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Method for preparing carbonyl nickel iron powder

A technology for carbonyl-nickel-iron powder and carbonyl-nickel powder, which is applied in the field of preparing carbonyl-nickel-iron powder, can solve the problems of fluctuation of nickel-iron ratio, affecting product quality, difficult control of the ratio of carbonyl-nickel and carbonyl-iron, etc., and achieves stable quality and easy operation. Effect

Inactive Publication Date: 2008-07-02
JINCHUAN GROUP LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the production process of nickel-iron carbonyl powder, nickel carbonyl and iron carbonyl are evaporated in the same evaporator, but because the boiling point difference between nickel carbonyl and iron carbonyl is relatively large, the ratio of nickel carbonyl to iron carbonyl is difficult to control during the evaporation process , resulting in fluctuations in the ratio of nickel and iron in the product, affecting product quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Put the pure nickel carbonyl liquid into the No. 1 evaporator, heat it to 45°C-55°C with hot water, and control the evaporation of nickel carbonyl at 540g / min through the regulating valve and flow meter; put the pure carbonyl into the No. 2 evaporator The iron liquid is heated by steam, heated to 105°C-115°C, and the carbonyl iron evaporation is controlled at 1470g / min through a regulating valve and a flow meter; after decomposition, carbonyl nickel iron powder is obtained. Three samples of powder produced at different times were taken and tested for nickel and iron. The contents of iron and nickel in the powder were 1#: 69.8%, 29.7%; 2#: 69.9%, 29.7%; 3#: 69.8%, 29.8%, the others are impurity elements. Achieved stable product quality.

Embodiment 2

[0012] Put the pure nickel carbonyl liquid into the No. 1 evaporator, heat it to 45°C-55°C with hot water, and control the evaporation of nickel carbonyl at 800g / min through the regulating valve and flow meter; put the pure carbonyl into the No. 2 evaporator The iron liquid is heated by steam, heated to 105°C-115°C, and the carbonyl iron evaporation is controlled at 1400 / min through a regulating valve and a flow meter; after decomposition, carbonyl nickel iron powder is obtained. Three samples of powder produced at different times were taken and tested for nickel and iron. The contents of iron and nickel in the powder were 1#: 59.7%, 29.8%; 2#: 59.8%, 29.7%; 3#: 59.9%, 39.8%, the others are impurity elements. Achieved stable product quality.

Embodiment 3

[0014] Put the pure nickel carbonyl liquid into the No. 1 evaporator, heat it to 45°C-55°C with hot water, and control the evaporation of nickel carbonyl at 800g / min through the regulating valve and flow meter; put the pure carbonyl into the No. 2 evaporator The iron liquid is heated by steam, heated to 105°C-115°C, and the carbonyl iron evaporation is controlled at 1400 / min through a regulating valve and a flow meter; after decomposition, carbonyl nickel iron powder is obtained. Three samples of powder produced at different times were taken and tested for nickel and iron. The contents of iron and nickel in the powder were 1#: 59.7%, 29.8%; 2#: 59.8%, 29.7%; 3#: 59.9%, 39.8%, the others are impurity elements. Achieved stable product quality.

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PUM

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Abstract

The invention relates to a method for preparing carbonyl ferronickel powder, which is characterized by the preparation course that: carbonyl nickel liquid and carbonyl iron liquid are heated respectively in two evaporators and then mixed with CO gas to be decomposed. The method for preparing carbonyl ferronickel powder of the invention has simple operation and obtains ferronickel powder with design ratio stably by adjusting the mixture ratio of carbonyl nickel to carbonyl iron. The content ratio of ferronickel powder can be adjusted at will according to need. The detection on the obtained carbonyl ferronickel powder shows that the ferronickel content in the product is stable, which realizes stable quality of the produced carbonyl ferronickel powder.

Description

technical field [0001] The invention relates to a method for preparing nickel-iron carbonyl powder. Background technique [0002] In the production process of nickel-iron carbonyl powder, nickel carbonyl and iron carbonyl are evaporated in the same evaporator, but because the boiling point difference between nickel carbonyl and iron carbonyl is relatively large, the ratio of nickel carbonyl to iron carbonyl is difficult to control during the evaporation process , resulting in fluctuations in the proportion of nickel and iron in the product, affecting product quality. Contents of the invention [0003] The object of the present invention is to aim at the deficiencies in the above prior art, and to provide a method for preparing ferronickel carbonyl powder that can stabilize the nickel-iron ratio in the carbonyl ferronickel powder and ensure stable product quality. [0004] In order to achieve the above object, the present invention adopts the following technical solutions....

Claims

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Application Information

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IPC IPC(8): C01G53/02C01G49/16
Inventor 张强林肖冬明甘振君王良罗世铭陈芋霞
Owner JINCHUAN GROUP LIMITED
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