Title:
METHOD FOR ACTIVATING CATALYST FOR CHLORINE PRODUCTION AND METHOD FOR PRODUCING CHLORINE
Document Type and Number:
WIPO Patent Application WO/2010/137504
Kind Code:
A1
Abstract:
Disclosed is a method for activating a catalyst for chlorine production used in a reaction for oxidizing hydrogen chloride with oxygen, which comprises a step wherein a catalyst for chlorine production having decreased activity is brought into contact with an acidic liquid. Also disclosed is a method for producing chlorine, wherein chlorine is produced by oxidizing hydrogen chloride with oxygen in the presence of a catalyst for chlorine production that is activated by the above-described method. The acidic liquid used in the method preferably has a pH of not more than 5, and is preferably an aqueous solution in which an inorganic acid is dissolved. In addition, the catalyst for chlorine production preferably contains ruthenium oxide.
More Like This:
| WO/2002/000341 | CATALYST REGENERATION VIA REDUCTION WITH HYDROGEN |
Inventors:
UCHIDA YOUHEI (JP)
SEKI KOHEI (JP)
SEKI KOHEI (JP)
Application Number:
PCT/JP2010/058434
Publication Date:
December 02, 2010
Filing Date:
May 19, 2010
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
UCHIDA YOUHEI (JP)
SEKI KOHEI (JP)
UCHIDA YOUHEI (JP)
SEKI KOHEI (JP)
International Classes:
B01J23/96; B01J38/60; C01B7/04
Foreign References:
| JP2009022917A | 2009-02-05 | |||
| JPH03221145A | 1991-09-30 | |||
| JPS506592A | 1975-01-23 | |||
| JPH02144149A | 1990-06-01 | |||
| JP2005270910A | 2005-10-06 |
Other References:
ZWEIDINGER, S. ET AL.: "Reaction Mechanism of the Oxidation of HC1 over RuO2(110)", J. PHYS. CHEM. C, vol. 112, no. 27, 13 June 2008 (2008-06-13), pages 9966 - 9969
LOPEZ, N. ET AL.: "Mechanism of HC1 oxidation (Deacon process) over RuO2", JOURNAL OF CATALYSIS, vol. 255, no. 1, 1 April 2008 (2008-04-01), pages 29 - 39, XP022518262, DOI: doi:10.1016/j.jcat.2008.01.020
LOPEZ, N. ET AL.: "Mechanism of HC1 oxidation (Deacon process) over RuO2", JOURNAL OF CATALYSIS, vol. 255, no. 1, 1 April 2008 (2008-04-01), pages 29 - 39, XP022518262, DOI: doi:10.1016/j.jcat.2008.01.020
Attorney, Agent or Firm:
FUKAMI, Hisao et al. (JP)
Hisao Fukami (JP)
Hisao Fukami (JP)
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