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Method for producing nickel protoxide

A technology of nickelous oxide and nickel chloride, which is applied in the direction of nickel oxide/nickel hydroxide, etc., can solve the problems of low quality of nickelous oxide products, waste pollution of the environment, high production cost, etc., achieve good practical application value and small environmental pollution , The effect of low production cost

Inactive Publication Date: 2019-05-21
JINCHUAN GROUP LIMITED +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the production method of nickelous oxide is mostly chemical synthesis method, but the production cost of chemical synthesis method is high, the quality of the produced nickelous oxide product is low, and a large amount of waste will be released during the production process to pollute the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for producing nickelous oxide, the method comprising the steps of:

[0019] A. Liquid preparation: Cut the nickel plate into small pieces with a size of 10cm*10cm and dissolve them in hydrochloric acid with a mass concentration of 36% to prepare a nickel chloride solution.

[0020] B. Spray pyrolysis: Pump the nickel chloride solution into the burner with a pressure pump, open the high-pressure air valve, and the high-pressure air and nickel chloride solution are atomized through the atomizer and then enter the roasting furnace at a roasting temperature of 700 ° C. Carry out pyrolysis and roasting to obtain the semi-product of nickelous oxide.

[0021] C. Calcination: The semi-finished nickel oxide is calcined in a resistance furnace at a temperature of 700°C.

[0022] D. Washing: wash the calcined nickelous oxide with water to remove impurities, separate the liquid and solid after washing, put the solid powder into an oven for drying, and the drying temperatu...

Embodiment 2

[0025] A method for producing nickelous oxide, the method comprising the steps of:

[0026] A. Liquid preparation: Cut the nickel plate into small pieces with a size of 10cm*10cm and dissolve them in hydrochloric acid with a mass concentration of 36% to prepare a nickel chloride solution.

[0027] B. Spray pyrolysis: Pump the nickel chloride solution into the burner with a pressure pump, open the high-pressure air valve, and the high-pressure air and nickel chloride solution are atomized through the atomizer and then enter the roasting furnace at a roasting temperature of 800°C. Carry out pyrolysis and roasting to obtain the semi-product of nickelous oxide.

[0028] C. Calcination: The semi-finished nickel oxide is calcined in a resistance furnace at a temperature of 900°C.

[0029] D. Washing: wash the calcined nickelous oxide with water to remove impurities, separate the liquid and solid after washing, put the solid powder into an oven for drying, and the drying temperature...

Embodiment 3

[0032] A method for producing nickelous oxide, the method comprising the steps of:

[0033] A. Liquid preparation: Cut the nickel plate into small pieces with a size of 10cm*10cm and dissolve them in hydrochloric acid with a mass concentration of 36% to prepare a nickel chloride solution.

[0034] B. Spray pyrolysis: pump the nickel chloride solution into the burner with a pressure pump, open the high-pressure air valve, and the high-pressure air and nickel chloride solution are atomized through the atomizer and then enter the roasting furnace at a roasting temperature of 750°C Carry out pyrolysis and roasting to obtain the semi-product of nickelous oxide.

[0035] C. Calcination: The semi-finished nickel oxide is calcined in a resistance furnace at a temperature of 800°C.

[0036] D. Washing: wash the calcined nickelous oxide with water to remove impurities, separate the liquid and solid after washing, put the solid powder into an oven for drying, and the drying temperature ...

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Abstract

The invention discloses a method for producing nickel protoxide. In the method, a nickel plate is dissolved with hydrochloric acid to prepare a nickel chloride solution, the prepared nickel chloride solution reacts through a spray pyrolysis process to produce a high-quality nickel protoxide semi-finished product, the high-quality nickel protoxide semi-finished product is then subjected to calcinating and washing to reduce impurities in nickel protoxide, and the granularity of the high-quality nickel protoxide is reduced through the drying and grinding process to obtain the finished product. The method is specially used for overcoming the defects that nickel protoxide production cost is high, the environmental pollution is high and the product quality is low, the high-quality nickel protoxide is produced through the spray pyrolysis method, and the method is simple in technological operation, low in production cost, small in environmental pollution and remarkable in effect and has quitehigh actual application value.

Description

technical field [0001] The invention belongs to the technical field of nonferrous metallurgy, and in particular relates to a method for producing nickelous oxide. Background technique [0002] Nickel oxide is widely used in daily life. It is used as an adhesive and colorant for enamel in the porcelain industry, as a raw material for pigments in the ceramic industry, and as a raw material for nickel-zinc ferrite in the production of magnetic materials. In the glass industry, it is used as a colorant for brown glass and picture tube glass bulbs, and is also a material for the manufacture of nickel salts, nickel catalysts, and secondary batteries. At present, the production method of nickelous oxide is mostly chemical synthesis method, but the production cost of chemical synthesis method is high, the quality of the produced nickelous oxide product is low, and a large amount of waste will be released during the production process to pollute the environment. Contents of the inv...

Claims

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Application Information

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IPC IPC(8): C01G53/04
Inventor 胡家彦顾永刚魏刚郭幸
Owner JINCHUAN GROUP LIMITED
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