Kabushiki Kaisha Kobe Seiko Sho

Yoshitaka Yamamoto

Atsuo Mizuta

Ichiro Kokubo

Yutaka Mito

Yoshiki Sato

Harumasa Tanabe

Jitsuo Kitazawa

Described herein is a process for separating solid indole in refined form with an extremely high degree of purity from a mixture containing more than 50 wt % of indole, in which a pressure of 700-2500 atms is applied to the mixture in a high pressure vessel, and solid-liquid separation is effected continuedly under pressurized state with an initial temperature in the range of 50.degree.-65.degree. C.

Process for separating indole in refined form

A plate-like stock material is rolled or edged to a desired width on an edging stand of an edger. The edging stand is equipped with a pair of vertical rolls. The central axis of at least one of the vertical rolls of the edging stand is tilted within a suitable angle range toward the same direction as the advancing direction of the stock material or toward the direction opposite to the advancing direction of the stock material in a vertical plane parallel to the advancing direction of the stock material. The resulting downward bending deformation is received by a table roller.

Rolling method of plate-like stock material by edger, and continuous hot

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Tsukuba, Japan

Yoshitaka Yamamoto