Process for producing boron nitride

Details Process for producing boron nitride Process for producing boron nitride

2008-03-11

2008-03-11

Langel, Wayne A. (Department: 1754)

Chemistry of inorganic compounds

Boron or compound thereof

Binary compound

Reexamination Certificate

active

11266157

ABSTRACT:
A process for producing boron nitride of high purity and high thermal conductivity, wherein a oxygen-containing boron compound is reacted with a nitrogen-containing source in the presence of a dopant at a temperature of at least 1000° C. for at least one hour, and wherein the dopant forms metal borate impurities with a vaporizing temperature that is lower than the highest processing temperature in the process.

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