Title:
【発明の名称】2-ヒドロキシ-4-メチルチオブタン酸又はその塩を製造するための連続加水分解法
Document Type and Number:
Japanese Patent JPH11508876
Kind Code:
A
Abstract:
A continuous process for the preparation of 2-hydroxy-4-methylthiobutanoic acid or a salt thereof which includes introducing an aqueous mineral acid into a nitrile hydrolysis reactor including a continuous stirred tank reactor and introducing 2-hydroxy-4-methylthiobutanenitrile into the nitrile hydrolysis reactor. 2-hydroxy-4-methylthiobutanenitrile is continually hydrolyzed within the nitrile hydrolysis reactor to produce a nitrile hydrolysis reactor product stream containing 2-hydroxy-4-methylthiobutanamide. The nitrile hydrolysis reactor product stream is continuously introduced into an amide hydrolysis flow reactor. 2-hydroxy-4-methylthiobutanamide is continually hydrolyzed within the amide hydrolysis flow reactor to produce an aqueous hydrolyzate product containing 2-hydroxy-4-methylthiobutanoic acid. 2-hydroxy-4-methylthiobutanoic acid is recovered from the aqueous hydrolyzate product.
Inventors:
Shu, Junshi.
Blackburn, Thomas F.
Peregrine, Paul F.
Kranz, Allen H.
Willock, James M.
Blackburn, Thomas F.
Peregrine, Paul F.
Kranz, Allen H.
Willock, James M.
Application Number:
JP50109897A
Publication Date:
August 03, 1999
Filing Date:
June 04, 1996
Export Citation:
Assignee:
Novus International Incorporated
International Classes:
A23K1/16; B01J14/00; B01J19/18; B01J19/24; C07C319/20; C07C323/52; C07C323/60; (IPC1-7): C07C323/52; C07C319/20
Attorney, Agent or Firm:
Motohiro Kurauchi (1 outside)