公开(公告)号：US6136199A

公开(公告)日：2000-10-24

申请号：US206446

申请日：1998-12-07

Applicant: Arup SenGupta ,  Dongye Zhao

Inventor： Arup SenGupta ,  Dongye Zhao

IPC: B01J41/04 ,  B01J45/00 ,  C02F1/42

CPC classification number: B01J41/04 ,  B01J45/00 ,  C02F1/42 ,  Y10S210/906 ,  Y10S210/913

Abstract: Phosphates and chromates are selectively removed from contaminated water by a new class of sorbent, referred to as a Polymeric Ligand Exchanger (PLE). The exchanger bed comprising a styrene-divinylbenzene or polymethacrylate matrix having an electrically neutral chelating functional group with nitrogen or oxygen donor atoms, and a Lewis-acid type metal cation, such as copper, bonded to the chelating functional group in a manner that the positive charges of the metal cation are not neutralized. PLEs are very selective toward phosphates and chromates, chemically stable, and also amenable to efficient regeneration.

Abstract translation: 磷酸盐和铬酸盐通过称为聚合配体交换剂（PLE）的新类型的吸附剂从污染的水中选择性地去除。 交换床包含具有带有氮或氧供体原子的电中性螯合官能团的苯乙烯 - 二乙烯基苯或聚甲基丙烯酸甲酯基质，以及螯合官能团的路易斯酸型金属阳离子如铜， 不中和金属阳离子的电荷。 PLE对磷酸盐和铬酸盐非常有选择性，化学稳定，并且还适于有效的再生。

公开(公告)号：US6132750A

公开(公告)日：2000-10-17

申请号：US108670

申请日：1998-07-01

Applicant: Eric Perrier ,  Chantal Buffevant ,  Isabelle Bonnet ,  Marie-Christine Levy

Inventor： Eric Perrier ,  Chantal Buffevant ,  Isabelle Bonnet ,  Marie-Christine Levy

IPC: A61K9/50 ,  A61K8/04 ,  A61K8/64 ,  A61K8/73 ,  A61K9/14 ,  A61K31/00 ,  A61K47/36 ,  A61K47/42 ,  A61K47/48 ,  A61K49/00 ,  A61K51/00 ,  A61P29/00 ,  A61P31/00 ,  A61P31/04 ,  A61P39/00 ,  A61P39/04 ,  A61P39/06 ,  A61P43/00 ,  A61Q1/04 ,  A61Q1/10 ,  A61Q17/04 ,  A61Q19/00 ,  B01J13/02 ,  B01J45/00 ,  C02F1/42 ,  C08J3/14 ,  C09K3/00 ,  A61K7/00

CPC classification number: A61K8/0241 ,  A61K47/48876 ,  A61K8/64 ,  A61K8/73 ,  A61Q1/04 ,  A61Q1/10 ,  A61Q17/04 ,  A61Q19/00 ,  A61K2800/412 ,  A61K2800/51 ,  A61K2800/594 ,  A61K2800/654 ,  A61K2800/782 ,  A61Q1/06 ,  A61Q19/02 ,  A61Q19/06 ,  Y02W10/37 ,  Y10S514/963 ,  Y10T428/2989

Abstract: The invention relates to small sized particles.These particles comprise at least on the surface thereof a wall composed of a mixture of at least one protein and at least one polysaccharide which are cross-linked, preferably by interfacial cross-linking with a polyfunctional acylating agent which forms at least amide and ester bonds, and optionally anhydride bonds with amine, hydroxyl or carboxyl functions of the protein and of the polysaccharide, and which comprise hydroxamic groups on the surface thereof for chelating metal ions.These particles can be used in cosmetics or in pharmacy notably for the chelation or release of metal ions.

Abstract translation: 本发明涉及小尺寸颗粒。 这些颗粒至少在其表面上包含由至少一种蛋白质和至少一种多糖的混合物组成的壁，其交联，优选通过与形成至少酰胺和酯键的多官能酰化剂的界面交联 并且任选地与蛋白质和多糖的胺，羟基或羧基官能团酸酐键合，并且其表面上含有用于螯合金属离子的异羟肟基。 这些颗粒可用于化妆品或药房中，特别用于螯合或释放金属离子。

公开(公告)号：US6103121A

公开(公告)日：2000-08-15

申请号：US76204

申请日：1998-05-12

Applicant: Dibakar Bhattacharyya ,  Leonidas G. Bachas ,  Lawrence Cullen ,  Jamie A. Hestekin ,  Subhas K. Sikdar

Inventor： Dibakar Bhattacharyya ,  Leonidas G. Bachas ,  Lawrence Cullen ,  Jamie A. Hestekin ,  Subhas K. Sikdar

IPC: B01D61/00 ,  B01D67/00 ,  B01D71/12 ,  B01D71/16 ,  B01J20/28 ,  B01J20/32 ,  B01J45/00 ,  C02F1/28 ,  C02F1/44 ,  C08B3/22 ,  B01D71/10

CPC classification number: B01D67/0093 ,  B01D61/00 ,  B01D71/12 ,  B01D71/16 ,  B01J20/28033 ,  B01J20/2808 ,  B01J20/3242 ,  B01J20/3272 ,  B01J45/00 ,  C08B3/22 ,  C02F1/28 ,  C02F1/285 ,  C02F1/44 ,  C02F2101/20

Abstract: A process is provided for making membrane-based sorbents with enhanced binding activity that are particularly useful for heavy metal sequestration. The process includes the step of selectively hydrolyzing a polyacetylated membrane in order to deacetylate a surface layer of said membrane and expose free hydroxyl groups. This is followed by the oxidizing of the hydroxyl groups to aldehyde groups. This is then followed by the attaching of a polycarboxylic acid such as a polyamino acid, polyalkenoic acid or polypeptide to the membrane through the aldehyde groups. Preferably, the hydrolyzing step is completed under alkaline conditions and the oxidizing step is completed using an aqueous solution of sodium periodate.

Abstract translation: 提供了一种制备具有增强的结合活性的膜基吸附剂的方法，其特别适用于重金属螯合。 该方法包括选择性水解聚乙酰化膜以使所述膜的表面层脱乙酰化并暴露游离羟基的步骤。 然后将羟基氧化成醛基。 然后通过醛基将多羧酸如聚氨基酸，聚链烯酸或多肽与膜连接。 优选地，在碱性条件下完成水解步骤，并且使用高碘酸钠水溶液完成氧化步骤。

公开(公告)号：US6071416A

公开(公告)日：2000-06-06

申请号：US202731

申请日：1998-12-14

Applicant: Ronald L. Bruening ,  Krzysztof E. Krakowiak ,  Reed M. Izatt ,  Jerald S. Bradshaw

Inventor： Ronald L. Bruening ,  Krzysztof E. Krakowiak ,  Reed M. Izatt ,  Jerald S. Bradshaw

IPC: B01D15/04 ,  B01D15/00 ,  B01D15/08 ,  B01J20/22 ,  B01J20/26 ,  B01J20/32 ,  B01J45/00 ,  B01J49/00 ,  C02F1/42 ,  C08F8/30

CPC classification number: B01J20/3219 ,  B01D15/00 ,  B01J20/286 ,  B01J20/289 ,  B01J20/3092 ,  B01J20/3204 ,  B01J20/321 ,  B01J20/3217 ,  B01J20/3246 ,  B01J20/3255 ,  B01J20/3257 ,  B01J20/3259 ,  B01J20/3261 ,  B01J20/3263 ,  B01J45/00 ,  B01J2220/54 ,  B01J2220/58

Abstract: A method and composition for the concentration and removal of desired metal ions from a source solution by contacting the solution with an N-cyclic aromatic hydrocarbon-containing ligand covalently bonded to a solid support through a hydrophilic spacer of the formula SS--A--X--(L).sub.n where SS is a solid support, A is covalent linkage mechanism, X is a hydrophilic spacer grouping, L is an N-cyclic aromatic containing ligand group and n is an integer of 1 to 6. X or L combined will not contain more than two amine nitrogen atoms. There will preferably be at least four N-cyclic groups present of which pyridine, pyrimidine, pyraxine, imidazole, quinoline, isoquinoline, naphthyridine, pyridopyridine, phenanthroline are representative. The desired ions in the source solution are bound to the ligands and are subsequently separated by contacting the ligand containing compound with a smaller volume of a receiving solution that removes the bound ions for recovery in concentrated form in the smaller volume of the receiving solution.

Abstract translation: PCT No.PCT / US97 / 11054 Sec。 371 1998年12月14日第 102（e）1998年12月14日日期PCT 1997年6月24日PCT公布。 公开号WO97 / 49492 日期1997年12月31日一种用于通过使溶液与通过式SS的亲水间隔基共价结合到固体支持物上的N-环状含芳族烃的配体接触来从源溶液中浓缩和除去所需金属离子的方法和组合物 -AX-（L）n其中SS是固体支持物，A是共价连接机理，X是亲水间隔基团，L是含有N环芳族的配体基团，n是1至6的整数。X或L 组合不会含有多于两个胺氮原子。 优选存在至少四个存在的吡啶，嘧啶，吡咯啉，咪唑，喹啉，异喹啉，萘啶，吡啶并吡啶，菲咯啉等的N-环基。 源溶液中所需的离子与配体结合，随后通过使含配体的化合物与较小体积的接收溶液接触来分离，该接收溶液在较小体积的接收溶液中除去结合的离子以浓缩形式回收。

公开(公告)号：US5997742A

公开(公告)日：1999-12-07

申请号：US81040

申请日：1998-05-18

Applicant: Douglas T. Gjerde ,  Robert M. Haefele ,  David W. Togami

Inventor： Douglas T. Gjerde ,  Robert M. Haefele ,  David W. Togami

IPC: B01D15/08 ,  B01D15/12 ,  B01D15/36 ,  B01D15/38 ,  B01J45/00 ,  C12N15/10 ,  G01N30/14 ,  G01N30/52

CPC classification number: C12N15/101 ,  B01D15/12 ,  B01D15/366 ,  B01D15/38 ,  B01J45/00 ,  G01N2030/528 ,  G01N30/14

Abstract: Improved liquid chromatography systems having components made of titanium, stainless steel, or organic polymeric material are useful in the separation of polynucleotide fragments, particularly large fragments of double-stranded polynucleotides, by Matched Ion Polynucleotide Chromatography (MIPC). The titanium, stainless steel, or polymeric components are treated so that they do not release multivalent cations into aqueous solutions flowing through the chromatography system. Alternatively, or in addition to utilizing materials made of the components listed above, a multivalent cation capture resin placed upstream of the separation column can be employed to remove multivalent ions from the system. The multivalent cation capture resin can be contained in a guard disk, a guard column, or a guard cartridge. Novel methods for separating mixtures of polynucleotide fragments into fractions based on their molecular weight by Matched Ion Polynucleotide Chromatography and slalom chromatography utilize the liquid chromatographic systems described above.

公开(公告)号：US5989430A

公开(公告)日：1999-11-23

申请号：US107327

申请日：1998-06-30

Applicant: Kazuhiko Motoba ,  Katutoshi Narita

Inventor： Kazuhiko Motoba ,  Katutoshi Narita

IPC: C02F1/62 ,  B01D15/04 ,  B01J45/00 ,  B01J49/00 ,  C22B3/42 ,  C22B30/02

CPC classification number: B01J45/00

Abstract: In a method for recovering antimony from the electrolyte of copper electro-refining process, the antimony is adsorbed on the chelating resin and is then eluted by acid. The eluate is then neutralized to recover antimony. In a conventional method, a large amount of acid and alkali is used. In the inventive eluting method, the antimony concentration in the acidic eluting solution is adjusted to 4 g/L or more in the first step and 3 g/L or less in the second step.

Abstract translation: 在从铜电解法的电解质中回收锑的方法中，锑被吸附在螯合树脂上，然后被酸洗脱。 然后将洗脱液中和以回收锑。 在常规方法中，使用大量的酸和碱。 在本发明的洗脱方法中，酸性洗脱液中的锑浓度在第一步骤中调节至4g / L以上，在第二步骤中调节为3g / L以下。

公开(公告)号：US5914044A

公开(公告)日：1999-06-22

申请号：US765485

申请日：1996-12-20

Applicant: Leonard Francis Lindoy ,  Peter Lewis Eaglen ,  Robert Louis Alldredge

Inventor： Leonard Francis Lindoy ,  Peter Lewis Eaglen ,  Robert Louis Alldredge

IPC: B01D15/00 ,  B01D15/04 ,  B01D15/08 ,  B01J20/32 ,  B01J45/00 ,  C07C211/14 ,  C08G73/02

CPC classification number: B01J45/00 ,  B01J20/08 ,  B01J20/103 ,  B01J20/262 ,  B01J20/28004 ,  B01J20/3204 ,  B01J20/3217 ,  B01J20/3219 ,  B01J20/3246 ,  B01J20/3272 ,  B01J2220/58

Abstract: A solid phase ligand removes metal cations from solution. The ligand is a branched polyalkyleneimine having a molecular weight of at least about 400, covalently bound to an inorganic support.

Abstract translation: PCT No.PCT / AU95 / 00362 Sec。 371日期1996年12月20日第 102（e）日期1996年12月20日PCT归档1995年6月21日PCT公布。 公开号WO95 / 35165 日期1995年12月28日固相配体从溶液中除去金属阳离子。 配体是分子量为至少约400的支链聚亚烷基亚胺，与无机载体共价结合。

公开(公告)号：US5817239A

公开(公告)日：1998-10-06

申请号：US788397

申请日：1997-01-27

Applicant: Lawrence L. Tavlarides ,  Nandu Deorkar

Inventor： Lawrence L. Tavlarides ,  Nandu Deorkar

IPC: B01J20/32 ,  B01J45/00 ,  B01D15/00 ,  C02F1/28

CPC classification number: B01J45/00 ,  B01J20/28004 ,  B01J20/28057 ,  B01J20/28078 ,  B01J20/3092 ,  B01J20/3204 ,  B01J20/3217 ,  B01J20/3219 ,  B01J20/3246 ,  B01J20/3257 ,  B01J20/3259 ,  B01J20/3261 ,  B01J20/3263 ,  B01J20/3425 ,  B01J20/3475 ,  B01J2220/56 ,  B01J2220/58

Abstract: A composite material useful for removing heavy metal ions from solutions such as aqueous waste streams comprises a ceramic inorganic support such as silica gel which is covalently bonded, through a silane coupling agent, to a hydroxyquinoline ligand or such a support which has been reacted with a silylating agent and then on which is deposited a hydroxyquinoline ligand.

Abstract translation: 用于从诸如废水流的溶液中除去重金属离子的复合材料包括通过硅烷偶联剂共价键合到羟基喹啉配体的陶瓷无机载体如硅胶，其与已经与 甲硅烷基化剂，然后在其上沉积羟基喹啉配体。

公开(公告)号：US5814498A

公开(公告)日：1998-09-29

申请号：US639831

申请日：1996-04-29

Applicant: K. N. Mani ,  D. Kent Hadden

Inventor： K. N. Mani ,  D. Kent Hadden

IPC: B01D61/44 ,  B01D61/58 ,  B01J45/00 ,  C07C51/42 ,  C12P7/40 ,  B01D15/04 ,  B01D61/00 ,  C12P7/56

CPC classification number: B01J45/00 ,  B01D61/445 ,  B01D61/58 ,  C07C51/42 ,  B01D61/027 ,  B01D61/422 ,  Y10S435/80

Abstract: A process recovers organic acid and ammonia from their salts preferably obtained from microbial fermentation of a saccharide in a nutrient. The fermented materials is passed through a nanofiltration or a chelating resin ion-exchange bed or a combination of both a nanofilter and a chelating resin ion-exchange bed in order to reduce divalent or multivalent metal contaminants. Then, the filtered material is processed in a multi compartment electrodialysis containing bipolar and anion membranes.

Abstract translation: 一种方法从其盐中回收有机酸和氨，优选从营养物中的糖的微生物发酵获得。 使发酵物质通过纳米过滤或螯合树脂离子交换床或纳米过滤器和螯合树脂离子交换床的组合，以减少二价或多价金属污染物。 然后，将过滤的材料在含有双极和阴离子膜的多室电渗析中进行处理。

公开(公告)号：US5455359B1

公开(公告)日：1998-05-05

申请号：US13033093

申请日：1993-10-01

Applicant: RES CORP TECHNOLOGIES INC

Inventor： IPPOLITI THOMAS J ,  MABBOTT GARY A ,  HANS JEREMY ,  STOHLMEYER MICHELLE

IPC: B01J20/285 ,  B01J20/26 ,  B01J45/00 ,  C02F1/28 ,  C07D233/00 ,  C07D233/54 ,  C07D233/64 ,  C08F8/30 ,  C08F12/00 ,  C08F12/26 ,  C08F20/00 ,  C08F20/18 ,  C08F20/36 ,  C08F26/00 ,  C08F26/06 ,  C08J5/18 ,  C09D5/08 ,  G01N27/447 ,  G01N30/88 ,  C07D403/06 ,  C07D403/08 ,  C07D403/10

CPC classification number: C07D233/64 ,  B01J45/00 ,  C08F12/26 ,  C08F20/36 ,  C08F26/06 ,  G01N27/44747