Sumitomo Chemical Company, Limited

Koei Chemical Company, Limited

Shinkichi Shimizu

Tatsuo Shiraishi

Hiroshi Ichihashi

Tadashi Shindo

Akira Iguchi

Nobuyuki Abe

Masanori Doba

Yoshihiko Nagaoka

Takayuki Shoji

Susumu Kishiwada

Toru Nakaishi

Shigeru Honmaru

Tadao Nishizaki

Akihiko Atsumi

Masabumi Tsuda

Hiroshi Sato

Masaru Kitamura

Koichi Nagai

Teruo Matsuda

Nanao Watanabe

Youichi Umada

Ken-ichi Hirose

Hideki Kuranishi

Akira Taguro

Masaaki Iwasa

Hiroshi Fukusen

Sachio Oishi

Takayasu Niwa

Shigern Honmaru

Tetsu Wakabayashi

Hiroyuki Nishikawa

Kanji Kono

Hideki Nakao

Fumiyoshi Kato

A process for preparing a tertiary amine-N-oxide which comprises reacting a tertiary amine with a peroxide in the presence of a catalyst comprising an oxide containing silicon and titanium atoms. According to the process of the present invention, a tertiary amine-N-oxide can be obtained in a high yield, and since the catalyst can easily be separated from the reaction mixture, the tertiary amine-N-oxide can be obtained in a high purity without the contamination by the catalyst.

Process for preparing tertiary amine-N-oxide

The present invention provides a process for producing pyridine bases which comprises reacting an aliphatic aldehyde and/or a ketone with ammonia in the presence of a catalyst in gaseous phase, said catalyst comprising a zeolite containing (a) an element belonging to the platinum group and (b) at least one element selected from the group consisting of the elements of Groups IIB, IIIA and IVA of the periodic table and the having an atomic ratio of Si to elements consisting of Al, B, Fe and/or Ga of about 12 to about 1,000 and a constraint indedx of about 0.8 to about 12.

Process for producing pyridine bases

A process for preparing monoallylamine represented by the formula (II):

Process for preparing monoallylamine

Carbonaceous materials deposited on solid catalysts and produced, for example, in Beckmann rearrangement in a gaseous phase are burned off by effecting the treatment in the presence of alcohols such as methanol or ethanol together with molecular oxygen-containing gas in order to regenerate the catalyst activity.

Regeneration of catalysts by burning in the presence of alcohols

A heteroaromatic nitrile is prepared in high conversion and yield by catalytically reacting an alkyl-substituted heteroaromatic compound with molecular oxygen and ammonia in the presence of a catalyst having the following composition:

Process for preparing nitriles

Process for producing pyridine bases by reacting an aliphatic aldehyde and/or ketone with ammonia in gaseous phase in the presence of a catalyst, characterized by using a catalyst which is obtained by modifying a zeolite having an atomic ratio of Si to Al, Fe and/or Ga of 12 to 1,000 and a constraint index of about 0.8 to about 12 with at least one metal ion and/or metal compound selected from the group consisting of thallium, lead and cobalt.

A heteroaromatic nitrile is prepared in a high selectivity and yield by catalytically reacting an alkyl-substituted heteroaromatic compound with molecular oxygen and ammonia in a molar ratio of oxygen to ammonia of not larger than 1.6:1 in a gaseous phase in the presence of a catalyst comprising a vanadium-phosphorus oxide of the formula:

A novel method for producing tiglic aldehyde from ethylacrolein by isomerization in the presence of a hydrogenating catalyst is disclosed. According to the invention, tiglic aldehyde can be prepared in a good yield.

Method for the production of tiglic aldehyde

Heteropoly-acids and their production and use

A method for the production of a spherical molded product of a titanium oxide composition comprising adding a titanium oxide composition powder and a mist of an aqueous medium to a seed of an inorganic substance, granulating the mixture with a centrifugal fluidizing coating granulator and calcining the resultant spherical product, which is characteristic in that the granulation of the mixture is carried out by adding the titanium oxide composition powder and the aqueous medium in the ratio of addition rate of 1:0.20 to 1:0.35 by weight, whereby there is obtained a spherical molded product having a larger strength with less abrasion. The spherical molded product obtained by the present invention is useful, for instance, as a catalyst carrier or catalyst for the removal of nitrogen oxides from exhaust gases.

Method for production of spherical molded product containing titanium

A method for the production of a molded product containing titanium oxide, which comprises molding a titanium oxide composition containing a barium compound in the atomic ratio of titanium:barium=100:0.1 to 20. The resulting molded product has excellent strength and is useful, for example, as a catalyst carrier or catalyst, in various shapes such as pellet, bar, ring, sphere, or the like.

Method for production of molded product containing titanium oxide

A process for the selective removal of nitrogen oxides from waste gases containing sulfur oxides as well as nitrogen oxides, which comprises contacting the waste gases with a catalyst comprising active metal oxides consisting of vanadium oxide and at least one of molybdenum oxide and tungsten oxide as a catalytically active component and .alpha.-alumina having a specific surface area of 0.3 to 12 m.sup.2 /g and a pore volume of 0.1 cm.sup.3 /g or more as a carrier wherein the atomic ratio of the vanadium, molybdenum, tungsten and aluminum contained in the carrier alumina is

Selective removal of nitrogen oxides from waste gases containing sulfur

A process for selective removal of nitrogen oxides from waste gases containing 1,500 ppm or less (gas volume) of nitrogen oxides by contacting the waste gases with a metal oxide catalyst containing vanadium oxide and at least one of molybdenum oxide and tungsten oxide with an atomic ratio of the oxide forming elements of:

Selective removal of nitrogen oxides from waste gases using V-Mo-W

In the production of acrylonitrile by a vapor phase reaction of propylene, ammonia and oxygen at an elevated temperature, a process which comprises contacting propylene, ammonia and oxygen with a catalyst composition comprising a catalyst system of the formula: Tl.sub.a P.sub.b Mo.sub.c Fe.sub.d Bi.sub.e X.sub.f O.sub.g wherein X represents one or more of the metals, Ni, Mg and Co, and a, b, c, d, e, f and g represent respectively the relative number of atoms of each component; provided that when c is 12, a is 2 or less, but not 0; b is 0 to 5; d is 0.1 to 5; e is 0.1 to 5; f is 2 to 15; and the value of g depends on the number of the other atoms and is usually from 38.3 to 81.5.

Catalytic process for the production of acrylonitrile

A process for the selective removal of nitrogen oxides from waste gases containing nitrogen oxides, which comprises contacting the waste gases with a metal oxide catalyst having the following formula:

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Hirakata, Japan

Shinkichi Shimizu