Mitsui Toatsu Chemicals, Incorporated

Nobuyoshi Hashimoto

Tadatoshi Honda

Shiro Asano

Kimiteru Tagawa

Kiyotaka Yoshimura

Mitsuo Onofusa

Michiro Hagiwara

Ryozi Tsuchiya

An automatic analytical apparatus in which a series of operations ranging from the sampling into a treating receptacle, pretreatment, analysis and discharge of a fluid sample to the preparation for the next analysis are repeated automatically in order, wherein the time-dependent variation of the composition is traced successively. This permits the presence of the composition variation or the course of the composition variation to be confirmed or the composition variation to be controlled, automatically.

Method and apparatus for automatic analysis of fluid composition

A process for continuously manufacturing acrylamide by hydrating acrylonitrile in the presence of a free metallic copper catalyst, characterized in that a reactor is employed, which is internally partitioned into a catalyst slurry circulating section and a catalyst precipitating section, and that raw materials and supplementary catalyst are supplied continuously into the reactor and at the same time the clear reaction liquid and a portion of the catalyst are continuously taken out of the reactor so that the properties of the catalyst are maintained constant.

Process for continuously manufacturing acrylamide

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Yokohama, Japan

Nobuyoshi Hashimoto