Title:
METHANATION PROCESS
Document Type and Number:
Japanese Patent JPS60190726
Kind Code:
A
Abstract:
PURPOSE: To improve the selectivity of methane in the reaction of carbon monoxide with hydrogen, easily, by contacting the raw materials with hafnium oxide.
CONSTITUTION: Methanol is produced by contacting carbon monoxide and hydrogen with hafnium oxide preferably at 300W500°C, especially at 320W440°C under a pressure from negative pressure to several tens atm. The hafnium oxide can be produced industrially by dissolving a water-soluble hafnium compound, e.g. hafnium oxynitrate, etc. in water or in a mixture of water and an organic solvent, adjusting the pH of the solution to preferably 6W9 with ammonia, etc., and calcining the precipitate at 200W850°C after washing and drying. The volume ratio of H2/CO is preferably 1/1W10/1.
Inventors:
OONISHI KOUJI
MARUTANI KENICHI
AKISHIKA KENICHI
DOUMEN KAZUNARI
MARUTANI KENICHI
AKISHIKA KENICHI
DOUMEN KAZUNARI
Application Number:
JP4406384A
Publication Date:
September 28, 1985
Filing Date:
March 09, 1984
Export Citation:
Assignee:
TOKUYAMA SODA KK
International Classes:
C07C1/04; B01J21/00; B01J21/06; C07B61/00; C07C1/00; C07C9/04; C07C67/00; (IPC1-7): B01J21/06; C07C1/04; C07C9/04
Domestic Patent References:
| JPS59109244A | 1984-06-23 | |||
| JPS60150837A | 1985-08-08 |
Attorney, Agent or Firm:
Yoshio Mizuno
Previous Patent: JPS60190725
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