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17 条记录 (耗时 0.011 秒)

    CYANIDE RECOVERY FROM AQUEOUS ORE PROCESSING SOLUTIONS BY SOLVENT EXTRACTION
    1.
    发明公开
    CYANIDE RECOVERY FROM AQUEOUS ORE PROCESSING SOLUTIONS BY SOLVENT EXTRACTION 有权
    拆卸和氰化物对水溶液ERZAUFARBEITUNGSLÖSUNGEN的回收通过液 - 液萃取

    公开(公告)号：EP1165847A1

    公开(公告)日：2002-01-02

    申请号：EP00901429.1

    申请日：2000-01-21

    申请人： Placer Dome Inc.

    发明人： DREISINGER, David, Bruce

    IPC分类号： C22B11/08 ,  C22B3/38 ,  A62D3/00 ,  C02F1/26

    CPC分类号： C22B11/08 ,  C02F1/26 ,  C22B3/0043 ,  C22B3/0063 ,  Y02P10/234 ,  Y10S210/903 ,  Y10S210/904

    摘要： The invention provides a process for recovering hydrogen cyanide from an aqueous solution by extracting the hydrogen cyanide into an organic solvent phase. The organic solvent may comprise neutral organophosphorous compounds, such as compounds selected from the group consisting of alkyl or aryl substituted phosphates, phosphonates and phosphine oxides. In alternative embodiments the organophosphorous compound is tri-butyl phosphate, di-butyl-butyl-phosphonate or tri-alkyl phosphine oxides. The organic solvent may be diluted in an organic diluent, such as an aliphatic or kerosene-type diluent. Alternative dilutions may be used, such as 75 %, 50 % or 25 %. In some embodiments, the pH of the aqueous solution containing dissolved cyanide may be adjusted to between 2 and 8, or between 3 and 7, or between 4 and 6. The organic solvent may be contacted following extraction with a basic aqueous solution to strip cyanide from the organic solvent into a basic aqueous cyanide strip solution. The stripped organic solvent may then be returned to the loading process, to extract HCN from fresh aqueous solution. The aqueous solution is typically an aqueous ore processing waste solution, in paticular a gold ore cyamide reaching waste solution.

    EP0963451A4 -
    4.
    发明公开
    EP0963451A4 - 失效
    EP0963451A4 - Google专利

    公开(公告)号：EP0963451A4

    公开(公告)日：1999-12-15

    申请号：EP97926439

    申请日：1997-05-12

    IPC分类号： B01D11/04 ,  C09K3/00 ,  C22B3/04 ,  C22B3/06 ,  C22B3/10 ,  C22B3/16 ,  C22B3/20 ,  C22B3/30 ,  C22B3/38 ,  C22B7/00 ,  C22B15/00 ,  C22B25/00 ,  C22B30/00 ,  C22B30/02 ,  C22B30/06 ,  C25C1/12 ,  C25C1/18

    CPC分类号： C25C1/18 ,  C22B3/0017 ,  C22B3/0043 ,  C22B3/0063 ,  C22B3/10 ,  C22B7/006 ,  C22B13/045 ,  C22B15/0063 ,  C22B25/04 ,  C22B30/00 ,  C25C1/12 ,  Y02P10/234 ,  Y02P10/236

    摘要： A method is provided for the hydrometallurgical recovery of metal values from sources containing more than one metal of antimony, lead, copper, zinc, bismuth, tin, cadmium and other metals by leaching the metal containing source with a ferric fluoborate/fluroboric acid solution to provide a leachant metal containing solution. The leachant solution is contacted with specific organic extractants such as an organophosphoric acid ester, an alkyl salicylaldoxime and an amidobis(thiophosphoryl) compound in a series of extraction steps to separate metals based on the extractant used. The organic extractant solution is stripped of the extracted metal(s) and the metal(s) recovered. The remaining leach solution after extraction being either further treated to extract other metals or processed to provide metal values contained therein.

    摘要翻译： 提供了一种方法，用于通过用氟硼酸铁/氟硼酸溶液浸提含金属源来从含有多于一种锑，铅，铜，锌，铋，锡，镉和其它金属的金属的源的湿法冶金回收金属 提供包含浸出溶液的溶液。 在一系列萃取步骤中，浸出溶液与特定的有机萃取剂如有机磷酸酯，烷基水杨醛肟和酰胺基双（硫代磷酰基）化合物接触，以基于所用萃取剂分离金属。 将有机萃取剂溶液除去萃取的金属并回收金属。 提取后剩余的浸出溶液要么进一步处理以提取其他金属，要么进行处理以提供其中所含的金属价值。

    A method for neutralizing sulfuric acid containing zinc ion
    9.
    发明公开
    A method for neutralizing sulfuric acid containing zinc ion 失效
    一种使含有硫酸的锌中和的方法

    公开(公告)号：EP0356136A3

    公开(公告)日：1991-07-24

    申请号：EP89308336.0

    申请日：1989-08-16

    申请人： Solex Research Corporation of Japan

    发明人： Watanabe, Morio ,  Sei, Renpei

    IPC分类号： C22B3/26 ,  C01G9/00 ,  C01G49/00

    CPC分类号： C22B3/0063 ,  C01G9/003 ,  C01G49/0009 ,  C22B3/0009 ,  C22B3/0012 ,  C22B3/0018 ,  C22B3/0021 ,  C22B3/0024 ,  C22B3/0066 ,  C22B3/0067 ,  C22B3/0068 ,  C22B3/44 ,  C22B19/26 ,  Y02P10/234

    摘要： The invention relates to a method for neutralizing a sulfuric acid solution containing predominantly Zn ion. In the method of the invention at least one compound selected from chlorine-containing compounds of Na ion, K ion, Mg ion, Ca ion, and NH₄ ion in an amount at least chemically equivalent to SO₄ ion contained in the solution is added to the sulfuric acid solution. Then the sulfuric acid solution is brought into contact with an organic solvent composed of one or more species selected from oxygen-containing organic solvents and alkylamine organic solvents to extract Zn ion from the sulfuric acid solution as a chloride complex to the organic solvent. The sulfuric acid solution after extraction of Zn ion may be further treated by addition of an oxidizing agent or by an electrochemical means to convert Fe²⁺ into Fe³⁺ ion and brought into contact with a second organic solvent (B) composed of one or more species selected from oxygen-containing organic solvents and alkylamine organic solvents. In that manner Fe ion is extracted from the sulfuric acid solution as a second chloride complex to the second organic solvent (B).

    A method for neutralizing sulfuric acid containing zinc ion
    10.
    发明公开
    A method for neutralizing sulfuric acid containing zinc ion 失效
    Verfahren zur Neutralisierung zinkionenhaltigerSchwefelsäure。

    公开(公告)号：EP0356136A2

    公开(公告)日：1990-02-28

    申请号：EP89308336.0

    申请日：1989-08-16

    申请人： Solex Research Corporation of Japan

    发明人： Watanabe, Morio ,  Sei, Renpei

    IPC分类号： C22B3/26 ,  C01G9/00 ,  C01G49/00

    CPC分类号： C22B3/0063 ,  C01G9/003 ,  C01G49/0009 ,  C22B3/0009 ,  C22B3/0012 ,  C22B3/0018 ,  C22B3/0021 ,  C22B3/0024 ,  C22B3/0066 ,  C22B3/0067 ,  C22B3/0068 ,  C22B3/44 ,  C22B19/26 ,  Y02P10/234

    摘要： The invention relates to a method for neutralizing a sulfuric acid solution containing predominantly Zn ion. In the method of the invention at least one compound selected from chlorine-containing compounds of Na ion, K ion, Mg ion, Ca ion, and NH₄ ion in an amount at least chemically equivalent to SO₄ ion contained in the solution is added to the sulfuric acid solution. Then the sulfuric acid solution is brought into contact with an organic solvent composed of one or more species selected from oxygen-containing organic solvents and alkylamine organic solvents to extract Zn ion from the sulfuric acid solution as a chloride complex to the organic solvent. The sulfuric acid solution after extraction of Zn ion may be further treated by addition of an oxidizing agent or by an electrochemical means to convert Fe²⁺ into Fe³⁺ ion and brought into contact with a second organic solvent (B) composed of one or more species selected from oxygen-containing organic solvents and alkylamine organic solvents. In that manner Fe ion is extracted from the sulfuric acid solution as a second chloride complex to the second organic solvent (B).

    摘要翻译： 本发明涉及一种中和主要含Zn离子的硫酸溶液的方法。 在本发明的方法中，将至少一种选自Na离子，K离子，Mg离子，Ca离子和NH4离子的含氯化合物中的至少一种化合物中所含的化合物相当于溶液中所含的SO 4离子的化合物加入到 硫酸溶液。 然后使硫酸溶液与由含氧有机溶剂和烷基胺有机溶剂中的一种或多种物质组成的有机溶剂接触，以从氯化物络合物的硫酸溶液中提取Zn离子到有机溶剂。 Zn离子萃取后的硫酸溶液可以通过加入氧化剂或电化学方法进一步处理，以将Fe 2+转化成Fe 3+离子并与第二有机物接触 溶剂（B）由选自含氧有机溶剂和烷基胺有机溶剂中的一种或多种物质组成。 以这种方式，将铁离子作为第二氯化物络合物从硫酸溶液中萃取到第二有机溶剂（B）。