Title:
GAS BLOW PIPE FOR GAS-LIQUID REACTION
Document Type and Number:
Japanese Patent JPH07251059
Kind Code:
A
Abstract:
PURPOSE: To prevent the clogging of a gas blow pipe, to stably produce a reaction product of high quality such as napthalenecarboxylic acid over a long period of time and to reduce the coloration of the formed reaction product.
CONSTITUTION: This gas blow pipe is used in gas-liquid reaction such that separate reactive raw material gas is blown in a raw material soln. prepared by dissolving at least one raw material substance in a solvent and the obtained reaction product is precipitated under reaction conditions. This gas blow tube is made of glass or a material subjected to glass lining processing (A) or made of fluoroplastic or a material subjected to fluoroplastic processing.
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Inventors:
OTSUKA HIROAKI
FUJITA KEN
KITO TADASHI
FUJITA KEN
KITO TADASHI
Application Number:
JP7021194A
Publication Date:
October 03, 1995
Filing Date:
March 16, 1994
Export Citation:
Assignee:
COSMO SOGO KENKYUSHO KK
COSMO OIL CO LTD
COSMO OIL CO LTD
International Classes:
B01J10/00; C07B33/00; C07B41/08; C07C51/215; C07C63/38; (IPC1-7): B01J10/00; C07B33/00; C07C51/215; C07C63/38
Attorney, Agent or Firm:
Shingo Origuchi