Title:
【発明の名称】超高純度酢酸メチルの製造
Document Type and Number:
Japanese Patent JP2922296
Kind Code:
B2
Abstract:
In a process for the production of methyl acetate from methanol and glacial acetic acid involving countercurrently flowing acetic acid and methanol through a single reactive distillation column having an extractive distillation section and a methyl acetate/acetic acid rectification section to obtain methyl acetate in the presence of an acidic catalyst, the improvement which comprises producing ultra high purity methyl acetate by the additional step of introducing acetic anhydride and a salt-free acid catalyst into the reactive distillation column between the extractive distillation section and the methyl acetate/acetic acid rectification section.
Inventors:
AGUREDA BIKUTAA HYUUGO
RIRII RONII DEREEN
RIRII RONII DEREEN
Application Number:
JP50827690A
Publication Date:
July 19, 1999
Filing Date:
May 22, 1990
Export Citation:
Assignee:
IISUTOMAN CHEM CO
International Classes:
B01J27/16; B01J31/02; C07B61/00; C07C67/08; C07C67/54; C07C69/14; B01J27/02; (IPC1-7): C07C69/14; B01J27/02; B01J27/16; B01J31/02; C07C67/08
Attorney, Agent or Firm:
Takashi Ishida (2 outside)