Process for granulating perborate monohydrate
    51.
    发明授权
    Process for granulating perborate monohydrate 失效
    用于颗粒状单晶盐酸盐的方法

    公开(公告)号:US5182054A

    公开(公告)日:1993-01-26

    申请号:US834302

    申请日:1992-02-19

    IPC分类号: C01B15/12 C11D3/39

    CPC分类号: C11D3/3942 C01B15/12

    摘要: The process of preparing granules of sodium perborate monohydrate having an increased density by dry-compacting a mixture of sodium perborate monohydrate and from about 0.2 to about 30% by weight of a compacting aid, based on the weight of the mixture. The compacting aid is selected from the group consisting of an alkali metal salt, alkaline earth metal salt, carbohydrate, anionic surfactant, and nonionic surfactant. After forming a compactate of the mixture, the compactate is size-reduced to obtain granules having the desired particle size.

    摘要翻译: PCT No.PCT / EP90 / 01320 Sec。 371日期:1992年2月19日 102(e)日期1992年2月19日PCT提交1990年8月10日PCT公布。 出版物WO91 / 02696 日本1991年3月7日。通过干燥压制过硼酸钠一水合物和约0.2至约30重量%的压实助剂的混合物,制备具有增加密度的过硼酸钠一水合物颗粒的方法, 混合物。 压实助剂选自碱金属盐,碱土金属盐,碳水化合物,阴离子表面活性剂和非离子表面活性剂。 在形成混合物的压实物之后,将压实体大小减小以获得具有所需粒度的颗粒。

    Process for working up water-soluble cellulose derivatives having high
flocculation points
    52.
    发明授权
    Process for working up water-soluble cellulose derivatives having high flocculation points 失效
    处理高絮凝点的水溶性纤维素衍生物的方法

    公开(公告)号:US5013832A

    公开(公告)日:1991-05-07

    申请号:US86439

    申请日:1987-08-17

    IPC分类号: C08B11/20

    CPC分类号: C08B11/20

    摘要: A process for working up water-soluble cellulose derivatives, more especially with flocculation points above 85.degree. C., after removal by condensation of readily volatile constituents of the crude product mixture resulting from an etherification reaction, by suspension of the crude product in hot water and subsequent separation of the suspension and washing liquids, wherein the separation of the suspension and washing liquids is carried out at elevated temperature and under pressure applied to the separator as a whole.

    摘要翻译: 通过将粗产物悬浮在热水中,处理水溶性纤维素衍生物的方法,更特别是絮凝点高于85℃,通过由醚化反应产生的粗产物混合物容易挥发成分的冷凝除去后, 以及随后分离悬浮液和洗涤液体,其中悬浮液和洗涤液体的分离在升高的温度和施加到分离器整体的压力下进行。