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    • 2. 发明申请
    • COMPOSITION AND METHOD FOR REMOVING METAL CONTAMINANTS
    • 用于去除金属污染物的组合物和方法
    • US20090057232A1
    • 2009-03-05
    • US11849867
    • 2007-09-04
    • Alfredo M. Angeles-BozaCharles R. LandisWilliam W. Shumway
    • Alfredo M. Angeles-BozaCharles R. LandisWilliam W. Shumway
    • C02F1/62
    • C22B3/24B01J20/12B01J20/165B01J20/18B01J20/22B01J20/261B01J20/265B01J20/267B01J20/3021B01J20/3204B01J20/3208B01J20/321B01J20/3248B01J20/3251B01J20/3425B01J20/3433B01J20/3475B01J2220/46C02F1/281C02F1/285C02F1/288C02F1/683C02F2101/103C02F2101/203C02F2101/206C02F2101/22C22B3/205Y02P10/234
    • A method for removing a metal from a metal-containing solution comprising contacting the metal-containing solution with a metal-removing composition comprising a substrate, an organic ion, and a metal binding agent, and recovering a solution having a lowered metal concentration when compared to the metal-containing solution. A composition comprising a substrate, an organic ion, and a metal binding agent, wherein the substrate comprises a natural clay, a synthetic clay, a natural zeolite, a synthetic zeolite, a polymer resin, lignite, kaolinite, serpentine, illite, chlorite, smectite, montmorillonite, saponite, sepiolite, nontronite, beidellite, hectorite, fuller's earth, attapulgite, bentonite, analcime, chabazite, heulandite, natrolite, phillipsite, stilbite, diethyl aminoethyl, quaternary aminoethyl, or combinations thereof, wherein the organic ion comprises quaternary amines, imidazolium salts, phosphonium salts, tetra alkyl ammonium, bis-(hydrogenated tallow)-dimethyl-ammonium chloride, bis-(hydrogenated tallow)-benzyl-methyl-ammonium chloride, 4,5-dihydro-1-methyl-2-nortallow-alkyl-1-(2-tallow-amidoethyl)-imidazolium methyl sulfate, 1-ethyl-4,5-dihydro-3 -(2-hydroxyethyl)-2-(8-heptadecenyl)-imidazolium ethyl sulfate, or combinations thereof, and wherein the metal-binding agent comprises mercaptan, carboxylic acid, chelating agents, amines, esters, carboxylic acids, alcohols, ethers, aldehydes, ketones, alkenes, alkynes, mercaptans, thiols, tert-dodecanethiol, nonanethiol, octanethiol, n-stearic acid, iso-stearic acid, palmitic acid, or combinations thereof.
    • 一种从含金属溶液中除去金属的方法,包括使含金属溶液与包含基底,有机离子和金属粘合剂的金属去除组合物接触,并且当比较时回收具有降低的金属浓度的溶液 到含金属溶液。 包含基材,有机离子和金属粘合剂的组合物,其中所述基材包括天然粘土,合成粘土,天然沸石,合成沸石,聚合物树脂,褐煤,高岭石,蛇纹石,伊利石,亚氯酸盐, 绿泥石,蒙脱石,皂石,海泡石,白云母,贝得石,锂蒙脱石,富勒土,绿坡缕石,膨润土,顺铂,菱沸石,胡萝卜素,钠钙石,氯化石,二氧化硅,二乙基氨基乙基,季氨基乙基或其组合,其中有机离子包括季胺 ,咪唑鎓盐,鏻盐,四烷基铵,双(氢化牛油) - 二甲基氯化铵,双(氢化牛油) - 苄基 - 甲基 - 氯化铵,4,5-二氢-1-甲基-2- - 烷基-1-(2-牛油酰胺基乙基) - 咪唑鎓甲基硫酸盐,1-乙基-4,5-二氢-3-(2-羟乙基)-2-(8-十七碳烯基) - 咪唑鎓乙基硫酸盐或其组合 ,并且其中金属结合剂包括硫醇,汽车 胺,酯,羧酸,醇,醚,醛,酮,烯烃,炔烃,硫醇,硫醇,叔十二烷硫醇,壬硫醇,辛硫醇,正硬脂酸,异硬脂酸,棕榈酸, 或其组合。
    • 7. 发明授权
    • Method for recovering and separating metals from waste streams
    • 从废物流中回收和分离金属的方法
    • US06274045B1
    • 2001-08-14
    • US09122665
    • 1998-07-27
    • Lawrence Kreisler
    • Lawrence Kreisler
    • C02F162
    • C02F9/00C02F1/001C02F1/52C02F1/54C02F1/66C02F1/683C02F1/70C02F1/72C02F11/121C02F2101/103C02F2101/106C02F2101/20C02F2101/206C22B3/0029C22B3/205C22B7/006C22B11/046Y02P10/214Y02P10/234Y10S210/912Y10S210/913
    • A method is disclosed for recovering and separating precious and non-precious metals from waste streams, which removes, separates, and recovers such metals in a cost effective manner with more than 95% removal from waste streams and with minimal amounts of unprocessed solids and sludge remaining in the environment. Metals such as chromium, manganese, cobalt, nickel, copper, zinc, silver, gold, platinum, vanadium, sodium, potassium, beryllium, magnesium, calcium, barium, lead, aluminum, tin; and the like are removed and recovered from the waste streams with at least 95% removal and other metals and compounds, such as antimony, sulfur, and selenium are removed and recovered from waste streams with at least 50% removal. The method employs a unique complexing agent comprising a carbamate compound and an alkali metal hydroxide which facilitates the formation of the metals into ionic metal particles enabling them to be readily separated, removed and recovered. The method disclosed is also applicable to recover metals and other compounds originating from different waste sources such as existing and abandoned mines, contaminated ground water, standing contaminated water, and waste streams having a high solids content as well as treating water intended for potable use, recovering metals and other compounds from polluted or contaminated air, and the like. In addition, the disclosed method can be used to separate and recover precious and non-precious metals present in waste waters resulting from steel manufacturing, battery and chemical manufacturing, printed circuit board waste, titanium pickle operations, nickel and chrome plating operations, electroless nickel operations, X-ray and photographic waste, aluminum anodizing operations, construction and demolition landfill leaches, and the like.
    • 公开了一种用于从废物流中回收和分离贵重金属和非贵重金属的方法,其以成本有效的方式去除,分离和回收这些金属,其中从废物流中除去95%以上的废物和少量的未处理的固体和污泥 留在环境中。 金属如铬,锰,钴,镍,铜,锌,银,金,铂,钒,钠,钾,铍,镁,钙,钡,铅,铝,锡; 从废物流中除去并从其中回收至少95%的去除物并且除去其余的金属,并且从废物流中除去并回收至少50%去除物质的化合物,例如锑,硫和硒。 该方法使用独特的络合剂,其包含氨基甲酸酯化合物和碱金属氢氧化物,其有助于金属形成离子金属颗粒,使其能够容易地分离,除去和回收。所公开的方法也适用于回收金属和其它化合物 源自不同的废物来源,例如现有和废弃的矿井,污染的地下水,固定污染的水和具有高固体含量的废物流,以及处理用于饮用的水,从被污染或污染的空气中回收金属和其他化合物,以及 此外,所公开的方法可用于分离和回收由钢铁制造,电池和化学制造,印刷电路板废料,钛酸洗操作,镍和铬电镀操作引起的废水中存在的贵重和非贵重金属 ,化学镀镍操作,X射线和照相废料,铝 阳极氧化操作,施工和拆除垃圾填埋场等。
    • 9. 发明授权
    • Metal leach and recovery process
    • US09657368B2
    • 2017-05-23
    • US14416748
    • 2013-08-07
    • BASF SE
    • Andrew NisbettStephen AdkinsIan John FlanaganAlexsandro Berger
    • C22B3/44B01D21/01C22B3/20C22B15/00C22B3/04
    • C22B3/44B01D21/01C22B3/04C22B3/205C22B15/0084Y02P10/234Y02P10/236
    • The present invention relates to a metal leach and recovery process. The process involves subjecting a metal bearing material to a reactive process by combining said metal bearing material with a leaching agent to liberate at least one metal value and forming a first aqueous leach pulp. This first aqueous leach pulp is subjected to a solid liquid separation step thereby providing a first clarified aqueous leach solution and a second aqueous leach pulp. The first clarified aqueous leach solution is then subjected to solvent extraction thereby obtaining the first aqueous raffinate. The second aqueous leach pulp is subjected to at least two further solid liquid separation steps of which some or all are in a counter current decantation (CCD) arrangement. Each of the solid liquid separation steps of the CCD arrangement results in an aqueous liquor and aqueous suspension of solids wherein each aqueous suspension of solids resulting from each solid liquid separation step of the CCD arrangement is passed to the subsequent solid liquid separation step and the suspension of solids resulting from the final solid liquid separation step is removed from the process. Further, each aqueous liquor resulting from each solid liquid separation step of the CCD arrangement is passed to the previous solid liquid separation step. The further solid liquid separation steps result in at least one further clarified aqueous leach solution. The at least one further clarified aqueous leach solution is/are subjected to solvent extraction thereby obtaining at least one further aqueous raffinate. At least a portion of the one or more of the at least one further aqueous raffinates is fed into the final solid liquid separation is of the CCD arrangement. The process provides a flocculation system comprising either: (i) addition of an organic polymeric flocculant to or prior to at least one solid liquid separation step, which polymeric flocculant is formed from 2-acrylamido-2-methylpropane sulphonic acid (ATBS) or salts thereof as a homopolymer or copolymer with at least one water-soluble ethylenically unsaturated monomer; or (ii) addition of an organic polymeric flocculant and at least one support agent to or prior to at least one solid liquid separation step, which at least one support agent is selected from at least one of the group consisting of oxidizing agents, reducing agents, irradiation and free radical producing agents. The process provides significantly improved metal extraction and recovery.
    • 10. 发明申请
    • Composition and Method for Removing Metal Contaminants
    • 去除金属污染物的组成和方法
    • US20120261609A1
    • 2012-10-18
    • US13454932
    • 2012-04-24
    • Alfredo M. Angeles-BozaCharles R. LandisWilliam W. Shumway
    • Alfredo M. Angeles-BozaCharles R. LandisWilliam W. Shumway
    • C09K3/00
    • C22B3/24B01J20/12B01J20/165B01J20/18B01J20/22B01J20/261B01J20/265B01J20/267B01J20/3021B01J20/3204B01J20/3208B01J20/321B01J20/3248B01J20/3251B01J20/3425B01J20/3433B01J20/3475B01J2220/46C02F1/281C02F1/285C02F1/288C02F1/683C02F2101/103C02F2101/203C02F2101/206C02F2101/22C22B3/205Y02P10/234
    • A composition comprising a substrate, an organic ion, and a metal binding agent, wherein the substrate comprises a natural clay, a synthetic clay, a natural zeolite, a synthetic zeolite, a polymer resin, lignite, kaolinite, serpentine, illite, chlorite, smectite, montmorillonite, saponite, sepiolite, nontronite, beidellite, hectorite, fuller's earth, attapulgite, bentonite, analcime, chabazite, heulandite, natrolite, phillipsite, stilbite, diethyl aminoethyl, quaternary aminoethyl, or combinations thereof, wherein the organic ion comprises quaternary amines, imidazolium salts, phosphonium salts, tetra alkyl ammonium, bis-(hydrogenated tallow)-dimethyl-ammonium chloride, bis-(hydrogenated tallow)-benzyl-methyl-ammonium chloride, 4,5-dihydro-1-methyl-2-nortallow-alkyl-1-(2-tallow-amidoethyl)-imidazolium methyl sulfate, 1-ethyl-4,5-dihydro-3-(2-hydroxyethyl)-2-(8-heptadecenyl)-imidazolium ethyl sulfate, or combinations thereof, and wherein the metal-binding agent comprises mercaptan, carboxylic acid, chelating agents, amines, esters, carboxylic acids, alcohols, ethers, aldehydes, ketones, alkenes, alkynes, mercaptans, thiols, tert-dodecanethiol, nonanethiol, octanethiol, n-stearic acid, iso-stearic acid, palmitic acid, or combinations thereof.
    • 包含基材,有机离子和金属粘合剂的组合物,其中所述基材包括天然粘土,合成粘土,天然沸石,合成沸石,聚合物树脂,褐煤,高岭石,蛇纹石,伊利石,亚氯酸盐, 绿泥石,蒙脱石,皂石,海泡石,白云母,贝得石,锂蒙脱石,富勒土,绿坡缕石,膨润土,顺铂,菱沸石,胡萝卜素,钠钙石,氯化石,二氧化硅,二乙基氨基乙基,季氨基乙基或其组合,其中有机离子包括季胺 ,咪唑鎓盐,鏻盐,四烷基铵,双(氢化牛油) - 二甲基氯化铵,双(氢化牛油) - 苄基 - 甲基 - 氯化铵,4,5-二氢-1-甲基-2- - 烷基-1-(2-牛油酰胺基乙基) - 咪唑鎓甲基硫酸盐,1-乙基-4,5-二氢-3-(2-羟乙基)-2-(8-十七烯基) - 咪唑鎓乙基硫酸盐或其组合 ,并且其中所述金属结合剂包括硫醇,碳酸氢盐 羟基酸,螯合剂,胺,酯,羧酸,醇,醚,醛,酮,烯烃,炔烃,硫醇,硫醇,叔十二烷硫醇,壬硫醇,辛硫醇,正硬脂酸,异硬脂酸,棕榈酸, 或其组合。