Mitsubishi Kasei Corporation

Mitsubishi Chemical Corporation

Mitsubishi Chemical Industries Limited

Takashi Ushikubo

Kazunori Oshima

Itaru Sawaki

Ken-ichi Kiyono

Hiroya Nakamura

Tiaki Umezawa

Atsushi Kayo

Satoshi Kobayakawa

Yukio Koyasu

Tsuyoshi Ito

Keisuke Wada

Masayuki Otake

Nobuyuki Murai

Kazuhiko Onuma

Tatsuya Ihara

Hideaki Takumi

Ken Shiraga

Kei Inumaru

Shin Wajiki

Hiroyuki Amatsu

Kazuya Nakamichi

Hisako Tsujiura

Yumiko Kakuno

A method for a gas phase catalytic oxidation reaction of a hydrocarbon, which comprises: subjecting an alkane having a carbon number ranging from 3 to 8 and/or an alkene having a carbon number ranging from 2 to 8 to a gas phase catalytic oxidation reaction to produce a vapor phase oxidation product in the presence of a mixed metal oxide catalyst, wherein the reacion is conducted in the presence of particles substantially inert to the reaction in an amount within a range of the same amount as the amount of catalyst to 99 wt. % in all particles.

Method for gas phase catalytic oxidation of hydrocarbon

A method for producing a nitrile, which comprises a gas phase catalytic oxidation reaction of an alkane with ammonia in the presence of an oxide catalyst of the empirical formula (1):

Method for producing a nitrile

A method for producing a nitrile by a gas phase catalytic oxidation reaction of an alkane with ammonia in the presence of a catalyst, which comprises supplying the alkane and ammonia to an upper stream inlet of the catalyst layer, and separately supplying at least a part of the total amount of ammonia to a downstream position of the catalyst layer located downstream from the upper stream inlet of the catalyst layer.

A catalyst for the production of a nitrile from an alkane, which satisfies the following conditions 1 and 2:

Catalyst for the production of nitriles

A method for the production of maleic anhydride in which a hydrocarbon of 4 to 6 carbon atoms is subjected to a vapor phase catalytic oxidation reaction in the presence of a metal oxide catalyst, characterized in that the metal oxide catalyst includes a metal oxide containing Mo, V, Te and X (X representing one or more elements selected from the group consisting of Nb, Ta, W, Ti, Al, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ni, Pd, Pt, Sb, Bi, B, In, P and Ce) as constituent elements thereof, and the proportion of Mo to the total metal elements in the metal oxide is 0.25 or greater in terms of the atomic ratio, and the atomic ratio of each of the other constituent elements V, Te and X with respect to Mo is in the range of 0.01-1.0. According to the method, the object maleic anhydride may be produced at a high yield using a hydrocarbon of 4 to 6 carbon atoms, particularly n-butane, as the starting material.

Method for the production of maleic anhydride

A process for preparing a catalyst useful for producing a nitrile by a gas phase catalytic oxidation reaction of an alkane with ammonia, which comprises drying a solution or slurry containing molybdenum, vanadium and tellurium by a spray drying method or a freeze-drying method and heat-treating the resulting dried product.

Process for preparing a catalyst useful for producing a nitrile

A method for producing an unsaturated carboxylic acid, which comprises subjecting an alkane to a vapor phase catalytic oxidation reaction in the presence of a catalyst containing a mixed metal oxide comprising, as essential components, Mo, V, Te, O and X wherein X is at least one element selected from the group consisting of niobium, tantalum, tungsten, titanium, aluminum, zirconium, chromium, manganese, iron, ruthenium, cobalt, rhodium, nickel, palladium, platinum, antimony, bismuth, boron, indium and cerium, wherein the proportions of the respective essential components, based on the total amount of the essential components exclusive of oxygen, satisfy the following formulas:

Method for producing an unsaturated carboxylic acid

A process for producing a nitrile, which comprises subjecting an alkane and ammonia in the gaseous state to catalytic oxidation in the presence of a catalyst which satisfies the following conditions of (1) and (2):

Process for producing nitriles

A process for producing a nitrile, which comprises subjecting an alkane and ammonia in the gaseous state to catalytic oxidation in the presence of an oxide of the formula:

A method for preparing a lactam, which comprises subjecting a cycloalkanone oxime to a Beckmann rearrangement reaction in a gas phase in the presence of a carrier-supported catalyst containing tantalum, wherein the carrier-supported catalyst is the one prepared by contacting an organic compound containing tantalum to a silica carrier having pores with pore diameters of from to 150,000 .ANG. wherein the pore volume of pores with pore diameters of from 40 to 2,000 .ANG. is at least 80% of the total pore volume of pores with pore diameters of from 40 to 150,000 .ANG..

Method for producing a lactam

A method for producing methyl isobutyl ketone, which comprises contacting acetone and hydrogen in the presence of palladium and a metal oxide and/or metal hydroxide treated with an organosilicon compound of the formula (I):

Method for producing methyl isobutyl ketone

A process for preparing a sucrose fatty acid ester by interesterification between sucrose and a lower alkanol ester or glyceride of a fatty acid in the presence of an ion exchange resin is disclosed, wherein said ion exchange resin is a cation exchange resin having a carboxyl group having been ion-exchanged with an alkali metal and/or an alkaline earth metal. A sucrose fatty acid can be prepared in a high yield through a simplified recovery and purification step.

Process for preparing sucrose fatty acid esters

A process for producing dimethyl ether useful as a propellant by dehydrating methanol and recovering dimethyl ether from the dehydrated product by distillation, which comprises

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Yokohama, Japan

Takashi Ushikubo