利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

28 条记录 (耗时 0.025 秒)

    Extraction of metals in carbon dioxide and chelating agents therefor
    4.
    发明授权
    Extraction of metals in carbon dioxide and chelating agents therefor 失效
    二氧化碳和螯合剂中金属的萃取

    公开(公告)号：US5641887A

    公开(公告)日：1997-06-24

    申请号：US223105

    申请日：1994-04-01

    申请人： Eric J. Beckman ,  Alan J. Russell

    发明人： Eric J. Beckman ,  Alan J. Russell

    IPC分类号： C07D213/38 ,  C23C22/02 ,  C07D401/06

    CPC分类号： B82Y30/00 ,  C07D213/38 ,  C23C22/02 ,  Y02P20/544

    摘要： The present invention provides a chelating agent suitable for chelating metals metals in liquid or supercritical carbon dioxide. The chelating agent comprises generally a conventional chelating group and a CO.sub.2 -soluble functional group covalently attached to the chelating group. Examples of suitable CO.sub.2 -soluble functional groups include fluorinated polyether groups, silicone groups, fluorinated polyalkyl groups, phosphazene groups and fluorinated polyacrylate groups. The present invention also provides a method of extracting a metal from a matrix containing at least one other material and the metal using such CO.sub.2 -soluble chelating agents.

    摘要翻译： 本发明提供了一种适用于螯合液态或超临界二氧化碳金属金属的螯合剂。 螯合剂通常包括共价连接到螯合基团的常规螯合基团和二氧化碳可溶性官能团。 合适的二氧化碳可溶性官能团的实例包括氟化聚醚基团，硅氧烷基团，氟化聚烷基基团，磷腈基团和氟化聚丙烯酸酯基团。 本发明还提供一种从含有至少一种其它材料的基质中提取金属的方法，并且使用这种可溶于二氧化碳的螯合剂从金属中提取金属。

    Protein-containing polymers and a method of synthesis of protein-containing polymers in organic solvents
    5.
    发明授权
    Protein-containing polymers and a method of synthesis of protein-containing polymers in organic solvents 失效
    含蛋白质的聚合物和在有机溶剂中合成含蛋白质的聚合物的方法

    公开(公告)号：US5482996A

    公开(公告)日：1996-01-09

    申请号：US165712

    申请日：1993-12-08

    申请人： Alan J. Russell ,  Eric J. Beckman

    发明人： Alan J. Russell ,  Eric J. Beckman

    IPC分类号： C08G18/64 ,  C08G63/46 ,  C08L89/00 ,  C08G63/48

    CPC分类号： C08G18/6446 ,  C08G63/46

    摘要： The present invention provides protein-containing polymers and a general method of incorporating biologically active proteins into a polymer matrix via copolymerization in organic solvents. Preferably, the protein is an active enzyme which maintains its activity in the polymeric matrix. The proteins are first solubilized in organic solvents by covalent attachment of a modifying moiety such as a polyalkylene oxide. The polyalkylene oxide is functionalized with a functional group enabling copolymerization in organic solvents with an organic-soluble comonomer.

    摘要翻译： 本发明提供含蛋白质的聚合物和通过在有机溶剂中共聚合将生物活性蛋白质并入聚合物基质的一般方法。 优选地，蛋白质是在聚合物基质中保持其活性的活性酶。 首先通过共价连接修饰部分如聚环氧烷将蛋白质溶解在有机溶剂中。 聚氧化烯官能化官能团，可在有机溶剂中与有机溶解的共聚单体共聚。

    Further extractions of metals in carbon dioxide and chelating agents therefor
    6.
    发明授权
    Further extractions of metals in carbon dioxide and chelating agents therefor 失效
    进一步提取二氧化碳中的金属及其螯合剂

    公开(公告)号：US5872257A

    公开(公告)日：1999-02-16

    申请号：US831999

    申请日：1997-04-01

    申请人： Eric J. Beckman ,  Alan J. Russell

    发明人： Eric J. Beckman ,  Alan J. Russell

    IPC分类号： C07D213/38 ,  C23C22/02 ,  C07D401/06

    CPC分类号： C23F11/16 ,  B82Y30/00 ,  C07D213/38 ,  C23C22/02 ,  Y02P20/544

    摘要： The present invention provides a chelating agent suitable for forming coordinated complexes with a metal in liquid and supercritical carbon dioxide of covalently bonded (i) a chelating group selected from the group consisting of a dithio carbamate, a thiol group, and a picolyl amine group, (ii) a non-electron withdrawing spacer group selected from (CH.sub.2).sub.x ; and (iii) a CO.sub.2 -soluble functional group selected from (CF.sub.2 CF.sub.2 O).sub.X, (CF.sub.2 O).sub.X, (CF.sub.2).sub.X, and �CF.sub.2 (CF.sub.3 FO)!.sub.x. X is selected to be greater or equal to 3 and to minimize the electron withdrawing effect of the CO.sub.2 -soluble functional group and to achieve a chelating agent solubility of at least a 10.sup.-3 gm/gm CO.sub.2. A solubility of at least 10.sup.-2 gm/gm CO.sub.2 is attained at a temperature in the range of approximately 0.degree. to 100.degree. C. and a pressure of approximately 500 to 5000 psi.

    摘要翻译： 本发明提供了一种螯合剂，其适用于与液态的金属和超临界二氧化碳形成配位络合物，共价键合（i）选自二硫代氨基甲酸酯，硫醇基和吡啶甲基胺基的螯合基团， （ii）选自（CH 2）x的非吸电子间隔基团; 和（iii）选自（CF 2 CF 2 O）X，（CF 2 O）X，（CF 2）X和[CF 2（CF 3））x的二氧化碳可溶性官能团。 X选择为大于或等于3，并且使二氧化碳可溶性官能团的吸电子效应最小化，并达到至少10-3克/克二氧化碳的螯合剂溶解度。 在约0℃至100℃的温度和约500至5000psi压力下的温度下可获得至少10-2克/克CO 2的溶解度。