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Nickel-contained materials abstraction and type-reverting production method of nickel salt

A technology of materials and nickel salts, applied in the direction of nickel compounds, nickel ammonia complexes, chemical instruments and methods, etc., can solve the problems of restricting the source of nickel chloride raw materials, poor working environment, serious environmental pollution, etc., and improve labor operations environment, ease production pressure, and simplify the process

Inactive Publication Date: 2008-03-12
JINCHUAN GROUP LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the price of electrolytic nickel continues to rise, the source of raw materials for the production of nickel chloride is restricted. At the same time, chlorine gas leaching is used, and the working environment is poor and the environment is seriously polluted.
Nickel sulfamate is usually prepared by reacting nickel carbonate and sulfamic acid to form nickel sulfamate solution, and then producing nickel sulfamate through evaporation crystallization or freezing crystallization. The raw material is high-quality nickel carbonate, and the production cost is high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Nickel-containing solid material

[0013] name

Ni

co

Cu

Fe

Zn

Ca

Mg

Yellow residue (%)

26.96

0.0088

1.56

0.4

0.28

0.20

0.25

[0014] Leaching process conditions: dissolution temperature > 70 ° C, end point pH value = 2 ± 0.2, nickel solution containing Ni ≥ 70g / L, slag containing nickel (soluble nickel) Ni < 5%

[0015] Pre-extraction solution

[0016] Ni

Cu 2+

Fe 2+

Na +

F -

SO 2-

Cl -

pH

73.68

0.0011

0.0005

3.4

2.8

113.56

15.02

5.0

[0017] Extraction process conditions: organic: kerosene=25%: 75%, organic [H + ]: 0.7~0.8g / L, organic [H + ]: 0.15g / L, compared with nickel extraction: 2.5~4.5:1.

[0018] Transformation conditions: stripped nickel ratio: 6-8:1, stripped hydrochloric acid concentration: 4-6mol / L.

[0019] Transformed Nickel Chloride Solution

[0020] ...

Embodiment 2

[0022] Nickel-containing solid material

[0023] name

Ni

co

Cu

Fe

Zn

Ca

Mg

Yellow residue (%)

27.35

0.0080

1.52

0.38

0.27

0.20

0.15

[0024] Leaching process conditions: dissolution temperature > 70 ° C, end point pH value = 2 ± 0.2, nickel solution containing Ni ≥ 70g / L, slag containing nickel (soluble nickel) Ni < 5%

[0025] Pre-extraction solution

[0026] Ni

Cu 2+

Fe 2+

Na +

F -

SO 2-

Cl -

pH

80.53

0.0012

0.0008

2.9

2.6

115.60

14.13

5.0

[0027] Extraction process conditions: organic: kerosene=25%: 75%, organic [H + ]: 0.7~0.8g / L, organic [H + ]: 0.15g / L, compared with nickel extraction: 2.5~4.5:1.

[0028] Transformation conditions: stripped nickel ratio: 6~8:1, stripped sulfamic acid concentration [H + ]: 4~6mol / L.

[0029] Transformed Nickel Sulfamate Solution

[...

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PUM

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Abstract

An extraction and transformation method to produce nickel salt with material containing nickel relates to an extraction and transformation technology with nickel salt medium solution in the preparation process of nickel salt products, in particular to the preparation of nickelous chloride and nickel sulfamic acid. The present invention is characterized in that the nickel salt solution after purified is extracted by P204 extracting agent and the main metal nickel is led into an organic phase and then the organic phase is back extracted by various acid solution. The nickel is transferred into outer nickel salt solution and then produced to other nickel salt products after the procedures of depth decontamination, evaporating and crystallization. The present invention can enlarge the material range of nickel salt products, greatly improve working environment and save production cost.

Description

technical field [0001] The invention discloses a method for producing nickel salt by extracting and transforming nickel-containing materials, and relates to a method for preparing nickel salt solutions of other media by using nickel sulfate medium solution extraction transform technology in the process of preparing nickel salt products. Especially for the preparation of nickel chloride and nickel sulfamate. Background technique [0002] In the production process of nickel chloride, the raw material is nickel concentrate, which is leached with chlorine gas, and then purified, evaporated and crystallized to prepare nickel chloride solution. As the price of electrolytic nickel continues to rise, the source of raw materials for the production of nickel chloride is restricted. At the same time, chlorine gas leaching is used, which leads to poor working environment and serious environmental pollution. Nickel sulfamate is usually prepared by reacting nickel carbonate and sulfamic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G53/00C01G53/09C01G53/12
Inventor 陈自江李文选齐少伟
Owner JINCHUAN GROUP LIMITED
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