Title:
PRODUCTION OF POLYALCOHOL
Document Type and Number:
Japanese Patent JP3630901
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a polyalcohol having a high hydroxyl content economically by using a catalyst prepared from a ruthenium compound and a specified phosphine compound in producing a polyalcohol by reducing a polyketone being a carbon monoxide/olefin compound copolymer with hydrogen.
SOLUTION: This polyalcohol is produced by reducing a polyketone being a carbon monoxide/olefin compound copolymer with hydrogen in a solvent in the presence of a catalyst prepared from a ruthenium compound and a phosphine compound represented by the formula: R1R2R3P (wherein R1, R2 and R3 are each a 1-12C alkyl which may have a substituent). In the formula, R1, R2 and R3 are desirably 2-8C n-alkyls. The catalyst is more desirably one prepared in the presence of an acid or its salt. The pKa of the acid or its salt is more desirably 5 or below. The polyketoner is more desirably an ethylene/ carbon monoxide copolymer having a carbonyl content of 40-50 equivalent %.
Inventors:
Shigeaki Suzuki
Kazuyuki Yada
Kazuyuki Yada
Application Number:
JP3351797A
Publication Date:
March 23, 2005
Filing Date:
February 18, 1997
Export Citation:
Assignee:
KURARAY CO.,LTD.
International Classes:
C08G67/02; C08G67/00; (IPC1-7): C08G67/02
Domestic Patent References:
| JP5339367A | ||||
| JP1149828A | ||||
| JP9235370A | ||||
| JP2180926A | ||||
| JP2284922A |
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