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51. 发明授权

US4654200A Processes for extracting radium from uranium mill tailings 失效
标题翻译：从铀矿尾矿中提取镭的工艺
公开(公告)号：US4654200A
公开(公告)日：1987-03-31
申请号：US616024
申请日：1984-06-01
申请人： Inderjit Nirdosh , Malcolm H. Baird , Sirugamani V. Muthuswami
发明人： Inderjit Nirdosh , Malcolm H. Baird , Sirugamani V. Muthuswami
IPC分类号： C01F13/00 , C22B3/16 , C22B60/00 , C01F15/00
CPC分类号： C01F13/00 , C22B3/16 , C22B3/165 , C22B60/00 , Y02P10/234
摘要： The removal of radium from acid-leached uranium mill tailings has been difficult due to its strong retention as mixed sulfates and in adsorbed forms. With this invention the leaching action of a complexing agent (reducing the free radium cation concentration in solution) is combined with that of a reducing agent. Thus, high valency metal hydroxides and basic salts (notably Fe.sup.3+) which tend to retain radium are converted to the lower valency form which is much more soluble in the complexing agent. The reducing agent employed is sodium hydrosulfite, in combination with various organic complexing agents; the preferred complexing agent is EDTA. Over 90% of the radium in uranium leach tailings from Elliot Lake can be removed in 1 hour contact at room temperature with a solution comprising 0.04M of both sodium hydrosulfite and EDTA, with 1.0M potassium chloride added as a surface charge depressant. The gradual addition of the solids to liquid permits the use of low liquid/solid ratios.
摘要翻译：由于其作为混合硫酸盐和吸附形式的强残留作用，从酸浸铀矿尾矿中除去镭是困难的。利用本发明，络合剂的浸出作用（将溶液中的游离镭阳离子浓度降低）与还原剂的浸出作用相结合。因此，倾向于保留镭的高价金属氢氧化物和碱式盐（特别是Fe 3+）转化为在络合剂中更易溶解的较低价态。所用还原剂是连二亚硫酸钠，与各种有机络合剂组合; 优选的络合剂是EDTA。来自埃利奥特湖的铀浓缩铀尾矿中镭的超过90％可以在室温下用包含0.04M的连二亚硫酸钠和EDTA的溶液在1小时接触中除去，加入1.0M氯化钾作为表面减阻剂。将固体逐渐添加到液体中允许使用低液/固比。

52. 发明授权

US4637865A Process for metal recovery and compositions useful therein 失效
标题翻译：金属回收方法及其中有用的组合物
公开(公告)号：US4637865A
公开(公告)日：1987-01-20
申请号：US766833
申请日：1985-08-16
申请人： Rodney H. Sergent , Kenneth N. Thanstrom
发明人： Rodney H. Sergent , Kenneth N. Thanstrom
IPC分类号： C22B3/16 , C22B11/00 , C25C1/00 , C25C1/20
CPC分类号： C25C1/20 , C22B3/1666 , C25C1/00 , Y02P10/234
摘要： A process for extracting a precious metal or base metal from a source material containing the metal. The process comprises contacting the source material with an aqueous leaching solution containing a leaching agent comprising an N-halohydantoin compound, thereby producing an aqueous leachate containing said metal. Aqueous leaching compositions, and novel electrowinning and other electrodeposition processes are also disclosed.
摘要翻译：一种从含有金属的源材料中提取贵金属或贱金属的方法。该方法包括使源材料与含有N-卤代乙内酰脲化合物的浸出剂的含水浸出溶液接触，从而产生含有所述金属的含水浸出液。还公开了水性浸出组合物，以及新的电沉积和其它电沉积方法。

53. 发明授权

US4557760A Process for recovering noble metals belonging to group VIII of the Periodic System of the elements from a contaminated catalyst solution originating from the carbonylation of methyl acetate and/or dimethylether 失效
标题翻译：从源于乙酸甲酯和/或二甲醚的羰基化的污染的催化剂溶液中回收属于元素周期系第VIII族的贵金属的方法
公开(公告)号：US4557760A
公开(公告)日：1985-12-10
申请号：US614480
申请日：1984-05-29
申请人： Heinz Erpenbach , Klaus Gehrmann , Winfried Lork , Peter Prinz
发明人： Heinz Erpenbach , Klaus Gehrmann , Winfried Lork , Peter Prinz
IPC分类号： C07C27/00 , B01J31/40 , C01G55/00 , C07C21/00 , C07C51/12 , C07C51/42 , C07C51/54 , C07C67/00 , C22B3/16 , C22B3/26 , C22B5/20 , C22B11/00
CPC分类号： B01J31/4046 , B01J31/0239 , B01J31/0268 , B01J31/04 , B01J31/20 , B01J31/26 , B01J31/4038 , C22B11/04 , C22B3/0018 , C22B5/20 , B01J2231/34 , B01J2531/82 , B01J2531/822 , B01J31/0201 , Y02P10/234
摘要： In this process for recovering noble metals of group VIII from a contaminated catalyst solution originating from the carbonylation of methyl acetate and/or dimethylether (the catalyst solution containing carbonyl complexes of these noble metals, organic or inorganic promoters, undistillable organic contaminants as well as volatiles) the volatiles are distillatively removed from the catalyst solution and the remaining distillation residue is water-treated, whereby the noble metal/carbonyl-complex is precipitated together with the organic contaminants and is separated from the aqueous phase, while the promotor is dissolved and recovered in conventional manner. The noble metals are then set free in elemental form by subjecting the noble metal/carbonyl-complex separated and contaminated with organic polymers at temperatures of 150.degree. to 300.degree. C. to treatment with an ethyleneglycoldialkylether solvent of the formula R(--OCH.sub.2 --CH.sub.2).sub.n --OR, in which n stands for a number of from 1 to 4 and R stands for identical or different alkyl groups having from 1 to 6 carbon atoms. The noble metal can then be recovered by filtration, and the solvent can be freed of organic contaminants by distillation.
摘要翻译：在用于从源自乙酸甲酯和/或二甲醚的羰基化的污染的催化剂溶液（含有这些贵金属的羰基络合物的催化剂溶液，有机或无机促进剂，不可挥发的有机污染物以及挥发物）中回收第VIII族的贵金属的方法中）将挥发物从催化剂溶液中蒸馏除去，剩余的蒸馏残余物进行水处理，由此贵金属/羰基络合物与有机污染物一起沉淀并与水相分离，同时促进剂被溶解和回收以常规方式。然后通过使贵金属/羰基络合物在150℃至300℃的温度下用有机聚合物分离和污染来将贵金属自由化，以用式R（-OCH 2 -CH 2）的乙二醇缩酮基醚溶剂）n-OR，其中n表示1至4的数，R表示具有1至6个碳原子的相同或不同的烷基。然后可以通过过滤回收贵金属，并且溶剂可以通过蒸馏而除去有机污染物。

54. 发明授权

US4434241A Catalyst recovery process from tar from carbonylation reactions 失效
标题翻译：来自羰基化反应的焦油的催化剂回收过程
公开(公告)号：US4434241A
公开(公告)日：1984-02-28
申请号：US424727
申请日：1982-09-27
申请人： Thomas H. Larkins, Jr.
发明人： Thomas H. Larkins, Jr.
IPC分类号： B01J31/40 , C01B7/13 , C07C51/573 , C22B3/16 , C22B7/00 , C22B26/12 , B01J23/96 , B01J27/32 , C07C51/12
CPC分类号： B01J31/26 , B01J31/20 , B01J31/4046 , B01J31/4092 , C01B7/13 , C07C51/573 , C22B11/04 , C22B26/12 , C22B3/165 , C22B7/007 , B01J2231/34 , B01J23/464 , B01J2531/822 , Y02P10/234 , Y02P20/584
摘要： The present invention provides a process for the recovery of rhodium, lithium, and iodine values from tar which is generated during carbonylation reactions. The process comprises sequentially extracting the tar with water and then leaching the remaining tar with acetic acid, burning the resulting residue, and recycling the resulting rhodium-enriched residue to the reaction process. Preferably, the process further comprises the recovery of iodine values by the incineration of the acetic acid leachate and treatment of the off-gas with aqueous alkali hydroxide. Lithium values are recovered by evaporating water from the aqueous phase of the water extraction step and recycling the resulting residue to the reaction process.
摘要翻译：本发明提供从羰基化反应中产生的焦油回收铑，锂和碘值的方法。该方法包括用水顺序提取焦油，然后用乙酸浸出剩余的焦油，燃烧所得残余物，并将所得的富含铑的残余物再循环到反应过程中。优选地，该方法还包括通过焚烧乙酸浸出液回收碘值，并用碱性氢氧化碱水溶液处理废气。通过从水提取步骤的水相中蒸发水来回收锂值，并将所得残余物再循环到反应过程中。

55. 发明授权

US4349380A Method of recovering metals from metal containing materials 失效
标题翻译：从含金属材料中回收金属的方法
公开(公告)号：US4349380A
公开(公告)日：1982-09-14
申请号：US250009
申请日：1981-04-01
申请人： Louis L. Pytlewski , Kenneth Krevitz
发明人： Louis L. Pytlewski , Kenneth Krevitz
IPC分类号： C22B3/16 , C22B7/00 , C22B11/04 , C22B15/12 , C22B23/04
CPC分类号： C22B3/16 , C22B7/006 , Y02P10/234
摘要： Valuable metals are recovered from metal-containing materials, such as scrap or waste materials, in which the metal is present in chemically combined form, by a process which comprises contacting the metal-containing material with a reagent comprising the product of the reaction of an alkali metal or alkali metal hydroxide with a polyglycol or a polyglycol monoalkyl ether and oxygen.
摘要翻译：有价值金属从包含金属的材料（例如废料或废料）中回收，其中金属以化学结合的形式存在，包括使含金属材料与包含以下物质的反应产物接触的方法：碱金属或碱金属氢氧化物与聚二醇或聚乙二醇单烷基醚和氧气。

56. 发明授权

US4257881A Process for beneficiating oxide ores 失效
标题翻译：有利于氧化矿石的工艺
公开(公告)号：US4257881A
公开(公告)日：1981-03-24
申请号：US921583
申请日：1978-07-03
申请人： James K. Kindig , Ronald L. Turner
发明人： James K. Kindig , Ronald L. Turner
IPC分类号： B03C1/015 , C22B1/00 , C22B1/11 , C22B3/16 , C22B3/26
CPC分类号： C22B3/1658 , B03C1/015 , C22B1/00 , C22B1/11 , C22B3/0018 , C22B3/0021 , C22B3/16 , C22B3/1641 , Y02P10/234
摘要： One or more mineral values of metal oxide ores selected from the group consisting of bauxite, taconite, apatite, titanium oxides and the metal oxides of Groups, IIIB, IVB, VB VIB, VIIB, VIIIB, IB, IIB and IVA are beneficiated by treating the ore with a metal containing compound under conditions such as to selectively enhance the magnetic susceptibility of the mineral values to the exclusion of the gangue in order to permit a physical separation between the values and gague.
摘要翻译：选自铝土矿，铁土矿，磷灰石，氧化钛和IIIB，IVB，VBVIB，VIIB，VIIIB，IB，IIB和IVA族金属氧化物的金属氧化物矿石的一种或多种矿物值通过处理在含有金属的化合物的矿石的条件下，选择性地提高矿物值的磁化率以排除ang石，以便允许物理上的价值和凝结之间的分离。

57. 发明授权

US3979207A Refining of noble group metals 失效
标题翻译：精炼贵族族金属
公开(公告)号：US3979207A
公开(公告)日：1976-09-07
申请号：US531371
申请日：1974-12-10
申请人： John James MacGregor
发明人： John James MacGregor
IPC分类号： C01G55/00 , C22B3/16 , C22B3/26 , C22B3/28 , C22B3/32 , C22B11/00 , C22B11/04
CPC分类号： C01G55/001 , C22B11/04 , C22B3/0009 , C22B3/0012 , C22B3/0016 , C22B3/0021 , C22B3/0024 , C22B3/0025 , Y02P10/234
摘要： This invention relates to the separation and purification of platinum group metals and, in particular to the separation of mixtures of rhodium, platinum and irridium. According to one specific form of the invention, the platinum, rhodium and iridium are present as salts in aqueous solution and the separation and purification is accomplished byA. adjusting the pH, as necessary, to provide an acidic solution;B. contacting the acidic solution with an oxidizing agent sufficient to effect the oxidation of all irridium to Ir(IV);c. contacting the oxidized solution with a nitrogen-containing organic compound selected from the group consisting of secondary amines, tertiary amines and quaternary ammonium compounds; andD. removing from contact with the oxidized solution an organic phase containing substantially all of the platinum and iridium present in association with the nitrogen-containing organic compound used in step (c).
摘要翻译：本发明涉及铂族金属的分离和纯化，特别涉及铑，铂和铱的混合物的分离。根据本发明的一个具体形式，铂，铑和铱以水溶液的形式存在，并且分离和纯化通过A.根据需要调节PH以提供酸性溶液; B.将酸性溶液与氧化剂有关，以便将所有IRRIDI氧化成Ir（IV）; C。使氧化的溶液与选自仲胺，叔胺和季铵化合物的含氮有机化合物接触; 以及D.与氧化溶液接触时，与步骤（C）中使用的含氮有机化合物联合，与氧化溶液接触的有机相主要包含所有的铂和碘化物。

58. 发明授权

US2927004A Preparation of pure silicon or germanium from their alkyls 失效
标题翻译：从其烷基制备纯硅或锗
公开(公告)号：US2927004A
公开(公告)日：1960-03-01
申请号：US51231355
申请日：1955-05-31
申请人： BJORKSTEN RES LAB INC
发明人： GIRARDOT PETER R
IPC分类号： C01B33/027 , C22B3/16
CPC分类号： C01B33/027 , C22B3/1683 , Y02P10/234 , Y10S420/903

59. 发明公开

US20240274913A1 METHOD FOR RECOVERING WASTE LITHIUM COBALT OXIDE BATTERY 审中-公开
公开(公告)号：US20240274913A1
公开(公告)日：2024-08-15
申请号：US18559058
申请日：2022-08-24
申请人： GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD. , HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD. , YICHANG BRUNP CONTEMPORARY AMPEREX CO., LTD.
发明人： Yingsheng ZHONG , Haijun YU , Yinghao XIE , Aixia LI , Bo LI , Changdong LI
IPC分类号： H01M10/54 , C22B1/248 , C22B3/00 , C22B3/08 , C22B3/16 , C22B3/22 , C22B7/00 , C22B15/00 , C22B21/00 , C22B26/12
CPC分类号： H01M10/54 , C22B1/248 , C22B3/08 , C22B3/165 , C22B3/22 , C22B7/007 , C22B15/0004 , C22B15/0071 , C22B15/0089 , C22B21/0007 , C22B21/0023 , C22B23/043 , C22B23/0453 , C22B26/12
摘要： Disclosed is a method for recovering a waste lithium cobalt oxide battery, the method comprising: feeding a lithium cobalt oxide battery black powder in a column-shaped container, adding a first acid to the column-shaped container for heat leaching until solids in the column-shaped container are not reduced any more so as to obtain a first leachate and leaching residues, wherein the first acid is a weak acid, and a filtering structure is arranged at the bottom of the column-shaped container; and adding a second acid to the column-shaped container containing the leaching residues for heat leaching until solids in the column-shaped container are not reduced any more so as to obtain a second leachate and graphite, wherein the second acid is a strong acid. According to the present invention, consumption of an inorganic strong acid can be reduced, emission of strong acid gas is reduced, and green and low-carbon heat leaching of the black powder is achieved.

60. 发明授权

US11920212B2 Method for dissolving metals by photocatalysis 有权
公开(公告)号：US11920212B2
公开(公告)日：2024-03-05
申请号：US17042775
申请日：2019-10-10
申请人： Shanghai Normal University
发明人： Zhenfeng Bian , Yao Chen , Mengjiao Xu , Lili Lin , Jieya Wen , Yu Wan , Li Liu , Hexing Li
IPC分类号： C22B3/16 , B01J21/06 , B01J35/00
CPC分类号： C22B3/16 , B01J21/063 , B01J35/004
摘要： The present invention relates to a method for dissolving metals by photocatalysis. A metal-containing material to be dissolved is dispersed in a mixed solution of photocatalyst-containing cyanide and organic chloride; then, a photocatalyst is added; next, an oxygen-containing gas or a substance which is capable of generating oxygen is introduced; and irradiation is applied for a period of time to dissolve metals. Compared with the prior method, the present invention is advantageous in moderate reaction condition, energy conservation, environmental protection, low cost, and convenient operation, and is suitable for mass industrial treatment on metal dissolution.

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