Mitsubishi Gas Chemical Company, Inc.

Takeshi Koshikawa

Makoto Takagawa

Hirotaka Tsuruya

Koichi Kanno

Ryuji Fujiura

Toshihiro Hashimoto

Fumitaka Watanabe

A carbon foam obtained by heat-treating a mesophase pitch whose softening point is 300&deg; C. or less according to an elevated flow tester, whose ratio (Daromatic/Daliphatic) of the absorption intensity of an aromatic C&mdash;H stretching vibration, measured with FT-IR, to the absorption intensity of an aliphatic C&mdash;H stretching vibration, measured with FT-IR, is 4.0 or less and whose optically anisotropic content is at least 80%, a graphite foam obtained by heat-treating the carbon foam recited above at a temperature of 2,000&deg; C. or higher and production processes of these.

Carbon foam, graphite foam and production processes of these

Provided is a process for producing benzoyl chlorides which comprises reacting an aromatic aldehyde with chlorine in liquid phase in the presence of inert gas, whereby the generation of benzal chlorides by products whose separation is difficult can be suppressed.

Process for producing benzoyl chlorides

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Tsukuba, Japan

Takeshi Koshikawa