Process for the production of alkali percarbonate
    1.
    发明授权
    Process for the production of alkali percarbonate 失效
    生产阿尔卡里百草枯的方法

    公开(公告)号:US3864454A

    公开(公告)日:1975-02-04

    申请号:US36524973

    申请日:1973-05-30

    Applicant: DEGUSSA

    CPC classification number: C01B15/04 C01B15/103

    Abstract: Alkali percarbonates are produced by spraying solid alkali carbonate with aqueous hydrogen peroxide at 35* to 60* C. and the alkali percarbonate formed following the hydrogen peroxide addition is either held for less than 30 minutes at about 40* to 60* C. or for longer than 30 minutes at 30* to 40* C. in a thin layer and then is dried at 20* to 90* C. either in pure carbon dioxide or an air stream containing carbon dioxide.

    Abstract translation: 碱性碳酸过碳酸盐是通过在35-60℃下用过氧化氢水溶液喷洒固体碱金属碳酸盐而制备的,并且在过氧化氢添加后形成的碱过碳酸盐在约40-60℃下保持少于30分钟 在30〜40℃下,在30℃以上30分钟以上,然后在纯二氧化碳或含有二氧化碳的空气流中,在20〜90℃干燥。

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