The Standard Oil Company

Ineos USA LLC

Other

Christos Paparizos

Wilfrid G Shaw

Michael J Seely

Dev D Suresh

Patricia R Blum

Marc A Pepera

Larry M Cirjak

Maria Strada Friedrich

Michael F Lemanski

Louis J Velenyi

James L Callahan

Serge R Dolhyj

Tama Lee Drenski

David R Wagner

Nancy C Benkalowycz

Robert S Shout

James F Brazdil

Muin S Haddad

George Frederick Salem

Mark A Toft

Michael James Baker

Philip L Kuch

James E Rinz

Bhagya Chandra Sutradhar

Stephen C Jevne

Alakananda A Bhattacharyya

Patrick E Mosier

Frederick A Pesa

Sanjay Purushottam Godbole

S Erik Pedersen

Charles James Besecker

Diane G Farrington

Victor R Gupta

Christopher L Bodolus

Louis F Wagner

James A Kaduk

Thomas L Szabo

Ying Wu

Yihhong Song

Louis J Valenyi

Alan A Leff

Joseph E Metcalfe

Lina K Bodiwala

Catalytic compositions and processes are disclosed for economical conversions of lower alkane hydrocarbons. Broadly, the present invention discloses solid compositions containing mixed metal oxides that exhibit catalytic activity for ammoxidation of lower alkane hydrocarbons to produce an unsaturated nitrile in high yield. Generally, these solid oxide compositions comprise, as component elements, molybdenum (Mo), vanadium (V) niobium (Nb) and at least one active element selected from the group consisting of the elements having the ability to form positive ions. Mixed metal oxide catalytic compositions advantageously comprise one or more crystalline phases at least one of which phases has pre-determined unit cell volume and aspect ratio. Also described are methods for forming the improved catalysts having the desired crystalline structure and ammoxidation processes for conversion of lower alkanes.

Mixed metal oxide catalysts and catalytic conversions of lower alkane hydrocarbons

The present invention comprises a method for preparing a mixed oxide catalyst for use in producing acrylonitrile or methacrylonitrile from propane or isobutane by ammoxidation in a gaseous phase via methods of contacting any one of the antimony compound, the molybdenum compound, and the vanadium compound with hydrogen peroxide prior to combining with source compounds for the remaining elements in the catalyst.

Method of making mixed metal oxide catalysts for ammoxidation and/or oxidation of lower alkane hydrocarbons

The present invention comprises a method for preparing a mixed oxide catalyst for use in producing acrylonitrile or methacrylonitrile from propane or isobutene by ammoxidation in a gaseous phase via methods of heating or calcining precursor solid mixture to obtain mixed metal oxide catalyst compositions that exhibit catalytic activity.

A process for the conversion of a hydrocarbon selected from the group consisting of propylene, isobutylene, propane, isobutane or mixtures thereof, to acrylonitrile, methacrylonitrile, or mixtures thereof, the process comprising the step of reacting in the vapor phase at an elevated temperature and pressure said hydrocarbon with a molecular oxygen-containing gas and ammonia, in the presence of a molybdenum-based ammoxidation catalyst and a catalyst modifier, wherein said catalyst modifier comprises a molybdate or a polymolybdate of at least one element M selected from the group consisting of cesium, rubidium, potassium, sodium, thallium, lithium, nickel, cobalt, iron, chromium, copper, magnesium, manganese, cerium and phosporus, and wherein the ratio of the M elements to Mo in the molybdate or polymolybdate is greater than the ratio for these M elements to Mo in the molybdenum-based catalyst. The catalyst modifier is useful in modifying the performance of molybdenum-based catalyst and inhibiting molybdenum oxide loss for such catalysts.

In situ modification of molybdenum-based catalysts

A catalyst comprising a complex of catalytic oxides comprising potassium, cesium, cerium, chromium, cobalt, nickel, iron, bismuth, molybdenum, wherein the relative ratios of these elements is represented by the following general formulaAKCsCeCrCoNiXFeBiMoOwherein

Catalyst for the manufacture of acrylonitrile

A fluid bed process for the manufacture of vinyl acetate from ethylene, acetic acid and oxygen comprising feeding ethylene and acetic acid into a fluid bed reactor through a first inlet, introducing the oxygen into the reactor through a second inlet, co-joining the oxygen, ethylene and acetic acid in the reactor in contact with a fluid bed catalyst to produce vinyl acetate. The particle size diameter of the particulate catalyst material has a range of 60% of the particles being below 200 microns (0.1 mm) with no more than 40% of the particles being below 40 microns (0.04 mm).

Fluid bed process for the acetoxylation of ethylene in the production of vinyl acetate

A catalyst comprising a complex of catalytic oxides comprising rubidium, cerium, chromium, iron, bismuth, molybdenum, and at least one of nickel or nickel and cobalt, optionally magnesium, and optionally one of phosphorus, antimony, tellurium, sodium, lithium, potassium, cesium, thallium, boron, germanium, tungsten calcium, wherein the relative ratios of these elements are represented by the following general formula:RbCeCrMgAFeBiYMoOwherein A is Ni or the combination of Ni and Co,

A process for increasing the yield of acetonitrile produced during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propylene and propane, a carboxylic acid, ammonia and air into a reaction zone containing an ammoxidation catalyst, reacting the hydrocarbon, carboxylic acid, ammonia and oxygen over said catalyst at an elevated temperature to produce acrylonitrile, hydrogen cyanide and acetonitrile, and recovering the acrylonitrile, hydrogen cyanide and acetonitrile from the reactor.

Ammoxidation of carboxylic acids to a mixture of nitriles

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:ABCFeBiCoCeSbMoOwherein 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.

A process for the preparation of a fluid bed vinyl acetate (VAM) catalyst comprising impregnating a support comprising a mixture of substantially inert microspheroidal particles with a solution comprising a metal salt of Pd and M, wherein M comprises Ba, Cd, Au, La, Nb, Ce, Zn, Pb, Ca, Sr, Sb or mixtures thereof, reducing the metal salts to form a deposit of Pd and M on the support surface and impregnating the support with at least one alkali metal salt. At least 50% of the particles used for the microspheroidal support have a particle size below 105 microns.

Process for the preparation of fluid bed vinyl acetate catalyst

Method for the manufacture of acrylic acid

A process for regenerating molybdenum containing ammoxidation catalyst comprising replacing the molybdenum loss from the catalyst during the ammoxidation reaction wherein ammonium dimolybdenum is utilized as the source for replacement of the molybdenum loss from the original catalyst.

Performance of used molybdenum based catalysts by the addition of

A catalyst composition comprising a complex of catalytic oxides of iron, bismuth, molybdenum and calcium and characterized by the following empirical formula:

Catalyst for the manufacture of acrylonitrile and hydrogen cyanide

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Willowick, OH, United States of America

Christos Paparizos