Process for separating phthalimido-peroxycaproic acid from solutions in
organic solvents
    3.
    发明授权
    Process for separating phthalimido-peroxycaproic acid from solutions in organic solvents 失效
    从有机溶剂中的溶液中分离苯二甲酰亚氨基过氧己酸的方法

    公开(公告)号:US5487818A

    公开(公告)日:1996-01-30

    申请号:US285927

    申请日:1994-08-04

    IPC分类号: C07D209/48 B01D1/14

    CPC分类号: C07D209/48

    摘要: A process for separating phthalimido-peroxycaproic acid (PAP) from solutions in organic solvents, wherein the organic solvents have a solubility in water equal to or lower to 10% by weight, is provided. The process employs the following steps:(a) dispersing the solution in an aqueous medium to form a suspension;(b) bubbling an inert gas into the resulting suspension; and(c) recovering PAP from the suspension.

    摘要翻译: 提供了在有机溶剂中的溶液中分离苯二甲酰亚氨基 - 过氧己酸(PAP)的方法,其中有机溶剂在水中的溶解度等于或低于10重量%。 该方法采用以下步骤:(a)将溶液分散在水性介质中以形成悬浮液; (b)将惰性气体鼓入所得悬浮液中; 和(c)从暂停中恢复PAP。

    Preparation of solutions of imido-alkancarboxylic acids suitable for
peroxidation processes
    7.
    发明授权
    Preparation of solutions of imido-alkancarboxylic acids suitable for peroxidation processes 失效
    适用于过氧化反应的亚氨基 - 链烷酸的溶液的制备

    公开(公告)号:US5703242A

    公开(公告)日:1997-12-30

    申请号:US777699

    申请日:1996-12-20

    CPC分类号: C07D209/48 C11D3/3945

    摘要: Purification process of imido-alkancaboxylic acids from contaminants represented by acid-carboxylic, lactam or aminoacids and water comprising:A) Preparation of the imido-alkancarboxylic acid precursor by reaction of an anhydride a1) or the corresponding acids, with an aminoacid b1) with water; or a1) with a lactam b2) and water; at temperatures comprised between 100.degree. and 250.degree. C., under pressure of an inert gas from 1 to 30 bar, for reaction times from 2 to 20 hours; wherein the ratio by moles between a1/(b1 or b2)/water is comprised between 1/1.05-1.1/0.5-2.5; optional addition of water such that it is at least, of 2 moles for mole of a1); B) discharge of the precursor obtained in phase A) in a solvent immiscible with water; C) separation of the aqueous phases from the organic phase; D) recovery of the organic phase for the successive peroxidation reaction.

    摘要翻译: 由酸 - 羧酸,内酰胺或氨基酸和水代表的污染物中的亚氨基 - 烷基仲烷酸的纯化过程包括:A)通过酸酐a1)或其相应的酸与氨基酸b1)反应制备亚氨基 - 链烷羧酸前体 水; 或a1)与内酰胺b2)和水; 在100至250℃的温度下,在惰性气体压力为1至30巴下,反应时间为2至20小时; 其中a1 /(b1或b2)/水之间的摩尔比在1 / 1.05-1.1 / 0.5-2.5之间; 任选地加入水,使得其至少为摩尔a1)2摩尔; B)将A相中得到的前体排放在与水不混溶的溶剂中; C)水相与有机相的分离; D)回收有机相用于连续的过氧化反应。

    Process for the manufacture of zeolites 4A having a high crystallinity
and a fine granulometry and being particularly suitable for the
formulation of detergent compositions
    9.
    发明授权
    Process for the manufacture of zeolites 4A having a high crystallinity and a fine granulometry and being particularly suitable for the formulation of detergent compositions 失效
    用于制造具有高结晶度和细粒度测定法的沸石4A的方法,并且特别适用于制备洗涤剂组合物

    公开(公告)号:US4649036A

    公开(公告)日:1987-03-10

    申请号:US845495

    申请日:1986-03-31

    摘要: The synthesis of zeolites 4A having a high crystallinity and a fine granulometry is disclosed, by the addition in a first stage of a sodium silicate solution to a sodium aluminate solution (containing an excess of NaOH and heated to a temperature of from 50.degree. to 100.degree. C.), and by the crystallization in a second stage at a temperature of from 70.degree. to 105.degree. C., characterized in that the temperature of the sodium silicate solution is lower by at least twenty Centigrade degrees than that of the sodium aluminate solution, the molar ratios SiO.sub.2 :H.sub.2 O and SiO.sub.2 :Na.sub.2 O in the sodium silicate solution being respectively from 0.030 to 0.150 and from 1.95 to 2.30, and the weight ratio between the reaction mother liquor and the zeolite thus formed being from 6.5 to 20.

    摘要翻译: 通过在硅酸钠溶液的第一阶段向铝酸钠溶液中加入(含有过量的NaOH并加热至50至100℃的温度),公开了具有高结晶度和精细粒度测定法的沸石4A的合成 ℃),并且通过在70℃至105℃的温度下在第二阶段中结晶,其特征在于,硅酸钠溶液的温度比铝酸钠的温度低至少二十摄氏度 溶液中,硅酸钠溶液中SiO 2 :H 2 O和SiO 2 :Na 2 O的摩尔比分别为0.030〜0.150和1.95〜2.30,反应母液与由此形成的沸石的重量比为6.5〜20。