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    Preparation of stabilized percarbonate
    11.
    发明专利
    Preparation of stabilized percarbonate 失效
    稳定性过氧化氢的制备

    公开(公告)号：JPS5722103A

    公开(公告)日：1982-02-05

    申请号：JP9593480

    申请日：1980-07-14

    Applicant: Kao Corp

    Inventor： TAMURA JIYUNICHI ,  SHIOZAKI YUKIKO

    IPC: C01B15/10

    Abstract: PURPOSE: To prepare a stabilized percarbonate, by reacting hydrogen peroxide with a carbonate in the presence of amine salts of aminopolycarboxylic acids consisting of nitrilotriacetic acid, ethylenediaminetetraaceitic acid, and diethylenetriaminepentaacetic acid.
    CONSTITUTION: In preparing a percarbonate by reacting hydrogen peroxide with a carbonate, 2W50 mil mole per kg carbonate of one or more amine salts of aminopolycarboxylic acids consisting of nitrilotriacetic acid, ethylenediaminetetraacetic acid, and diethylenetriaminepentaacetic acid is added to the reaction system. 10W 500 mil mole calculated as phosphorus or silicon per kg carbonate of phosphate or silicate may be added to the reaction system.
    COPYRIGHT: (C)1982,JPO&Japio

    Abstract translation: 目的：为了制备稳定的过碳酸盐，通过在由次氮基三乙酸，乙二胺四乙酸和二亚乙基三胺五乙酸组成的氨基多羧酸的胺盐存在下，使过氧化氢与碳酸盐反应。 构成：在通过使过氧化氢与碳酸盐反应制备过碳酸盐时，向反应体系中加入2-50密耳摩尔/ kg碳酸盐的一种或多种由次氮基三乙酸，乙二胺四乙酸和二亚乙基三胺五乙酸组成的氨基多羧酸胺盐。 计算为磷或硅/磷酸盐或硅酸盐的每千克碳酸盐的10-500密尔摩尔可以加入到反应体系中。

    HOLLOW GRANULAR PERCARBONATE AND ITS MANUFACTURE
    12.
    发明专利
    HOLLOW GRANULAR PERCARBONATE AND ITS MANUFACTURE 失效

    公开(公告)号：JPS5717409A

    公开(公告)日：1982-01-29

    申请号：JP9126180

    申请日：1980-07-04

    Applicant: KAO CORP

    Inventor： TAKEDA TSUNESHI ,  OOTSUJI KAZUYA ,  TAMURA JIYUNICHI ,  MORII YOSHIKAZU ,  HIGASHIWAKI MICHIO ,  NAKATANI YOSHITAKA

    IPC: C01B15/10

    Abstract: PURPOSE:To obtain hollow granular percarbonate having a high dissolving speed and hardly causing disappearance of available oxygen even after long-term storage by maintaining the composition of an aqueous soln. contg. carbonate and hydrogen peroxide as mother liquor in a specified range and crystallizing percarbonate. CONSTITUTION:An aqueous soln. contg. 6.0-15.0wt% carbonate and 1.5- 6.0wt% hydrogen peroxide is prepared as mother liquor, and by adding granular carbonate and an aqueous soln. of hydrogen peroxide while maintaining 6.0- 15.0wt% carbonate, 1.5-6.0wt% hydrogen peroxide and >=2mol carbonate to 3mol hydrogen peroxide, percarbonate is crystallized. Said carbonate and hydrogen peroxide are added simultaneously or alternately and continuously or intermittently.

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