Method for removing phosphate from aqueous solutions
    52.
    发明申请
    Method for removing phosphate from aqueous solutions 审中-公开
    从水溶液中除去磷酸盐的方法

    公开(公告)号:US20080262285A1

    公开(公告)日:2008-10-23

    申请号:US12148627

    申请日:2008-04-21

    CPC classification number: B01J41/04 B01J45/00 B01J47/016 C02F1/42 C02F2101/105

    Abstract: A method for removing phosphate ion from an aqueous solution containing phosphate ion using a resin loaded with a hydrous oxide of an amphoteric metal ion. The resin loaded with a hydrous oxide of an amphoteric metal ion is produced by combining a resin with at least two bed volumes of an aqueous solution containing a salt of the amphoteric metal ion, and having a metal ion concentration of at least 5%, and then treating with an aqueous alkali metal hydroxide solution.

    Abstract translation: 使用负载有两性金属离子的含水氧化物的树脂从含有磷酸根离子的水溶液中除去磷酸根离子的方法。 负载两性金属离子的水合氧化物的树脂通过将树脂与至少两床体积的含有两性金属离子的盐并且具有至少5%的金属离子浓度的水溶液组合而制备,以及 然后用碱金属氢氧化物水溶液处理。

    Per (3,6-anhydro) cyclodextrin derivatives, preparation thereof and use thereof for transporting metal elements to biological targets or for decontaminating biological targets of fluids
    56.
    发明申请
    Per (3,6-anhydro) cyclodextrin derivatives, preparation thereof and use thereof for transporting metal elements to biological targets or for decontaminating biological targets of fluids 审中-公开
    每(3,6-脱水)环糊精衍生物,其制备及其用于将金属元素输送到生物靶或用于净化流体生物靶的用途

    公开(公告)号:US20070148090A1

    公开(公告)日:2007-06-28

    申请号:US10544680

    申请日:2004-02-06

    Abstract: The present invention relates to a per(3,6-anhydro)cyclodextrin derivative corresponding to one of the following formulae (I) or (II): in which: at least one of the values R1 represents a radical chosen from peptides, proteins, lipids, oligonucleotides or polynucleotides, oligosaccharides or polysaccharides, and biopolymers, and the other possible values R1, which may be identical or different, represent a group chosen from OH, OR3, OM, SH, SR3, OCOR3, NH2, NHR2,NR3R4, CONH2, CONHR3, CONR3R4, CN, COOR3, OCH2COOH, COOH, OSO2R3, N3 and R3, in which R3 and R4, which may be identical or different, represent a saturated or unsaturated, aliphatic or aromatic, hydrocarbon-based group optionally substituted with halogen atoms, which may contain one or more hetero atoms chosen from O, S and N, M represents a monovalent cation chosen from alkali metal cations; the values R2 represent a single bond or a spacer group, and n is equal to 6, 7 or 8. These derivatives are used in particular for transporting metal elements to biological targets or for decontaminating biological targets or fluids.

    Abstract translation: 本发明涉及对应于下列通式(I)或(II)之一的每(3,6-脱水)环糊精衍生物:其中:R 1至 选自肽,蛋白质,脂质,寡核苷酸或多核苷酸,寡糖或多糖和生物聚合物的基团,以及可以相同或不同的其它可能的值代表选自OH, OR 3,OM,SH,SR 3,OCOR 3,NH 2,NHR 2, / SUP>,NR 3,R 4,CONH 2,CONHR 3,CONR 3, CN,COOR 3,OCH 2 COOH,COOH,OSO 2 R O, 3,N 3和R 3,其中R 3和R 4可以是 相同或不同,表示任选被卤素原子取代的饱和或不饱和的脂族或芳族烃基,其可以含有一个或多个杂原子 选自O,S和N的M,M表示选自碱金属阳离子的一价阳离子; 值R 2表示单键或间隔基,n等于6,7或8.这些衍生物特别用于将金属元素输送到生物靶标或用于净化生物靶标或 流体。

    Method of reclaiming a well completion brine solutions using an organic chelant

    公开(公告)号:US07172703B2

    公开(公告)日:2007-02-06

    申请号:US11145281

    申请日:2005-06-03

    Abstract: A method of reclaiming a well completion brine solution by using an organic chelant that is capable of discriminating between (i) iron and/or non-zinc heavy metals; and (ii) calcium and zinc. The chelant is of the formula: and may be either a neutral compound, a corresponding salt, or a corresponding quaternary salt, wherein: D is F—A (Y3)u(Y4)v; R is independently selected from Cp or CpC(O); Cp is a C1–C36 hydrocarbyl group, optionally substituted with one or more substituents selected the group consisting of halogen, hydroxyl, sulfate, CH2CO2Z or —(CH2)nPO(OZ)2 groups; each A is independently selected from —N and —P; Y1 is independently selected from J, —[(F)—A(J)]wY6 and R; J, R1, Y2, Y3, Y4, Y5 and Y6 are independently selected from the group consisting of —H, R, —(F)nCO2Z and —(CH2)nPO(OZ)2; each F is independently selected from a C1–C12 hydrocarbyl group, optionally substituted with one or more substituents selected the group consisting of halogen, hydroxyl, sulfate, CH2CO2Z or —(CH2)nPO(OZ)2 groups; Z is —H or a balanced counterion of an alkali or alkaline earth metal or NH4+; m is 0 to 7; n is 1 to 7; r+s+t is 1 or 2; u+v is 1 or 2; and w is 0 to 7 provided when m is 0, no more than one of R1, Y1, Y2 and Y5 can be —H.

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