Conditioning of ion exchangers for adsorption of oxoanions
    22.
    发明授权
    Conditioning of ion exchangers for adsorption of oxoanions 失效
    用于吸附氧阴离子的离子交换剂的调理

    公开(公告)号:US07708892B2

    公开(公告)日:2010-05-04

    申请号:US11810520

    申请日:2007-06-06

    IPC分类号: C02F1/42

    摘要: The present invention relates to the use of inorganic salts for increasing the adsorption of oxoanions and/or thioanalogues thereof to metal-doped ion exchangers, preferably to iron oxide/iron oxyhydroxide-containing ion exchangers, preferably from water or aqueous solutions, and also the conditioning of these metal-doped ion exchangers having increased adsorption behaviour toward oxoanions and/or thioanalogues thereof by using inorganic salts with the exception of amphoteric ion exchangers which have both acidic and basic groups as functional groups.

    摘要翻译: 本发明涉及无机盐用于增加氧化亚氨基和/或其硫代分子对金属掺杂的离子交换剂,优选氧化铁/含羟基氧化铁的离子交换剂,优选水或水溶液的吸附,以及 通过使用无机盐除了具有酸性和碱性基团作为官能团的两性离子交换剂之外,这些金属掺杂的离子交换剂的调理具有增加的吸附行为向氧阴离子和/或硫代分子的吸附行为。

    Method for producing monodisperse gel-type ion exchangers
    25.
    发明申请
    Method for producing monodisperse gel-type ion exchangers 审中-公开
    单分散凝胶型离子交换剂的制造方法

    公开(公告)号:US20060199892A1

    公开(公告)日:2006-09-07

    申请号:US10524923

    申请日:2003-08-02

    IPC分类号: C08F2/16

    摘要: The invention relates to a process for producing monodisperse ion-exchanger gels with a particle size of from 5 to 500 μm, obtainable via a) production of a non-crosslinked monodisperse seed polymer with a particle size of from 0.5 to 20 μm via free-radical-initiated polymerization of monoethylenically unsaturated compounds in the presence of a non-aqueous solvent, b) addition of an active styrene-containing monomer mixture as feed to this seed polymer, permitting the monomer mixture to penetrate into and swell the seed, and polymerizing the mixture at an elevated temperature, if appropriate with one or more repetitions of the steps of addition of monomer mixture, penetration and swelling, and polymerization, and where during the final addition the monomer mixture comprises from 2 to 50% by weight of crosslinking agent, and c) functionalization by means of a sulfonating agent to give cation exchangers or via amidomethylation with subsequent hydrolysis to give anion exchangers, or chloromethylation with subsequent amination.

    摘要翻译: 本发明涉及一种生产粒径为5至500μm的单分散离子交换凝胶的方法,可通过以下步骤获得:a)通过自由基聚合产生粒径为0.5至20μm的非交联单分散种子聚合物, 在非水溶剂的存在下,单烯键式不饱和化合物的自由基引发的聚合,b)加入含有活性苯乙烯的单体混合物作为该种子聚合物的进料,允许单体混合物渗入并膨胀种子,并聚合 混合物在升高的温度下,如果合适,可以通过一次或多次重复加入单体混合物的步骤,渗透和溶胀以及聚合反应,并且其中在最终加入期间,单体混合物包含2-50重量%的交联剂 ,和c)通过磺化剂官能化以产生阳离子交换剂或通过酰胺化甲基化随后水解得到阴离子交换剂,或chl 甲基化,随后胺化。

    Process for preparing selective ion exchangers
    27.
    发明授权
    Process for preparing selective ion exchangers 有权
    制备选择性离子交换剂的方法

    公开(公告)号:US06610753B2

    公开(公告)日:2003-08-26

    申请号:US09371682

    申请日:1999-08-10

    IPC分类号: C08J520

    CPC分类号: B01J45/00

    摘要: The present invention relates to a process for preparing selective ion exchangers based on crosslinked vinylaromatic polymers and containing iminoacetic acid units of the general formulas (I) and (II) wherein X represents hydrogen or an alkali metal ion, by reacting a weak-base anion exchanger bearing primary amino groups with monochloro-acetic acid and/or an alkali metal salt of monochloroacetic acid at a temperature of from 70 to 110° C. and a pH of from 7 to 11.

    摘要翻译: 本发明涉及一种制备基于交联乙烯基芳族聚合物的选择性离子交换剂和含有通式(I)和(II)的亚氨基乙酸单元的方法,其中X表示氢或碱金属离子,通过使弱碱阴离子 具有一氯乙酸和/或一氯乙酸的碱金属盐的伯氨基的交换剂在70至110℃的温度和7至11的pH下进行。

    Picolylamine resins
    28.
    发明授权
    Picolylamine resins 有权
    吡啶基胺树脂

    公开(公告)号:US08563622B2

    公开(公告)日:2013-10-22

    申请号:US12919851

    申请日:2009-02-27

    摘要: The present application relates to novel monodisperse, gel-type or macroporous picolylamine resins which are based on at least one monovinylaromatic compound and at least one polyvinylaromatic compound and/or a (meth)acrylic compound and contain tertiary nitrogen atoms in structures of the general formula (I) as functional group, where R1 is an optionally substituted radical from the group consisting of picolyl, methylquinoline and methylpiperidine, R2 is a radical —(CH2)q—COOR3, R3 is a radical from the group consisting of H, Na and K, m is an integer from 1 to 4, n and p are each, independently of one another, a number in the range from 0.1 to 1.9 and the sum of n and p is 2, q is an integer from 1 to 5 and M is the polymer matrix, a process for preparing them and their uses, in particular the use in hydrometallurgy and electroplating.

    摘要翻译: 本申请涉及基于至少一种单乙烯基芳族化合物和至少一种聚乙烯基芳族化合物和/或(甲基)丙烯酸化合物并且在通式结构中含有叔氮原子的新型单分散,凝胶型或大孔吡甲基胺树脂 (I)作为官能团,其中R 1是由吡啶甲基,甲基喹啉和甲基哌啶组成的组中的任选取代的基团,R 2是 - (CH 2)q -COOR 3基团,R 3是由H,Na和 K,m为1〜4的整数,n和p各自独立地为0.1〜1.9的数,n与p的和为2,q为1〜5的整数, M是聚合物基质,其制备方法及其用途,特别是在湿法冶金和电镀中的应用。