REVERSIBLE MICROCAPSULE FILTER CAKE
    1.
    发明申请
    REVERSIBLE MICROCAPSULE FILTER CAKE 审中-公开
    可逆微波过滤器

    公开(公告)号:WO2016115198A1

    公开(公告)日:2016-07-21

    申请号:PCT/US2016/013148

    申请日:2016-01-13

    发明人: BIAO, Duan

    IPC分类号: B01D37/03 B01J13/10 B01J13/20

    摘要: The invention teaches a method of efficiently dewatering a microcapsule slurry to form a water re- suspendable filter cake of microcapsules. The process comprises providing an aqueous slurry of microcapsules dispersed in an aqueous solution; adding an agglomeration agent and dispersing the agglomeration agent into the aqueous slurry; adjusting the pH to a pH level sufficient to agglomerate the dispersed microcapsules; and filtering the aqueous slurry of microcapsules by gravity, vacuum or pressure filtration to thereby form a filter cake of dewatered microcapsules. The agglomeration agent is sodium polyphosphate, sodium tetrapolyphosphate, sodium hexametaphosphate, and/or sodium tripolyphosphate; or with anionic microcapsules or coatings even alkaline earth metal salts such as magnesium chloride, calcium chloride or barium chloride, or even aluminum salt such as aluminum chloride.

    摘要翻译: 本发明教导了一种有效地使微胶囊浆液脱水以形成微胶囊的可水悬浮滤饼的方法。 该方法包括提供分散在水溶液中的微胶囊的含水浆液; 加入附聚剂并将附聚剂分散到含水浆料中; 将pH调节至足以使分散的微胶囊附聚的pH水平; 通过重力,真空或压力过滤过滤微胶囊的含水浆料,从而形成脱水微胶囊的滤饼。 聚集剂是聚磷酸钠,四聚磷酸钠,六偏磷酸钠和/或三聚磷酸钠; 或阴离子微胶囊或涂层,甚至碱土金属盐如氯化镁,氯化钙或氯化钡,甚至铝盐如氯化铝。