Abstract: A catalyst composition comprises an acrolein-oxidizing catalyst comprising a mixed metal oxide catalyst of general formula (1): MoVaA1bA2cA3dOm??(I) in which A1 comprises at least one element selected from the group consisting of W and Cu; A2 comprises at least one element selected from the group consisting of Sb, Fe, and Nb; A3 comprises at least one element selected from the group consisting of Y, Ti, Zr, Hf, Ta, Cr, Mn, Re, Ru, Co, Rh, Ir, Ni, Pd, Pt, Ag, Au, Zn, B, Al, Ga, In, Ge, Sn, Si, Te, Pb, P, As, Bi, Se, rare earth elements, alkaline elements, and alkaline earth elements; a ranges from 0.01 to 1.0; b ranges from 0.01 to 1.5; c ranges from 0 to 1.5; d ranges from 0 to 1.0; and m is dependent on the oxidation state of the other elements.

Abstract: Acrolein is produced by selectively oxidizing iso-propanol over a first mixed metal oxide catalyst in the presence of oxygen in the vapor phase. The first mixed metal oxide catalyst comprises oxides of molybdenum and bismuth. Acrylic acid is produced by selectively oxidizing the acrolein over a second mixed metal oxide catalyst in the presence of oxygen in the vapor phase. The second mixed metal oxide catalyst has a different composition from the first mixed metal oxide catalyst.

Abstract: Acrolein is produced by selectively oxidizing iso-propanol over a first mixed metal oxide catalyst in the presence of oxygen in the vapor phase. The first mixed metal oxide catalyst comprises oxides of molybdenum and bismuth. Acrylic acid is produced by selectively oxidizing the acrolein over a second mixed metal oxide catalyst in the presence of oxygen in the vapor phase. The second mixed metal oxide catalyst has a different composition from the first mixed metal oxide catalyst.

Abstract: Acrolein is produced by selectively oxidizing allyl alcohol over a first mixed metal oxide catalyst in the presence of oxygen in the vapor phase. The first mixed metal oxide catalyst comprises oxides of molybdenum and bismuth. Acrylic acid is produced by selectively oxidizing the acrolein over a second mixed metal oxide catalyst in the presence of oxygen in the vapor phase. The second mixed metal oxide catalyst has a different composition from the first mixed metal oxide catalyst.

Abstract: A catalyst composition comprises an acrolein-oxidizing catalyst comprising a mixed metal oxide catalyst of general formula (1): MoVaA1bA2cA3dOm??(I) in which A1 comprises at least one element selected from the group consisting of W and Cu; A2 comprises at least one element selected from the group consisting of Sb, Fe, and Nb; A3 comprises at least one element selected from the group consisting of Y, Ti, Zr, Hf, Ta, Cr, Mn, Re, Ru, Co, Rh, Ir, Ni, Pd, Pt, Ag, Au, Zn, B, Al, Ga, In, Ge, Sn, Si, Te, Pb, P, As, Bi, Se, rare earth elements, alkaline elements, and alkaline earth elements; a ranges from 0.01 to 1.0; b ranges from 0.01 to 1.5; c ranges from 0 to 1.5; d ranges from 0 to 1.0; and m is dependent on the oxidation state of the other elements.

Abstract: Provided is a process for preparing acrylic acid comprising (1) preparing acrolein by catalytic gas phase oxidation comprising (a) providing a reaction gas comprising (i) 5 to 10 mol % propylene, (ii) 0.02 to 0.75 mol % propane, and (iii) 0.25 to 1.9 mol % of a fuel mixture comprising at least one of methane and ethane, wherein the molar ratio of the total amount of propane, methane, and ethane to the total amount of propylene is from 0.01:1 to 0.25:1, (b) contacting the reaction gas with a first mixed metal oxide catalyst to form a mixture comprising acrolein, wherein the first mixed metal oxide catalyst comprises one or more of molybdenum, bismuth, cobalt, and iron, and (2) contacting the acrolein mixture with a second mixed metal oxide catalyst to form a mixture comprising acrylic acid, wherein the second mixed metal oxide catalyst comprises one or more of molybdenum, vanadium, tungsten, copper, and antimony.

Abstract: Provided is a process for preparing acrolein by catalytic gas phase oxidation comprising (a) providing a reaction gas comprising (i) 5 to 10 mol % propylene, (ii) 0.02 to 0.75 mol % propane, and (iii) 0.25 to 1.9 mol % of a fuel mixture comprising at least one of methane and ethane, wherein the molar ratio of the total amount of propane, methane, and ethane to the total amount of propylene is from 0.01:1 to 0.25:1, and (b) contacting the reaction gas with a mixed metal oxide catalyst comprising one or more of molybdenum, bismuth, cobalt, and iron.

Abstract: A method of determining the inertness of a material regarding the formation of heavy by-products during the reaction of propylene to acrolein and acrylic acid.

Abstract: A process for selecting an inert material for use in monomer production regarding the formation of heavy by-products during the reaction of propylene to acrolein and acrylic acid.

Abstract: Provided is a process for preparing acrolein by catalytic gas phase oxidation comprising (a) providing a reaction gas comprising (i) 5 to 10 mol % propylene, (ii) 0.02 to 0.75 mol % propane, and (iii) 0.25 to 1.9 mol % of a fuel mixture comprising at least one of methane and ethane, wherein the molar ratio of the total amount of propane, methane, and ethane to the total amount of propylene is from 0.01:1 to 0.25:1, and (b) contacting the reaction gas with a mixed metal oxide catalyst comprising one or more of molybdenum, bismuth, cobalt, and iron.

Abstract: Provided is a process for preparing acrylic acid comprising (1) preparing acrolein by catalytic gas phase oxidation comprising (a) providing a reaction gas comprising (i) 5 to 10 mol % propylene, (ii) 0.02 to 0.75 mol % propane, and (iii) 0.25 to 1.9 mol % of a fuel mixture comprising at least one of methane and ethane, wherein the molar ratio of the total amount of propane, methane, and ethane to the total amount of propylene is from 0.01:1 to 0.25:1, (b) contacting the reaction gas with a first mixed metal oxide catalyst to form a mixture comprising acrolein, wherein the first mixed metal oxide catalyst comprises one or more of molybdenum, bismuth, cobalt, and iron, and (2) contacting the acrolein mixture with a second mixed metal oxide catalyst to form a mixture comprising acrylic acid, wherein the second mixed metal oxide catalyst comprises one or more of molybdenum, vanadium, tungsten, copper, and antimony.

Abstract: Provided is a process for preparing methacrolein which maximizes capture of methanol. Also provided are processes for producing methacrylic acid and methyl methacrylate.

Abstract: Provided is a process for preparing methacrolein which maximizes capture of methanol. Also provided are processes for producing methacrylic acid and methyl methacrylate.

Abstract: Provided is a process for preparing methacrolein which maximizes capture of methanol. Also provided are processes for producing methacrylic acid and methyl methacrylate.

Abstract: Provided is a process for preparing methacrolein which maximizes capture of methanol. Also provided are processes for producing methacrylic acid and methyl methacrylate.

Abstract: The present invention provides methods for monomer production, for example, acrylic acid, wherein the methods comprise oxidizing one or more reactant gases, for example, propylene, in a fixed bed reactor, preferably, two fixed bed reactors, in the presence of oxygen and a mixed metal oxide catalyst to form an oxidized gaseous mixture and, at any point in the oxidizing, feeding or flowing the one or more reactant gases or the oxidized gaseous mixture through an inert macroporous material that has a pore volume of from 0.2 cm3/g to 2.0 cm3/g, a surface area of from 0.01 to 0.6 m2/g, and wherein from 30 to 98 wt. % of the total pore volume in the inert macroporous material has a pore diameter of at least 100 ?m.

Abstract: The present invention provides methods for monomer production, for example, acrylic acid, wherein the methods comprise oxidizing one or more reactant gases, for example, propylene, in a fixed bed reactor, preferably, two fixed bed reactors, in the presence of oxygen and a mixed metal oxide catalyst to form an oxidized gaseous mixture and, at any point in the oxidizing, feeding or flowing the one or more reactant gases or the oxidized gaseous mixture through an inert macroporous material that has a pore volume of from 0.2 cm3/g to 2.0 cm3/g, a surface area of from 0.01 to 0.6 m2/g, and wherein from 30 to 98 wt. % of the total pore volume in the inert macroporous material has a pore diameter of at least 100 ?m.

Abstract: A process for selecting an inert material for use in monomer production regarding the formation of heavy by-products during the reaction of propylene to acrolein and acrylic acid.

Abstract: A method of determining the inertness of a material regarding the formation of heavy by-products during the reaction of propylene to acrolein and acrylic acid.

Abstract: A process for producing a catalyst for the (amm)oxidation of alkanes comprises calcination of a crystalline mixed metal oxide catalyst partially or wholly in the presence of steam.