Amphoteric ion exchangers
    3.
    发明授权
    Amphoteric ion exchangers 有权
    两性离子交换剂

    公开(公告)号:US08211950B2

    公开(公告)日:2012-07-03

    申请号:US12249148

    申请日:2008-10-10

    IPC分类号: C08J5/20 B01J43/00

    CPC分类号: B01J43/00

    摘要: The present invention relates to novel amphoteric ion exchangers which possess not only phthalamide groups of the formula (I) but also —(CH2)mNR1R2 groups and/or if appropriate —(CH2)mNR1R2R3 groups, wherein m is an integer from 1 to 4 and R1, R2, R3 in each case independently of one another are hydrogen, —CH3, —CH2CH3, —CH2CH2CH3, benzyl, —OCH2CH3 or —CH2CH2OH and X is H or Na or K, to a process for production thereof and also use thereof.

    摘要翻译: 本发明涉及新型的两性离子交换剂,其不仅具有式(I)的邻苯二甲酰胺基团,而且还具有 - (CH 2)m N R 1 R 2基团和/或如果合适的 - (CH 2)m N R 21 R 3基团,其中m是1至4的整数 R 1,R 2,R 3各自独立地为氢,-CH 3,-CH 2 CH 3,-CH 2 CH 2 CH 3,苄基,-OCH 2 CH 3或-CH 2 CH 2 OH,X为H或Na或K,为其制备方法,并且还使用 其中。

    AMPHOTERIC ION EXCHANGERS
    4.
    发明申请
    AMPHOTERIC ION EXCHANGERS 有权
    AMPHOTERIC离子交换剂

    公开(公告)号:US20090107918A1

    公开(公告)日:2009-04-30

    申请号:US12249148

    申请日:2008-10-10

    IPC分类号: C08J5/20 B01D15/36

    CPC分类号: B01J43/00

    摘要: The present invention relates to novel amphoteric ion exchangers which possess not only phthalamide groups of the formula (I) but also —(CH2)mNR1R2 groups and/or if appropriate —(CH2)mNR1R2R3 groups, wherein m is an integer from 1 to 4 and R1, R2, R3 in each case independently of one another are hydrogen, —CH3, —CH2CH3, —CH2CH2CH3, benzyl, —OCH2CH3 or —CH2CH2OH and X is H or Na or K, to a process for production thereof and also use thereof.

    摘要翻译: 本发明涉及新型的两性离子交换剂,其不仅具有式(I)的邻苯二甲酰胺基团,而且还具有 - (CH 2)m N R 1 R 2基团和/或如果合适的 - (CH 2)m N R 21 R 3基团,其中m是1至4的整数 R 1,R 2,R 3各自独立地为氢,-CH 3,-CH 2 CH 3,-CH 2 CH 2 CH 3,苄基,-OCH 2 CH 3或-CH 2 CH 2 OH,X为H或Na或K,为其制备方法,并且还使用 其中。

    Process for preparing succinic anhydride
    8.
    发明授权
    Process for preparing succinic anhydride 失效
    制备琥珀酸酐的方法

    公开(公告)号:US5616730A

    公开(公告)日:1997-04-01

    申请号:US468586

    申请日:1995-06-06

    CPC分类号: C07C51/567

    摘要: Succinic anhydride (SA) can be prepared by catalytic hydrogenation of maleic anhydride (MA) with hydrogen in the liquid phase, by reacting a starting material composed of from 5 to 100% by weight of MA and from 95 to 0% by weight of SA, based on the total weight of MA and SA, at from 120.degree. to 150.degree. C. and a H.sub.2 pressure of from 10 to 150 bar over a Raney skeleton catalyst or a platinum group metal catalyst.

    摘要翻译: 琥珀酸酐(SA)可以通过马来酸酐(MA)与氢气在液相中的催化氢化,通过使由5〜100重量%的MA和95〜0重量%的SA组成的原料反应来制备 基于MA和SA的总重量,在120-150℃下,在阮内骨架催化剂或铂族金属催化剂上的H 2压力为10至150巴。