Title:
METHOD FOR PRODUCING ANHYDROUS ACETONITRILE
Document Type and Number:
Japanese Patent JP2006124311
Kind Code:
A
Abstract:
To provide a method for obtaining acetonitrile containing less water content by removing water from water-containing acetonitrile without using a reagent necessary for paying attention in the points of labor safety and hygiene.
This method for producing anhydrous acetonitrile by distillation-treating the water-containing acetonitrile to produce the anhydrous acetonitrile containing ≤500 ppm water content is characterized by mixing the water-containing acetonitrile with a solvent having a lower boiling point than that of the acetonitrile by ≥5°C, and then distillation-treating.
Inventors:
WAKITA RYUHEI
IZUMI TAKUHIRO
IZUMI TAKUHIRO
Application Number:
JP2004313529A
Publication Date:
May 18, 2006
Filing Date:
October 28, 2004
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO
International Classes:
C07C253/34; C07C255/03
Domestic Patent References:
| JPS4716418A | ||||
| JPH02104540A | 1990-04-17 | |||
| JPH06287153A | 1994-10-11 |
Attorney, Agent or Firm:
Takashi Kuboyama
Toru Nakayama
Masayuki Enomoto
Toru Nakayama
Masayuki Enomoto
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