US20050066774A1 Process for mutual separation of platinum group metals 有权
标题翻译：铂族金属相互分离的工艺
公开(公告)号：US20050066774A1
公开(公告)日：2005-03-31
申请号：US10944753
申请日：2004-09-21
申请人： Satoshi Asano , Shinichi Heguri , Yoshiaki Manabe , Masushi Kasai , Harumasa Kurokawa
发明人： Satoshi Asano , Shinichi Heguri , Yoshiaki Manabe , Masushi Kasai , Harumasa Kurokawa
IPC分类号： C22B11/00 , B01D11/04 , C01G55/00 , C22B3/10 , C22B3/26 , C22B3/38 , C22B3/44 , C22B11/06
CPC分类号： C22B11/04 , C22B3/0068 , C22B3/10 , C22B3/44 , Y02P10/234
摘要： A process for mutual separation of platinum group metals (PGM), wherein highly stable compounds and steps are used to efficiently remove impurity elements while preventing increase of impurity content relative to that of the PGM in the mother liquor and also preventing decomposition of a chloro complex, and palladium, platinum, iridium, ruthenium and rhodium are separated mutually in such a way that each of the separated PGM has a sufficient purity to be a commercial product. A process for mutual separation of PGM, comprising the first step for leaching a raw material containing PGM and impurity elements, second step for removing the impurity elements from the leach liquor by solvent extraction, third step for recovering palladium from the raffinate, fourth step for removing cationic impurity elements from the raffinate by solvent extraction, fifth step for recovering platinum from the raffinate by hydrolysis, sixth step for recovering ruthenium from the precipitate by leaching, and seventh step for recovering iridium by solvent extraction to prepare the stripping liquor containing iridium and raffinate containing rhodium.
摘要翻译：铂族金属（PGM）的相互分离方法，其中使用高度稳定的化合物和步骤来有效地除去杂质元素，同时防止杂质含量相对于母液中的PGM增加，并且还防止氯络合物的分解，钯，铂，铱，钌和铑相互分离，使得每个分离的PGM具有足够的纯度作为商业产品。一种用于相互分离PGM的方法，包括用于浸出含有PGM和杂质元素的原料的第一步骤;通过溶剂萃取从浸出液中除去杂质元素的第二步骤;从萃余液中回收钯的第三步骤; 通过溶剂萃取从萃余液中除去阳离子杂质元素;通过水解从萃余液回收铂的第五步骤;通过浸出从沉淀物中回收钌的第六步骤;通过溶剂萃取回收铱的第七步骤，制备含有铱的汽提液; 含有铑的残液。

9. 再颁专利

USRE36990E Chemical process for the recovery of metal from an organic complex 失效
标题翻译：从有机络合物中回收金属的化学工艺
公开(公告)号：USRE36990E
公开(公告)日：2000-12-19
申请号：US686953
申请日：1996-07-26
申请人： Domenico C. Cupertino , Peter A. Tasker
发明人： Domenico C. Cupertino , Peter A. Tasker
IPC分类号： C22B3/38 , C22B30/00 , C22B11/00
CPC分类号： C22B3/0068 , C22B30/00 , Y02P10/234
摘要： A method for the recovery of a metal from an organic complex thereof, said method comprising treating the complex with a weakly acid aqueous solution of an alkali metal, an alkaline earth metal or ammonium chloride having a chloride content of at least 4 molar whereby said complex is decomposed and metal ions are transferred to the aqueous solution.
摘要翻译：一种从其有机络合物中回收金属的方法，所述方法包括用氯化物含量为至少4摩尔的碱金属，碱土金属或氯化铵的弱酸性水溶液处理络合物，由此所述络合物分解并将金属离子转移到水溶液中。

10. 发明授权

US5874055A Chloride assisted hydrometallurgical extraction of metal 失效
标题翻译：氯化物辅助金属冶金提取
公开(公告)号：US5874055A
公开(公告)日：1999-02-23
申请号：US592732
申请日：1996-01-26
申请人： David L. Jones
发明人： David L. Jones
IPC分类号： B01D11/00 , B01D11/02 , C01G1/00 , C22B1/00 , C22B3/06 , C22B3/08 , C22B3/10 , C22B3/20 , C22B3/26 , C22B3/38 , C22B11/00 , C22B15/00 , C25C1/00 , C22B19/00
CPC分类号： C22B3/0005 , C22B11/00 , C22B15/0067 , C22B15/0069 , C22B15/0071 , C22B15/0084 , C22B15/0089 , C22B19/22 , C22B19/26 , C22B23/0415 , C22B23/0423 , C22B23/043 , C22B23/0453 , C22B3/0066 , C22B3/06 , C22B3/08 , C22B3/10 , C22B3/20 , C22B3/24 , Y02P10/234 , Y02P10/236
摘要： A process for the extraction of a metal from an ore or concentrate comprises subjecting the ore or concentrate to pressure oxidation in the presence of oxygen and an acidic solution containing halogen ions and a source of bisulphate or sulphate ions, such as H.sub.2 SO.sub.4. The metals which can be extracted by the process comprises copper, as well as non-cuprous metals, such as zinc, and precious metals, such as gold and silver.
摘要翻译：从矿石或浓缩物中提取金属的方法包括使矿石或浓缩物在氧气和含有卤素离子的酸性溶液和硫酸根离子源如H 2 SO 4的存在下进行压力氧化。可以通过该方法提取的金属包括铜，以及非亚铜金属，例如锌和贵金属，例如金和银。

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