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1. 发明公开

EP4403658A1 VALUABLE ELEMENT RECOVERY MEHTOD 审中-实审
公开(公告)号：EP4403658A1
公开(公告)日：2024-07-24
申请号：EP22892447.8
申请日：2022-10-04
申请人： JFE Steel Corporation
发明人： HINO, Yuta , INOUE, Yotaro , TAKAHASHI, Katsunori
IPC分类号： C22B23/02 , B09B3/70 , B09B5/00 , C22B5/02 , C22B5/04 , C22B7/00 , C22B47/00 , H01M10/54
CPC分类号： Y02W30/84 , Y02P10/20 , B09B3/70 , B09B5/00 , H01M10/54 , C22B5/02 , C22B5/04 , C22B7/00 , C22B23/02 , C22B47/00
摘要： Provided is a method for recovering a valuable element, by which method metal with a high proportion of a valuable element can be obtained. The method includes adding a reductant to an oxide containing at least one element selected from the group consisting of nickel and cobalt, followed by heating, to thereby reduce the oxide, the reductant contains at least one selected from the group consisting of metallic iron and an iron oxide, and an addition amount of the reductant is 1.3 equivalent or less.

2. 发明公开

EP4397778A1 ALLOY PROCESSING METHOD 审中-实审
公开(公告)号：EP4397778A1
公开(公告)日：2024-07-10
申请号：EP22864605.5
申请日：2022-08-31
申请人： SUMITOMO METAL MINING CO., LTD.
发明人： SHOUJI, Hirofumi , TAKENOUCHI, Hiroshi , MATSUOKA, Itsumi , SANJO, Shota , MATSUGI, Takumi , HEGURI, Shin-ichi , ASANO, Satoshi
IPC分类号： C22B23/00 , C22B3/06 , C22B3/44 , C22B7/00
CPC分类号： Y02P10/20 , C22B7/00 , C22B3/44 , C22B23/00 , C22B3/06 , Y02W30/84
摘要： Provided is a method for effectively obtaining a solution containing nickel and/or cobalt from an alloy that contains copper as well as nickel and/or cobalt, in a waste lithium-ion battery or the like. The present invention is an alloy processing method for obtaining a solution containing nickel and/or cobalt from an alloy that contains copper as well as nickel and/or cobalt, said method including a leaching step for carrying out an acid solution leaching treatment on an alloy-containing slurry in the presence of a sulfurising agent to obtain a leachate and a leaching residue. In the leaching step, the leaching treatment is carried out with the initial concentration of the alloy-containing slurry adjusted to between 100 g/L and 250 g/L. Moreover, in the leaching step, the leaching treatment is preferably carried out while controlling the redox potential (using a silver/silver chloride electrode as a reference electrode) to 200 mV or less. Furthermore, in the leaching step, the leaching treatment is preferably carried out in the presence of the sulfurising agent in an amount in the range of 1.05 to 1.25 equivalent weight (S-mol/Cu-mol) in relation to the amount of copper contained in the alloy.

3. 发明公开

EP3382046A1 METHOD FOR RECYCLING COPPER INDIUM GALLIUM SELENIUM MATERIALS 审中-公开
公开(公告)号：EP3382046A1
公开(公告)日：2018-10-03
申请号：EP16886152.4
申请日：2016-12-26
申请人： Hanergy New Material Technology Co., Ltd.
发明人： GAO, Yongtao , LIU, Junfei , WANG, Guan , WU, Guofa
IPC分类号： C22B7/00 , C22B15/00 , C22B58/00 , C01B19/02 , C25C1/12
CPC分类号： C01B19/02 , C22B7/00 , C22B15/00 , C22B58/00 , C25C1/12 , Y02P10/234 , Y02P10/236
摘要： A method for recycling copper indium gallium selenium materials comprises the steps of leaching by using sulfuric acid and hydrogen peroxide, reduction of selenium by using sulfur dioxide, separation of copper by using hydrolysis, alkali separation of indium and gallium, replacement of indium, hydrolysis of gallium, and the like. Leaching is carried out by using sulfuric acid in cooperation with hydrogen peroxide, so that the leaching rate is greatly improved, and acid gas pollution is reduced; pH differential copper is separated by using metal ion hydrolysis, so that costs are low; and in addition, alkali separation of gallium is carried out, separation between indium and gallium can be implemented by merely adjusting the pH of a solution, the separation effect is good, the purities of obtained indium and gallium products are high.

4. 发明公开

EP3382044A1 RECOVERY METHOD FOR COPPER-INDIUM-GALLIUM-SELENIUM MATERIAL 审中-公开
公开(公告)号：EP3382044A1
公开(公告)日：2018-10-03
申请号：EP16886149.0
申请日：2016-12-26
申请人： Hanergy New Material Technology Co., Ltd.
发明人： LIU, Junfei , GAO, Yongtao , WANG, Guan , WU, Guofa , PENG, Kan
IPC分类号： C22B7/00 , C22B15/00 , C22B58/00 , C01B19/02
CPC分类号： C01B19/02 , C22B7/00 , C22B15/00 , C22B58/00 , Y02P10/212
摘要： Provided is a recovery method for a copper-indium-gallium-selenium material, mainly comprising the steps of sulfuric acid aeration leaching at a high temperature, reducing selenium with sodium sulfite, separating copper by extracting, separating indium and gallium with an alkali, replacing indium, electrolyzing gallium, etc. In the recovery method for a copper-indium-gallium-selenium material, a sulfuric acid aeration leaching means is used, thus reducing acid gas pollution; at the same time, an extraction agent for copper is used to extract copper, wherein the separating effect is good and the cost is low, and the extracted copper is directly electrolyzed so as to obtain a high-purity metal copper; moreover, an alkali is used to separate gallium, wherein realizing the separation of indium and gallium only requires the adjustment of the pH value of a solution, the separating effect is good and the obtained indium and gallium products have a relatively high purity.

5. 发明公开

EP3356568A1 PROCESS FOR THE PRODUCTION OF METALLIC GOLD NANOPARTICLES FROM AN EFFLUENT ARISING FROM ACID MINE DRANAIGE BIOREMEDIATION 有权
公开(公告)号：EP3356568A1
公开(公告)日：2018-08-08
申请号：EP15790308.9
申请日：2015-09-30
申请人： Universidade do Algarve , CCMAR - Centro de Ciências do Mar
发明人： MARIA CLARA, Silva Costa , ANA FILIPA, Benedito Assunção
IPC分类号： C22B7/00 , B22F1/00 , B22F9/24 , C22B3/00
CPC分类号： C22B11/042 , B22F1/0018 , B22F9/24 , B22F2301/255 , C22B7/00 , C22B7/006 , C22B11/04 , Y02P10/238
摘要： The present request describes a process to obtain metallic gold nanoparticles from an effluent containing sulfide, resulting from a bioremediation process of acid mine drainage (AMD) based on the use of sulfate-reducing bacteria. The disclosed process consists of the effluent addition to a gold solution in concentrations between 20-250 mg/L, in batch or continuous systems, allowing to obtain nanoparticles of Au(0) with a yield of 70-100%.

6. 发明公开

EP3190195A4 NICKEL RECOVERY METHOD 有权
公开(公告)号：EP3190195A4
公开(公告)日：2018-05-02
申请号：EP15831422
申请日：2015-07-23
申请人： SUMITOMO METAL MINING CO
发明人： SHOJI HIROFUMI , HAYATA JIRO , KUDOU KEIJI , HIGAKI TATSUYA
IPC分类号： C22B23/00 , C22B3/00 , C22B3/04 , C22B3/44 , C22B7/00 , C25C1/08
CPC分类号： C22B23/0407 , C22B3/44 , C22B7/00 , C22B23/0423 , C22B23/0461 , C22B23/0469 , C25C1/08 , Y02P10/234 , Y02P10/236
摘要： A nickel recovery process capable of decreasing nickel remaining in a byproduct by recovering nickel from the byproduct of electrolytic nickel manufacturing process by chlorine-leaching, and also, capable of simplifying a cementation step simultaneously, is provided. In a nickel recovery step S60, a nickel recovery step S70 and a nickel recovery step S80, nickel is recovered in each step from S 0 slurry, residue flaker and chlorine-leached residue, which are byproducts of electrolytic nickel manufacturing process by chlorine-leaching, by using an aqueous solution containing 80 g/L to 390 g/L of chlorine and 30 g/L to 70 g/L of copper.

8. 发明授权

EP2604713B1 Method of obtaining and separating valuable metallic elements, specifically from low-grade uranium ores and radioactive liquid wastes 有权
标题翻译：一种用于获得和分离有价值的金属元素，特别是低级铀矿石和放射性废液，过程
公开(公告)号：EP2604713B1
公开(公告)日：2015-08-19
申请号：EP12196071.0
申请日：2012-12-07
申请人： Instytut Chemii i Techniki Jadrowej
发明人： Zakrzewska-Trznadel, Grazyna , Jaworska-Sobczak, Agnieszka , Miskiewicz, Agnieszka , Lada, Wieslawa , Dluska, Ewa , Wronski, M. Stanislaw
IPC分类号： C22B7/00 , C22B60/02 , B01D63/16 , G21F9/04
CPC分类号： C22B60/02 , B01D65/08 , B01D2321/2008 , C22B7/00 , G21F9/007 , G21F9/04 , G21F9/12 , Y02P10/212

9. 发明公开

EP2739759A4 PROCESS FOR RECOVERING METALS BY REDUCTION AND CARBONYLATION 审中-公开
标题翻译：用于回收金属通过还原和羰基化
公开(公告)号：EP2739759A4
公开(公告)日：2015-04-08
申请号：EP12819996
申请日：2012-08-02
申请人： CVMR CORP
发明人： TEREKHOV DMITRI , VICTOR EMMANUEL NANTHAKUMAR , KHOZAN KAMRAN , VAN DER LINDE COLWYN
IPC分类号： C22B3/22 , C21B15/04 , C22B11/00 , C22B23/00 , C22B59/00
CPC分类号： C22B11/00 , C21B13/006 , C21B15/04 , C22B1/00 , C22B3/00 , C22B5/20 , C22B7/00 , C22B23/065 , C22B59/00 , Y02P10/136

10. 发明公开

EP2824200A1 PROCESS FOR THE COMPREHENSIVE RECOVERY OF METAL COBALT, RUTHENIUM AND ALUMINUM FROM WASTE CATALYST CO-RU/AL2O3 IN FISCHER-TROPSCH SYNTHESIS 有权
标题翻译： PROCEDURE用于金属钴，钌和铝的从废催化剂CO RU / Al2O3的AT费 - 托工艺完全恢复
公开(公告)号：EP2824200A1
公开(公告)日：2015-01-14
申请号：EP13758445.4
申请日：2013-03-04
申请人： Sunshine Kaidi New Energy Group Co., Ltd.
发明人： LIU, Qianqian , HAN, Yiming , SONG, Dechen , XU, Li , LAI, Bo
IPC分类号： C22B7/00
CPC分类号： C22B23/0446 , C01F7/142 , C01G51/00 , C01G51/04 , C01G55/004 , C01G55/005 , C01P2006/80 , C22B7/00 , C22B7/009 , C22B11/026 , C22B11/04 , C22B11/048 , C22B11/06 , C22B21/003 , C22B21/02 , C22B23/00 , C22B23/026 , Y02P10/214 , Y02P10/218 , Y02P10/224 , Y02P10/234 , Y02P20/129 , Y02P20/142
摘要： Provided is a process for the comprehensive recovery of metal cobalt, ruthenium and aluminum from a waste catalyst Co-Ru/Al 2 O 3 in a Fischer-Tropsch synthesis. First, a waste catalyst is subjected to hydrocarbon removal, and reduction treatment, to effectively separate a cobalt slag in an alkali fusion step, and then the cobalt slag is subjected to the steps of acid leaching, cobalt precipitation with oxalic acid or ammonium oxalate, reduction of cobalt oxalate, dissolution of metal cobalt with nitric acid, etc., to obtain Co(N0 3 ) 2 ·6H 2 O. A ruthenate which is dissolved by steps such as alkali fusion, and leaching with deionized water, is subjected to the steps of reduction with ethanol, dissolution with concentrated hydrochloric acid, distillation under reduced pressure, etc., to obtain a β-RuCl 3 ·xH 2 O product with a high purity. Aluminum hydroxide is prepared from a meta-aluminate solution by CO 2 carbonation, by controlling the parameters such as reaction temperature, flow rate of CO 2 , pH value at the end point of the reaction, etc., and the aluminum hydroxide is calcined to obtain aluminum oxide with a product quality achieving the quality requirements of first-class aluminum oxide in the Chinese national standard. The resulting product has a high yield, wherein cobalt is ≥ 97%, ruthenium is ≥ 95%, and aluminum is ≥ 92%.
摘要翻译：本发明提供用于从废催化剂共同的Ru /的Al 2 O 3在费 - 托合成金属钴，钌和铝的综合回收的方法。首先，将废弃物催化剂进行烃脱除，和还原处理，在超过碱熔步骤有效地分离钴炉渣，然后将钴炉渣进行酸浸出，钴沉淀的步骤用草酸或草酸铵，减少草酸盐的钴，金属钴溶解用硝酸等，以获得的Co（NO 3）2·6H 2 O的钌所有这是由溶解的步骤：如碱熔，并与去离子水沥滤，进行在减压下等，还原用乙醇，溶解，用浓盐酸，蒸馏的步骤，以得到一个²-的RuCl 3·XH 2 O产物具有高纯度。氢氧化铝是由偏铝溶液通过CO 2碳酸化制备，通过控制参数：如反应温度，流量的CO 2的速率，在反应中，等，且氢氧化铝的终点PH值煅烧以获得与产品质量实现一流的氧化铝在中国国家标准的质量要求氧化铝。所得到的产品具有高的产率，worin钴是‰¥97％，钌是‰¥95％，铝是‰¥92％。

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