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Method for preparing raw material of synthesized nickel carbonyl through residual nickel poles

A technology for nickel residue and nickel carbonyl, which is applied in the field of preparing raw materials for synthesizing nickel carbonyl, and can solve the problems of large anode slime processing capacity and low current efficiency of nickel residue.

Active Publication Date: 2015-04-22
JINCHUAN GROUP LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the shortcomings of the above-mentioned prior art, to provide a method that can effectively solve the shortcomings of low current efficiency and large anode slime treatment capacity when electrolysis is used to treat nickel anode, and can realize the utilization of nickel carbonyl in large-scale production. Method for preparing nickel carbonyl raw material from nickel anode

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Break 15 tons of nickel scraps into 10-20mm pieces, add 450kg of quartz stone and 150kg of limestone into the oxygen oblique-blowing rotary converter, feed in heavy oil or natural gas for smelting, and start blowing when the temperature reaches about 1400-1500°C . Control oxygen pressure 0.5 ~ 1.0Mpa, oxygen flow 400 ~ 1200m 3 / h, blowing time 30~60min, blowing end temperature 1500℃, water quenching temperature 30~50℃, water quenching pressure 0.3~0.5Mpa, water quenching flow 100~200m 3 / h, cooling water flow 400 ~ 500m 3 / h to obtain a water-quenched alloy containing more than 65% nickel and about 6.5% sulfur.

Embodiment 2

[0022] Break 15 tons of nickel scraps into 10-20mm pieces, add 450kg of quartz stone and 150kg of limestone into the oxygen oblique-blowing rotary converter, feed in heavy oil or natural gas for smelting, and start blowing when the temperature reaches about 1400-1500°C . Control oxygen pressure 0.5 ~ 1.0Mpa, oxygen flow 400 ~ 1200m 3 / h, blowing time 30~60min, blowing end temperature 1525°C, water quenching temperature 30~50°C, water quenching pressure 0.3~0.5Mpa, water quenching flow 100~200m 3 / h, cooling water flow 400 ~ 500m 3 / h to obtain a water-quenched alloy containing more than 65% nickel and about 5.0% sulfur.

Embodiment 3

[0024] Break 15 tons of nickel scraps into 10-20mm pieces, add 450kg of quartz stone and 150kg of limestone into the oxygen oblique-blowing rotary converter, feed in heavy oil or natural gas for smelting, and start blowing when the temperature reaches about 1400-1500°C . Control oxygen pressure 0.5 ~ 1.0Mpa, oxygen flow 400 ~ 1200m 3 / h, blowing time 30~60min, blowing end temperature 1545°C, water quenching temperature 30~50°C, water quenching pressure 0.3~0.5Mpa, water quenching flow 100~200m 3 / h, cooling water flow 400 ~ 500m 3 / h to obtain a water-quenched alloy containing more than 65% nickel and about 4.5% sulfur.

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Abstract

The invention relates to a technical method for preparing raw material of synthesized nickel carbonyl through residual nickel poles. The method is characterized in that the residual nickel poles are oxidized and smelted through a converter; the residual nickel poles Ni3S2 is oxidized under a smelting state to generate NiO which reacts with Ni3S2 in a melt to generate Ni, and the produced alloy melt is quenched with water so as to obtain alloy particles which are the raw materials of the synthesized nickel carbonyl. With the adoption of the method, the water quenched alloy particles which meet the requirement on synthesized nickel carbonyl and of which the chemical purity is not less than 65%, the mass ratio of copper to sulfur is 4: 1, and the particle size is 1 to 15mm can be obtained, and thus the raw materials are provided for technically producing the nickel carbonyl by mass.

Description

technical field [0001] The invention relates to a process method for preparing raw materials for synthesizing nickel carbonyl by utilizing nickel anode. Background technique [0002] At present, the raw material nickel for the synthesis of nickel carbonyl is mostly pure nickel or a magnetic primary alloy produced after grinding and floating separation of high matte. A granular water-quenched alloy with a certain copper-sulfur ratio and high activity is obtained after quenching by water atomization. [0003] Due to the low yield of alloys in air blowing and high-matte grinding-floating separation of ordinary converters, it is difficult to meet the demand for raw materials in large-scale industrial production. [0004] At present, the electrolysis method is usually used for the treatment of nickel anode residues. When the electrolysis method is used to treat nickel anode anodes, the current efficiency is not high and the anode sludge treatment volume is large. Contents of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/08C22B7/00C22B23/00C01G53/02
CPCY02P10/20
Inventor 杨志强王芳镇肖冬明江龙王大窝王良冀文利刘世和陈菊华李兵乐谢玉琴沈宝华王英军李智文黄穆文袁良才杨晋平
Owner JINCHUAN GROUP LIMITED
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