Method for preparing ammonium hydroxyalkyl sulfonates and ammonium
alkanoyl alkyl sulfonates produced therefrom
    1.
    发明授权
    Method for preparing ammonium hydroxyalkyl sulfonates and ammonium alkanoyl alkyl sulfonates produced therefrom 失效
    制备羟基烷基磺酸铵和烷基磺酸烷基磺酸铵的方法

    公开(公告)号:US5739365A

    公开(公告)日:1998-04-14

    申请号:US509018

    申请日:1995-07-28

    IPC分类号: C07C303/02 C07C53/00

    CPC分类号: C07C303/02

    摘要: A method is disclosed for preparing ammonium hydroxyalkyl sulfonate by a process of reacting ammonium bisulfite and alkylene oxide wherein the pH is maintained at a relatively low value throughout most of the time of reaction of ammonium bisulfite and alkylene oxide in order to minimize the quantity of impurities, e.g. alkylene glycol and alkanolamine, in the ammonium hydroxyalkyl sulfonate. Ammonium alkanoyl alkyl sulfonates prepared by reacting such ammonium hydroxyalkyl sulfonates with fatty acids form aqueous solutions which are clear at ambient temperatures, and thus are useful as surfactants in clear liquid products.

    摘要翻译: 公开了通过使亚硫酸氢铵和烯化氧反应制备铵羟烷基磺酸铵的方法,其中在亚硫酸氢铵和环氧烷反应的大部分时间内将pH保持在相对较低的值,以使杂质的量最小化 ,例如 烷基二醇和链烷醇胺,在羟烷基磺酸铵中。 通过使这种羟基烷基磺酸铵与脂肪酸反应制备的烷基磺酸烷基磺酸盐形成在环境温度下是透明的水溶液,因此可用作透明液体产物中的表面活性剂。