United States Patent: 6,956,134
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چکیده
Feeds comprising methanol, dimethyl ether or a mixture of the two are oxidized by contacting the feed with an oxygen-containing gas and a supported heteropolyacid catalyst containing molybdenum or molybdenum and vanadium. The primary products are methylal (dimethoxymethane) and methyl formate. Production of dimethyl ether from methanol can be inhibited by partial deactivation of acid sites on the Keggin catalyst. Inventors: Liu; Haichao (Beijing, CN); Iglesia; Enrique (Moraga, CA) Assignee: The Regents of the University of California (Oakland, CA) Appl. No.: 754652 Filed: January 8, 2004 Current U.S. Class: 568/472; 568/594; 560/131; 560/232 Intern'l Class: C07C 045/29; C07C 067/00 Field of Search: 568/594,472 560/131,232 References Cited [Referenced By] U.S. Patent Documents 4149009 Apr., 1979 Yoneoka et al. 4216339 Aug., 1980 Couteau et al. 4232171 Nov., 1980 Yoneoka et al. 4319037 Mar., 1982 Yoneoka. 4480122 Oct., 1984 Horlenko et al. 4757044 Jul., 1988 Cooper et al. 4778923 Oct., 1988 Aplin et al. 4994603 Feb., 1991 Mueller et al. 5026904 Jun., 1991 Lodge et al. United States Patent: 6,956,134 http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOF... 2 of 21 11/7/2005 9:54 AM 5144062 Sep., 1992 Chen et al. 5194675 Mar., 1993 Joerg et al. 5223102 Jun., 1993 Fedkiw, Jr. et al. 5399745 Mar., 1995 Yoneoka et al. 5401873 Mar., 1995 Zehner et al. 5917085 Jun., 1999 Lippert et al. 6379507 Apr., 2002 Satoh et al.
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