公开(公告)号：FR1276260A

公开(公告)日：1961-11-17

申请号：FR847001

申请日：1960-12-15

Applicant: BASF AG

Inventor： ADAM KARL ,  AREND WOLFGANG ,  FRICK REINHOLD ,  HAAS HANS

IPC: H01M4/36

公开(公告)号：GB905121A

公开(公告)日：1962-09-05

申请号：GB3762360

申请日：1960-11-02

Applicant: BASF AG

Inventor： ADAM KARL ,  AREND WOLFGANG ,  FRICK REINHOLD ,  HAAS HANS

IPC: C07C253/34 ,  C07C255/45

Abstract: Aliphatic dinitriles containing 4-22 carbon atoms, having at least 2 carbon atoms between the nitrile groups, and having, apart from the nitrile groups, a hydrocarbon structure, are purified by bringing them in the presence of water into contact with an alkali metal bisulphate, ammonium bisulphate, an ammonium bisulphate N-substituted by 1-3 alkyl groups having 1-4 carbon atoms, or a bisulphate of a divalent metal which does not form a sulphate which is difficulty soluble in water, e.g. iron, manganese, zinc, cobalt and nickel. The amount of water is preferably 3-8% by weight of dinitrile, and the amount of bisulphate preferably 0.01-10% by weight of dinitrile. Specified dinitriles are adipodinitrile, suberodinitrile, sebacodinitrile and the mixture of 1.9- and 1,10-dicyanoheptadecane known as heptadecane dicarboxylic acid dinitrile. The temperature may be from the solidification point of the dinitrile to 200 DEG C. or more. The purified dinitriles may be reduced to the corresponding diamines.

公开(公告)号：CA720404A

公开(公告)日：1965-10-26

申请号：CA720404D

Applicant: BASF AG

Inventor： ADAM KARL ,  HAAS HANS ,  AREND WOLFGANG ,  FRICK REINHOLD

公开(公告)号：CA720403A

公开(公告)日：1965-10-26

申请号：CA720403D

Applicant: BASF AG

Inventor： AREND WOLFGANG ,  ADAM KARL ,  FRICK REINHOLD ,  HAAS HANS

公开(公告)号：GB917788A

公开(公告)日：1963-02-06

申请号：GB4241260

申请日：1960-12-09

Applicant: BASF AG

Inventor： ADAM KARL ,  AREND WOLFGANG ,  FRICK REINHOLD ,  HAAS HANS

Abstract: Aliphatic dinitriles containing from 4 to 22 carbon atoms and having at least two carbon atoms between the nitrile groups are purified by heating with water and a neutral salt of ammonia or an amine. A suitable temperature range is 50 DEG to 200 DEG C. The water is preferably present in an amount which is 1 to 20% by weight of the dinitrile, and the neutral salt is preferably present in an amount which is 0.01 to 10% by weight of the dinitrile. Dinitriles exemplified are adipodinitrile, suberodinitrile, sebacodinitrile and mixtures of 1,9- and 1,10-dicyanoheptadecanes. After heating, the mixture of dinitrile, neutral salt and water may be subjected to distillation. The process may be adapted to both continuous and discontinuous operation.

公开(公告)号：FR1272896A

公开(公告)日：1961-09-29

申请号：FR843174

申请日：1960-11-07

Applicant: BASF AG

Inventor： ADAM KARL ,  AREND WOLFGANG ,  FRICK REINHOLD ,  HAAS HANS

IPC: C07C253/34 ,  C07C255/45

Abstract: Aliphatic dinitriles containing 4-22 carbon atoms, having at least 2 carbon atoms between the nitrile groups, and having, apart from the nitrile groups, a hydrocarbon structure, are purified by bringing them in the presence of water into contact with an alkali metal bisulphate, ammonium bisulphate, an ammonium bisulphate N-substituted by 1-3 alkyl groups having 1-4 carbon atoms, or a bisulphate of a divalent metal which does not form a sulphate which is difficulty soluble in water, e.g. iron, manganese, zinc, cobalt and nickel. The amount of water is preferably 3-8% by weight of dinitrile, and the amount of bisulphate preferably 0.01-10% by weight of dinitrile. Specified dinitriles are adipodinitrile, suberodinitrile, sebacodinitrile and the mixture of 1.9- and 1,10-dicyanoheptadecane known as heptadecane dicarboxylic acid dinitrile. The temperature may be from the solidification point of the dinitrile to 200 DEG C. or more. The purified dinitriles may be reduced to the corresponding diamines.