Patents Assigned to Distugil S.A.
  • Production of chloroprene
    Patent number: 4308410
    Abstract: Chloroprene is produced by continuous dehydrochlorinating 3,4-dichlorobutene- 1 at 40.degree.-70.degree. C. in two phase liquid mixture of water and alcohol with standing alkali metal hydroxide of not more than 10% by weight in aqueous phase and separating an organic liquid phase containing chloroprene from the resulting mixture.
    Type: Grant
    Filed: May 12, 1978
    Date of Patent: December 29, 1981
    Assignees: BP Chemicals Limited, Distugil S.A.
    Inventors: Antony H. P. Hall, Jean P. Merle