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U.S. Department of Energy
Office of Scientific and Technical Information

Method for producing pure monocarbides, mononitrides, and carbonitrides

Patent ·
OSTI ID:7145658

Pure monocarbides, or pure mononitrides or carbonitrides of metals are prepared by first forming a mixture of carbon with an oxalate of the metals and thermally decomposing the metal oxalate in the presence of the carbon by a stream of hydrogen. The hydrogen is removed and monocarbides are then formed by heating the decomposition products in vacuo to carbothermally reduce them. Mononitrides and carbonitrides can be formed by replacing the hydrogen with nitrogen and heating the decomposition products in the nitrogen. Four examples are given illustrating the application to uranium and tantalum compounds.

Assignee:
Gesellschaft fur Kernforschung mbH
Patent Number(s):
US 3976749
OSTI ID:
7145658
Country of Publication:
United States
Language:
English