Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Reexamination Certificate
2009-07-24
2010-11-16
Nguyen, Cam N (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
C502S240000, C502S255000, C502S302000, C502S303000, C502S304000, C502S305000, C502S308000, C502S309000, C502S317000, C502S321000, C502S322000, C502S323000, C502S332000, C502S349000, C502S350000, C502S355000, C502S415000, C502S439000
Reexamination Certificate
active
07833929
ABSTRACT:
The present invention refers to a continuous process for the manufacture of methyl mercaptan using Mo—O—K-based catalysts. It is further described that the total selectivity of methylmercaptan can be increased by at least 1% by lowering the total gas hourly space velocity. The invention further refers to a process for the preparation of a solid, preformed catalyst system.
REFERENCES:
patent: 3928444 (1975-12-01), Kamada et al.
patent: 4043934 (1977-08-01), Shuler et al.
patent: 4092239 (1978-05-01), Moser
patent: 4105589 (1978-08-01), Moser
patent: 4112032 (1978-09-01), Blaszyk et al.
patent: 4116996 (1978-09-01), Huang
patent: 4313017 (1982-01-01), McGinnis
patent: 4333855 (1982-06-01), Gardner et al.
patent: 4357149 (1982-11-01), West
patent: 4371458 (1983-02-01), Eastman
patent: 4389304 (1983-06-01), Eastman
patent: 4438218 (1984-03-01), Boorman et al.
patent: 4518488 (1985-05-01), Wennerberg
patent: 4570020 (1986-02-01), Ratcliffe
patent: 4656153 (1987-04-01), Wennerberg
patent: 4665242 (1987-05-01), Boulinquiez et al.
patent: 4668825 (1987-05-01), Ratcliffe
patent: 5486628 (1996-01-01), Kemp
patent: 5494875 (1996-02-01), Usui et al.
patent: 5580839 (1996-12-01), Huffman et al.
patent: 5739075 (1998-04-01), Matusz
patent: 5753582 (1998-05-01), Garcin et al.
patent: 5874630 (1999-02-01), Cook et al.
patent: 6034020 (2000-03-01), Drake et al.
patent: 6143689 (2000-11-01), Moy et al.
patent: 6383974 (2002-05-01), Ishida et al.
patent: 6432224 (2002-08-01), Minevski et al.
patent: 6770589 (2004-08-01), Moy et al.
patent: 7235173 (2007-06-01), Diehl et al.
patent: 1207957 (1999-02-01), None
patent: 1207958 (1999-02-01), None
patent: 1528516 (2004-09-01), None
patent: 196 54 515 (1998-10-01), None
patent: 0 104 507 (1964-04-01), None
patent: 0 167 354 (1986-01-01), None
patent: 0 832 878 (1998-04-01), None
patent: 2 016 468 (1979-09-01), None
Yang et al. Catalysis Letters (2201), 74(3-4), 221-225.
Wang, Qi et al. “The study of the promotion of Co to the supported catalyst K2Mo04 for the syntheses of methanethiol from H2S-containing syngas,” 2003, pp. 64-68—Chemical.
Yang, Yi-Quan et al., “Study of the supported K . . . catalyst for methanethiol synthesis by one step from high . . . ” Catalysis Letters, 2001, pp. 221-225, vol. 74, No. 3-4.
Ackermann Sabine
Barth Jan-Olaf
Chen Aiping
Dai Shenjun
Fang Weiping
Evonik Degussa GmbH
Nguyen Cam N
Smith , Gambrell & Russell, LLP
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