Production of formaldehyde from methyl mercaptans

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

568 21, 568 38, 568 69, 568449, C07C 4582

Patent

active

059691913

ABSTRACT:
A method wherein a gas stream containing a methyl mercaptan is passed in contact with a catalyst comprising a supported metal oxide or a bulk metal oxide in the presence of an oxidizing agent and for a time sufficient to convert at least a portion of the methyl mercaptan to formaldehyde (CH.sub.2 O) and sulfur dioxide (SO.sub.2)

REFERENCES:
Silverman, The Organic Chemistry of Drug Design and Drug Action, pp. 19-21, 1992.
Turk, et al., "Ammonia Injection Enhances Capacity of Activated Carbon for Hydrogen Sulfide and Methyl Mercaptan," Enviro. Sci. Technol., vol. 23, No. 10, 1242-1245, 1989.
Weigand, et al., "The Local Structure of Absorbed methyl Thiolate: The Reactions of Methanethiol on Mo(110)," Surface Science, vol. 279, 105-112, 1992.
Bol and Friend, "The Effects of Oxygen on Selectivity: The Reactions of 2-Propanethiolate on Oxygen-Covered Rh(111)," J. Am. Chem. Soc., vol. 117, 5351-5358, 1995.
Bosch, et al., "Formation and Control of Nitrogen Oxides," Catalysis Today, vol. 2, No. 4, 369-379, 1988.
Busca, et al., "Mechanism of Selective Methanol Oxidation Over Vanadium Oxide-Titanium Oxide Catalysts: A FT-IR and Flow Reactor Study," J. Phys. Chem., vol. 91, 5263-5269, 1997.
Jehng, et al., "Surface Modified Niobium Oxide Catalyst: Synthesis, Characterization, and Catalysis, Applied Catalysis A," vol. 83, 179-200, 1992.
Kim and Wachs, "Surface Chemistry of Supported Chromium Oxide Catalyst," Journal of Catalysis, vol. 142, 166-171, 1993.
Jehng and Wachs, "Modecular Design of Supported Niobium Oxide Catalysts," Catalysis Today, vol. 16, 417-426, 1993.
Kim and Wachs, "Surface Rhenium Oxide-Support Interaction for Supported Re.sub.2 O.sub.7 Catalysts," Journal of Catalysis, vol. 141, 419-429, 1993.
Deo, et al., "Physical and Chemical Characterization of Surface Vanadium Oxide Supported on Titania: Influence of Titania Phase (Anatase, Brookite and B)," Applied Catalysis A, vol. 91, 27-42, 1992.
Deo and Wachs, "Reactivity of Supported Vanadium Oxide Catalysts: The Partial Oxidation of Methanol," Journal of Catalysis, vol. 146, 323-334, 1994.
Deo and Wachs, "Effect of Additives on the Structure and Reactivity of the Surface Vanadium Oxide Phase in V.sub.2 O.sub.5 /TiO.sub.2 Catalysts," vol. 146, 335-345, 1994.
Jehng, et al., "Surface Chemistry of Silica-Titania-Supported Chromium Oxide Catalysts," J. Chem Soc. Faraday Trans., vol. 91(5), 953-961, 1995.
Biaker, et al., "Molecular Structures and Reactivity of Supported Molybdenum Oxide Catalysts," vol. 146, 268-277, 1994.
Banares, et al., "Molybdena on Silica Catalysts: Role of Preparation Methods of the Structure-Selectivity Properties for the Oxidation of Methanol," Journal of Catalysis, vol. 150,407-420, 1994.
Jehng and Wachs, "The Molecular Structures and Reactivity of V.sub.2 O.sub.3 /TiO.sub.2 /SiO.sub.2 Catalysts," Catalyst Letters, vol. 13, 9-20, 1992.
Hardcastle, et al., "Determination of Molybdenum-Oxygen Bond Distances and Bond Orders by Ramon Spectroscopy," J. Raman Spectroscopy, 21, 683-691, 1990.
Hardcastle, et al., Determination of Vanadium-Oxygen Bond Distances and Bond Orders by Raman Spectroscopy, J. Physical Chemistry, 95(13) 5031-5041, 1991.
Hardcastle, "Determination of the Molecular Structures of Tungstates by Raman Spectroscopy," J. Raman Spectroscopy, 26,397-405, 1995.
Weckhuysen, et al.,"Raman Spectroscopy of Supported Chromium Oxide Catalysts Determination of Chromium-Oxygen Bond Distances and Bond Orders," J. Chem. Soc. Faraday Trans., 92(11), 1969-1973, 1996.
Hardcastle, et al., "Determination of Noibium-Oxygen Bond Distances and Bond Orders by Raman Spectroscopy," Solid State Ionics, 45, 201-213, 1991.
Chemical Abstracts, 089(17), Abstr. No. 146366, "Possible Utilization of Dimethyl Ether", 1978.
Chemical Abstracts, 114(8), Abstr. No. 114(8), Abstr. No. 066367, "Photooxidation of Dimethyl Sulfide and Dimethy Disulfide. II:L Mechanism Evaluation", 1991.
Yin, et al., "Photooxidation of Dimethyl Sulfide and Dimethyl Disulfide. II: Mechanism Evaluation," J. Atmos. Chem., vol. 11, No. 4, 365-399, Cal. Inst. Tech., Dept Of Chem. Eng., Pasadena, 1990.
Mater. Vses. Konf., "Probl. Povysh. Urovnya Ispol'Z. Vtorichnykh Mater. Resur. Khim. Prom-Sti.," (38YXAG); 76, 105-111, Lenigr. Tekh. Inst., Lenigrad. USSR.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Production of formaldehyde from methyl mercaptans does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Production of formaldehyde from methyl mercaptans, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of formaldehyde from methyl mercaptans will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2057629

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.