Title: Process for preparing carbonaceous material carrying ultrafinely dispersed metal
Application Number: 97113177 Application Date: 1997.05.30
Publication Number: 1167807 Publication Date: 1997.12.17
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C10C3/16
Applicant(s) Name: Maruzen Petrochemical Co., Ltd. Address:
Inventor(s) Name: Tsuchitani Masatoshi;Kasamatsu Totonou;Nakatori Ry
Attorney & Agent: FAN WEIMIN
Abstract:
    A process for the preparation of a high-softening-point pitch having a softening point measured by temperature gradient method of 150 DEG C. or higher, a weight loss by heating up to 300 DEG C. of 5 wt.percent or less and mesopores of 100 mm3/g or greater, in terms of minute pore volume calculated by Dollimore-Heal method from an adsorption isotherm of nitrogen at liquid nitrogen temperature, and a process for making carbonaceous materials carrying metal thereon are disclosed. The high-softening-point pitch rich in mesopores can easily provide carbonaceous material carrying metal thereon by using no oxidizing agent such as nitric acid, and, therefore, the high-softening-point pitch rich in mesopores is especially suitable for the production of carbonaceous materials carrying metal thereon or highly crystalline graphitized carbonaceous materials in a short heating time. The process for the production of a high-softening-point pitch rich in mesopores comprises forming micro-shaped carbonaceous materials having a size of 100 mum or less, and contacting the micro-shaped carbonaceous materials with an extracting organic solvent so as to remove 20-90 wt. percent of light components from the micro-shaped carbonaceous materials. A carbonaceous material carrying metal thereon can easily be prepared by contacting the high-softening point pitch rich in mesopores with an aqueous solution of an anionic surface active agent, and then contacting the material treated with the surface active agent with an aqueous solution of metal salts.
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