Production method and device of nickel sulfate solution

A production method and technology of a production device are applied in the field of production methods and devices of nickel sulfate solution, can solve the problems of high energy consumption and cost, low dissolution rate of nickel raw materials, etc., reduce energy consumption and production cost, and have no impact on product quality , the effect of increasing the dissolution rate

Active Publication Date: 2020-09-22
JINGMEN GEM NEW MATERIAL +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to overcome above-mentioned technical deficiency, propose a kind of production method and device of nickel sulfate solution, solve the technology that nickel raw material dissolution rate is low, energy consumption and cost are high in the existing nickel sulfate solution preparation process in the prior art question

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  • Production method and device of nickel sulfate solution
  • Production method and device of nickel sulfate solution
  • Production method and device of nickel sulfate solution

Examples

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Effect test

Embodiment 1

[0046] Add 2t nickel powder and 3m 3 Concentration is the dilute sulfuric acid of 2.5mol / L, after reaction 8 days, obtain the first nickel sulfate solution; Nickel ion content is 91.8g / L in the first nickel sulfate solution of gained, H + The content is 1.6mol / L. Subsequently, use the siphon to transport the first nickel sulfate solution in the upper tank to the lower tank for standby. After conveying, add 0.3t nickel powder and 3m 3 Concentration is 2.5mol / L dilute sulfuric acid, repeat the above-mentioned preparation process of the first nickel sulfate solution.

[0047] Add 2t nickel powder, 12m 3 The first nickel sulfate solution; start stirring, and add mass fraction of 27.5% hydrogen peroxide at a rate of 200-600 L / h, the catalytic reaction proceeds, and a large amount of heat is generated during the reaction to heat up the solution. After 12 hours of reaction, the first solution is obtained. Nickel disulfate solution. The pH of the obtained second nickel sulfate so...

Embodiment 2

[0051] Add 2t nickel powder and 3m 3 Concentration is the dilute sulfuric acid of 2.5mol / L, after reaction 8 days, obtain the first nickel sulfate solution; Nickel ion content is 83.7g / L in the first nickel sulfate solution of gained, H + The content is 1.7mol / L. Subsequently, use the siphon to transport the first nickel sulfate solution in the upper tank to the lower tank for standby. After conveying, add 0.3t nickel powder and 3m 3 Concentration is 2.5mol / L dilute sulfuric acid, repeat the above-mentioned preparation process of the first nickel sulfate solution.

[0052] Add 2t nickel powder, 12m 3 The first nickel sulfate solution; start stirring, and add mass fraction of 27.5% hydrogen peroxide at a rate of 200-600 L / h, the catalytic reaction proceeds, and a large amount of heat is generated during the reaction to heat up the solution. After 12 hours of reaction, the first solution is obtained. Nickel disulfate solution. The pH of the obtained second nickel sulfate so...

Embodiment 3

[0056] Add 2t nickel powder and 3m 3 Concentration is the dilute sulfuric acid of 2.5mol / L, after reaction 8 days, obtain the first nickel sulfate solution; Nickel ion content is 87.5g / L in the first nickel sulfate solution of gained, H + The content is 1.6mol / L. Subsequently, use the siphon to transport the first nickel sulfate solution in the upper tank to the lower tank for standby. After conveying, add 0.3t nickel powder and 3m 3 Concentration is 2.5mol / L dilute sulfuric acid, repeat the above-mentioned preparation process of the first nickel sulfate solution.

[0057] Add 2t nickel powder, 12m 3 The first nickel sulfate solution; start stirring, and add mass fraction of 27.5% hydrogen peroxide at a rate of 50-200 L / h, the catalytic reaction proceeds, and a large amount of heat is generated during the reaction to heat up the solution. After 33 hours of reaction, the first solution is obtained. Nickel disulfate solution. The pH of the obtained second nickel sulfate sol...

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Abstract

The invention discloses a production method and device of a nickel sulfate solution. The production method comprises the following steps: mixing a first nickel raw material with dilute sulfuric acid for reaction, and then performing solid-liquid separation to obtain first nickel slag and a first nickel sulfate solution with the Ni<2+> content of 80-95 g / L; mixing a second nickel raw material withthe first nickel sulfate solution, then dropwise adding hydrogen peroxide at the rate of 50-600 L / h to control the reaction temperature to be 55-90 DEG C, and carrying out stirring reaction to obtaina second nickel sulfate solution with the Ni<2+> content being greater than 120 g / L. According to the method, the hydrogen peroxide is dropwise added to promote the reaction, heat generated by reaction heat release is used for heating the system, the reaction rate is increased, the nickel sulfate solution with the Ni<2+> content larger than 120 g / L can be obtained within a short time, the subsequent production requirement is met, heating is not needed in the process, and energy consumption and production cost can be remarkably reduced. On the basis of an existing production device, simple modification is carried out, the dissolution rate of the nickel raw material is greatly increased, energy consumption and production cost are reduced, and the product quality of the nickel sulfate solution is not affected.

Description

technical field [0001] The invention relates to the technical field of nickel sulfate preparation, in particular to a production method and device for a nickel sulfate solution. Background technique [0002] Nickel Sulfate (NiSO 4 ) As an important chemical raw material, it is widely used in electroplating, batteries, printing and dyeing, medicine, building materials and other fields, and its performance is closely related to the process methods and equipment used. Generally speaking, the selection of raw materials with less impurity content can promote the quality improvement of nickel sulfate and ensure the stability and high quality of subsequent products. [0003] At present, nickel metal is often used in industry to prepare nickel sulfate solution to improve the stability of nickel sulfate solution. However, in actual production, the inventors found that in the process of preparing nickel sulfate solution by acid-dissolving process using nickel metal powder, the disso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G53/10
CPCC01G53/10Y02P10/20
Inventor 许开华蒋振康薛清华朱君吕小龙黄冬波张刊张于杰邓桥
Owner JINGMEN GEM NEW MATERIAL
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