Patents Represented by Attorney James C. Logomasini
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Patent number: 4386215Abstract: In the method for the preparation of maleic anhydride by oxidizing an aliphatic hydrocarbon in the presence of a phosphorus-vanadium-oxygen complex catalyst, the improvement which comprises employing a catalyst with enhanced crush strength.Type: GrantFiled: November 27, 1981Date of Patent: May 31, 1983Assignee: Monsanto CompanyInventors: Ramon A. Mount, Warn D. Robinson
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Patent number: 4381254Abstract: An improvement in a method of preparing catalysts for the manufacture of maleic anhydride by oxidizing a saturated hydrocarbon. The catalyst is prepared by a process in which a catalyst precursor, containing tetravalent vanadium, is formed into agglomerates and calcined, the improvement being quick freezing the catalyst precursor before calcining.Type: GrantFiled: December 28, 1981Date of Patent: April 26, 1983Assignee: Monsanto CompanyInventor: James T. Wrobleski
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Patent number: 4367160Abstract: This invention relates to the treatment of carbon-containing materials. In one aspect this invention relates to the treatment of carbon-containing materials, such as coal, coke and hydrocarbons to produce oxides of carbon therefrom. In still another aspect, this invention relates to a process for the production of high purity synthesis gas, a mixture of hydrogen and carbon monoxide, from carbon-containing materials. More specifically, this invention relates to inorganic metal-oxygen containing materials useful as the oxidant, oxygen carrier and supplier, and heat transfer agent for the endothermic oxidative gasification of carbon-containing materials.Type: GrantFiled: October 7, 1981Date of Patent: January 4, 1983Assignee: Monsanto CompanyInventors: Charles W. Rooks, George D. Davis, James C. Hill, Talmage D. McMinn, Jr.
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Patent number: 4347389Abstract: Aromatic compounds are nitrated in the vapor phase via a process comprising contacting the aromatic compound with a nitrating agent in the presence of a nitration promoting catalyst comprising a phosphorus-vanadium-oxygen complex.Type: GrantFiled: December 31, 1980Date of Patent: August 31, 1982Assignee: Monsanto CompanyInventors: Ignatius Schumacher, Kang-bo Wang
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Patent number: 4278825Abstract: Toluene dehydrocoupled products are produced by heating toluene in the vapor phase with an inorganic metal/oxygen composition which functions as an oxygen carrier and has the empirical formula:M.sub.a.sup.1 M.sub.b.sup.2 M.sub.c.sup.3 O.sub.xwhere M.sup.1 is bismuth, M.sup.2 is at least one element selected from indium, silver, Group 2a of the Periodic Table of the Elements, and mixtures thereof, and M.sup.3 is at least one element selected from zinc, germanium, thorium, the lanthanides or rare earths, Groups 1a, 3b, 4b, and 8 of the Periodic Table of the Elements, and mixtures thereof, and wherein a is 1, b is 0.01 to 10, c is 0.01 to 10, and x is a number taken to satisfy the average valences of M.sup.1, M.sup.2, and M.sup.3 in the oxidation states in which they exist in the composition.Type: GrantFiled: December 10, 1979Date of Patent: July 14, 1981Assignee: Monsanto CompanyInventors: Samuel J. Tremont, Alex N. Williamson
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Patent number: 4278826Abstract: Toluene dehydrocoupled products are produced by heating toluene in the vapor phase with an inorganic metal/oxygen composition which functions as an oxygen carrier and has the empirical formula:M.sub.a.sup.1 M.sub.b.sup.2 M.sub.c.sup.3 O.sub.xwhere M.sup.1 is lead, M.sup.2 is antimony, and M.sup.3 is at least one element selected from silver, zinc, gallium, arsenic, the lanthanides or rare earths, Groups 1a, 2a, 3b, 4b, and 8 of the Periodic Table of the Elements, and mixtures thereof, and wherein a is 1, b is 0.01 to 10, c is 0.01 to 10, and x is a number taken to satisfy the average valences of M.sup.1, M.sup.2, and M.sup.3 in the oxidation states in which they exist in the composition. Alternatively, the same inorganic metal/oxygen composition can be employed as a catalyst or as a combination catalyst/oxygen carrier for the dehydrocoupling reaction when oxygen or an oxygen-containing gas is heated with the toluene.Type: GrantFiled: December 10, 1979Date of Patent: July 14, 1981Assignee: Monsanto CompanyInventors: Samuel J. Tremont, Alex N. Williamson, Arthur J. Solodar
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Patent number: 4278824Abstract: Toluene dehydrocoupled products are produced by heating toluene in the vapor phase with an inorganic metal/oxygen composition which functions as an oxygen carrier and has the empirical formula:M.sub.a.sup.1 M.sub.b.sup.2 M.sub.c.sup.3 O.sub.xwhere M.sup.1 is lead, M.sup.2 is bismuth, and M.sup.3 is at least one element selected from silver, zinc, indium, germanium, phosphorus, arsenic, thorium, the lanthanides or rare earths, Groups 1a, 2a, 3b, 4b, and 8 of the Periodic Table of the Elements, and mixtures thereof, and wherein a is 1, b is 0.01 to 10, c is 0.01 to 10, and x is a number taken to satisfy the average valences of M.sup.1, M.sup.2, and M.sup.3 in the oxidation states in which they exist in the composition. Alternatively, the same inorganic metal/oxygen composition can be employed as a catalyst or as a combination catalyst/oxygen carrier for the dehydrocoupling reaction when oxygen or an oxygen-containing gas is heated with the toluene.Type: GrantFiled: December 10, 1979Date of Patent: July 14, 1981Assignee: Monsanto CompanyInventors: Samuel J. Tremont, Alex N. Williamson, Arthur J. Solodar
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Patent number: 4272555Abstract: Carbon-containing materials are gasified to produce high purity carbon monoxide in a three zone unified system (oxidizer, reducer and gasifier) using a metal oxide as the oxygen and heat source for the gasification with carbon monoxide. Carbon monoxide contacts the metal oxide prior to the gasification to release the oxygen and convert the carbon monoxide to carbon dioxide as the gasification medium.Type: GrantFiled: September 21, 1979Date of Patent: June 9, 1981Assignee: Monsanto CompanyInventors: George D. Davis, James C. Hill, Talmage D. McMinn, Charles W. Rooks
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Patent number: 4272399Abstract: Carbon-containing materials are gasified to produce synthesis gas, a mixture of hydrogen and carbon monoxide, in a three zone unified system (oxidizer, reducer and gasifier) using a metal oxide as the oxygen and heat source for the gasification with steam and carbon dioxide. Synthesis gas contacts the metal oxide prior to the gasification to release the oxygen and convert the synthesis gas to steam and carbon dioxide as the gasification medium.Type: GrantFiled: September 21, 1979Date of Patent: June 9, 1981Assignee: Monsanto CompanyInventors: George D. Davis, James C. Hill, Talmage D. McMinn, Charles W. Rooks
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Patent number: 4268704Abstract: Toluene dehydrocoupled products are produced by heating toluene in the vapor phase with an inorganic metal/oxygen composition which functions as an oxygen carrier and has the empirical formula:M.sub.a.sup.1 M.sub.b.sup.2 M.sub.c.sup.3 O.sub.xwhere M.sup.1 is lead, M.sup.2 is at least one element selected from thallium and Group 2a of the Periodic Table of the Elements, and mixtures thereof, and M.sup.3 is at least one element selected from silver, zinc, phosphorus, arsenic, thorium, the lanthanides or rare earths, Groups 1a, 3b, 4b, and 8 of the Periodic Table of the Elements, and mixtures thereof, and wherein a is 1, b is 0.01 to 10, c is 0.01 to 10, and x is a number taken to satisfy the average valences of M.sup.1, M.sup.2, and M.sup.3 in the oxidation states in which they exist in the composition.Type: GrantFiled: December 10, 1979Date of Patent: May 19, 1981Assignee: Monsanto CompanyInventors: Samuel J. Tremont, Alex N. Williamson, Arthur J. Solodar
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Patent number: 4268703Abstract: Toluene dehydrocoupled products are produced by heating toluene in the vapor phase with an inorganic metal/oxygen composition which functions as an oxygen carrier and has the empirical formula:M.sub.a.sup.1 M.sub.b.sup.2 O.sub.xwhere M.sup.1 is lead and M.sup.2 is at least one element selected from thallium and Group 2a of the Periodic Table of the Elements, and mixtures thereof, and wherein a is 1, b is 0.01 to 10, and x is a number taken to satisfy the average valences of M.sup.1 and M.sup.2 in the oxidation states in which they exist in the composition. Alternatively, the same inorganic metal/oxygen composition can be employed as a catalyst or as a combination catalyst/oxygen carrier for the dehydrocoupling reaction when oxygen or an oxygen-containing gas is heated with the toluene.Type: GrantFiled: December 10, 1979Date of Patent: May 19, 1981Assignee: Monsanto CompanyInventors: Alex N. Williamson, Samuel J. Tremont
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Patent number: 4261856Abstract: Ammonia synthesis gas is prepared by contacting coal with air and steam in a fluidized bed. Heat for the reaction is provided by downward flowing hot char through the fluidized bed. The char is heated externally of the fluidized bed by combustion of fuel and/or a portion of the char. Control of the ratio of steam and air to the coal provides a gasification product of approximately 3 moles carbon monoxide plus hydrogen per mole of nitrogen.Type: GrantFiled: August 24, 1979Date of Patent: April 14, 1981Assignee: Monsanto CompanyInventor: Talmage D. McMinn, Jr.
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Patent number: 4255603Abstract: Toluene dehydrocoupled products are produced by heating toluene in the vapor phase with an inorganic metal/oxygen composition which functions as an oxygen carrier and has the empirical formula:M.sub.a.sup.1 M.sub.b.sup.2 O.sub.xwhere M.sup.1 is thorium and M.sup.2 is an element selected from copper and Group 2b of the Periodic Table of the Elements, and wherein a is 1, b is 0.01 to 10, and x is a number taken to satisfy the average valences of M.sup.1 and M.sup.2 in the oxidation states in which they exist in the composition. Alternatively, the same inorganic metal/oxygen composition can be employed as a catalyst or as a combination catalyst/oxygen carrier for the dehydrocoupling reaction when oxygen or an oxygen-containing gas is heated with toluene.Type: GrantFiled: December 10, 1979Date of Patent: March 10, 1981Assignee: Monsanto CompanyInventors: Alex N. Williamson, Samuel J. Tremont
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Patent number: 4255602Abstract: Toluene dehydrocoupled products are produced by heating toluene in the vapor phase with an inorganic metal/oxygen composition which functions as an oxygen carrier and has the empirical formula:M.sub.a.sup.1 M.sub.b.sup.2 O.sub.xwhere M.sup.1 is cobalt and M.sup.2 is lanthanum, and wherein a is 1, b is 1 to 10, and x is a number taken to satisfy the average valences of M.sup.1 and M.sup.2 in the oxidation states in which they exist in the composition. Alternatively, the same inorganic metal/oxygen composition can be employed as a catalyst or as a combination catalyst/oxygen carrier for the dehydrocoupling reaction when oxygen or an oxygen-containing gas is heated with the toluene.Type: GrantFiled: December 10, 1979Date of Patent: March 10, 1981Assignee: Monsanto CompanyInventors: Samuel J. Tremont, Alex N. Williamson
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Patent number: 4255604Abstract: Toluene dehydrocoupled products are produced by heating toluene in the vapor phase with an inorganic metal/oxygen composition which functions as an oxygen carrier and has the empirical formula:M.sub.a.sup.1 M.sub.b.sup.2 O.sub.xwhere M.sup.1 is lead and M.sup.2 is at least one element selected from silver, zinc, phosphorus, arsenic, thorium, the lanthanides or rare earths, Groups 1a, 3b, 4b, and 8 of the Periodic Table of the Elements, and mixtures thereof, and wherein a is 1, b is 0.01 to 10, and x is a number taken to satisfy the average valences of M.sup.1 and M.sup.32 in the oxidation states in which they exist in the composition. Alternatively, the same inorganic metal/oxygen composition can be employed as a catalyst or as a combination catalyst/oxygen carrier for the dehydrocoupling reaction when oxygen or an oxygen-contining gas is heated with the toluene.Type: GrantFiled: December 10, 1979Date of Patent: March 10, 1981Assignee: Monsanto CompanyInventors: Alex N. Williamson, Samuel J. Tremont, Arthur J. Solodar
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Patent number: 4254293Abstract: Toluene dehydrocoupled products are produced by heating toluene in the vapor phase with an inorganic metal/oxygen composition which functions as an oxygen carrier and has the empirical formula:M.sub.a.sup.1 M.sub.b.sup.2 O.sub.xwhere M.sup.1 is bismuth and M.sup.2 is at least one element selected from zinc, germanium, thorium, the lanthanides or rare earths, Groups 1a, 3b, 4b, and 8 of the Periodic Table of the Elements, and mixtures thereof, and wherein a is 1, b is 0.01 to 10 and x is a number taken to satisfy the average valences of M.sup.1 and M.sup.2 in the oxidation states in which they exist in the composition. Alternatively, the same inorganic metal/oxygen composition can be employed as a catalyst or as a combination catalyst/oxygen carrier for the dehydrocoupling reaction when oxygen or an oxygen-containing gas is heated with the toluene.Type: GrantFiled: December 10, 1979Date of Patent: March 3, 1981Assignee: Monsanto CompanyInventors: Samuel J. Tremont, Alex N. Williamson
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Patent number: 4247727Abstract: Toluene dehydrocoupled products are produced by heating toluene in the vapor phase with an inorganic metal/oxygen composition which functions as an oxygen carrier and has the empirical formula:M.sub.a.sup.1 M.sub.b.sup.2 O.sub.xwhere M.sup.1 is bismuth and M.sup.2 is at least one element selected from indium, silver, Group 2a of the Periodic Table of the Elements, and mixtures thereof, and wherein a is 1, b is 0.01 to 100, and x is a number taken to satisfy the average valences of M.sup.1 and M.sup.2 in the oxidation states in which they exist in the composition. Alternatively, the same inorganic metal/oxygen composition can be employed as a catalyst or as a combination catalyst/oxygen carrier for the dehydrocoupling reaction when oxygen or an oxygen-containing gas is heated with the toluene.Type: GrantFiled: December 10, 1979Date of Patent: January 27, 1981Assignee: Monsanto CompanyInventors: Samuel J. Tremont, Alex N. Williamson
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Patent number: 4243825Abstract: Toluene dehydrocoupled products are produced by heating toluene in the vapor phase with an inorganic metal/oxygen composition which functions as an oxygen carrier and has the empirical formula:M.sub.a.sup.1 M.sub.b.sup.2 O.sub.xwhere M.sup.1 is thallium and M.sup.2 is at least one element selected from arsenic, antimony, thorium, uranium, the lanthanides or rare earths, Groups 3b, 4b, 5b, and 7b of the Periodic Table of the Elements, and mixtures thereof, and wherein a is 1, b is 0.01 to 10, and x is a number taken to satisfy the average valences of M.sup.1 and M.sup.2 in the oxidation states in which they exist in the composition. Alternatively, the same inorganic metal/oxygen composition can be employed as a catalyst or as a combination catalyst/oxygen carrier for the dehydrocoupling reaction when oxygen or an oxygen-containing gas is heated with the toluene.Type: GrantFiled: December 10, 1979Date of Patent: January 6, 1981Assignee: Monsanto CompanyInventors: Alex N. Williamson, Samuel J. Tremont
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Patent number: 4184027Abstract: A system for controlling the percent of polymer in a reactor in a process in which the reactor effluent, comprising a mixture of polymer, unreacted materials and, possibly, by-products, goes through a separator to remove from such effluent unreacted materials and by-products. The system is especially useful with variable fillage, horizontal continuous stirred tank reactors.Type: GrantFiled: March 18, 1974Date of Patent: January 15, 1980Assignee: Monsanto CompanyInventor: Byrd Hopkins
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Patent number: 4178353Abstract: Residual PCl.sub.3 in POCl.sub.3 which has been prepared by the oxidation of PCl.sub.3 in the presence of air or oxygen-enriched air is converted to POCl.sub.3 by contacting the POCl.sub.3 /PCl.sub.3 mixture with ozone or an ozone-enriched gas.Type: GrantFiled: August 4, 1975Date of Patent: December 11, 1979Assignee: Monsanto CompanyInventors: Joseph W. Baker, Dario R. Cova, James E. White