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7 条记录 (耗时 0.019 秒)

    Amine-oxides
    1.
    发明授权
    Amine-oxides 失效
    胺氧化物

    公开(公告)号：US5409532A

    公开(公告)日：1995-04-25

    申请号：US7167

    申请日：1993-01-21

    申请人： Stephan Astegger ,  Dieter Eichinger ,  Heinz Falk ,  Gunter Teubl

    发明人： Stephan Astegger ,  Dieter Eichinger ,  Heinz Falk ,  Gunter Teubl

    IPC分类号： C07C211/63 ,  C07C291/04 ,  C08B1/00 ,  D01C1/00 ,  G01J3/36 ,  G01N21/71 ,  C08L1/00 ,  C08L1/02

    CPC分类号： C07C291/04

    摘要： Amine-oxides of the general formula: ##STR1## wherein R.sub.1 and R.sub.2 are alkyl groups with 1 to 4 C-atoms, R.sub.3 is hydrogen, a hydroxyl group or an alkoxy group with 1 to 4 C-atoms and m and n are whole numbers which fulfil the conditions 1.ltoreq.m.ltoreq.8 and 0.ltoreq.n.ltoreq.4 respectively, with the proviso that n is not 0 if R.sub.3 is a hydroxyl group or an alkoxy group, can be used with advantage for the preparation of mouldable or spinnable cellulose solutions which have a reduced tendency to crystallise.

    摘要翻译： 具有以下通式的胺氧化物：其中R 1和R 2是具有1至4个C原子的烷基，R 3是氢，羟基或具有1至4个C原子的烷氧基，m和 n是分别满足条件1

    Process for purifying an aqueous solution of N-methyl-morpholine N-oxide
    4.
    发明授权
    Process for purifying an aqueous solution of N-methyl-morpholine N-oxide 失效
    纯化N-甲基 - 吗啉N-氧化物水溶液的方法

    公开(公告)号：US5053138A

    公开(公告)日：1991-10-01

    申请号：US595562

    申请日：1990-10-11

    申请人： Dietmar Korger ,  Dieter Eichinger ,  Stephan Astegger ,  Karin Weinzierl ,  Johann Manner

    发明人： Dietmar Korger ,  Dieter Eichinger ,  Stephan Astegger ,  Karin Weinzierl ,  Johann Manner

    IPC分类号： B01D15/04 ,  B01J41/04 ,  D01F2/02 ,  D01F13/02

    CPC分类号： B01J41/043 ,  D01F13/02 ,  Y02P70/627

    摘要： There is disclosed a process for purifying aqueous solutions of N-methyl-morpholine N-oxide (NMMO), such as spinning bath solutions incurred in the production of cellulose products, in which process the solutions to be purified are contacted with an anion exchanger and the purified solutions are separated from the anion exchanger. The process is carried out in one step and the anion exchanger, as functional groups, exclusively contains quaternary tetraalkylammonium groups of the formulae--CH.sub.2 --N.sup..sym. (CH.sub.3).sub.3 X.sup..crclbar. or --CH.sub.2 --N.sup..sym. [(CH.sub.3).sub.2 (CH.sub.2 OH)]X.sup..crclbar.wherein X.sup..crclbar. represents the anion of an inorganic or organic acid. After this, the anion exchanger is regenerated with an aqueous acidic solution.

    摘要翻译： 公开了一种纯化N-甲基吗啉N-氧化物（NMMO）的水溶液的方法，例如在纤维素产物生产中产生的纺丝浴溶液，其中待纯化的溶液与阴离子交换剂接触， 将纯化的溶液与阴离子交换剂分离。 该方法在一个步骤中进行，阴离子交换剂作为官能团，仅包含式-CH 2 -N（+）（CH 3）3 X（ - ）或-CH 2 -N（+）[（CH 3））的季铵四烷基铵基团 ）2（CH 2 OH）] X（ - ）其中X（ - ）表示无机或有机酸的阴离子。 之后，用酸性水溶液再生阴离子交换剂。

    Method of removing amines
    6.
    发明授权
    Method of removing amines 失效
    去除胺的方法

    公开(公告)号：US5043075A

    公开(公告)日：1991-08-27

    申请号：US528578

    申请日：1990-05-24

    申请人： Korger Dietmar ,  Stephan Astegger ,  Dieter Eichinger ,  Heinrich Firgo

    发明人： Korger Dietmar ,  Stephan Astegger ,  Dieter Eichinger ,  Heinrich Firgo

    IPC分类号： C07D295/02 ,  B01J39/04 ,  C02F1/42 ,  C07C209/86

    CPC分类号： C02F1/42 ,  B01J39/046

    摘要： There is disclosed a method of removing amines from aqueous solutions thereof, in particular from waste waters obtained in cellulose processing. The aqueous amine solutions are contacted with a cation exchanger whose anchor groups consist of carboxyl groups, in order to charge the cation exchanger with the amines. The charged cation exchanger is treated with an aqueous solution of a weak acid having a pK.sub.a larger than 3.0 in order to elute the amines. The eluate is processed by way of distillation, wherein a portion of the weak acid is separated from the amines and reclaimed, if desired.The method according to the invention offers a simple and cheap way of disposing amine-containing waste waters.

    摘要翻译： 公开了从其水溶液，特别是从纤维素处理中获得的废水中除去胺的方法。 胺水溶液与其锚定基团由羧基组成的阳离子交换剂接触，以便用胺向阳离子交换剂充电。 带电阳离子交换剂用pKa大于3.0的弱酸水溶液处理以洗脱胺。 洗脱液通过蒸馏处理，其中一部分弱酸与胺分离，如果需要，回收。 根据本发明的方法提供了一种简单且便宜的处理含胺废水的方法。