• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An improved process for the recovery of precious metal values is disclosed. By this process precious metals in the form of anionic complexes are contacted with a weak-base anion exchange resin capable of complexing with the anionic complex. Such weak-base anion exchange resins contain weak-base functionalities derived from linear or cyclic polyaminoalkylene amines which have more than 1 amine moiety and at least 3 carbon atoms in a 1,X-alkylene moiety or moieties separating at least 1 amine moiety from a second amine moiety (i.e., X is an integer greater than 2).
    公开号:SU1715198A3
    申请号:SU874203746
    申请日:1987-11-16
    公开日:1992-02-23
    发明作者:И.Гаррис Вилльям；Р.Сталбуш Джеймс
    申请人:Дзе Дау Кемикал Компани (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to colored metaurgy. specifically to sorption processes for the recovery of noble metals from solutions, and can be used to isolate gold from cyanide solutions.
    The purpose of the invention is to increase the degree of gold recovery by increasing the sorption capacity of the resin and its ability to subsequently draw out gold.
    Pr and measures. In experiments with sprout base anion exchange resins with styrene-divinylbenzene matrix with the following polyaminoalkyleneamine groups: 1.3-diaminopropane (resin A); 3,3-iminobispropylamine (B); 2,4-diamiyo-2-methylpentane (C) and 4-amino-2.2,6,6 tetram-1-methylpiperidine (D), as well as industrial resin Dowex MWA-1 (cp "ol
    E). used as a prototype. Some experiments were performed on these resins after introducing the additions of barium and lead sulfates to them by sequential processing of the resin with solutions of sulfuric acid and lead or barium salts. The pKa of resins A - D is within 10.5-11.2, the pKa of resin E is 7.75.
    To study the processes of sorption and gold deposition, a concentrated solution of gold is prepared by dissolving 1.56 g of gold chloride, it contains 50% by weight of gold and 1.56 g of sodium cyanide per 1 l of deionized water, 5 ml of this solution is added to 8 oz glass A bottle containing 0.1 g of resin and 150 g of deionized water. pH of the liquid phase
    权利要求:
    Claims (2)
    [1]
    Claim
    1. The method of extracting gold from cyanide solutions by contacting them with a weakly basic anion exchange resin followed by elution of gold with an alkaline solution, characterized in that, in order to increase the degree of gold recovery by increasing the sorption capacity of the resin and its ability to subsequently elute gold, as weakly basic anion exchange resins use a styrene-divinylbenzene matrix with polyaminoalkyleneamine groups in which the two amine parts are separated by 1, the X-alkylene part, where X> 2 10 whole h layer and poliaminoalkilenaminy selected from the group consisting of 1,3-diaminopropane, 3,3-iminobispropilamina,
    [2]
    2,4-diamino-2-methylpentane and 4-amino2,2,6,6-tetramethylpiperidine.
    15 2, The method according to claim 1, characterized in that the contacting of the resin with the cyanide solution is carried out! at pH less than or equal to, and elution of gold at a pH greater than pKa weakly basic resin.
    20 3. The method of pop. 1, characterized in that the contacting of the cyanide solution with the resin is carried out by passing the solution through a fixed resin layer or through a resin system in the pulp.
    Example Resin type pKa resin solution pH Gold content, mg / cm 0 in solution in sorbent 1 A 10.5 5.41 0.1 39283 9.08 2.2 36516 10.3 7.9 26456 11.88 20,4 7991 2 A (BaSCM) 10.25 5.73 0.1 39631 9.22 3.2 34103 10.14 7.8 27241 12.02 18.0 11793 3 B (PbS04) 10.5 5.37 0.1 39753 9.93 6.5 29689 10.59 10.6 23382 11.40 h 16,4 14266 4 FROM 11.2 5.40 0.1 42871 9.35 1.8 40916 10.95 12,4 24721 11.55 18.2 15831 12.45 22.5 9096 5 D (PbS04) 11.2 5.79 - 46100 8.98 - 38000 11.00 - 18800 13.0  - 11100 6 (proto- E 7.75 6.37 1,2 35365 a type) 7.20 5,4 29014 8.17 14.6 13403 10.07 19.0 848 ... ........12.11 23.7 212
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1715198A3|1992-02-23|Method of extracting gold from cyanide solution
    Borodkin et al.1970|Interaction of amine drugs with a polycarboxylic acid ion-exchange resin
    Winters et al.1949|Ion Exchange in the Pharmaceutical Field.
    US2954276A|1960-09-27|Hydrometallurgical process
    Sussman et al.1945|Metal Recovery by Anion Exchange.
    US3001868A|1961-09-26|Recovery of metals from cyanide solution by anion exchange
    CA2023405A1|1991-02-18|Process for purifying n-phosphonomethylglycine
    US4692431A|1987-09-08|Hydrous oxide activated charcoal
    US2839389A|1958-06-17|Recovery of gold from aqueous cyanide solution
    US8062526B2|2011-11-22|Separation of platinum group metals
    US2656347A|1953-10-20|Streptomycin broth clarification with sequestering agents
    US4189350A|1980-02-19|Process for purifying urokinase
    US3635697A|1972-01-18|Recovery of gold
    GB1598686A|1981-09-23|Enzymes immobilised on a resin via chelation with a metal
    JPH07206804A|1995-08-08|Purification of taurine
    KR790001186B1|1979-09-12|Recovery and separation of platinum group metals
    EP0185379A3|1988-05-11|A process for the production of purified glucose isomerase
    US3006756A|1961-10-31|Extraction of precious metal compounds from an aqueous solution
    JP2666469B2|1997-10-22|Purification method of organic compound solution
    US2597329A|1952-05-20|Process for anion exchange of thiamin salts
    SU1206327A1|1986-01-23|Method of extracting copper
    SU432218A1|1974-06-15|METHOD OF EXTRACTION AND CONCENTRATION OF COLOR METALS
    GB1118669A|1968-07-03|Purification of adenosine triphosphate
    SU1118707A1|1984-10-15|Method of extracting nickel from rinsing water of electroplating process
    JPS6428229A|1989-01-30|Method for recovering gold
    同族专利:
    公开号 | 公开日
    AU598059B2|1990-06-14|
    US4758413A|1988-07-19|
    PH26063A|1992-01-29|
    MX172863B|1994-01-18|
    ZW21087A1|1989-06-14|
    ZA878567B|1989-07-26|
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    JPS63153229A|1988-06-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2839389A|1955-12-16|1958-06-17|Nat Res Dev|Recovery of gold from aqueous cyanide solution|
    FR2279453B3|1974-07-24|1977-05-20|Dia Prosim|
    US4762556A|1980-08-07|1988-08-09|Commonwealth Scientific And Industrial Research Organization|Selective extraction of gold|
    JPH0249357B2|1983-03-09|1990-10-29|Dow Corning|
    US4698425A|1984-07-24|1987-10-06|Year Laboratories, Inc.|1,3 Disubstituted aromatic cyclohexane imides|
    JPH037731B2|1985-01-14|1991-02-04|Rai Res Corp|
    DE3503497A1|1985-02-02|1986-08-07|Merck Patent Gmbh, 6100 Darmstadt|Complexing agents for the selective isolation of noble metals from aqueous solutions|AU4437399A|1998-06-12|1999-12-30|Waters Investments Limited|Novel ion exchange porous resins for solid phase extraction and chromatography|
    IL138852D0|2000-10-04|2001-10-31|Yeda Res & Dev|Ion exchange resins for gold cyanide extraction|
    AU2007266303B2|2006-05-25|2012-03-29|Commonwealth Scientific & Industrial Research Organisation|Process for recovering metals from resins|
    US20080035564A1|2006-08-09|2008-02-14|Solmetex, Inc.|Sorbent For Selective Removal Of Contaminants From Fluids|
    JP4693123B2|2006-08-28|2011-06-01|住友精化株式会社|Gold adsorbent and method for selective separation and recovery of gold|
    JP5935082B2|2010-10-06|2016-06-15|センカ株式会社|Selective recovery agent of noble metal and method for selective recovery of noble metal from liquid containing noble metal|
    PE20131407A1|2010-12-07|2013-12-16|Barrick Gold Corp|RESIN-IN-LEACHING IN PARALLEL AND COUNTERCURRENT CURRENT IN GOLD LEACHING PROCESSES|
    US8715388B2|2011-04-29|2014-05-06|Momentive Performance Materials|Process of precious metal recovery and color removal from an organosilicon product-containing liquid reaction medium|
    US9656887B2|2012-10-25|2017-05-23|The Water Company|Removal of ions from aqueous fluid|
    US10161016B2|2013-05-29|2018-12-25|Barrick Gold Corporation|Method for pre-treatment of gold-bearing oxide ores|
    WO2015185804A1|2014-06-05|2015-12-10|OutotecOy|Silver recovery by ion exchange|
    CN110684905B|2019-11-29|2021-06-29|西安凯立新材料股份有限公司|Method for leaching metal platinum in platinum alumina catalyst by wet method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/931,322|US4758413A|1986-11-17|1986-11-17|Reactive resins useful for precious metal recovery|
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