Ube Industries, Inc.

Produits Chimiques Ugine Kuhlmann

Tokuo Matsuzaki

Kyoji Ohdan

Yasuo Nakamura

Sumio Umemura

Mikio Hidaka

Taizo Uda

Masao Tsuruoka

Nobuyuki Kuroda

Takato Nakamura

Takumi Manabe

Koji Abe

Keigo Nishihira

Shuji Tanaka

Satoru Fujitsu

Mitsuo Yamanaka

Hirofumi Takemoto

Tsunemi Sugimoto

Yasushi Shiomi

Katsuro Masunaga

Hiroshi Shiraishi

Yuki Nishida

Takayoshi Kaneko

Osamu Yamazaki

Tetsuro Kawashita

Hiroyuki Asada

Yoshinobu Toriyahara

Tuneo Shimamura

Kunioki Kodama

Masao Sawazi

Tsuruoka, Masao

In reduction of an epoxy group-containing organic compound, for example, a C -C saturated or unsaturated epoxy cycloaliphatic compound, in the presence of a nickel catalyst, by bringing the compound into contact with hydrogen, the target compound can be produced at a high yield by adding a basic substance (for example, an alkali metal hydroxide, an alkali metal carbonate, an alkali metal alkoxide, and an amine compound having 1 to 3 C -C alkyl groups), to the reduction reaction system, to thereby restrict production of by-products due to a side deoxidation reaction.

Method of reducing epoxidized organic compound with hydrogen

Epoxidized C -C cyclohydrocarbon compounds, for example, epoxidized C -C cycloalkanes, cycloalkenes and/or cycloalkadienes are converted to cycloalkanols, cycloalkanones and cycloalkanes by hydrogenating the epoxidized C -C cyclohydrocarbon compounds with hydrogen under a pressure of 0.1 to 5.4 MPa at a temperature of 100 to 280&deg; C. in the presence of a catalyst containing at least one platinum group metal, for example, Pd or Ru.

Method of hydrogenating epoxidized C6&mdash;C12 cyclohydrocarbon compounds

A dehydration catalyst useful for producing a monoalkylether of dihydric phenolic compound by a dehydration reaction of a dihydric phenolic compound with a lower alkyl alcohol with a high conversion at a high selectivity, comprises at least one inorganic substance of the empirical formula (I):

Dehydration catalyst and process for producing a monoalkylether of a

A porous lithium aluminate carrier for catalyst has a spinel structure which has a mean pore diameter in the range of 40 to 1,000 angstroms and a total pore volume in the range of 0.2 to 1.5 mL/g. The porous lithium aluminate carrier can be used for supporting a catalyst compound containing a platinum group metal. The catalyst on the carrier can be favorably employed for promoting catalytic reaction of a nitrite ester and carbon monoxide to prepare a carbonate diester such as dimethyl carbonate.

Porous lithium aluminate carrier of spinel structure for catalyst

Disclosed is a process for preparing carbonic diester comprising the formation of carbonic diester by the vapor phase catalytic reaction of an alkyl nitrite and carbon monoxide in the presence of a solid catalyst, wherein platinum group metal ion in the solid catalyst is exchanged on an ion exchange zeolite carrier.

Process for preparing carbonic diester

Method of producing carbonic acid diester

In a process for preparing a diester of oxalic acid by the vapor phase catlytic reaction of carbon monoxide with an ester of nitrous acid in the presence of a catalyst composed of a solid carrier and a catalyst component supported on the carrier, the improvement wherein said catalyst component is composed of

Process for the preparation of a diester of oxalic acid

Acrylonitrile is produced from propylene in an excellent percent conversion of propylene, percent selectivity to acrylonitrile and percent yield of acrylonitrile, by bringing, at an elevated temperature, a reaction feed containing propylene, molecular oxygen and ammonia, each in gas phase, into contact with a catalyst consisting essentially of an oxide composition of the empirical formula:

Process for the catalytical preparation of acrylonitrile

Acrylonitrile can be catalytically produced with a high yield by bringing, at an elevated temperature, preferably of 300.degree. to 470.degree. C., a reaction feed containing propylene, ammonia and molecular oxygen into contact with a catalyst consisting of an oxide composition of the empirical formula: Mo.sub.a Co.sub.b Fe.sub.c X.sub.d O.sub.e wherein X denotes at least one atom of an element selected from phosphorus, arsenic, antimony and bismuth and wherein the ratio a:b:c:d:e is in a range of 12:4 to 9:1 to 5:0.01 to 0.07:39.5 to 52.7, said catalyst being prepared by providing an aqueous mixture containing molybdenum-, cobalt- and iron-containing compounds and a phosphorus-, arsenic-, antimony- or bismuth-containing compound, converting the aqueous mixture into a dried solid mixture and calcining the solid mixture at a temperature of at least 550.degree. C.

Method for the catalytical production of acrylonitrile

High-yield catalytic production of acrylonitrile at an elevated temperature, from a reaction mixture containing propylene, ammonia and molecular oxygen, utilizing a catalyst comprising an oxide composition having the empirical formula Mo.sub.a Co.sub.b Fe.sub.c X.sub.d O.sub.e wherein X denotes at least one atom of an element selected from among calcium, tungsten, chromium, zirconium, titanium, zinc, manganese, and tin and the atomic ratio a:b:c:d:e is in the range of 12:4 to 10:1 to 6:0 to 1.0:40 to 70, said catalyst being prepared by providing an aqueous mixture containing compounds of the elements, drying the aqueous mixture, and calcining the dried solid product at a temperature of at least 500.degree. C.

Method for the catalytic production of acrylonitrile

Acrylonitrile can be produced in a high yield by the catalytical ammoxidation of propylene at an elevated temperature, preferably of 330.degree. to 470.degree. C, in the presence of a new type of catalyst consisting of an oxide composition of the empirical formula: Mo.sub.a Co.sub.b Fe.sub.c Bi.sub.d X.sub.e O.sub.f wherein X denotes at least one atom of an element selected from vanadium and tellurium and wherein the ratio a:b:c:d:e:f is in a range of 10:3 to 10:1 to 7:0.1 to 0.7:0.01 to 1:34.6 to 54.1, said catalyst being prepared by providing an aqueous mixture containing molybdenum-, cobalt- and iron-containing compounds, bismuth-containing compound, and vanadium-or tellurium-containing compound, converting the aqueous mixture into a dried solid mixture and calcining the solid mixture at a temperature of at least 500.degree. C.

Method for the catalytical preparation of acrylonitrile

Propylene or isobutylene is catalytically oxidized into the corresponding nitrile with improved conversions and yields. The catalyst consists essentially of the metals; (A) Mo, (B) Bi, (C) Co, (D) Fe and (E) Zr in the predetermined atomic ratios.

Catalytic ammoxidation of olefins to nitriles

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Ube, Japan

Tokuo Matsuzaki