Patents by Inventor Maria S. Friedrich
Maria S. Friedrich has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6965046Abstract: A catalyst composition comprising a complex of catalytic oxides of iron, bismuth, molybdenum, cobalt, cerium, antimony, at least one of nickel or magnesium, and at least one of lithium, sodium, potassium, rubidium, or thallium, and characterized by the following empirical formula: AaBbCcFedBieCofCegSbhMomOx wherein A is at least one of Cr, P, Sn, Te, B, Ge, Zn, In, Mn, Ca, W, or mixtures thereof B is at least one of Li, Na, K, Rb, Cs, Tl, or mixtures thereof C is least one of Ni, Mg or mixtures thereof a is 0 to 4.0 b is 0.01 to 1.5 c is 1.0 to 10.0 d is 0.1 to 5.0 e is 0.1 to 2.0 f is 0.1 to 10.0 g is 0.1 to 2.0 h is 0.1 to 2.0 m is 12.0 to 18.0 and x is a number determined by the valence requirements of the other elements present. The catalyst is useful in processes for the ammoxidation of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile and mixtures thereof, respectively.Type: GrantFiled: August 6, 2002Date of Patent: November 15, 2005Assignee: The Standard Oil Co.Inventors: Christos Paparizos, Michael J. Seely, Maria S. Friedrich, Dev D. Suresh
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Publication number: 20020198398Abstract: A catalyst composition comprising a complex of catalytic oxides of iron, bismuth, molybdenum, cobalt, cerium, antimony, at least one of nickel or magnesium, and at least one of lithium, sodium, potassium, rubidium, or thallium, and characterized by the following empirical formula:Type: ApplicationFiled: August 6, 2002Publication date: December 26, 2002Inventors: Christos Paparizos, Michael J. Seely, Maria S. Friedrich, Dev D. Suresh
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Patent number: 6458742Abstract: A catalyst composition comprising a complex of catalytic oxides of iron, bismuth, molybdenum, cobalt, cerium, antimony, at least one of nickel or magnesium, and at least one of lithium, sodium, potassium, rubidium, or thallium, and characterized by the following empirical formula: AaBbCcFedBieCofCegSbhMomOx wherein A is at least one of Cr, P, Sn, Te, B, Ge, Zn, In, Mn, Ca, W, or mixtures thereof B is at least one of Li, Na, K, Rb, Cs, Tl, or mixtures thereof C is least one of Ni, Mg or mixtures thereof a is 0 to 4.0 b is 0.01 to 1.5 c is 1.0 to 10.0 d is 0.1 to 5.0 e is 0.1 to 2.0 f is 0.1 to 10.0 g is 0.1 to 2.0 h is 0.1 to 2.0 m is 12.0 to 18.0 and x is a number determined by the valence requirements of the other elements present. The catalyst is useful in processes for the ammoxidation of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile and mixtures thereof, respectively.Type: GrantFiled: August 17, 2000Date of Patent: October 1, 2002Assignee: The Standard Oil CompanyInventors: Christos Paparizos, Michael J. Seely, Maria S. Friedrich, Dev D. Suresh
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Patent number: 5457223Abstract: A process for the substantial or complete elimination of ammonium sulfate generated during the production of acrylonitrile by the direct ammoxidation of propylene/propane, ammonia and an oxygen containing gas (e.g. air) over a fluid bed catalyst wherein the improvement comprises introducing methanol into said reactor in the upper portion of the reactor at a location where the methanol reacts with at least a portion if not substantially all of the excess ammonia without affecting the acrylonitrile yield. Preferably, methanol is introduced into the reactor at below its coking temperature. In particular, when an oxygen lean fluid bed catalyst is utilized, an additional oxygen containing gas is introduced into the reaction at a distance between about 8 to 14 inches from the methanol feed location.Type: GrantFiled: August 11, 1993Date of Patent: October 10, 1995Assignee: The Standard Oil CompanyInventors: Wilfrid G. Shaw, Kenneth L. Bigler, Louis R. Trott, Steve J. Miko, Vincent G. Reiling, Michael J. Seely, Dev D. Suresh, Maria S. Friedrich, Paul E. Bott, Edward J. Sockell, Albert R. Shuki, Jr., Kenneth P. Keckler, Frank J. Kocjancic, Steven J. Rowe
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Patent number: 5288473Abstract: A process for the substantial or complete elimination of ammonium sulfate generated during the production of acrylonitrile by the direct ammoxidation of propylene/propane, ammonia and an oxygen containing gas (e.g. air) over a fluid bed catalyst wherein the improvement comprises introducing an organic compound(s) into said reactor at a location where the compound(s) reacts with substantially all of the excess ammonia without affecting the acrylonitrile yield. Preferably, the organic compound is methanol which is introduced into the reactor at below its coking temperature.Type: GrantFiled: October 9, 1992Date of Patent: February 22, 1994Assignee: The Standard Oil CompanyInventors: Wilfrid G. Shaw, Kenneth L. Bigler, Louis R. Trott, Steve J. Miko, Vincent G. Reiling, Michael J. Seely, Dev D. Suresh, Maria S. Friedrich, Paul E. Bott, Edward J. Sockell, Albert R. Shuki, Jr., Kenneth P. Keckler, Frank J. Kojancic
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Patent number: 5258543Abstract: Disclosed is a method for ammoxidizing C.sub.3 to C.sub.5 mono-olefins to .alpha.,.beta.-mono-unsaturated acyclic nitriles having 3 to 5 carbon atoms and HCN by introducing such mono-olefins molecular oxygen and ammonia into a reaction zone into vapor phase contact with a solid ammoxidation catalyst, wherein the mol ratio of introduced molecular oxygen and ammonia to said introduced mono-olefin is at least 1.5 and 1.0, respectively, wherein said catalyst contains the elements and proportions indicated by the empirical formula:V1Sb.sub.a M.sub.m N.sub.n O.sub.xwherea=0.5 to 2M=one or more of: Sn, Ti, Fe, and Gam=0.05 to 3, usually at least 0.1 and at most 1N=one or more of: W, Bi, Mo, Li, Mg, P, Zn, Mn, Te, Ge, Nb, Zr, Cr, Al, Cu, Ce, Bn=0.0 to 0.5,and wherein the preparation of the catalyst includes contacting in an aqueous dispersion a vanadium compound and an antimony compound while said vanadium is in solution.Type: GrantFiled: June 26, 1992Date of Patent: November 2, 1993Assignee: The Standard Oil CompanyInventors: Dev D. Suresh, Michael J. Seely, Maria S. Friedrich, Christos Paparizos
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Patent number: 5212137Abstract: Olefins such as propylene and isobutylene are converted to the corresponding unsaturated nitriles, acrylonitrile, and methacrylonitrile, respectively, by reacting a mixture of the olefin, ammonia, and molecular oxygen-containing gas in the presence of a catalyst containing the oxides of bismuth, molybdenum, iron, nickel and magnesium, at least one element selected from the group comprising potassium and cesium, and optionally one element selected from the group comprising cobalt, phosphorus, manganese, tellurium, sodium, cerium, chromium, antimony and tungsten wherein the sum of cesium and potassium is at least 0.1 to 0.4.Type: GrantFiled: July 29, 1991Date of Patent: May 18, 1993Assignee: Standard Oil CompanyInventors: Dev D. Suresh, Maria S. Friedrich, Michael J. Seely
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Patent number: 5204079Abstract: A process of producing hydrogen cyanide from crude acetonitrile comprising contacting the crude acetonitrile with an ammoxidation catalyst at an elevated temperature in the presence of an oxygen containing gas and ammonia. Preferably, the process is performed in the absence of propylene.Type: GrantFiled: February 15, 1991Date of Patent: April 20, 1993Assignee: Standard Oil CompanyInventors: Dev D. Suresh, Mark C. Cesa, Tai C. Yang, Robert K. Grasselli, Mark R. Bruce, Michael J. Seely, Maria S. Friedrich, Robert A. Dubbert
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Patent number: 5175334Abstract: Olefins such as propylene and isobutylene are converted to the corresponding unsaturated nitriles, acrylonitrile, and methacrylonitrile, respectively, by reacting a mixture of the olefin, ammonia, and molecular oxygen-containing gas in the presence of a catalyst containing the oxides of bismuth, molybdenum, iron, nickel and magnesium, at least one element selected from the group comprising potassium and cesium, and optionally one element selected from the group comprising cobalt, phosphorus, manganese, tellurium, sodium, cerium, chromium, antimony and tungsten wherein the sum of cesium and potassium is at least 0.1 to 0.Type: GrantFiled: December 12, 1991Date of Patent: December 29, 1992Assignee: The Standard Oil CompanyInventors: Dev D. Suresh, Maria S. Friedrich, Michael J. Seely
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Patent number: 5171876Abstract: Disclosed is a process for making an .alpha., .beta.-unsaturated mononitrile by the catalytic reaction of a paraffin containing 3-5 carbon atoms with molecular oxygen and ammonia by catalytic contact of the foregoing reactants in a reaction zone with a metal oxide catalyst containing the elements indicated by the empirical formula,Cr.sub.a Mo.sub.b Te.sub.c M.sub.d O.sub.x (formula 1)whereM=one or more of Mg, Ni, Sb, Ti, La, P, Ce, Fe, Nb, W, V, and Cu, each of a, b & c is 0.1 to 10d is zero to 10a+b+c>1.5d, andx is determined by the valence requirements of the other elements present, andwherein the reactants fed to the reaction zone contain a mole ratio of said paraffin:NH.sub.3 in the range from 2.5 to 16 and a mole ratio of said paraffin:O.sub.2 in the range from 1 to 10.Type: GrantFiled: September 16, 1991Date of Patent: December 15, 1992Assignee: The Standard Oil CompanyInventors: Dev D. Suresh, Michael J. Seeley, Jeanette R. Nappier, Maria S. Friedrich
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Patent number: 5093299Abstract: Olefins such as propylene and isobutylene are converted to the corresponding unsaturated nitriles, acrylonitrile, and methacrylonitrile, respectively, by reacting a mixture of the olefin, ammonia, and molecular oxygen-containing gas in the presence of a catalyst containing the oxides of bismuth, molybdenum, iron, nickel and magnesium, at least one element selected from the group comprising potassium and cesium, and optionally one element selected from the group comprising cobalt, phosphorus, manganese, tellurium, sodium, cerium, chromium, antimony and tungsten wherein the sum of cesium and potassium is at least 0.1 to 0.4.Type: GrantFiled: January 9, 1990Date of Patent: March 3, 1992Assignee: The Standard Oil CompanyInventors: Dev D. Suresh, Maria S. Friedrich, Michael J. Seely
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Patent number: 5066809Abstract: Disclosed is a process for making 3-methylpyridine by contacting 2-methylglutaronitrile in admixture with hydrogen gas with a supported solid catalyst containing palladium metal promoted with at least one of Cr, W, Ni, Co and Ge.Type: GrantFiled: September 27, 1990Date of Patent: November 19, 1991Assignee: The Standard Oil CompanyInventors: Dev D. Suresh, Robert DiCosimo, Richard Loiseau, Maria S. Friedrich, Hsiao-Chiung Szabo
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Patent number: 4978764Abstract: Disclosed is a process f9or making an .alpha., .beta.-unsaturated mononitrile by the catalytic reaction of a paraffin containing 3-5 carbon atoms with molecular oxygen and ammonia by catalytic contact of the foregoing reactants in a reaction zone with a metal oxide catalyst composition that has 10-90 weight percent of a diluent/support and 90-10 weight percent of a catalyst containing the elements indicated by the empirical formula,A.sub.a D.sub.d Bi.sub.c Fe.sub.f Mo.sub.12 O.sub.xin the proportions indicated by the said formula, said diluent/support containing 10 to 100 weight percent Al.sub.2 O.sub.3 and zero to 90 weight percent SiO.sub.2 whereinA is one or more of Li, Na, K, Rb, Cs, Tl B, W, Sn and La;D is one or more of Cr, Sb, Pb, P, Cu, Ni, Co, Mn and Mg;a is zero to 10;c is 0.1 to 10;d is zero to 10; andf is 0.2 to 10; andwherein the reactants fed to the reaction zone contain a mole ratio of said paraffin:NH.sub.3 in the range from 2 to 16 and a mole ratio of said paraffin to O.sub.Type: GrantFiled: September 25, 1989Date of Patent: December 18, 1990Assignee: The Standard Oil CompanyInventors: Michael J. Seely, Maria S. Friedrich, Dev D. Suresh
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Patent number: 4760159Abstract: Disclosed is a process for the vapor phase ammoxidation of a C.sub.3 to C.sub.5 paraffin to an .alpha.,.beta.-unsaturated nitrile having 3-5 C atoms, using a particulate bismuth-vanadium oxide catalyst containing at least one other specified element.Type: GrantFiled: March 13, 1987Date of Patent: July 26, 1988Assignee: The Standard Oil CompanyInventors: Dev D. Suresh, David A. Orndoff, James F. Brazdil, Linda C. Glaeser, Maria S. Friedrich
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Patent number: 4659689Abstract: A process for the preparation of bismuth molybdate catalyst comprising (1) adding a dried mixture of metal salts of the active phase of the catalyst to an aqueous sol containing a support material for the active phase, (2) adding an acid to this slurry, (3) heating the slurry to dryness and (4) calcining the dried precursor to form the catalyst.Type: GrantFiled: March 5, 1986Date of Patent: April 21, 1987Assignee: The Standard Oil CompanyInventors: Dev D. Suresh, Robert J. Zagata, Maria S. Friedrich, Michael J. Seely
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Patent number: 4424141Abstract: Bismuth molybdate catalysts formed from a precatalyst slurry which uses an organic liquid or mixture of an organic liquid and water as the liquid medium of the slurry exhibit superior catalytic properties.Type: GrantFiled: January 5, 1981Date of Patent: January 3, 1984Assignee: The Standard Oil Co.Inventors: Robert K. Grasselli, Dev D. Suresh, Maria S. Friedrich
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Patent number: 4414134Abstract: An element selected from Groups IA, IB, IIB, IIIA and IIIB is incorporated into an iron bismuth molybdate oxide complex catalyst by impregnation.Type: GrantFiled: January 5, 1981Date of Patent: November 8, 1983Assignee: The Standard Oil Co.Inventors: Maria S. Friedrich, Dev D. Suresh, Robert K. Grasselli