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Method for producing carbonyl nickel by using copper-nickel alloy raw material

A technology of copper-nickel alloy and nickel carbonyl, which is applied in the direction of nickel carbonyl, can solve the problems of the use of raw materials for the production of nickel carbonyl and the ineffective activation method of copper-nickel alloy.

Inactive Publication Date: 2006-08-23
JINCHUAN GROUP LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Copper-nickel alloy is an intermediate product in the nickel smelting process. Since copper-nickel alloy has no effective activation method, it has not been used as a raw material for the production of nickel carbonyl.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Weigh 500kg of copper-nickel alloy, its main components are: Ni 75.17%, Cu 16.2%, Fe 1.98%, Co 2.01%, S 4.6%, put the copper-nickel alloy in a metallurgical furnace to melt, add sponge copper powder 11.0 kg adjusted the ratio of metal copper to sulfur to 4:1. Then melt the raw material in a metallurgical furnace, keep the furnace temperature at 1400°C, and flow the melt into the water quenching pool at a flow rate of 60Kg / min. The melt is sprayed horizontally, and the horizontal flow rate of the spray gun is controlled to 0.68 mm / s to obtain activated water-quenched copper-nickel alloy particles with a particle size of 1-20 mm, which are sent to the synthesis kettle as activated metal raw materials to participate in the carbonylation reaction. 500 kg of unactivated copper-nickel and water-quenched alloy were put into the reaction kettle in two batches for comparative experiments. The synthesis pressure was 10-13Mpa and the temperature was 150-180°C. After 1 hour of rea...

Embodiment 2

[0014] Weigh 500kg of copper-nickel alloy, its main components are: Ni 75.07%, Cu 16.12%, Fe 1.88%, Co 2.11%, S 4.58%, put the copper-nickel alloy in an electric furnace to melt, add sponge copper powder 10.5kg , to adjust the ratio of metal copper and sulfur to 4:1. Then the raw material is melted in a metallurgical furnace, and the furnace temperature is maintained at 1420°C. The melt flows into the water quenching pool at a flow rate of 60Kg / min. The melt is sprayed horizontally, and the horizontal flow rate of the spray gun is controlled to 0.7m / s to obtain activated water-quenched copper-nickel alloy particles with a particle size of 1-20mm, which are sent to the synthesis kettle as activated metal raw materials to participate in the carbonylation reaction. 500 kg of unactivated copper-nickel and water-quenched alloy were put into the reaction kettle in two batches for comparative experiments. The synthesis pressure was 7-15Mpa and the temperature was 170-180°C. After 1 ...

Embodiment 3

[0016] Weigh 500kg of copper-nickel alloy, its main components are: Ni 76.07%, Cu 15.12%, Fe 2.88%, Co 2.06%, S 3.58%, put the copper-nickel alloy in an electric furnace to melt, add sponge copper powder 11.5kg , to adjust the ratio of metal copper and sulfur to 4:1. Then the raw material is melted in a metallurgical furnace, and the furnace temperature is maintained at 1480°C. The melt flows into the water quenching pool at a flow rate of 70Kg / min. The water temperature in the water quenching pool is 50°C. The melt is sprayed horizontally, and the horizontal flow rate of the spray gun is controlled to 0.75m / s to obtain active water-quenched copper-nickel alloy particles with a particle size of 1-20mm. 500 kg of unactivated copper-nickel and water-quenched alloy were put into the reaction kettle in two batches for comparative experiments. After 1 hour of reaction, the carbonylation rate of nickel was 49%, while the reaction of the alloy raw material after water quenching was ...

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Abstract

The process of producing carbonyl nickel with copper-nickel alloy as raw material includes the first adding Cu or S into the copper-nickel alloy to regulate the Cu / S to 4; the subsequent heating at 1400-1500deg.c to smelt, flowing the melt to quenching pond in the flow rate of 60-80 Kg / min and crushing the melt with sprayed water flow into 1-20 mm size active quenched copper-nickel alloy grains; and the final carbonyl nickel synthesizing process. The said production process converts nickel in the alloy into monomer form favorable to the carbonyl reaction so as to speed the synthesis reaction and realize the production of carbonyl nickel with copper-nickel alloy as raw material.

Description

technical field [0001] The invention discloses a method for producing nickel carbonyl by using copper-nickel alloy as a raw material, relating to a production method for nickel carbonyl. Background technique [0002] Copper-nickel alloy is an intermediate product in the nickel smelting process. Since copper-nickel alloy has no effective activation method, it has not been used as a raw material for the production of nickel carbonyl. In the production process of nickel carbonyl, in order to increase the reaction rate of nickel carbonyl synthesis, reduce the reaction pressure and temperature, thereby increasing production capacity and reducing costs, it is necessary to activate pretreatment of raw materials, and different raw materials adopt different activation pretreatment processes. Finding a method for activating and pretreating copper-nickel alloy raw materials can realize the use of copper-nickel alloy as a raw material for nickel carbonyl production, increase the carbony...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G53/02
Inventor 李永军张强林谭世雄王多冬肖冬明甘振君刘俊李朝平
Owner JINCHUAN GROUP LIMITED
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