Patent ID: 6194344
Filing Date: 2001-02-27
Classification: B01J,C04B,C10C

Abstract:
A process for preparing carbonaceous material carrying ultrafinely dispersed metal comprising the steps of:obtaining a starting material comprising one selected from the group consisting of a heavy oil having an H/C atomic ratio in the range of between about 0.8 and 1.2 and substantially free from components insoluble in BTX solvent, and a low-softening-point pitch derived from said heavy oil by distilling off light components therefrom;shaping the starting material into a micro-shaped material comprising a form selected from the group consisting of particles, liquid particles, powders, and fibers having a size of 100 .mu.m or less,contacting the micro-shaped material with an organic solvent which allows at least 10 wt. % of the micro-shaped material to remain insoluble as insoluble components, and extracting 20-90 wt. % of the light components contained in the micro-shaped material so as to obtain a high softening point pitch which has a softening point of 150.degree. C. or higher when measured by the temperature gradient method, undergoing a weight loss of 5 wt. % or less when heated up to 300.degree. C., and has mesopores of 100 mm.sup.3 /g or greater, in terms of minute pore volume calculated by the Dollimore-Heal method from an adsorption isotherm of nitrogen at liquid nitrogen temperature;contacting this high-softening-point pitch with an anionic surface active agent to obtain a high-softening-point pitch on which the anionic surface active agent has been adsorbed;forming an aqueous solution incorporating a metal salt; andbringing this high-softening-point pitch on which the anionic surface active agent has been adsorbed into contact with the aqueous solution of a metal salt to replace the cation of the surface active agent with the metal ion.