Title:
PRODUCTION OF ACRYLAMIDE
Document Type and Number:
Japanese Patent JP3908803
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing acrylamide by the catalytic hydration reaction of acrylonitrile with water in the presence of a copper catalyst, capable of producing the high grade acrylamide enabling to produce polymers sufficiently high in mol.wts. and good in water solubility by purifying the acrylonitrile of raw material.
SOLUTION: This method for producing acrylamide comprises hydrating acrylonitrile in the presence of a copper catalyst through at least two processes comprising a process for bringing the acrylonitrile into contact with a strongly acidic cation exchange resin and a process for bringing the acrylonitrile into contact with a resin having tertiary amino groups, and further through a process for bringing the treated acrylonitrile into contact with active carbon, when the process using the strongly acidic cation exchange resin is carried out as the post process.
Inventors:
Uehara Yoichi
Yoshihiko Kambara
Tsukahara Yasushi
Yoshihiko Kambara
Tsukahara Yasushi
Application Number:
JP3207396A
Publication Date:
April 25, 2007
Filing Date:
February 20, 1996
Export Citation:
Assignee:
Mitsui Chemicals, Inc.
International Classes:
B01J39/00; C07C233/09; B01J23/72; B01J25/00; C07B61/00; C07C231/06; (IPC1-7): C07C233/09; B01J23/72; B01J25/00; B01J39/00; C07C231/06; //C07B61/00
Domestic Patent References:
| JP7145123A |
Foreign References:
| US2444589 |
Attorney, Agent or Firm:
Akio Miyazaki
Shinichi Iwata
Masaaki Ogata
Nobuyuki Kaneda
Katsuhiro Ito
Ishibashi Masayuki
Shinichi Iwata
Masaaki Ogata
Nobuyuki Kaneda
Katsuhiro Ito
Ishibashi Masayuki