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    9.
    发明专利
    未知

    公开(公告)号：FI860753A

    公开(公告)日：1986-02-20

    申请号：FI860753

    申请日：1986-02-20

    Applicant: LUBRIZOL CORP

    Inventor： HOLDEN THOMS FREDERICK ,  BAUMANN ALBERT F

    IPC: C07C67/00 ,  C07C301/00 ,  C07C303/06 ,  C07C303/08 ,  C07C303/32 ,  C07C303/42 ,  C10L1/24 ,  C10L10/08 ,  C10M135/10 ,  C10M159/24 ,  C10N30/04 ,  C10N40/25 ,  C07C

    Abstract: The invention relates to processes for reducing the content of organic, sulfur-containing acid and [illegible] sulfonic acid of low equivalent weight in an acid mass which comprises organic sulfonic acid components and acidic contaminants of inorganic sulfonating agents. The process principally comprises steps in which (a) the acid mass is treated with ammonia in the presence of water in order to neutralise the acids in the said acid mass and in order to form a mixture which contains the ammonium salts of the said acids, (b) the mixture is allowed to separate in order to obtain a lower aqueous phase, which contains water-soluble ammonium salts, and an upper phase which comprises oleophilic alcohol and ammonium salts of the organic sulfonic acids, and (c) at least a part of the said upper phase is retained. The efficiency of reducing undesirable materials in the acid mass can be increased by subjecting the retained upper phase to additional water extractions in the presence of the oleophilic alcohol. The ammonium salts of the organic sulfonic acids, which salts have been obtained in the abovementioned process, can be converted into oil-soluble metal salts by reacting the said ammonium salts with a basically reacting metal compound in quantities and under conditions which are such that metal salts of the said organic sulfonic acids are formed. The metal salts which are prepared in this way can be neutral metal salts or strongly basic metal salts. The neutral and basic metal salts can be used for a number of applications, including lubricating oils and fuels.

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