8.
    发明专利
    未知

    公开(公告)号:IT7829682D0

    公开(公告)日:1978-11-10

    申请号:IT2968278

    申请日:1978-11-10

    Applicant: SNIA VISCOSA

    Abstract: A process for preparing alpha , omega -dicarboxylic acids of the formula HOOC-(CH2)n-COOH in which n=6 to 10 is disclosed. The process consists of the catalytic oxidation of a compound of formula X-(CH2)n-CHO wherein X is CHO or COOH and n is 6 to 10 by O2 pure or in mixture with inert gas, possibly under pressure, in at least one polar solvent, at a temperature comprised between 20 DEG and 90 DEG C. and in the presence of a catalyst. The catalyst is chosen from the group consisting of at least one cobalt (II) salt and one ferrous salt. The amount of the catalyst is

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