Asahi Kasei Kabushiki Kaisha

Asahi Kasei Kogyo Kabushiki Kaisha

Shinichi Yamamoto

Yukio Yamawaki

Yasuhiro Nagato

Katsuya Shimizu

Tohru Ide

Takao Kitamura

Yoshinaga Tamura

Hirohumi Akiyama

Takahiro Komatsu

A process for producing a long chain N-acyl acidic amino acid removes impurities by separating a mixture composed of a long chain N-acyl acidic amino acid containing an inorganic salt and a medium containing water and tertiary butanol into an aqueous layer and an organic layer containing the long chain N-acyl acidic amino acid at a temperature of from 35 to 80&deg; C.

Process for producing long chain N-acyl acidic amino acid

Process for producing hinokitiol

A process for producing a hydrocarbon fluoride at a high selectivity with minimum formation of by-products is disclosed, which comprises reacting a hydrogen-containing hydrocarbon halide with anhydrous hydrogen fluoride in a liquid phase in the presence of a reaction product of (i) at least one of (a) an oxygen-containing compound selected from the group consisting of H.sub.2 O, H.sub.2 O.sub.2 and an oxygen-containing organic compound, and (b) a nitrogen-containing compound selected from the group consisting of NH.sub.3 and a nitrogen-containing organic compound, (ii) a tin compound selected from the group consisting of a stannic halide, a stannic oxyhalide and an organotin compound, and (iii) anhydrous hydrogen fluoride.

Process for producing hydrocarbon fluoride

Growing community of inventors

Nobeoka, Japan

Shinichi Yamamoto