Preparation of zinc dihydrocarbon-substituted dithiophosphate
    1.
    发明授权
    Preparation of zinc dihydrocarbon-substituted dithiophosphate 失效
    锌取代二硫代磷酸酯的制备

    公开(公告)号:US3562306A

    公开(公告)日:1971-02-09

    申请号:US3562306D

    申请日:1969-01-16

    CPC classification number: C07F9/02

    Abstract: ZINC DIHYDROCARBON-SUBSTITUTED DITHIOPHOSPHATES, AND IN PARTICULAR ZINC DIARYL DITHIOPHOSPHATES, ARE PREPARED BY NEUTRALIZING THE DIHYDROCARBON-SUBSTITUTED DITHIOPHOSPHORIC ACID WITH ZINC OXIDE IN THE PRESENCE OF A NEUTRALIZATION PROMOTER WHICH IS A ZINC SALT SUCH AS ZINC NITRATE, ZINC CHLORIDE, ZINC SULPHATE, AND THE LIKE; THE ZINC SALT MAY BE ADDED AS SUCH OR FORMED IN SITU BY THE ADDITION OF NITRIC ACID, HYDROCHLORIC ACID OR SULFURIC ACID TO THE MIXTURE OF THE DIHYDROCARBYL DITHIOPHOSPHORIC AND SUFFICIENT ZINC OXIDE TO NEUTRILIZE THE DITHIOPHOSPHORIC ACID AND TO FORM PROMOTING AMOUNTS OF THE INORGANIC ZINC SALT.

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