CN103449462A - Preparation method of calcium boride - Google Patents
Preparation method of calcium boride Download PDFInfo
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- CN103449462A CN103449462A CN2012101667579A CN201210166757A CN103449462A CN 103449462 A CN103449462 A CN 103449462A CN 2012101667579 A CN2012101667579 A CN 2012101667579A CN 201210166757 A CN201210166757 A CN 201210166757A CN 103449462 A CN103449462 A CN 103449462A
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- calcium boride
- calcium
- boride
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Abstract
The invention relates to a preparation method of calcium boride, the preparation method comprises the following steps: A, mixing powdery boron carbide and calcium oxide according to a molar ratio of 3:2; B, sintering a mixture of step A in air at 1700-1800 DEG C for 1-2 hours to obtain the calcium boride. In the production process of the preparation method, the carbon dioxide emission load is low, the pollution to the environment is less, and a produced product is high in purity and few in impurity.
Description
Technical field
The invention belongs to metallurgical technology field, particularly a kind of preparation method of calcium boride.
Background technology
Calcium boride is the additive in a kind of Metal smelting, and the producer of domestic production at present is less, and raw materials for production adopt boron cash, refinery coke and calcium carbonate more, the high temperature sintering preparation, and the quantity discharged that major defect is carbonic acid gas is larger, and in product, foreign matter content is also higher.
Summary of the invention
In order to solve the problem existed in the above-mentioned background technology, the object of the present invention is to provide the preparation method of the calcium boride that a kind of CO2 emissions is low, product purity is high.
For achieving the above object, the technical solution used in the present invention is:
1, a kind of preparation method of calcium boride, is characterized in that, the method comprises the following steps:
A, pulverous norbide and calcium oxide are mixed according to the mol ratio ratio of 3: 2;
B, by the mixture in steps A at the temperature of 1700-1800 ℃ in air sintering 1-2 hour, can obtain calcium boride.
Preferably, its reaction equation is: 3B
4c+2CaO+2O
2=2CaB
6+ 3CO
2.
Beneficial effect of the present invention is: in production process, the quantity discharged of carbonic acid gas is lower, and environmental pollution is little, and the product purity of production is high, and impurity is few.
Embodiment
Below will the technical scheme in the embodiment of the present invention be clearly and completely described.
Embodiment mono-:
The preparation method of a kind of calcium boride provided by the invention, the method comprises the following steps:
A, the pulverous norbide of 84g and 56g calcium oxide are evenly mixed;
B, by mixture at the temperature of 1700 ℃ in air sintering 2 hours, can obtain calcium boride particle 106g.
Embodiment bis-:
The preparation method of a kind of calcium boride provided by the invention, the method comprises the following steps:
A, the pulverous norbide of 84g and 56g calcium oxide are evenly mixed;
B, by mixture at the temperature of 1800 ℃ in air sintering 1 hour, can obtain calcium boride particle 106g.
The preparation method of a kind of calcium boride disclosed by the invention, in production process, the quantity discharged of carbonic acid gas is lower, and environmental pollution is little, and the product purity of production is high, and impurity is few.Simultaneously, the method is simple to operate, utilizes the scale operation of enterprise.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.Multiple modification to these embodiment will be apparent for those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, realization in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (2)
1. the preparation method of a calcium boride, is characterized in that, the method comprises the following steps:
A, pulverous norbide and calcium oxide are mixed according to the mol ratio ratio of 3: 2;
B, by the mixture in steps A at the temperature of 1700-1800 ℃ in air sintering 1-2 hour, can obtain calcium boride.
2. the preparation method of a kind of calcium boride according to claim 1, is characterized in that, its reaction equation is: 3B
4c+2CaO+2O
2=2CaB
6+ 3CO
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101667579A CN103449462A (en) | 2012-05-28 | 2012-05-28 | Preparation method of calcium boride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101667579A CN103449462A (en) | 2012-05-28 | 2012-05-28 | Preparation method of calcium boride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103449462A true CN103449462A (en) | 2013-12-18 |
Family
ID=49732366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101667579A Pending CN103449462A (en) | 2012-05-28 | 2012-05-28 | Preparation method of calcium boride |
Country Status (1)
| Country | Link |
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| CN (1) | CN103449462A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708485A (en) * | 2013-12-26 | 2014-04-09 | 湖南稀土金属材料研究院 | Preparation method of scandium diboride |
| CN103896297A (en) * | 2014-04-09 | 2014-07-02 | 湖南稀土金属材料研究院 | Preparation method of yttrium tetraboride |
| CN107082643A (en) * | 2016-05-11 | 2017-08-22 | 泰丰新素材（大连）有限公司 | The preparation method of calcium boride |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4888166A (en) * | 1986-09-03 | 1989-12-19 | Georgia Tech Research Corporation | Process for making highly reactive sub-micron amorphous titanium diboride powder |
| CN101857240A (en) * | 2010-06-29 | 2010-10-13 | 山东理工大学 | Industrial preparation method for calcium boride |
| CN102583421A (en) * | 2012-03-07 | 2012-07-18 | 深圳市新星轻合金材料股份有限公司 | Circulated preparation method for producing titanium boride and sodium cryolite synchronously by adopting mixture of sodium-based titanium boron villiaumite as intermediate raw material |
-
2012
- 2012-05-28 CN CN2012101667579A patent/CN103449462A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4888166A (en) * | 1986-09-03 | 1989-12-19 | Georgia Tech Research Corporation | Process for making highly reactive sub-micron amorphous titanium diboride powder |
| CN101857240A (en) * | 2010-06-29 | 2010-10-13 | 山东理工大学 | Industrial preparation method for calcium boride |
| CN102583421A (en) * | 2012-03-07 | 2012-07-18 | 深圳市新星轻合金材料股份有限公司 | Circulated preparation method for producing titanium boride and sodium cryolite synchronously by adopting mixture of sodium-based titanium boron villiaumite as intermediate raw material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708485A (en) * | 2013-12-26 | 2014-04-09 | 湖南稀土金属材料研究院 | Preparation method of scandium diboride |
| CN103708485B (en) * | 2013-12-26 | 2017-01-18 | 湖南稀土金属材料研究院 | Preparation method of scandium diboride |
| CN103896297A (en) * | 2014-04-09 | 2014-07-02 | 湖南稀土金属材料研究院 | Preparation method of yttrium tetraboride |
| CN107082643A (en) * | 2016-05-11 | 2017-08-22 | 泰丰新素材（大连）有限公司 | The preparation method of calcium boride |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131218 |