Title:
METHOD FOR REGENERATING CATALYST FOR HYDROGENATION REACTION, AND METHOD FOR PRODUCING HYDRIDE OF POLYHYDRIC ALCOHOL
Document Type and Number:
WIPO Patent Application WO/2014/203601
Kind Code:
A1
Abstract:
Provided is a method for regenerating a catalyst for hydrogenation reactions, said catalyst being poisoned during use in a reaction between a polyhydric alcohol and hydrogen, which is capable of restoring the catalytic activity of the catalyst to a high level without increasing the number of cumbersome processes nor decreasing a metal in the catalyst, while maintaining high selectivity.
A method for regenerating a catalyst for hydrogenation reactions, said catalyst being used in the production of a hydride of a polyhydric alcohol by a reaction between the polyhydric alcohol and hydrogen and being poisoned by a poisoning substance. This method is characterized in that the catalyst for hydrogenation reactions is subjected to the following regeneration treatment (1) and/or regeneration treatment (2).
Regeneration treatment (1): a treatment wherein the catalyst for hydrogenation reactions is cleaned by water and/or an organic solvent
Regeneration treatment (2): a treatment wherein the catalyst for hydrogenation reactions is heated to 80-300°C in a flow of a gas that contains nitrogen
Inventors:
HIRAI YUUICHIROU (JP)
KAJIKAWA YASUTERU (JP)
UCHIDA TAKAYUKI (JP)
KAJIKAWA YASUTERU (JP)
UCHIDA TAKAYUKI (JP)
Application Number:
PCT/JP2014/060393
Publication Date:
December 24, 2014
Filing Date:
April 10, 2014
Export Citation:
Assignee:
DAICEL CORP (JP)
International Classes:
B01J38/12; B01J38/04; B01J38/48; C07C29/60; C07C31/20; C07B61/00
Foreign References:
| JP2013014577A | 2013-01-24 | |||
| JP2010535703A | 2010-11-25 | |||
| JP2013166096A | 2013-08-29 |
Attorney, Agent or Firm:
GOTO, YUKIHISA (JP)
Yukihisa Goto (JP)
Yukihisa Goto (JP)
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