公开(公告)号：US20050112041A1

公开(公告)日：2005-05-26

申请号：US10719561

申请日：2003-11-21

申请人： Deane Horne ,  James Thornton

发明人： Deane Horne ,  James Thornton

IPC分类号： C01G9/00 ,  C01G9/02 ,  C01G11/00 ,  C01G13/00 ,  C22B7/00 ,  C22B7/02 ,  C22B17/00 ,  C22B19/00 ,  C22B19/30 ,  C22B19/34 ,  C22B43/00

CPC分类号： C22B19/34 ,  C01G9/02 ,  C01P2006/12 ,  C01P2006/80 ,  C22B7/006 ,  C22B7/02 ,  C22B19/30 ,  Y02P10/234

摘要： A method for producing higher purity zinc oxide by thermal treatment of the preprocessed material for a defined period of time.

摘要翻译： 一种通过对预处理材料进行规定时间的热处理来制造高纯度氧化锌的方法。

公开(公告)号：US20050066773A1

公开(公告)日：2005-03-31

申请号：US10483334

申请日：2002-07-10

申请人： Juris Harlamovs ,  Daniel Ashman ,  Jose Alberto Dominguez ,  Hector Lizama ,  Dilipkumar Makwana ,  Andrew Stradling

发明人： Juris Harlamovs ,  Daniel Ashman ,  Jose Alberto Dominguez ,  Hector Lizama ,  Dilipkumar Makwana ,  Andrew Stradling

IPC分类号： C22B3/18 ,  C22B19/00

CPC分类号： C22B3/18 ,  C22B19/22 ,  C22B19/26 ,  Y02P10/234

摘要： A method of extracting zinc from a sulphidic ore is provided which comprises bioleaching the ore in a heap with acidophilic microorganisms to produce a pregnant leach solution which is recovered from the bottom of the heap. An integrated process which comprises subjecting the pregnant leach solution to neutralization and solvent extraction to produce a concentrated zinc solution is also provided. Zinc may be recovered from the concentrated solution by means of electrowinning, either in the absence or presence of manganese. Alternatively zinc may be recovered in the form of a zinc compound.

摘要翻译： 提供了一种从硫化矿石中提取锌的方法，其中包括用酸性微生物将矿石浸入堆中生成从堆的底部回收的怀孕浸出溶液。 还提供了一种综合方法，其包括使怀孕的浸出溶液进行中和和溶剂萃取以产生浓缩的锌溶液。 锌可以在不存在或存在锰的情况下通过电解提取从浓缩溶液中回收。 或者锌可以以锌化合物的形式回收。

公开(公告)号：US6103204A

公开(公告)日：2000-08-15

申请号：US989180

申请日：1997-12-11

申请人： Hector M. Lizama ,  Robert G. Frew ,  Cherian C. Abraham

发明人： Hector M. Lizama ,  Robert G. Frew ,  Cherian C. Abraham

IPC分类号： C01G9/00 ,  C22B3/18 ,  C22B19/00

CPC分类号： C01G9/00 ,  C22B19/22 ,  C22B3/18 ,  Y02P10/234

摘要： A method of selectively leaching zinc from a source material containing zinc in sulphide form and iron, comprises the steps of subjecting the source material to bioleaching with a strict sulphur oxidizing micro organism or a mixed culture of sulphur oxidizing and iron oxidizing micro organisms, in the presence of a nutrient solution containing less than about 15 mg/L phosphate ions. In another embodiment, the source material is in the form of a slurry having a solids concentration of at least about 25% on a weight per volume basis and a nutrient solution containing from about 1 mg/L to less than about 100 mg/L ammonium ions, from about 0.5 mg/L to less than about 40 mg/L magnesium ions and from about 2 mg/L to less than about 60 mg/L phosphate ions.

摘要翻译： 从含有硫化锌和铁的锌的源材料中选择性浸出锌的方法包括以下步骤：用严格的硫氧化微生物或硫氧化和氧化铁微生物的混合培养物对源材进行生物浸出， 含有少于约15mg / L磷酸根离子的营养液的存在。 在另一个实施方案中，源材料为浆料形式，其固体浓度为每体积重量至少约25％，含有约1mg / L至小于约100mg / L铵的营养液 离子，约0.5mg / L至小于约40mg / L的镁离子和约2mg / L至小于约60mg / L的磷酸根离子。

公开(公告)号：US5770170A

公开(公告)日：1998-06-23

申请号：US700143

申请日：1996-08-20

申请人： Michael J. Collins ,  Donald K. Kofluk

发明人： Michael J. Collins ,  Donald K. Kofluk

IPC分类号： B03D1/00 ,  C22B3/08 ,  C22B3/00 ,  C22B19/00

CPC分类号： C22B3/08 ,  C22B13/04 ,  C22B19/22 ,  Y02P10/234

摘要： There is provided a novel class of additives, specifically coals, which are useful in zinc extraction processes involving one or more pressure leach stages carried out at temperatures above the melting point of sulphur. Such processes may include those incorporating a single stage pressure leach, a process involving two stage countercurrent or cocurrent pressure leaches or a multistage leach process for recovering zinc, lead and silver from zinc bearing sulphidic materials which also contain lead and silver.

摘要翻译： 提供了一类新的添加剂，特别是煤，其可用于锌提取过程，其涉及在高于硫的熔点的温度下进行的一个或多个压力浸出阶段。 这些方法可以包括那些结合单级压力浸出，涉及两级逆流或并流压力浸出的方法，或用于从含有铅和银的含锌硫化物材料中回收锌，铅和银的多级浸出方法。

公开(公告)号：US5650057A

公开(公告)日：1997-07-22

申请号：US488128

申请日：1995-06-07

申请人： David L. Jones

发明人： David L. Jones

IPC分类号： C22B3/04 ,  B01D11/00 ,  B01D11/02 ,  C01G1/00 ,  C22B1/00 ,  C22B3/00 ,  C22B3/06 ,  C22B3/08 ,  C22B3/10 ,  C22B3/14 ,  C22B3/20 ,  C22B3/24 ,  C22B3/26 ,  C22B3/38 ,  C22B3/42 ,  C22B3/44 ,  C22B11/00 ,  C22B15/00 ,  C22B19/00 ,  C22B23/00 ,  C25C1/00 ,  C25C1/08

CPC分类号： C22B3/10 ,  C22B11/00 ,  C22B15/0067 ,  C22B15/0069 ,  C22B15/0071 ,  C22B15/0084 ,  C22B15/0089 ,  C22B19/22 ,  C22B19/26 ,  C22B23/0415 ,  C22B23/0423 ,  C22B23/043 ,  C22B23/0453 ,  C22B3/0005 ,  C22B3/0066 ,  C22B3/06 ,  C22B3/08 ,  C22B3/20 ,  C22B3/42 ,  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, nickel and cobalt. During pressure oxidation the metal may be precipitated as an insoluble basic salt, such as basic copper sulphate, or substantially completely solubilized and precipitated later as the basic metal salt.

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如锌，镍和钴。 在压力氧化期间，金属可以沉淀为不溶性碱性盐，例如碱式硫酸铜，或者基本上完全溶解并沉淀为碱性金属盐。

公开(公告)号：US5192418A

公开(公告)日：1993-03-09

申请号：US726931

申请日：1991-07-08

申请人： Charles R. Hughes ,  Stewart T. Herman ,  Richard N. Steinbicker

发明人： Charles R. Hughes ,  Stewart T. Herman ,  Richard N. Steinbicker

IPC分类号： C22B19/00 ,  C22B23/00 ,  C25D21/18 ,  C25D21/22

CPC分类号： C25D21/18 ,  C25D21/22 ,  Y10S204/13 ,  Y10S210/912 ,  Y10S210/919

摘要： The present invention relates to a method of completely recovering nickel and zinc metal from multiple plating process waste streams by first separating the waste streams into a clean, relatively constant flow and/or concentration fraction and a dirty, variable flow and/or concentration fraction. Metal is recovered from the clean fraction by ion-exchange so as to concentrate the extracted metals for direct return to the plating bath. The effluent from the ion-exchange step is then blended with the dirty, variable flow and concentration fraction. This blended flow is first neutralized and then precipitated in a two-stage process using a sodium hydroxide solution. The resultant slurry containing the metal precipitate is filtered to yield a filter cake containing recovered nickel and zinc. This filter cake can then be further processed to recover the metal for reintroduction into the plating bath or for other uses.

摘要翻译： 本发明涉及通过首先将废物流分离成干净，相对恒定的流量和/或浓度部分和脏的，可变的流动和/或浓度部分，从多个电镀工艺废料流中完全回收镍和锌的金属的方法。 通过离子交换从清洁部分回收金属，以便将提取的金属集中以直接返回到电镀浴。 然后将离子交换步骤的流出物与脏的，可变的流量和浓度级分混合。 首先中和该混合流，然后使用氢氧化钠溶液在两步法中沉淀。 将含有金属沉淀物的所得浆料过滤，得到含有回收的镍和锌的滤饼。 然后可以进一步处理该滤饼以回收金属以重新引入电镀槽或用于其它用途。

公开(公告)号：US4877517A

公开(公告)日：1989-10-31

申请号：US188949

申请日：1988-05-02

申请人： Srdjan Bulatovic ,  Tim M. Jessup

发明人： Srdjan Bulatovic ,  Tim M. Jessup

IPC分类号： B03D1/001 ,  B03D1/012 ,  B03D1/016 ,  B03D1/06 ,  C08B31/00 ,  C08F251/00 ,  C08F281/00 ,  C22B9/10 ,  C22B15/00 ,  C22B19/00 ,  C22B23/00

CPC分类号： C08F251/00 ,  B03D1/016 ,  B03D1/06 ,  C08B31/00 ,  C08F281/00 ,  B03D1/01 ,  B03D1/012 ,  B03D2201/06 ,  B03D2203/02

摘要： A new depressant for use in enhanced separation of polymetallic sulphides is described. The depressant agent is used in conjunction with conventional collector agents and frothing agents in the flotation separation of copper, nickel, lead, zinc sulphides by depressing iron sulphides such as pyrrhotite, pyrite and marcasite in the tailing. The depressant consists of a cross-linked starch chemically combined with a polyacrylate and sugar free lignin sulphonate.

摘要翻译： 描述了用于增强多金属硫化物分离的新型抑制剂。 在尾矿中通过抑制硫黄铁矿如黄铁矿，黄铁矿和马赛克等硫化铁在浮选分离铜，镍，铅，硫化锌中与常规的收集剂和发泡剂结合使用。 抑制剂由与聚丙烯酸酯和无糖的木质素磺酸盐化学结合的交联淀粉组成。

公开(公告)号：US4789446A

公开(公告)日：1988-12-06

申请号：US101714

申请日：1987-09-28

申请人： Adolf Von Ropenack ,  Winfried Bohmer ,  Gunter Smykalla ,  Volker Wiegand

发明人： Adolf Von Ropenack ,  Winfried Bohmer ,  Gunter Smykalla ,  Volker Wiegand

IPC分类号： C22B7/00 ,  C22B3/00 ,  C22B3/04 ,  C22B3/08 ,  C22B3/44 ,  C22B7/02 ,  C22B15/00 ,  C22B19/00 ,  C22B19/20 ,  C22B19/30 ,  C22B21/00 ,  C22B41/00 ,  C22B58/00 ,  C25C20060101 ,  C25C1/14 ,  C25C1/16 ,  C25D1/16

CPC分类号： C22B19/22 ,  Y02P10/234

摘要： In conjunction with an electrolytic production of zinc, the residues are processed so that the residue is leached with cell acid at a temperature from 50.degree. to 100.degree. C. in such a manner that a concentration of free acid from 10 to 100 g/l is obtained at the end of the leaching. The undissolved matter is separated from the suspension, the separated matter is supplied to the acid leaching step performed in the electrolytic production of zinc, and fine-grained metallic iron is added to the solution from which the undissolved matter has been removed so that copper is precipitated. The precipitated copper is separated and the liquid phase from which the precipitated copper has been separated is supplied to one of the stages which precede the precipitation of iron in the electrolytic production of zinc.

摘要翻译： 结合锌的电解生产，处理残余物，使得残余物在50℃至100℃的温度下以细胞酸浸出，使得游离酸的浓度为10至100g / l 在浸出结束时获得。 将未溶解​​的物质与悬浮液分离，将分离的物质供给到在​​电解生产锌中进行的酸浸出步骤，并且将细粒金属铁加入到其中去除未溶解物质的溶液中，使得铜为 沉淀 将析出的铜分离，将析出的铜分离出的液相供给到在电解生产锌中铁析出之前的一个阶段。

公开(公告)号：US4681535A

公开(公告)日：1987-07-21

申请号：US856924

申请日：1986-04-28

申请人： Osamu Kobari ,  Takashi Kida

发明人： Osamu Kobari ,  Takashi Kida

IPC分类号： C22B19/00 ,  C22B21/00 ,  F27B1/02 ,  F27B3/04 ,  F27B3/18 ,  F27D13/00 ,  F27D17/00 ,  F27D19/00 ,  F27D99/00

CPC分类号： C22B19/00 ,  C22B21/0084 ,  F27B1/025 ,  F27B3/18 ,  F27D13/00 ,  F27D17/004 ,  F27D19/00 ,  F27B3/045 ,  F27D2099/0055

摘要： A preheating mechanism for preheating a source metal for melt includes a combination of independent combustion and preheating devices. The mechanism also includes a high-temperature gas conduit for connecting the combustion device and the preheating device, a low-temperature gas conduit for connecting the preheating device and an exhaust gas chimney, a branch pipe branched from the low-temperature gas conduit and connected to the high-temperature gas conduit, and a short-cut gas conduit for connecting a conduit portion at a combustion device side from a coupling portion between the high-temperature gas conduit and the branch pipe to a conduit portion at an exhaust gas chimney side from a branch portion between the low-temperature gas conduit and the branch pipe. A diluting mechanism is arranged in the short-cut gas conduit. A valve with a variable motor is arranged in the branch pipe. A temperature sensor is arranged between the preheating device and the coupling portion between the high-temperature gas conduit and the branch pipe. The valve controls gas flow in the branch pipe in response to a signal from the temperature sensor.

摘要翻译： 用于预热熔融源金属的预热机构包括独立燃烧和预热装置的组合。 该机构还包括用于连接燃烧装置和预热装置的高温气体导管，用于连接预热装置和废气烟囱的低温气体导管，从低温气体导管分支的支管， 以及用于将燃烧装置侧的导管部分与高温气体导管与支管之间的连接部分连接到废气烟囱侧的导管部分的短切气体导管 从低温气体导管和分支管之间的分支部分。 在短切气体导管中设置有稀释机构。 具有可变电动机的阀布置在分支管中。 温度传感器设置在预热装置和高温气体导管与分支管之间的联接部分之间。 该阀根据来自温度传感器的信号控制分支管中的气流。

公开(公告)号：US4670230A

公开(公告)日：1987-06-02

申请号：US757610

申请日：1985-07-22

申请人： Morio Watanabe ,  Sanji Nishimura

发明人： Morio Watanabe ,  Sanji Nishimura

IPC分类号： C01G9/00 ,  C01G49/00 ,  C22B3/16 ,  C22B3/32 ,  C22B3/38 ,  C22B19/00 ,  C23G1/36 ,  C01G11/00 ,  C01G21/00

CPC分类号： C22B3/1633 ,  C01G49/0009 ,  C22B19/26 ,  C22B3/0024 ,  C22B3/0066 ,  C22B3/0067 ,  C22B3/0068 ,  C22B3/007 ,  C22B3/0071 ,  C22B3/0077 ,  C22B3/0087 ,  C22B3/0089 ,  C22B3/009 ,  C22B3/0091 ,  C22B3/0093 ,  Y02P10/234

摘要： A process for selectively stripping and separating iron ions from an organic solvent (A) which comprises bringing the organic solvent (A) containing iron and zinc ions, and containing one or more compounds selected from the group consisting of alkyl phosphoric acid, alkyl-aryl phosphoric acid, alkyl thio phosphoric acid and alkyl-aryl thio phosphoric acid together with a petroleum hydrocarbon as a diluent, into contact with an aqueous solution containing NH.sub.4.sup.+ and F.sup.- ions so as to selectively strip the iron ions into the aqueous solution despite the coexistence of zinc ions.

摘要翻译： 选择性地从有机溶剂（A）中剥离和分离铁离子的方法，其包括使含有铁和锌离子的有机溶剂（A）含有一种或多种选自烷基磷酸，烷基 - 芳基 磷酸，烷基硫代磷酸和烷基 - 芳基硫代磷酸与石油烃作为稀释剂与含有NH 4 +和F-离子的水溶液接触，以便选择性地将铁离子剥离到水溶液中，尽管共存 的锌离子。