Preparation method of calcium boride

A technology of calcium boride and calcium oxide, which is applied in the field of metallurgy, can solve the problems of large carbon dioxide emissions and high impurity content, and achieve the effects of low emissions, high product purity, and low environmental pollution

Inactive Publication Date: 2013-12-18
SUZHOU KEYU ELECTRONICS TECH SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Calcium boride is an additive in metal smelting. At present, there are few domestic manufacturers. Most of the raw materials are boron gangue, petroleum coke and calcium carbonate, and they are prepared by high-temperature sintering. also higher

Method used

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Examples

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Comparison scheme
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Embodiment 1

[0012] A kind of preparation method of calcium boride provided by the invention, the method comprises the following steps:

[0013] A, 84g powdery boron carbide and 56g calcium oxide are uniformly mixed;

[0014] B. The mixture was sintered in air at a temperature of 1700° C. for 2 hours to obtain 106 g of calcium boride particles.

Embodiment 2

[0016] A kind of preparation method of calcium boride provided by the invention, the method comprises the following steps:

[0017] A, 84g powdery boron carbide and 56g calcium oxide are uniformly mixed;

[0018] B. The mixture was sintered in air at a temperature of 1800° C. for 1 hour to obtain 106 g of calcium boride particles.

[0019] The calcium boride preparation method disclosed by the invention has the advantages of low carbon dioxide emission in the production process, little environmental pollution, high purity of the produced product and few impurities. At the same time, the method is simple to operate and utilizes large-scale production of enterprises.

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PUM

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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 [0001] The invention belongs to the technical field of metallurgy, in particular to a preparation method of calcium boride. Background technique [0002] Calcium boride is an additive in metal smelting. At present, there are few domestic manufacturers. The raw materials are mostly boron gangue, petroleum coke and calcium carbonate, which are prepared by high-temperature sintering. Also higher. Contents of the invention [0003] In order to solve the problems in the above-mentioned background technology, the object of the present invention is to provide a method for preparing calcium boride with low carbon dioxide emissions and high product purity. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is: [0005] 1, a preparation method of calcium boride, is characterized in that, the method comprises the following steps: [0006] A, powdery boron carbide and calcium oxide are mixed according to the molar ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B35/04
Inventor 不公告发明人
Owner SUZHOU KEYU ELECTRONICS TECH SERVICE
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