Townsend and Townsend and Crew LLP
Process for producing silicon carbide
 Disclosed is a process for producing silicon carbide. The process includes the steps of (1) mixing .beta.-resin extracted from coal-tar pitch with .alpha.-resin and silica gel; (2) after being dried, grinding the mixture to powder; (3) heating the powder in an atmosphere of nitrogen with a temperature in the range from 300.degree. C. to 480.degree. C. until mesophase is cultured; and (4) proceeding the heat treatment with a higher temperature in the range from 900.degree. C. to 1200.degree. C. for a period in the range from 2 to 7 hours. By the process, the production of silicon carbide can be carried out at low temperatures so that it is cost-effective in energy consumption. 
Yee Fong Chemical & Ind. Co., Ltd.
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inventional additional additional additional
Yuan-Haun Yu-Shiang
Lee Wu