The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 23, 1996
Filed:
Jun. 19, 1992
Tokyo Gas Company, Limited, Tokyo, JP;
Abstract
A process for preparing acetic acid from methanol and carbon monoxide or a mixed gas of carbon monoxide with hydrogen, which process comprises contacting methanol with a gaseous component selected from a group consisting of carbon monoxide and a mixed gas of carbon monoxide with hydrogen of 2% by volume or less in the presence of a carbon-supported rhodium metal catalyst and methyl iodide promoter in vapor phase under the conditions of a reaction temperature of 180.degree.-220.degree. C., a reaction pressure of 5-10 kg/cm.sup.2 .multidot.G, and a weight of catalyst to feed gas flow rate ratio (W/F) of 10-20 g.multidot.h/mole; and a process for preparing acetic acid from methanol and carbon monoxide, which process comprises contacting methanol with carbon monoxide in the presence of a carbon-supported rhodium metal catalyst, methyl iodide promoter and water in vapor phase.