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1. 发明授权

US10060007B2 Method of preparing a gold-containing solution and process arrangement for recovering gold and silver 有权
公开(公告)号：US10060007B2
公开(公告)日：2018-08-28
申请号：US14787404
申请日：2014-04-29
申请人： OUTOTEC (FINLAND) OY
发明人： Ville Miettinen , Riina Ahtiainen , Kari Valkama , Erkki Paatero , Kari Hietala , Mika Haapalainen
IPC分类号： C22B3/00 , C22B11/00 , C22B11/06 , C22B3/26 , C22B1/00 , C22B1/02 , C22B3/12 , C22B3/18 , C22B3/22 , C22B7/00
CPC分类号： C22B11/04 , C22B1/005 , C22B1/02 , C22B3/0005 , C22B3/12 , C22B3/18 , C22B3/22 , C22B7/008 , C22B11/042 , C22B11/06 , Y02P10/234 , Y02P10/238
摘要： The invention relates to a method for preparing a gold-containing solution by chloride leaching from gold-bearing raw materials. A further object of the invention is to provide a method for recovering gold and optionally silver from the prepared gold-containing solution. The invention relates also to a process arrangement for recovering gold and optionally silver.

2. 发明授权

US09982320B2 Treatment process for extraction of precious, base and rare elements 有权
公开(公告)号：US09982320B2
公开(公告)日：2018-05-29
申请号：US14950130
申请日：2015-11-24
申请人： LIFEZONE LIMITED
发明人： Keith Stuart Liddell , Lisa Anne Smith , Michael David Adams
IPC分类号： C22B3/00 , C22B3/08 , C22B3/20 , C22B11/06 , C01B7/07 , C22B3/10 , C22B15/00 , C25C1/20
CPC分类号： C22B3/08 , C01B7/0706 , C01B7/0712 , C01B7/0718 , C22B3/10 , C22B3/20 , C22B11/04 , C22B11/06 , C22B15/0069 , C22B15/0071 , C22B23/0423 , C22B23/043 , C25C1/20 , Y02P10/234
摘要： This invention describes a hydrometallurgical process for the recovery and separation of valuable elements, in particular gold and silver, from a feed material comprising a refractory, intractable or otherwise poorly responding to conventional treatment routes ores, concentrates and other materials. In particular, the process is a process integrated into one or more existing value element extraction processes.

3. 发明授权

US09758844B2 Method for recovering ruthenium from spent ruthenium-based catalyst carried on aluminum oxide 有权
公开(公告)号：US09758844B2
公开(公告)日：2017-09-12
申请号：US14479268
申请日：2014-09-05
申请人： Wuhan Kaidi Engineering Technology Research Institute Co., Ltd.
发明人： Bo Lai , Li Xu , Yiming Han , Qianqian Liu , Dechen Song
IPC分类号： C22B11/00 , C22B11/06 , C22B11/02 , C22B3/00
CPC分类号： C22B11/06 , C22B11/026 , C22B11/048 , Y02P10/214
摘要： A method for recovering ruthenium from a spent ruthenium-based catalyst carried on aluminum oxide includes: drying, calcining, and cooling a spent catalyst; grinding the spent catalyst into black powder; placing the black powder in a fluidized bed reactor, purging the reactor with hydrogen and heating the black powder to obtain ruthenium metal, then heating the black powder in a mixed atmosphere of oxygen and ozone to obtain RuO4 gas; absorbing the RuO4 gas with a sufficient amount of hydrochloric acid to obtain a H3RuCl6 solution; adding an excess oxidant to the H3RuCl6 solution to oxidize the H3RuCl6 into H2RuCl6; adding excess NH4Cl to the H2RuCl6 and then filtering, and washing the filter cake to obtain solid (NH4)2RuCl6; and reducing the solid (NH4)2RuCl6 by hydrogen to obtain ruthenium metal.

4. 发明申请

US20160145714A1 TREATMENT PROCESS FOR EXTRACTION OF PRECIOUS, BASE AND RARE ELEMENTS 有权
标题翻译：用于提取精细，基础和稀有元素的处理过程
公开(公告)号：US20160145714A1
公开(公告)日：2016-05-26
申请号：US14950130
申请日：2015-11-24
申请人： LIFEZONE LIMITED
发明人： Keith Stuart Liddell , Lisa Anne Smith , Michael David ADAMS
IPC分类号： C22B3/08 , C25C1/20 , C22B15/00 , C01B7/07 , C22B3/10 , C22B3/00
CPC分类号： C22B3/08 , C01B7/0706 , C01B7/0712 , C01B7/0718 , C22B3/10 , C22B3/20 , C22B11/04 , C22B11/06 , C22B15/0069 , C22B15/0071 , C22B23/0423 , C22B23/043 , C25C1/20 , Y02P10/234
摘要： This invention describes a hydrometallurgical process for the recovery and separation of valuable elements, in particular gold and silver, from a feed material comprising a refractory, intractable or otherwise poorly responding to conventional treatment routes ores, concentrates and other materials. In particular, the process is a process integrated into one or more existing value element extraction processes.
摘要翻译：本发明描述了一种用于从包括耐火材料，难处理或以其他对常规处理途径矿石，浓缩物和其它材料不良响应的进料中回收和分离有价值元素，特别是金和银的湿法冶金方法。特别地，该过程是集成到一个或多个现有价值元素提取过程中的过程。

5. 发明授权

US09347113B2 Precious metals recovery 有权
标题翻译：贵金属回收
公开(公告)号：US09347113B2
公开(公告)日：2016-05-24
申请号：US13976576
申请日：2012-12-03
申请人： STILLWATER MINING COMPANY
发明人： Dave Shuck , Jerry Kolstad , Mark Rapkoch , Grenvil Marquis Dunn
IPC分类号： C22B11/00 , C22B3/00 , C22B3/44 , C22B3/42 , C22B3/14 , C22B3/12
CPC分类号： C22B11/04 , C22B3/0002 , C22B3/10 , C22B3/12 , C22B3/165 , C22B3/22 , C22B3/42 , C22B3/44 , C22B11/06 , Y02P10/234
摘要： Discloses a hydrometallurgical process and system for the recovery of precious metals; specifically palladium, rhodium, and platinum metals, at high purity and with limited waste and environmental fouling.
摘要翻译：公开了一种用于回收贵金属的湿法冶金工艺和系统; 特别是钯，铑和铂金属，具有高纯度和有限的废物和环境污染。

6. 发明申请

US20140377151A1 PROCESS FOR RECOVERY OF COBALT, RUTHENIUM, AND ALUMINUM FROM SPENT CATALYST 有权
标题翻译：从惰性催化剂中回收钴，钌和铝的方法
公开(公告)号：US20140377151A1
公开(公告)日：2014-12-25
申请号：US14477935
申请日：2014-09-05
申请人： Sunshine Kaidi New Energy Group Co., Ltd.
发明人： Qianqian LIU , Yiming HAN , Dechen SONG , Li XU , Bo LAI
IPC分类号： C22B3/00 , C22B21/02 , C22B11/06
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： A method for recovering cobalt, ruthenium, and aluminum from spent Co—Ru/Al2O3 catalyst. First, Co—Ru/Al2O3 spent catalyst is subjected to hydrocarbon removal, reaction with hydrogen, and alkali fusion to obtain a slag. The slag is subjected to acid leaching, precipitation of cobalt with oxalic acid or ammonium oxalate, reduction of cobalt oxalate, and dissolution of cobalt metal with nitric acid to obtain Co(NO3)2.6H2O. The effluent of acid leaching is subjected to reaction with ethanol, filtration to obtain a filtrate and residue, dissolution of the residue with concentrated hydrochloric acid, and vacuum distillation to obtain β-RuCl3.xH2O. Aluminum hydroxide is prepared from the filtrate through carbonation and calcination. The cobalt yield is ≧97%; the ruthenium yield is ≧95%, and the aluminum yield is ≧92%.
摘要翻译：从废Co-Ru / Al2O3催化剂中回收钴，钌和铝的方法。首先，将Co-Ru / Al2O3废催化剂进行烃去除，与氢反应和碱熔融，得到渣。炉渣进行酸浸，用草酸或草酸铵沉淀钴，还原草酸钴，用硝酸溶解钴金属，得到Co（NO 3）2·6H 2 O. 将酸浸出液与乙醇反应，过滤，得到滤液和残留物，用浓盐酸溶解残留物，减压蒸馏，得到-RuCl 3·xH 2 O。通过碳酸化和煅烧从滤液制备氢氧化铝。钴产率≥97％。钌产率≥95％，铝产率≥92％。

7. 发明申请

US20100257978A1 PROCESS FOR RECOVERING PLATINUM GROUP METALS FROM ORES AND CONCENTRATES 有权
标题翻译：从ORES和浓度中回收铂族金属的方法
公开(公告)号：US20100257978A1
公开(公告)日：2010-10-14
申请号：US12762503
申请日：2010-04-19
申请人： Mario Bergeron , Marc Richer-Lafléche
发明人： Mario Bergeron , Marc Richer-Lafléche
IPC分类号： C22B11/00
CPC分类号： C22B1/08 , C22B11/04 , C22B11/06 , C22B34/1209 , C22B34/32
摘要： A method for recovering at least one platinum group metal (PGM) species from a feed product selected from the group consisting of chromite ore, chromite ore concentrate and PGM concentrate comprising the steps of: mixing the feed with at least one salt so as to produce a mixture, whereby the concentration of salt in the mixture is sufficient to convert at least one PGM species into a corresponding PGM chloride salt; and contacting the mixture with gaseous chlorine and CO at a temperature between about 240° C. and 800° C. to induce the conversion of at least one species of PGM into a solid material containing a corresponding PGM chloride salt, whereby said chloride salt of at least one PGM species can be recovered.
摘要翻译：一种用于从选自铬铁矿，铬铁矿精矿和PGM浓缩物的进料产物中回收至少一种铂族金属（PGM）物质的方法，包括以下步骤：将进料与至少一种盐混合以产生其中混合物中盐的浓度足以将至少一种PGM物质转化为相应的PGM氯化物盐; 并在约240℃和800℃之间的温度下使混合物与气态氯和CO接触，以诱导至少一种PGM转化成含有相应PGM氯化物盐的固体物质，由此所述氯化物盐可以回收至少一种PGM物质。

8. 发明申请

US20090315232A1 Dissolution Apparatus for Noble Metals 有权
标题翻译：高贵金属溶解仪
公开(公告)号：US20090315232A1
公开(公告)日：2009-12-24
申请号：US12489857
申请日：2009-06-23
申请人： Min Seuk Kim , Jong Gwan Ahn
发明人： Min Seuk Kim , Jong Gwan Ahn
IPC分类号： C22B11/00
CPC分类号： C22B11/06 , C22B3/02 , Y02P10/234
摘要： Provided is an apparatus for dissolving noble metals, including: a sealed dissolution reactor provided with agitators; a sealed electrolysis type chlorine producing unit for supplying chlorine gas produced via electrolysis to the dissolution reactor; a pH adjusting unit for controlling and maintaining pH of the liquid inside the dissolution reactor to convert the chlorine gas supplied to the dissolution reactor into a chlorine compound; and an inorganic material extraction unit for extracting inorganic materials from the liquid received from the dissolution reactor via heating/evaporation, wherein the pH adjusting unit controls pH of the liquid inside the dissolution reactor in such a manner that the chlorine compound is produced, the noble metal in a noble metal-containing sample introduced into the dissolution reactor is dissolved by the chlorine compound, and the liquid evaporated from the inorganic material extraction unit is recycled to the dissolution reactor.
摘要翻译：提供一种用于溶解贵金属的装置，包括：设置有搅拌器的密封溶解反应器; 用于将通过电解产生的氯气供应到溶解反应器的密封电解型氯生产单元; pH调节单元，用于控制和保持溶解反应器内的液体的pH，以将供应到溶解反应器的氯气转化为氯化合物; 以及无机材料提取单元，用于从通过加热/蒸发从溶解反应器接收的液体中提取无机材料，其中pH调节单元以制备氯化合物的方式控制溶解反应器内的液体的pH，贵金属引入溶解反应器的含贵金属的样品中的金属被氯化合物溶解，从无机材料提取单元蒸发的液体被再循环到溶解反应器中。

9. 发明申请

US20090007729A1 Method of Precious Metal Recovery 失效
标题翻译：贵金属回收方法
公开(公告)号：US20090007729A1
公开(公告)日：2009-01-08
申请号：US12087446
申请日：2007-01-09
申请人： Viktor Andreevich Sinegribov , AndreiFilippovich Smetannikov , TatyanaBorisovna Udina , PavelUrievich Novikov , Izabella Alekseevna Logvinenko , ArkadiyEvgenievich Krasnoshtein
发明人： Viktor Andreevich Sinegribov , AndreiFilippovich Smetannikov , TatyanaBorisovna Udina , PavelUrievich Novikov , Izabella Alekseevna Logvinenko , ArkadiyEvgenievich Krasnoshtein
IPC分类号： C22B9/00
CPC分类号： C22B11/04 , C22B1/08 , C22B3/065 , C22B3/24 , C22B11/042 , C22B11/06 , Y02P10/214 , Y02P10/234
摘要： The proposed invention relates to methods of precious metal recovery and may be applied to the recovery of precious metals from various types of mineral raw source materials containing chlorides of alkali and earth metals, e.g. collective concentrate produced from clay-salt residue of potassium production, or marker clays, etc. This method includes chlorinating roasting of the collective concentrate produced during enrichment of the material with residual chlorides content of 7-13%, or natural concentrate with up to 15% chlorides content. Thereafter, the cinder is leached by an aqua-regia solution, the precious metals are recovered from the pulp via of sorption, chlorinating roasting is held at 600-700° C., the precious metals are leached from the cinder using diluted solution of aqua-regia, and then via sorption. The process is cost-efficient due to the use of chlorinating agent, reduction of the process steps number, decreasing of the roasting temperature, and the leaching by diluted acid.
摘要翻译：所提出的发明涉及贵金属回收方法，并且可以应用于从各种类型的含有碱金属和地球金属氯化物的矿物原料来回收贵金属。由钾生产的粘土盐残渣或标记粘土等产生的集体浓缩物。该方法包括在残留的氯化物含量为7-13％的物质富集期间产生的集合浓缩物的氯化焙烧，或最多15个天然浓缩物氯化物含量％。此后，将渣滓用王水浸出，贵金属通过吸附从纸浆中回收，氯化焙烧保持在600-700℃，贵金属利用稀释的水溶液从渣中浸出 -regia，然后通过吸附。由于使用氯化剂，工艺步骤数量的减少，焙烧温度的降低和稀酸浸出，该方法具有成本效益。

10. 发明申请

US20080236337A1 Method for recovering rhodium 失效
标题翻译：回收铑的方法
公开(公告)号：US20080236337A1
公开(公告)日：2008-10-02
申请号：US12068093
申请日：2008-02-01
申请人： Shoujirou Usui , Yoshio Ito
发明人： Shoujirou Usui , Yoshio Ito
IPC分类号： C22B61/00
CPC分类号： C22B11/04 , C22B3/0022 , C22B3/165 , C22B3/44 , C22B5/00 , C22B11/042 , C22B11/06 , Y02P10/214 , Y02P10/234
摘要： The present invention provides a method for recovering rhodium sponge in high yield from ammonium hexachloro rhodate solution. The method comprises adding formic acid to ammonium hexachloro rhodate solution to reduce the rhodate, recovering reduced rhodium as rhodium black, and calcining the rhodium black under hydrogen atmosphere without water-washing to obtain rhodium sponge.
摘要翻译：本发明提供了一种从六氯氢碘酸铵溶液中以高产率回收铑海绵的方法。该方法包括向六氯堇青石铵溶液中加入甲酸以还原罗丹明，回收铑作为铑黑还原铑，并在氢气氛下煅烧铑黑，无需水洗，得到铑海绵。

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