Mitsubishi Rayon Company, Limited

Mitsubishi Chemical Corporation

Mitsubishi Chemical Engineering Corporation

Dia-Nitrix Co., Ltd.

Hiroyasu Banba

Kiyonobu Niwa

Shigeho Tanaka

Makoto Kano

Takakazu Endo

Takamitsu Kariya

Kozo Murao

Katsuo Ishii

Takeshi Kato

Megumu Morimoto

Tsutomu Hirachi

Keizo Tachibana

Natsuko Morooka

Tomohiko Mawatari

Masahiro Kamide

This method for producing a compound uses a continuous tank reactor which is provided with two or more reaction tanks for producing the compound and with a reaction liquid feeding pipe that feeds a reaction liquid from an upstream reaction tank to a downstream reaction tank, said method being characterized in that the Reynold's number of the reaction liquid that flows in the reaction liquid feeding pipe is configured to be 1800-22000. Furthermore, this compound production system is used in said method for producing a compound, and is formed by housing at least one of the reaction tanks in a portable container.

Method for producing compound and compound production system used in production method

A method for producing acrylamide from acrylonitrile by a biocatalyst method, wherein both evaporation of acrylonitrile into a gas phase and damaging of a catalyst by stirring are prevented, is provided. In the present invention, the production of acrylamide from acrylonitrile by the biocatalyst method comprises feeding acrylonitrile into an aqueous medium comprising a microbial catalyst.

Method for producing acrylamide using microbial catalyst

Provided is a process for producing acrylamide with good storage stability and improved acrylamide polymer physical properties using a microbial catalyst. A microbial catalyst having catalytic activity to convert from acrylonitrile to acrylamide is washed with an aqueous acrylic acid solution, and then the washed microbial catalyst is used for the conversion reaction, so that the production of the above acrylamide is achieved.

Process for producing acrylamide using a microbial catalyst having been washed with aqueous acrylic acid solution

Provided is a method for producing a compound using a biocatalyst. In the method for continuously producing a compound using a biocatalyst in one or a plurality of reaction tanks, the downstream reaction temperature is set higher than the upstream reaction temperature of the flow of the catalyst in a reaction tank or between reaction tanks.

Method of manufacturing compound with biocatalyst by using controlled reaction temperature

There is provided a powdery S,S-EDDS iron complex improved in its caking property. An S,S-ethylenediamine-N,N'-disuccinic acid iron complex, which is crystalline and has an average particle diameter of from 10 to 1000 &#x3bc;m and a water content of not more than 7% by weight, a powdery S,S-ethylene-N,N&#x2032;-disuccinic acid (S,S-EDDS) iron complex having a compressive strength of not more than 1 kg/cm, the compressive strength being measured according to JIS A 1108 after a lapse of 2 months under conditions of a temperature of 50&#xb0; C. and a load of 300 g/cm, and a process for producing the same.

Powdery s,s-ethylenediamine-n,n'-disuccinic acid iron complex and process for producing the same

Crystals of &lsqb;S,S&rsqb;-ethylenediamine-N,N&prime;-disuccinic acid which have a bulk density of 0.45 to 1.2 g/cm , and a process for obtaining these crystals comprising the steps of adjusting an aqueous solution of an &lsqb;S,S&rsqb;-ethylenediamine-N,N&prime;-disuccinic acid metal salt to a temperature of 40 to 80&deg; C. and a pH of 1.9 to 4.5, and cooling the solution to a temperature below 40&deg; C. over a period of 0.2 to 10 hours while supplying a mineral acid so as to maintain the pH at 1.9 to 4.5 to precipitate &lsqb;S,S&rsqb;-ethylenediamine-N,N&prime;-disuccinic acid in a high yield.

&lsqb;S,S&rsqb;-ethylenediamine-N,N&prime;-disuccinic acid crystal with high bulk density and process for obtaining the same

Crystals of &lsqb;S,S&rsqb;-ethylenediamine-N,N&prime;-disuccinic acid with high bulk density and method of obtaining the same

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Yokohama, Japan

Hiroyasu Banba