Published June 7, 1988 | Version v1
Patent Metadata-only

Process for producing boron nitride

Creators

Description

A process for producing boron nitride is described which comprises mixing boron oxide, orthoboric acid and melamine to form a reaction composition which comprises from about 45 to about 50 weight percent, based on the weight of the reaction composition, of melamine and from about 50 to about 55 weight percent, based on the weight of the reaction composition, of a combination of boron oxide and orthoboric acid. The weight ratio of boron oxide to orthoboric acid is from about 3:1 to about 4:1; and heating the composition to temperature of about 7000C to about 12000C under a non-oxidizing atmosphere to form boron nitride

Availability note (English)

U.S. Commissioner of Patents, Washington, D.C. 20231, USA, $.50.

Additional details

Publishing Information

Imprint Pagination
vp.
IPC:
Int. Cl. C01B 21/064; C01B 31/36.
IPC
Int. Cl. C01B 21/064; C01B 31/36.
Patent number
US patent document 4,749,556/A/

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
19098556
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ACIDIFICATION; BORIC ACID; BORON NITRIDES; BORON OXIDES; CHEMICAL PREPARATION; CHEMICAL REACTION YIELD; HEATING; MELAMINE; VERY HIGH TEMPERATURE
Descriptors DEC
AMINES; AZINES; BORON COMPOUNDS; CHALCOGENIDES; HETEROCYCLIC COMPOUNDS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; NITRIDES; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; SYNTHESIS; TRIAZINES