公开(公告)号：JPS5926919A

公开(公告)日：1984-02-13

申请号：JP13709882

申请日：1982-08-06

Applicant: Kao Corp

Inventor： SASA YOSHIMASA ,  FUJITA TADAAKI ,  TAKEDA TSUNESHI ,  HAISHI TOMOYUKI

IPC: C11D3/12

Abstract: PURPOSE: To prepare a crystalline aluminosilicate composed of fine particles, in high yield and productivity, by mixing a concentrated aqueous solution of a silicate with an aqueous solution of an aluminate, gelatinizing and crystallizing the mixture, and at the same time, pulverizing the coarse crystals.
CONSTITUTION: A concentrated aqueous solution of a water-soluble aluminate having a concentration of 30W70wt% is mixed with an aqueous solution of a water-soluble silicate having a concentration of 30W50wt% at a ratio to obtain the molar ratios (Na
2 O:Al
2 O
3 :SiO
2 :H
2 O) of (1.2W2.5):1:(1.5W3.0):(15W35), and the mixture is agitated, gelatinized and crystallized to obtain the crystals of aluminosilicate. In the above process, the system is heated at 60W110°C after the completion of the gelation, and the mixture is recycled, pulverized and crystallized to obtain the slurry of fine aluminate crystals having a particle diameter of 3W5μ, atmost 10μ. The slurry is neutralized with an acid and spray-dried to obtain fine crystals of aluminate having excellent characteristics as the builder for a detergent in high yield.
COPYRIGHT: (C)1984,JPO&Japio

Abstract translation: 目的：通过将硅酸盐的浓缩水溶液与铝酸盐水溶液混合，将高浓度的水溶液与铝酸钠水溶液混合，使得混合物凝胶化并使其结晶，从而以高产率和高生产率制备由细颗粒组成的结晶硅铝酸盐，同时， 晶体。 组成：将浓度为30-70重量％的水溶性铝酸盐的浓缩水溶液与浓度为30-50重量％的水溶性硅酸盐的水溶液以一定比例混合，以获得摩尔比（Na 2 O ：Al 2 O 3 :SiO 2 :H 2 O）：（1.2-2.5）：1：（1.5-3.0）:( 15-35），搅拌混合物，凝胶化并结晶，得到硅铝酸晶体。 在上述过程中，在凝胶化完成后将体系加热至60-110℃，将混合物再循环，粉碎和结晶，得到粒径为3-5μm的细铝酸盐晶体浆料 10亩。 用酸中和该浆料并进行喷雾干燥以获得具有优异特性的细小的铝酸盐晶体，作为洗涤剂的助洗剂以高产率。