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US 9,302,913 B2Granted
Method for producing metal nitride
AssigneeTaiheiyo Cement Corporation
InventorsKazuhiko Tokoyoda, Shoji Suzuki, Tomoki Hatsumori
Life of this patent
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Abstract
There is provided a method for producing a high-purity metal nitride by simple processes with good yield. Specifically provided is a method for producing a metal nitride including heating a metal hydride under a nitrogen gas or an ammonia gas.
Claims14
A method for producing a metal nitride, the method comprising:
- heating an alkaline earth metal hydride under a nitrogen gas or an ammonia gas and at a temperature of from 600 to 1000° C., thereby obtaining a metal nitride;
- or
- heating an alkali metal hydride under a nitrogen gas or an ammonia gas and at a temperature of from 600 to 800° C., thereby obtaining a metal nitride,
- wherein
- said alkaline earth metal hydride is in the form of a powder,
- said an alkali metal hydride is in the form of a powder, and
- said metal nitride is at least one member selected from the group consisting of Be3N2, Mg3N2, Ca3N2, Ca2N, Sr3N2, Sr2N, Ba3N2, and Ba2N, or
- is at least one member selected from the group consisting of Li3N, K3N, and Na3N.
5 more elements
A method for producing a metal nitride, the method comprising:
- heating an alkaline earth metal hydride under a nitrogen gas or an ammonia gas and at a temperature of from 600 to 1000° C., thereby obtaining a metal nitride;
- or
- heating an alkali metal hydride under a nitrogen gas or an ammonia gas and at a temperature of from 600 to 800° C., thereby obtaining a metal nitride,
- wherein
- said alkaline earth metal hydride is in the form of a powder,
- said an alkali metal hydride is in the form of a powder, and
- said metal nitride is at least one member selected from the group consisting of Mg3N2, Ca3N2, Ca2N, Sr3N2, Sr2N, Ba3N2, and Ba2N, or is Li3N.
4 more elements
Dependencies are inferred from the claim text.