Processing of non-oxide ceramics from sol-gel methods
US-9840443-B2 · Dec 12, 2017 · US
Method for producing metal nitride
US9302913B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9302913-B2 |
| Application number | US-201113812721-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 11, 2011 |
| Priority date | Aug 11, 2010 |
| Publication date | Apr 5, 2016 |
| Grant date | Apr 5, 2016 |
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- Title
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Abstract
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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.
First claim
Opening claim text (preview).
The invention claimed is: 1. 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 Be 3 N 2 , Mg 3 N 2 , Ca 3 N 2 , Ca 2 N, Sr 3 N 2 , Sr 2 N, Ba 3 N 2 , and Ba 2 N, or is at least one member selected from the group consisting of Li 3 N, K 3 N, and Na 3 N. 2. The method according to claim 1 , which comprises 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. 3. The method according to claim 1 , wherein the alkaline earth metal hydride is heated at a temperature of from 700 to 900° C. 4. The method according to claim 1 , wherein a reaction time is from 10 minutes to 48 hours. 5. The method according to claim 1 , wherein a reaction time is from 1 hour to 24 hours. 6. The method according to claim 1 , wherein a reaction time is from 3 to 12 hours. 7. The method according to claim 1 , which comprises 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. 8. 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 Mg 3 N 2 , Ca 3 N 2 , Ca 2 N, Sr 3 N 2 , Sr 2 N, Ba 3 N 2 , and Ba 2 N, or is Li 3 N. 9. The method according to claim 8 , which comprises 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. 10. The method according to claim 8 , wherein the alkaline earth metal hydride is heated at a temperature of from 700 to 900° C. 11. The method according to claim 8 , wherein a reaction time is from 10 minutes to 48 hours. 12. The method according to claim 8 , wherein a reaction time is from 1 hour to 24 hours. 13. The method according to claim 8 , wherein a reaction time is from 3 to 12 hours. 14. The method according to claim 8 , which comprises 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.
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Classifications
with lithium · CPC title
with alkaline-earth metals, beryllium or magnesium · CPC title
- C01B21/06Primary
Binary compounds of nitrogen with metals, with silicon, or with boron, {or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron}(azides C01B21/08) · CPC title
with alkali metals · CPC title
- C01B21/0627Primary
with one or more rare earth metals · CPC title
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- What does patent US9302913B2 cover?
- 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.
- Who is the assignee on this patent?
- Tokoyoda Kazuhiko, Suzuki Shoji, Hatsumori Tomoki, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification C01B21/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 05 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).