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Production of boron nitride

  • US 4,913,887 A
  • Filed: 08/22/1984
  • Issued: 04/03/1990
  • Est. Priority Date: 04/15/1982
  • Status: Expired due to Fees
First Claim
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1. A process for producing amorphous boron nitride, substantially free from hexagonal system boron nitride and oxygen, which comprises heating a mixture consisting of a borohydride of an alkali metal and ammonium chloride at a temperature within a range of from 800°

  • to 1100°

    C. in a non-oxidizing atmosphere.

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