Title:
METHOD FOR SEPARATION AND RECOVERY OF PROPARGYL ALCOHOL
Document Type and Number:
WIPO Patent Application WO/2002/074723
Kind Code:
A1
Abstract:
A method for separating and recovering propargyl alcohol, characterized in that a product mixture containing propargyl alcohol which is obtained by reacting paraformaldehyde with acetylene in the presence of a catalyst in a polar solvent is subjected to a distillation under a pressure of 100 to 150 mmHg. The method is free from the problems associated with conventional techniques and allows the separation and recovery of propargyl alcohol with a simple operation and with the advantage from the view point of heat and energy, without the use of a large distillation apparatus or a complicated process or separation operation, in the separation and recovery of propargyl alcohol from a production mixture containing a solvent, water and propargyl alcohol.
Inventors:
OMORI HIDEKI (JP)
SAWADA GORO (JP)
FUKUDA HIDEO (JP)
SATO TOMOHIKO (JP)
TAKEUCHI MITSURU (JP)
SAWADA GORO (JP)
FUKUDA HIDEO (JP)
SATO TOMOHIKO (JP)
TAKEUCHI MITSURU (JP)
Application Number:
PCT/JP2002/002541
Publication Date:
September 26, 2002
Filing Date:
March 18, 2002
Export Citation:
Assignee:
MARUZEN PETROCHEM CO LTD (JP)
OMORI HIDEKI (JP)
SAWADA GORO (JP)
FUKUDA HIDEO (JP)
SATO TOMOHIKO (JP)
TAKEUCHI MITSURU (JP)
OMORI HIDEKI (JP)
SAWADA GORO (JP)
FUKUDA HIDEO (JP)
SATO TOMOHIKO (JP)
TAKEUCHI MITSURU (JP)
International Classes:
C07C29/42; C07C29/80; C07C33/042; (IPC1-7): C07C33/042; C07C29/80; C07C29/42
Foreign References:
| US2106181A | 1938-01-25 | |||
| JPS305769B1 |
Other References:
STANKEVICH, V.K. et al., "One-Pot Synthesis of Glycidyl Propargyl Ether from Acetylene, Formaldehyde, and Epichlorohydrin", Russian Journal of Applied Chemistry 2000, Vol. 73, No. 1, pages 174 to 175
Attorney, Agent or Firm:
Kobayashi, Masato (Renga-toh Building 3 Kagurazaka 4-chome Shinjuku-ku, Tokyo, JP)
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