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Method for enhancing activity of raw material for preparing nickel carbonyl

A technology of nickel carbonyl and raw materials, applied in the direction of nickel carbonyl, etc., can solve the problems of destroying oxide film, reducing reaction rate, increasing production cost, etc., and achieves the effect of increasing carbonylation rate, increasing sulfur content, and being easy to implement

Inactive Publication Date: 2015-04-29
JINCHUAN GROUP LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the surface of the nickel crystal in the nickel raw material is easy to form a layer of oxide film, this layer of oxide film hinders the further contact between carbon monoxide and the nickel crystal, so that the reaction rate of the carbonylation process is reduced, resulting in a decrease in the carbonylation rate, resulting in a nickel oxide film in the production process. The carbonylation rate of the raw material is reduced, which increases the production cost. By reducing with hydrogen, the oxide film is destroyed to a certain extent, and the reaction can only be carried out, and the activity and reaction speed of the raw material cannot be improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The nickel content is 60%, 4 tons of nickel raw materials are placed in the reduction furnace, and pure hydrogen is used for reduction, and pure carbon monoxide gas at 9MPa and 160°C enters the synthesis kettle to react with the nickel raw materials. Continuously feed carbon monoxide gas until the reaction ends and no longer produces nickel carbonyl liquid, and finally produces nickel carbonyl liquid 2.7m 3 , The carbonylation rate of nickel raw material is 51%.

Embodiment 2

[0013] Put the nickel content at 60%, 4 tons of nickel raw materials in the reduction furnace, use SO 2 4% hydrogen is reductively activated, the sulfur content of the raw material is increased from 0.43% to 1.9%, and pure carbon monoxide gas at 9MPa and 160°C enters the synthesis kettle to react with the nickel raw material. Continuously feed carbon monoxide gas until the reaction ends and no longer produces nickel carbonyl liquid, and finally produces nickel carbonyl liquid 4.23m 3 , The carbonylation rate of nickel raw material is 80%.

Embodiment 3

[0015] Put the nickel content at 60%, 4 tons of nickel raw materials in the reduction furnace, use SO 2 5% hydrogen reduction activation, the sulfur content of the raw material increased from 0.31% to 2.06%, and the pure carbon monoxide gas at 9MPa and 160°C was introduced into the synthesis kettle to react with the nickel raw material. Continuously feed carbon monoxide gas until the reaction ends and no longer produces nickel carbonyl liquid, and finally produces nickel carbonyl liquid 4.39m 3 , The carbonylation rate of nickel raw material is 83%.

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Abstract

The invention provides a method for enhancing activity of a nickel carbonyl raw material, and relates to an improved method for enhancing carbonylation rate by performing activating treatment on a nickel raw material. The method is characterized by comprising the following step: introducing SO2-containing hydrogen into a reducing furnace to react with the nickel raw material in the reducing furnace, thereby enhancing the activity of the nickel carbonyl raw material. The method for enhancing activity of the nickel carbonyl raw material is simple to operate and easy to implement, and has obvious effect. The detection proves that the sulfur content in the nickel raw material is increased from 0.14-0.43% to 1.9-2.42%, and the reaction rate is obviously changed in the carbonylation synthesis process, thereby finally enhancing the carbonylation rate of the nickel raw material.

Description

technical field [0001] A method for improving the activity of a raw material for preparing nickel carbonyl relates to a method for activating the raw material for preparing nickel carbonyl by gasification metallurgy to increase its carbonylation rate. Background technique [0002] At present, the process of preparing nickel carbonyl raw materials by gasification metallurgy method adopts hydrogen reduction of raw materials to speed up the reaction speed of raw materials for nickel carbonyl synthesis. The method usually is to react the nickel raw material with hydrogen under a certain temperature environment. Because the surface of the nickel crystal in the nickel raw material is easy to form a layer of oxide film, this layer of oxide film hinders the further contact between carbon monoxide and the nickel crystal, so that the reaction rate of the carbonylation process is reduced, resulting in a decrease in the carbonylation rate, resulting in a nickel oxide film in the produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G53/02
Inventor 杨志强王芳镇肖冬明江龙王良王大窝田东李兵乐董伟梁涛杨小刚顾小峰沈宝华王英军李智文黄穆文袁良才杨晋平张慧君
Owner JINCHUAN GROUP LIMITED
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