Mitsubishi Petrochemical Company Limited

Research Association for Utilization of Light Oil

Mitsubishi Jukogyo Kabushiki Kaisha

Catalysts & Chemicals Industries Co., Ltd.

Hitachi, Ltd.

Mitsubishi Petrochemical Engineering Co., Ltd.

Babcock-Hitachi Kabushiki Kaisha

Sakai Chemical Industry Co., Ltd.

Babcock-Hitachi K.k.

Other

Mitsubishi Jukogyo K.k.

Fujimi Kenmazai Kogyo Kabushiki Kaisha

Catalysts & Chemicals Ind. Co. Ltd.

Catalysts & Chemical Co., Ltd.

Makoto Imanari

Hiroshi Iwane

Yoshihisa Watanabe

Morio Fukuda

Masayuki Hanada

Takeo Koshikawa

Akihiro Yamauchi

Kiyoshi Nagano

Fumito Nakajima

Shigeo Uno

Shimpei Matsuda

Takahiro Sugawara

Takatoshi Seto

Masaki Odagiri

Akira Kato

Norihisa Kobayashi

Kozo Iida

Shigeaki Mitsuoka

Masato Takeuchi

Makoto Takeda

Naohiro Nojiri

Touru Seto

Toshikatsu Mori

Kunimasa Takahashi

Naoki Suzuki

Takashi Yokoi

Satoshi Ohtaka

Katufumi Kujira

Hirokazu Tanaka

Yoshiaki Obayashi

Tadao Nakatsuji

Shigeru Nojima

Hiromitsu Shimizu

Jinichi Imahashi

Kazuhiko Nagano

Atsushi Morii

Sadao Kitagawa

Toshikatsu Umaba

Toshio Koyanagi

Toshikuni Sera

Yusaku Arima

Masashi Suzuki

Masashi Inaba

Hiroaki Rikimaru

Tadamichi Aoki

Nobuhiko Fuga

Tadashi Ayusawa

Eiji Taniyama

Yoshinobu Yamaguchi

Isao Okada

Mitsugi Kataoka

Kazuya Mishina

Yoshinori Todo

Teruo Saito

Hiromu Takatsuka

Kenji Takagi

Shoichi Masukawa

Bunzi Oshida

Makoto Takiguchi

Katsufumi Kuzira

Katsuhumi Kuzira

Masaki Miyazawa

Katufumi Kuzira

Takahiro Yoneyama

Horiaki Rikimaru

Masato Tekeuchi

Masato Nakajima

Nanahiko Kitano

Toshiyuki Sugihara

Yuji Ozawa

Bunji Oshida

A process for preparing pyruvate in high yield is disclosed, comprising reacting propylene glycol with molecular oxygen in an aqueous solution in the presence of a platinum catalyst containing a metallic component selected from the group consisting of lead, thallium, and cadmium while controlling the pH of the reaction mixture between 7 and 9. The crude pyruvate can be purified by treating with activated carbon in the presence of water.

Process for preparing pyruvate

A process for the production of a water-soluble carbodiimide, which comprises

Process for production of water-soluble carbodiimide

A process for preparing .alpha.-ketobutyric acid comprising contacting 1,2-butanediol with molecular oxygen in the presence of a platinum catalyst is disclosed. The process produces .alpha.-ketobutyric acid in high yield at low cost.

Process for preparing .alpha.-ketobutyric acid

Disclosed is a process for preparing DL-serine, which comprises synthesizing DL-serine according to Strecker reaction with use of a cyan compound, ammonium chloride, ammonia and a reaction substrate comprising glycol aldehyde, wherein the Strecker reaction is carried out under the reaction conditions of:

Process for preparing DL-serine and process for separation and

There is disclosed a process for preparing glycol aldehyde from ethylene glycol by use of a complex system catalyst comprising copper and other inorganic component, which comprises permitting 0.001 to 0.3 mole of oxygen per one mole of ethylene glycol to be copresent in the reaction system.

Process for preparing glycol aldehyde

A catalyst for denitrizing nitrogen oxides contained in waste gas which contains a substantial amount of arsenic compounds therein, which comprises:

Method for denitrizing nitrogen oxides contained in waste gas

A process for removing nitrogen oxides from an exhaust gas containing the nitrogen oxides and an arsenic compound, which comprises bringing said exhaust gas into contact with a reducing gas in the presence of a catalyst to reduce the nitrogen oxides in the exhaust gas and render them nontoxic. There are disclosed two types of catalysts: (1) a catalyst comprising (A) an oxide of titanium, (B) an oxide of at least one metal selected from tungsten and molybdenum, (C) an oxide of vanadium, and (D) an oxide and/or a sulfate of at least one metal selected from the group consisting of yttrium, lanthanum, cerium and neodymium, and (2) the above (A), (B), (C) components and (D)' at least one metal selected from the group consisting of yttrium, lanthanum, cerium, neodymium, copper, cobalt, manganese and iron, the component (D)' being deposited on zeolite.

Process for removing nitrogen oxides from exhaust gases

A process for preparing 2-(o-aminophenyl)ethanol comprising reducing 2-(o-nitrophenyl)ethanol with hydrogen in the presence of a Raney nickel catalyst is described, in which said reducing is carried out in the presence of a small amount of an alkali compound. The Raney nickel catalyst exhibits improved activity to achieve an increased reaction rate.

Process for preparing 2-(o-aminophenyl)ethanol

A process for preparing 4,4'-dihydroxydiphenylmethane, which comprises reacting phenol with formaldehyde in the presence of an acidic catalyst and separating the aimed 4,4'-dihydroxydiphenylmethane from the crude dihydroxydiphenylmethane thus obtained, is disclosed. According to this process, 4,4'-dihydroxydiphenylmethane can be separated from its isomers and oligomers at a high purity and at a high yield, compared with those achieved by known methods. Thus highly useful 4,4'-dihydroxydiphenylmethane can be advantageously prepared on an industrial scale.

Process for preparing 4,4'-dihydroxydiphenylmethane

A process for preparing p-cumylphenol which comprises reacting phenol and .alpha.-methylstyrene in the presence of an inorganic solid acid catalyst having an acid point of an acid strength Ho of up to -3, for example, activated clay and recovering the aimed p-cumylphenol from the reaction mixture thus obtained by distilling the same while introducing an inert gas such as nitrogen and/or steam into the distillation system is disclosed. The p-cumylphenol thus obtained has a high purity and an improved color compared with those obtained by conventional methods.

Process for preparing p-cumylphenol

A catalyst for removing nitrogen oxides in an exhaust gas, said catalyst containing a first group of many pores having a diameter of 1.times.10.sup.2 .ANG. to less than 1.times.10.sup.3 .ANG. and a second group of many pores having a diameter of 1.times.10.sup.3 .ANG. to 1.2.times.10.sup.5 .ANG., the pore volume of the first group being at least 10% based on the total pore volume of the first group and the second group, and said catalyst comprising titanium and at least one metal selected from molybdenum, tungsten and vanadium as metal elements of catalytically active ingredients.

Catalyst for removing nitrogen oxides in exhaust gases

Here is provided an adsorbent for adsorbing and removing an arsenic compound which becomes a catalyst poison in a selective contact reduction process for removing nitrogen oxides (NOx) from a combustion exhaust gas by the use of an ammonia as a reducing agent and a denitrating catalyst. The adsorbent of the present invention comprises a material in which the total volume of pores is 0.2 to 0.7 cc/g and the volume of the pores having a pore diameter of 300 .ANG. or more is 10% or more with respect to the total pore volume, and the material is a specific element, its oxide, an ion-exchanged zeolite or the like. In addition, the present invention is directed to a method for removing the arsenic compound from the combustion exhaust gas by injecting the adsorbent into the flow of the gas on the upstream side of the denitrating catalyst.

Adsorbent for arsenic compound and method for removing arsenic compound

A denitration catalyst comprising an oxide of titanium, an oxide of tungsten and an oxide of vanadium as catalytically active ingredients and having a specific surface area, measured by the BET method, of 80 to 200 m.sup.2 /g and a pore volume, measured by the mercury penetration method, of 0.1 to 0.5 cc/g.

Denitration catalyst for reducing nitrogen oxides in exhaust gas

A process for producing an indole by catalytic reaction of a 2-(o-aminoaryl)ethanol, said reaction being carried out by heating in a liquid phase in the presence of an alkali metal using a catalyst containing a metal selected from the group consisting of a platinum-group metal, nickel and copper. The process is industrially advantageous in that indoles are produced in high yield.

Process for producing indoles

Growing community of inventors

Ami, Japan

Makoto Imanari