公开(公告)号：US3686269A

公开(公告)日：1972-08-22

申请号：US3686269D

申请日：1970-08-27

Applicant: UCB SA

Inventor： ARAD YAEL ,  LEVY MOSHE ,  VOFSI DAVID

IPC: C07B20060101 ,  C07C20060101 ,  C07C55/14 ,  C07C57/04 ,  C07F20060101 ,  C07C121/26

Abstract: IN THE HYDRODIMERIZATION OF ACRLONITRILE AND LOWER ALKYL-SUBSTITUTED ACRYLONITRILES BY CONTACTING THE NITRILES WITH AN ALKALI METAL AMALGAM FOR OBTAINING THE RESPECTIVE ADIPONITRILES, THE IMPROVEMENT OF USING IN THE REACTION A SOLVENT MEDIUM WHICH IS AT LEAST PARTLY WATER-MISCIBLE AND DISSOLVE BOTH THE STARTING COMPOUNDS AND THE HYDRODIMERS, THE AMOUNTS OF THE REACTANTS BEING OF THE ACYLIC ACID DERIVATIVES 5-20% BY WEIGHT, OF WATER 5-30% BY WEIGHT, AND OF A FREE QUATERNARY AMMONIUM BAS 0.0015% BY WEIGHT, THE DEGREE OF ALKALINITY BEING THAT GENERATED BY THE REACTION. TOGETHER WITH THE METNTIONED ADIPONITRILES, ALKALI METAL HYDROXIDE IS RECOVERED AS BYPRODUCT-.

公开(公告)号：US3622624A

公开(公告)日：1971-11-23

申请号：US3622624D

申请日：1968-07-18

Applicant: UCB SA

Inventor： ARAD YAEL ,  LEVY MOSHE ,  VOFSI DAVID

IPC: C07C20060101 ,  C07C51/00 ,  C07C55/14

CPC classification number: C07C51/09

Abstract: Adipic acid can be produced in a good yield and with only a small production of propionic acid by carrying out the alkali metal amalgam hydrodimerization of acrylic acid in dimethyl sulfoxide preferably admixed with water.

公开(公告)号：US3686270A

公开(公告)日：1972-08-22

申请号：US3686270D

申请日：1970-11-09

Applicant: UCB SA

Inventor： ARAD YAEL ,  LEVY MOSHE ,  VOFSI DAVID

IPC: C07B20060101 ,  C07C20060101 ,  C07C55/14 ,  C07C57/04 ,  C07C121/26

CPC classification number: C07C253/30 ,  C07C255/09

Abstract: IN A PROCESS FOR THE HYDRODIMERIZATION OF ACRYLONITRILE TO PRODUCE ADIPONITRILE BY CONTACTING ACRYLONITRILE WITH AN ALKALI METAL AMALGAM, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT SAID HYDRODIMERIZATION IN A MEDIUM CONSISTION ESSENTIALLY OF ADIPONITRILE OR PROPIONITRILE, THE AMOUNTS USED BEING 5 TO 30% BY WEIGHT OF ACRYLONITRILE, 5 TO 50% BY WEIGHT OF WATER, AND 0.001 TO 5% BY WEIGHT OF A FREE QUATERNARY AMMONIUM BASE, THE DEGREE OF ALKALINITY BEING AT LEAST THAT GENERATED BY THE DECOMPOSITION OF THE AMALGAM IN THE COURSE OF THE REACTION, THEREBY RECOVERING ALKALI METAL HYDROXIDE AND SAID ADIPONITRILE.

公开(公告)号：US3649666A

公开(公告)日：1972-03-14

申请号：US3649666D

申请日：1967-03-07

Applicant: UCB SA

Inventor： ARAD YAEL ,  LEVY MOSHE ,  MILLER ISRAEL R ,  VOFSI DAVID

IPC: C07B31/00 ,  C07C235/00 ,  C07C121/20 ,  C07C121/28

CPC classification number: C07B31/00 ,  C07C235/00

Abstract: HIGH YIELDS OF OBJECTIVE DIMER ARE OBTAINED IN THE HYDRODIMERIZATION OF FUNCTIONAL DERIVATIVES OF ARCYLIC ACID BY MEANS OF ALKALI METAL AMALGAM IN A MEDIUM CONTAINING WATER AND DMSO, WHILE ALLOWING THE REACTION MIXTURE TO BECOME AS STRONGLY ALKALINE AS CORRESPONDS TO THE DECOMPOSITION OF THE ALKALI METAL AMALGAM IN THE COURSE OF THE REACTION,WHEREBY NO PH CONTROL OF THE REACTION MEDIUM IS NECESSARY.

公开(公告)号：US3547975A

公开(公告)日：1970-12-15

申请号：US3547975D

申请日：1968-03-11

Applicant: UCB SA

Inventor： ARAD YAEL ,  LEVY MOSHE ,  VOFSI DAVID ,  ROSEN HAIM ,  GAN RAMAT

IPC: C07B20060101 ,  C07C20060101 ,  C07C55/14 ,  C07C57/04 ,  C07C69/44 ,  C07C121/20 ,  C07C121/00 ,  C07C121/26