公开(公告)号：US3392094A

公开(公告)日：1968-07-09

申请号：US37180164

申请日：1964-06-01

申请人： COMINCO LTD

发明人： SETH GAUNCE FRANK

IPC分类号： C25C7/02

CPC分类号： C25C7/02

公开(公告)号：US3388967A

公开(公告)日：1968-06-18

申请号：US40749664

申请日：1964-10-29

申请人： COMINCO LTD COMINCO LTEE

发明人： MALLARADHYA RAMARADHYA JAKKANA

IPC分类号： C01B25/234

CPC分类号： C01B25/234

公开(公告)号：US3349471A

公开(公告)日：1967-10-31

申请号：US39914064

申请日：1964-09-25

申请人： SOUTHWIRE COMPANY INC ,  WESTERN ELECTRIC CO

发明人： BELL JOHN A ,  COFER DANIEL B ,  SORBER GILBERT E

IPC分类号： B21B3/00 ,  B22D11/06

CPC分类号： B21B3/003 ,  B21B2003/005 ,  B22D11/0602

公开(公告)号：US5709731A

公开(公告)日：1998-01-20

申请号：US676853

申请日：1996-07-08

申请人： William P. Armstrong

发明人： William P. Armstrong

IPC分类号： B65G53/30 ,  C22B1/00 ,  C22B3/04 ,  C22B3/08

CPC分类号： C22B1/00 ,  C22B3/04 ,  Y02P10/234

摘要： A method for concurrently transporting and leaching metal values from an ore or concentrate containing said metal values from an originating site such as an elevated site to a delivery site comprising the steps of crushing and/or grinding the ore or concentrate to form a particulate having a size range suitable for transport by gravity or a combination of pumping and gravity as a solid constituent in an aqueous slurry, forming an aqueous slurry of from about 30 to about 70 percent by weight of said particulate in an aqueous medium, and adjusting said aqueous slurry to contain an effective amount of a lixiviant for dissolution of said metal values into the aqueous medium. The aqueous slurry with lixiviant is transported in an elongated pipeline under a static pressure and for a residence time sufficient for dissolution of a substantial portion of the metal values, and the aqueous medium with the metal values is separated from the solids constituent of the slurry by a hydrocone, settling tank, thickener, lagoon, pond or heap, or counter-current decantation or washing circuit for recovery of values therefrom. The ore or concentrate may contain metal oxides, metal sulphides, native metal or a combination thereof, such as for example, a copper oxide concentrate or an ore, and the lixiviant may be sulphuric acid.

摘要翻译： 将来自含有所述金属值的矿石或浓缩物的金属值同时输送和浸出的方法，所述金属或浓缩物从起始位点如高架位置输送到输送位置，包括以下步骤：粉碎和/或研磨矿石或浓缩物以形成具有 尺寸范围适合于通过重力或泵送和重力的组合作为固体成分在水性浆料中的运输，在水性介质中形成约30至约70重量％的所述颗粒的水性浆料，并调节所述含水浆料 以含有有效量的用于将所述金属值溶解到水性介质中的浸渍剂。 具有浸渍剂的含水浆料在静态压力下在细长的管线中运输，并且足以溶解大部分金属值的停留时间，并且将金属值的水性介质与浆料的固体成分分离， 水龙头，沉淀池，增稠器，泻湖，池塘或堆，或用于从其中回收值的逆流倾析或洗涤回路。 矿石或浓缩物可以含有金属氧化物，金属硫化物，天然金属或其组合，例如氧化铜浓缩物或矿石，并且浸出剂可以是硫酸。

公开(公告)号：US5584978A

公开(公告)日：1996-12-17

申请号：US340890

申请日：1994-11-15

申请人： Richard Van Blaricom

发明人： Richard Van Blaricom

IPC分类号： G01N1/40 ,  G01N33/24 ,  G01V9/00 ,  G01N27/26

CPC分类号： G01N33/24 ,  G01V9/007 ,  G01N1/40

摘要： This invention relates to a novel geo-electrochemical sampling electrode and process. More specifically, this invention pertains to a novel ion collection electrode, and process, which can be used in the remote sampling of ions contained in ground water. This invention consists of a geo-electrochemical sampling apparatus comprising a hollow electrically non-conductive casing; an opening in the casing for enabling ions to be transported from the exterior of the casing to the interior of the casing, a cathode positioned in the interior of the casing, and electrically connected to the exterior of the casing; and, ion exchange resin contained in the interior of the casing between the cathode and the opening.

摘要翻译： 本发明涉及一种新型的地球电化学取样电极和工艺。 更具体地，本发明涉及一种新颖的离子收集电极和方法，其可用于远程取样包含在地下水中的离子。 本发明由包括中空的非导电外壳的地质电化学取样装置组成; 壳体中的开口，用于使离子能够从壳体的外部输送到壳体的内部;阴极，其位于壳体的内部，并电连接到壳体的外部; 以及包含在阴极和开口之间的壳体内部的离子交换树脂。

公开(公告)号：US5565168A

公开(公告)日：1996-10-15

申请号：US243676

申请日：1994-05-16

申请人： Thomas Steffens ,  Gary R. Adams

发明人： Thomas Steffens ,  Gary R. Adams

IPC分类号： C22C18/04

CPC分类号： C22C18/04

摘要： A zinc-aluminum casting alloy composed of 9 to 12% by weight aluminum, 0.6 to 1% by weight copper, 0.02 to 0.05% by weight magnesium, balance high-grade zinc. In order to improve the tribologocal properties of that material for use in sliding surface bearings, the material contains also 0.1 to 1.5% by weight silicon and has been made by continuous casting.

摘要翻译： 铝 - 铝铸造合金，其由9-12重量％的铝，0.6-1重量％的铜，0.02-0.05重量％的镁，平衡的高级锌组成。 为了提高用于滑动表面轴承的材料的摩擦学特性，该材料还含有0.1至1.5重量％的硅，并且通过连续铸造制成。

公开(公告)号：US5266423A

公开(公告)日：1993-11-30

申请号：US676033

申请日：1991-03-27

申请人： Jack Sklarchuk

发明人： Jack Sklarchuk

IPC分类号： H01M4/16 ,  H01M4/14 ,  H01M4/22

CPC分类号： H01M4/16 ,  Y10T29/49115

摘要： Lead-acid battery plates are made by preparing alloys of lead with at least one additive metal that can be leached with an acid or an alkali from the alloy leaving a porous permeable lead matrix. The additive metal must be evenly and finely dispersed in the lead. A number of additive metals can be used but the additive metal is preferably magnesium or zinc and magnesium, each in a preferred amount in the range of about 3 to 15% by weight. The lead alloy is prepared by casting, preferably by rapid solidification casting, and subsequently pulverizing the alloy. The resulting lead alloy particles are applied to a conventional lead alloy battery grid by pressing, causing the formation of a coherent plate of grid and alloy. The plate is subsequently leached in an alkali or an acid which causes the substantial removal of additive metal from the alloy leaving a coherent porous permeable layer of substantially lead as active material. The preferred leachant is sulfuric acid. Other leachants require careful removal of all traces from the lead matrix. The plates are used for both the positive and the negative plates. The negative plates are treated with an expander, preferably by vacuum impregnation. The positive and negative plates are assembled into a battery which is filled with electrolyte and charged. The fabrication time is reduced from 5 to 7 days for prior art batteries to about 1 to 2 days.

摘要翻译： 铅酸电池板通过制备铅与至少一种添加剂金属的合金制成，该添加剂金属可以从合金中浸出酸或碱，留下多孔可渗透的铅基质。 添加剂金属必须均匀且精细地分散在铅中。 可以使用多种添加金属，但添加金属优选为镁或锌和镁，其优选量为约3至15重量％。 铅合金通过铸造制备，优选通过快速固化铸造，随后粉碎合金。 所得到的铅合金颗粒通过压制施加到常规的铅合金电池网格，形成栅格和合金的相干板。 随后在碱或酸中浸出板，这导致从合金中显着除去添加剂金属，留下基本上为活性材料的粘着多孔渗透层。 优选的浸出剂是硫酸。 其他浸出剂需要仔细地从铅基质中除去所有痕迹。 这些板用于正极板和负极板。 负极板用膨胀机处理，优选通过真空浸渍处理。 将正极板和负极板组装成充满电解质并充电的电池。 现有技术的电池的制造时间从5天缩短至7天至约1至2天。

公开(公告)号：US5225054A

公开(公告)日：1993-07-06

申请号：US844097

申请日：1992-03-02

申请人： Daniel A. D. Boateng

发明人： Daniel A. D. Boateng

IPC分类号： C02F1/461 ,  C02F9/00

CPC分类号： C02F1/461 ,  C02F2101/18

摘要： Cyanide-containing solution is subjected to two-stage membrane electrolysis in units each comprising a cathode, an anode and one or more bipolar electrodes interspaced with cationic membranes defining alternating anode and cathode compartments containing anolyte and catholyte, respectively. Electrolysis causes generation of hydrogen cyanide in the recirculating first stage anolyte, and alkali metal hydroxide is formed in the recirculating first-stage catholyte. The hydrogen cyanide is stripped from the first stage anolyte and is subsequently absorbed in catholyte in an absorption unit for the recovery of alkali metal cyanide-containing solution. Partially cyanide-depleted first-stage anolyte is mixed with an amount of an alkali metal chloride and passed as second-stage anolyte through the second-stage unit for the generation of chlorine with destruction of residual cyanide in the anolyte and the formation of alkali metal hydroxide in the recirculating second-stage catholyte from which a portion is directed to the absorption. A substantially cyanide-free effluent is withdrawn from the circulating second-stage anolyte. To allow for the formation of solid precipitates in the anolyte of the membrane electrolysis stages, the width of the anode compartments may be increased to at least 5 mm. Electrolysis is carried out at current densities in the range of 20 A/m.sup. 2 to 350 A/m.sup.2 and at ambient temperatures.

摘要翻译： 含有氰化物的溶液以各自包含阴极，阳极和一个或多个双极电极的单元进行两级膜电解，所述双极电极分别与阳离子膜隔离，阳离子膜分别含有阳极电解液和阴极电解液的阳极和阴极室。 电解在再循环的第一级阳极电解液中产生氰化氢，在再循环的第一级阴极电解液中形成碱金属氢氧化物。 将氰化氢从第一级阳极电解液中剥离，随后在用于回收含碱金属氰化物的溶液的吸收单元中的阴极电解液中吸收。 将部分氰化物贫化的第一级阳极电解液与一定量的碱金属氯化物混合，并通过作为第二级阳极电解液的第二级阳极电解液通过第二级单元以产生氯，同时在阳极电解液中残留氰化物的破坏和碱金属的形成 再循环第二阶段阴极电解液中的氢氧化物，其中一部分被引导至吸收。 从循环的第二级阳极电解液中取出基本上无氰化物的流出物。 为了在膜电解阶段的阳极电解液中形成固体沉淀物，阳极室的宽度可以增加到至少5mm。 电解在20A / m 2至350A / m 2范围内的电流密度和环境温度下进行。

公开(公告)号：US5135652A

公开(公告)日：1992-08-04

申请号：US603065

申请日：1990-10-25

申请人： Daniel A. D. Boateng

发明人： Daniel A. D. Boateng

IPC分类号： C01G9/00

CPC分类号： C01G9/003 ,  Y10S75/961

摘要： Zinc is selectively extracted from zinc sulfate solutions that may also contain sulfuric acid and amounts of other metals with an organic extractant mixture containing both organic substituted phosphoric acid and organic substituted thiophosphinic acid. The phosphoric acids are preferably chosen from mono- and di-2-ethylhexylphosphoric acids and mixtures thereof, and the phosphinic acids are preferably chosen from bis- 2, 4, 4-trimethylpentyl mono- and dithiophosphinic acids. The use of an extractant mixture of the dithiophosphinic acid with mono- and di-2-ethylhexyl phosphoric acids or an extractant mixture of the dithiophosphinic acid with di-2-ethylhexylphosphoric acid is preferred. The pH during zinc extraction is controlled at a value in the range of about 1.3 to 5. Control of pH is carried out either by neutralization or by acid extraction with an organic amine-type extractant. The acid content of the feed solution may be reduced by neutralization or acid removal by dialysis. The solvent extraction of zinc or zinc and acid from feed solution may be carried out co-, counter- or cross-currently in one or more stages. The preferred extraction method is dualcircuit, side-by-side, simultaneous zinc and acid extraction. The use of the mixed extractant for zinc is more effective than extraction with the component extractants by themselves.

摘要翻译： 从硫酸锌溶液中选择性地提取锌，硫酸锌溶液还可以含有硫酸和其它金属与含有有机取代的磷酸和有机取代的硫代次膦酸的有机萃取剂混合物。 磷酸优选选自单 - 和二-2-乙基己基磷酸及其混合物，次膦酸优选选自双-2,4,4-三甲基戊基单 - 和二硫代次膦酸。 使用二硫代次膦酸与磷酸二-2-乙基己酯或二硫代次膦酸与二-2-乙基己基磷酸的萃取剂混合物的萃取剂混合物。 锌提取期间的pH控制在约1.3至5的范围内。pH的控制通过中和或通过有机胺型萃取剂的酸萃取来进行。 进料溶液的酸含量可以通过透析中和或酸去除来降低。 锌或锌和酸从进料溶液中的溶剂萃取可以在一个或多个阶段中共同，反向或交叉进行。 优选的提取方法是双电路，并排，同时锌和酸提取。 将混合萃取剂用于锌的用途比用组分萃取剂自身萃取更有效。

公开(公告)号：US5064538A

公开(公告)日：1991-11-12

申请号：US603053

申请日：1990-10-25

申请人： Daniel A. D. Boeteng

发明人： Daniel A. D. Boeteng

IPC分类号： B01D61/58 ,  C01B7/07 ,  C01B17/90 ,  C01B21/46

CPC分类号： B01D61/58 ,  C01B17/902 ,  C01B21/46 ,  C01B7/0706 ,  B01D61/243 ,  B01D61/422

摘要： A method for the recovery of acids from dilute aqueous acid solutions containing at least one metal cation such as Zn, Ca, Mg, Na, K, Mn, Al, Fe, Ni and Co comprises feeding solution to the dialyzate compartments of a dialysis unit. The dialyzate, substantially containing any metal cations, is removed from the process. The diffusate, containing the acid from the feed solution and being substantially free of metal cations, is fed into the dilute stream circulating through the diluate compartments of an electrodialysis unit. A portion of the circulating diluate is returned to the diffusate compartments of the dialysis unit. The concentration gradient of acid anions across the dialysis membranes is increased by adding a quantity of acid-receiving solution to the returned diluate portion. The feed rates of solutions to the compartments of the dialysis unit are at least double those in processes using only dialysis. A concentrate stream is recirculated through the concentrate compartments of the electrodialysis unit. The applied current causes an increase in the acid concentration in the concentrate. A portion of the concentrate is withdrawn as a concentrated acid product substantially free of metal cations. If desired, the acid concentration in the product is controlled by feeding a quantity of the diffusate from the dialysis into the circulating concentrate stream, as necessary. The dialysis is carried out at ambient temperatures up to 45.degree. C., and electrodialysis at from 0.degree. to 60.degree. C. and at 100 to 1000 A/m.sup.2.

摘要翻译： 从含有至少一种金属阳离子如Zn，Ca，Mg，Na，K，Mn，Al，Fe，Ni和Co的稀酸水溶液中回收酸的方法包括将溶液进料到透析单元的透析液室 。 基本上含有任何金属阳离子的透析液从该过程中除去。 将含有来自进料溶液中的酸并且基本上不含金属阳离子的扩散剂进料到循环通过电渗析装置的稀释室的稀释物流中。 循环稀释液的一部分返回到透析单元的扩散室。 透析膜上的酸性阴离子的浓度梯度通过向返回的稀释部分加入一定量的酸接收溶液来增加。 透析单元隔室的溶液的进料速率至少是使用透析的方法中的两倍。 浓缩物流通过电渗析装置的浓缩物室再循环。 所施加的电流导致浓缩物中酸浓度的增加。 将浓缩物的一部分作为基本上不含金属阳离子的浓缩酸产物取出。 如果需要，根据需要通过将一定量的扩散剂从透析进料到循环浓缩物流中来控制产物中的酸浓度。 透析在高达45℃的环境温度下进行，并且在0℃至60℃和100至1000A / m 2的电渗析下进行。