Process for preparing transition metal nitrides and transition metal carbonitrides and their reaction intermediates
Patent
·
OSTI ID:7127813
A process for making a precursor to ceramics is described comprising: placing a transition metal halide and an alkali metal borohydride in liquid ammonia solvent resulting in the formation of an insoluble transition metal haloamide and soluble by-products, alkali metal halide and ammonium borohydride; separating the insoluble transition metal haloamide from the solvent and the soluble by-products; reacting the transition metal halomide with a salt in liquid ammonia, the salt being one that will react by displacing the halogen atom of the transition metal haloamide and yield a precursor to ceramics.
- Assignee:
- Dept. of Energy, Washington, DC
- Patent Number(s):
- US 4746501
- OSTI ID:
- 7127813
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
AMIDES
AMMONIA
CERAMICS
CHEMICAL PREPARATION
CHEMICAL REACTION YIELD
ELEMENTS
HALIDES
HALOGEN COMPOUNDS
HALOGENS
HYDRIDES
HYDROGEN COMPOUNDS
NITRIDES
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PNICTIDES
PRODUCTION
REACTION INTERMEDIATES
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
YIELDS
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
AMIDES
AMMONIA
CERAMICS
CHEMICAL PREPARATION
CHEMICAL REACTION YIELD
ELEMENTS
HALIDES
HALOGEN COMPOUNDS
HALOGENS
HYDRIDES
HYDROGEN COMPOUNDS
NITRIDES
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PNICTIDES
PRODUCTION
REACTION INTERMEDIATES
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
YIELDS