- 专利标题: Production of carbides and nitrides
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申请号: US305853申请日: 1994-09-14
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公开(公告)号: US5523269A公开(公告)日: 1996-06-04
- 发明人: David L. Morgan , Vladimir Cukan
- 申请人: David L. Morgan , Vladimir Cukan
- 申请人地址: ZAX Transvaal
- 专利权人: Enerkom (Proprietary) Limited
- 当前专利权人: Enerkom (Proprietary) Limited
- 当前专利权人地址: ZAX Transvaal
- 优先权: ZAX92/6177 19920817
- 主分类号: C01B31/02
- IPC分类号: C01B31/02 ; C01B21/06 ; C01B31/30 ; C01B31/34 ; C01B31/36 ; C10C3/02 ; C10C3/08 ; D01F6/00 ; D01F9/145 ; D01F9/15 ; D01F9/24
摘要:
A method of making a compound selected from metal and silicon carbides and nitrides includes the steps of providing a solution of a coal-derived material in a solvent, the coal-derived material having a composition, free of solvent, of 70 to 91 percent by mass of carbon, 2 to 6 percent by mass of hydrogen and 3 to 20 percent by mass of oxygen, and a source of an oxide of silicon or the metal, causing the coal-derived material in solution and the source of the oxide to interact, removing the solvent to form a precursor and heat treating the precursor to produce the compound.
公开/授权文献
- US4959853A Frequency responsive selective ringing circuit 公开/授权日:1990-09-25