公开(公告)号：US4966710A

公开(公告)日：1990-10-30

申请号：US504476

申请日：1990-04-04

Applicant: Tai K. Kim ,  Robert P. McClintic

Inventor： Tai K. Kim ,  Robert P. McClintic

IPC: B01D15/04 ,  B01J45/00 ,  C01D1/04 ,  C01D5/16

CPC classification number: B01J45/00 ,  C01D1/04 ,  C01D5/16

Abstract: A method for removing magnesium and calcium from sodium sulfate solutions to render the solutions suitable for membrane processing, which comprises adjusting the pH of the solutions to about 11 to 13 with sodium hydroxide to form a precipitate containing the bulk of the magnesium and the calcium, removing the precipitate from the resulting partially purified sodium sulfate solution, and contacting the partially purified sodium sulfate solution with a polystyrene divinyl benzene copolymer chelating cation exchange resin having an aminophosphonic functional group and having sodium as the exchangeable cation, to remove essentially all of the magnesium and the calcium from the partially purified sodium sulfate solution.

Abstract translation: 一种从硫酸钠溶液中除去镁和钙以使溶液适合于膜处理的方法，其包括用氢氧化钠将溶液的pH调节至约11至13，以形成含有大部分镁和钙的沉淀物， 从所得部分纯化的硫酸钠溶液中除去沉淀物，并使部分纯化的硫酸钠溶液与具有氨基膦官能团并具有钠作为可交换阳离子的聚苯乙烯二乙烯基苯共聚物螯合阳离子交换树脂接触，以除去基本上所有的镁 和来自部分纯化的硫酸钠溶液的钙。

公开(公告)号：US4943375A

公开(公告)日：1990-07-24

申请号：US240689

申请日：1988-09-06

Applicant: Jerald S. Bradshaw ,  Reed M. Izatt ,  Ronald L. Bruening ,  James J. Christensen, deceased

Inventor： Jerald S. Bradshaw ,  Reed M. Izatt ,  Ronald L. Bruening ,  James J. Christensen, deceased

IPC: B01J20/32 ,  B01J45/00 ,  C01F11/00 ,  C01G21/00

CPC classification number: C01G21/003 ,  B01J20/103 ,  B01J20/3092 ,  B01J20/3204 ,  B01J20/3217 ,  B01J20/3257 ,  B01J20/3263 ,  B01J45/00 ,  C01F11/005 ,  C22B3/42 ,  B01J2220/58 ,  Y02P10/234

Abstract: The invention has composition of matter and process aspects. The composition of matter aspect relates to the compounds selected from the class consisting of: ##STR1## in which Silica is sand or silica gel. The process aspect involves the use of any of these compounds packed in a column through which a solution of the multiple ions is flowed to complex with the compound and separate a desired selected ion from a multiple ion solution, breaking the complex by flowing a receiving liquid through the column to free the desired ion and recovering the freed desired ion from the receiving liquid.

Abstract translation: 本发明具有物质和方法的组成。 物质组成方面涉及从以下类别中选出的化合物： 低级烷基，芳基; X = CH 3或烷氧基或Cl或O-二氧化硅; Y = O或CH 2; a = 1-16 + RE，其中二氧化硅为砂或硅胶。 方法方面涉及使用填充在柱中的任何这些化合物，多个离子的溶液通过该混合物流动以与化合物复合并从多离子溶液中分离所需的选定离子，通过使接收液体流动来破坏络合物 通过柱以释放所需离子并从接收液中回收所释放的所需离子。

公开(公告)号：US4925923A

公开(公告)日：1990-05-15

申请号：US350051

申请日：1989-05-10

Applicant: Manssur Yalpani ,  Leon Magdzinski

Inventor： Manssur Yalpani ,  Leon Magdzinski

IPC: B01J45/00

CPC classification number: C08H6/00 ,  B01J45/00

Abstract: A product comprising, a water insoluble lignin material, at neutral or acid pH, having chemically bound a sulfur(S) content from at least 9.5%, and a phosphorus(P) content from 3.3 to 10%. At least 50% by weight of the S and P content is thiophosphate. In said lignin material the mole ratio S/P is at least 1.8 that of S to aromatic unit (S/Ar) is greater than 0.7, and the P/Ar ratio is from 0.3 to 0.8. The lignin material has chelating capacities for gold at pH 2 of at least 2.2 millimoles per gram of lignin material. On IR analysis the lignin material has infra-red absorption bands evidencing P.dbd.S, P--S or Ar--S, P--O--Ar, aromatic, CH.sub.2 --S, and P--O--C groups in the vicinity of 730-750, 640-670, 1080-1110, 1490-1510, 820-845, and 965-995 cm.sup.-1, respectively. In the absence of interferring IR bands, the sum of the intensity of the bands in the vicinity of 640-670 cm.sup.-1 and 730-750 cm.sup.-1 over the intensity of the band in the vicinity of 1080-1110 cm.sup.-1 is greater than 1. The product, substantially free from unbound sulfur, may be used in chelation, floatation processes, as flame retardant, and for agricultural uses. A method of making the above comprises heating a lignin product with at least an exact equivalent molar ratio of phosphorus pentasulfide (P.sub.4 S.sub.10). The reaction product must be specially treated to recover it.

Abstract translation: 在中性或酸性pH下，包含具有至少9.5％的硫（S）含量和3.3至10％的磷（P）含量）化学结合的水不溶性木质素材料的产品。 至少50重量％的S和P含量是硫代磷酸盐。 在所述木质素材料中，S / P的摩尔比S / P为S至芳族单元（S / Ar）的摩尔比至少为1.8，P / Ar比为0.3至0.8。 木质素材料对pH为2的金每克木质素材料具有至少2.2毫摩尔的螯合能力。 在红外分析中，木质素材料具有红外吸收带，证明了在730-750,640-670,1080-323附近的P = S，PS或Ar-S，PO-Ar，芳族，CH2-S和POC基团， 分别为1110,1490-1510,820-845和965-995cm-1。 在不存在干涉IR波段的情况下，在1080-1110cm-1附近的频带强度之间，640-670cm -1附近和730-750cm -1附近的频带的强度之和是 大于1.该产品基本上不含未结合的硫，可用于螯合，漂浮工艺，阻燃剂和农业用途。 制备上述方法包括以至少五硫化二磷（P4S10）的精确当量摩尔比加热木质素产物。 反应产物必须经过特殊处理以回收。

公开(公告)号：US4909944A

公开(公告)日：1990-03-20

申请号：US237263

申请日：1988-08-26

Applicant: Paul J. Jackson ,  Emmanuel Delhaize ,  Nigel J. Robinson ,  Clifford J. Unkefer ,  Clement Furlong

Inventor： Paul J. Jackson ,  Emmanuel Delhaize ,  Nigel J. Robinson ,  Clifford J. Unkefer ,  Clement Furlong

IPC: C02F1/62 ,  B01D15/00 ,  B01J20/32 ,  B01J45/00 ,  C01G11/00 ,  C02F1/28 ,  C02F9/00 ,  C07K17/02 ,  C07K17/10

CPC classification number: C02F9/00 ,  B01J20/28004 ,  B01J20/28019 ,  B01J20/3208 ,  B01J20/3212 ,  B01J20/3251 ,  B01J20/3274 ,  B01J20/3425 ,  B01J20/3475 ,  C01G11/003 ,  C02F1/285 ,  C02F1/288 ,  C22B3/24 ,  B01J2220/58 ,  C02F2101/20 ,  Y02P10/234 ,  Y10S210/912 ,  Y10S210/914

Abstract: A method of removing heavy metals from aqueous solution, a composition of matter used in effecting said removal, and apparatus used in effecting said removal. One or more of the polypeptides, poly (.gamma.-glutamylcysteinyl)glycines, is immobilized on an inert material in particulate form. Upon contact with an aqueous solution containing heavy metals, the polypeptides sequester the metals, removing them from the solution. There is selectivity of poly (.gamma.-glutamylcysteinyl)glycines having a particular number of monomer repeat units for particular metals. The polypeptides are easily regenerated by contact with a small amount of an organic acid, so that they can be used again to remove heavy metals from solution. This also results in the removal of the metals from the column in a concentrated form.

Abstract translation: 从水溶液中除去重金属的方法，用于进行除去的物质的组合物，以及用于进行所述除去的装置。 聚（γ-谷氨酰半胱氨酰）甘氨酸中的一种或多种多肽以固体形式固定在惰性物质上。 当与含有重金属的水溶液接触时，多肽螯合金属，将其从溶液中除去。 对于特定金属，具有特定数目的单体重复单元的聚（γ-谷氨酰半胱氨酰）甘氨酸具有选择性。 通过与少量有机酸的接触容易地再生多肽，从而可以再次使用它们以从溶液中除去重金属。 这也导致以浓缩形式从柱中除去金属。

公开(公告)号：US4762556A

公开(公告)日：1988-08-09

申请号：US285926

申请日：1981-07-23

Applicant: Jonathan H. Hodgkin ,  Robert Eibl

Inventor： Jonathan H. Hodgkin ,  Robert Eibl

IPC: C22B11/08 ,  B01J20/26 ,  B01J45/00 ,  C01G7/00 ,  C02F1/42 ,  C22B11/00 ,  C22B11/04

CPC classification number: C01G7/003 ,  C22B3/24 ,  Y02P10/234 ,  Y10S423/14

Abstract: Gold is selectively extracted from an aqueous solution by contacting the gold-containing solution, which may contain other metals, with a resin which is a diallylamine homopolymer or copolymer, and then separating the resin from the solution.

Abstract translation: 通过将含有其它金属的含金溶液与二烯丙基胺均聚物或共聚物的树脂接触，然后将树脂与溶液分离，从而从水溶液中选择性地提取金。

公开(公告)号：US4758413A

公开(公告)日：1988-07-19

申请号：US931322

申请日：1986-11-17

Applicant: William I. Harris ,  James R. Stahlbush

Inventor： William I. Harris ,  James R. Stahlbush

IPC: B01J41/04 ,  B01J45/00 ,  C01C3/11 ,  C01G7/00 ,  C22B3/42 ,  C22B11/00

CPC classification number: C01G7/003 ,  C22B3/42 ,  Y02P10/234 ,  Y10S423/14

Abstract: 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).

Abstract translation: 公开了一种用于回收贵金属值的改进方法。 通过该方法，阴离子络合物形式的贵金属与能够与阴离子络合物络合的弱碱性阴离子交换树脂接触。 这种弱碱性阴离子交换树脂含有衍生自线性或环状聚氨基亚烷基胺的弱碱官能团，其在1个X亚烷基部分具有多于1个胺部分和至少3个碳原子，或将至少1个胺部分与 第二胺部分（即，X是大于2的整数）。

公开(公告)号：US4711863A

公开(公告)日：1987-12-08

申请号：US838298

申请日：1986-03-10

Applicant: Michael Streat ,  Sofia Belfer-Canterman

Inventor： Michael Streat ,  Sofia Belfer-Canterman

IPC: B01D15/00 ,  B01J20/26 ,  B01J37/34 ,  B01J45/00 ,  B01J47/00 ,  C01G3/00 ,  C01G7/00 ,  C08F2/44 ,  C08J5/24 ,  C22B1/10 ,  C22B3/00 ,  B05D3/06

CPC classification number: B01J20/28097 ,  B01J45/00 ,  B01J47/007 ,  C01G3/003 ,  C01G7/003 ,  C22B3/24 ,  Y02P10/234

Abstract: A process for the production of a solid, particulate immobilized extractant, which process comprises adsorbing (a) a liquid extractant which is not homopolymerizable onto (b) a porous, solid, particulate, substrate; adsorbing (c) a monomer onto the substrate; and polymerizing the adsorbed monomer (c) thereby entrapping the liquid extractant (a) on substrate (b).

Abstract translation: 一种生产固体颗粒固定萃取剂的方法，该方法包括将（a）不均匀聚合的液体萃取剂吸附到（b）多孔，固体，颗粒状基材上; 将（c）单体吸附到基材上; 并使吸附的单体（c）聚合，从而将液体萃取剂（a）截留在基材（b）上。

公开(公告)号：US4707271A

公开(公告)日：1987-11-17

申请号：US793815

申请日：1985-11-01

Applicant: Zahid Amjad ,  William F. Masler, III

Inventor： Zahid Amjad ,  William F. Masler, III

IPC: B01J45/00 ,  C02F5/00 ,  C02F5/08 ,  C02F5/10 ,  C02F5/12 ,  C08F8/44 ,  C09K3/00

CPC classification number: C02F5/12

Abstract: The copolymers are effective in stabilizing iron in solution and as antiscalants in the presence of soluble iron, the copolymers are used in amount of 1 to 200 ppm, have molecular weight of about 1,000 to 50,000, and are prepared by polymerizing 40 to 95 weight parts of an acrylic acid with 5 to 60 weight parts of a substituted acrylamide.

Abstract translation: 该共聚物在稳定溶液中的铁和在可溶性铁存在下作为阻垢剂是有效的，共聚物的用量为1至200ppm，分子量约为1,000至50,000，并且通过聚合40至95重量份 的丙烯酸与5至60重量份的取代的丙烯酰胺。

公开(公告)号：US4626416A

公开(公告)日：1986-12-02

申请号：US623397

申请日：1984-06-22

Applicant: Irving W. DeVoe ,  Bruce E. Holbein

Inventor： Irving W. DeVoe ,  Bruce E. Holbein

IPC: A23L2/42 ,  A23L2/78 ,  A23L3/3463 ,  A61L2/16 ,  B01J45/00 ,  C01F15/00 ,  C02F1/64 ,  C12H1/052 ,  C12P9/00 ,  C22B3/18 ,  C22B3/26 ,  C22B3/32 ,  B07C5/36 ,  B07B13/05

CPC classification number: A23L3/3463 ,  A23L2/42 ,  A23L2/78 ,  A61L2/16 ,  B01J45/00 ,  C01F15/00 ,  C02F1/64 ,  C12H1/0416 ,  C12P9/00 ,  C22B3/0008 ,  C22B3/0024 ,  C22B3/18 ,  Y02P10/234 ,  Y10S210/912

Abstract: The present invention relates to insoluble compositions, which are capable of removing metal (e.g. selectively) from solution (e.g. Fe.sup.3+ from a liquid nutrient medium so as to lower the Fe.sup.3+ content to less than 0.1 .mu.M); the insoluble compositions comprise: a suitable insoluble carrier and organic co-ordinating sites covalently fixed to the surface of said carrier, said co-ordinating sites being capable of chelating Fe.sup.3+, Th.sup.4+ and/or UO.sub.2.sup.2+.

公开(公告)号：US4622344A

公开(公告)日：1986-11-11

申请号：US585977

申请日：1984-03-05

Applicant: Walter C. Babcock ,  Mark E. Tuttle ,  James W. Brooke

Inventor： Walter C. Babcock ,  Mark E. Tuttle ,  James W. Brooke

IPC: B01J20/34 ,  B01J39/20 ,  B01J45/00 ,  C01G3/00 ,  C08J5/20 ,  C23F1/46

CPC classification number: B01J39/20 ,  B01J45/00 ,  C01G3/003 ,  C22B3/24 ,  C22B3/42 ,  C23F1/46 ,  Y02P10/234

Abstract: There is disclosed novel copper ion-exchange media and processes for the recovery of cupric ion from ammoniacal copper solutions and for the recovery of spent printed circuit board etchant. The novel ion-exchange media comprise hydrophobic nonporous polymer plasticized and swollen with a monomeric organic liquid copper ion-exchange agent such as beta-diketones or hydroxyoximes. A novel copper ion-complexing agent, 1-n-octylphenyl-p-1,3-butanedione, is also disclosed. The processes essentially comprise contacting the ammoniacal cupric ion-containing solution or spent etchant with the novel copper ion-exchange media to extract copper in cupric ion form. Copper can be recovered therefrom by conventional methods such as acid stripping and electrowinning.

Abstract translation: 公开了新颖的铜离子交换介质以及用于从氨铜溶液回收铜离子和回收废印刷电路板蚀刻剂的方法。 新型离子交换介质包括用单体有机液体铜离子交换剂（例如β-二酮或羟基肟）增塑和溶胀的疏水性无孔聚合物。 还公开了一种新型铜离子络合剂1-正辛基苯基 - 对1,3-丁二酮。 该方法基本上包括使含氨基铜离子的溶液或废蚀刻剂与新的铜离子交换介质接触以提取铜离子形式的铜。 铜可以通过常规方法如酸剥离和电解提取来回收。