Preparation method of top-grade pure nickelous chloride

A nickel chloride, high-grade pure technology, applied in nickel halide and other directions, can solve the problems of high-end technology, low purity and high impurity content, and achieve the effect of high production efficiency, high purity and low impurity content

Inactive Publication Date: 2014-10-22
TIANJIN CHEM REAGENT RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technique involves making it easier by creating an easily soluble solution containing pure nickel salt with strong oxidizing properties that can be used for various applications such as catalysts or electrodes.

Problems solved by technology

This patented process involves producing highly pure nickels through adding chemical agents like nitrogen oxides (NOx) or other harmful substances into an aqueous solution containing sodium carbonate at very specific temperatures called temperature range 200-400°C. By reacting with these materials, it becomes possible to produce higher quality products that are suitable for use in various applications such as electronic components manufacturing processes where cleanliness requirements must be met.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A preparation method of superior grade pure nickel chloride, the method is as follows:

[0018] ⑴Reaction of nickel carbonate and hydrochloric acid

[0019] Put 1 kg of nickel carbonate in a glass beaker and heat it at 65°C. With constant stirring, slowly add hydrochloric acid (specific gravity 1.18) and control the reaction temperature at 75°C. When PH=5, stop adding acid and let it sit Place for 20 minutes, filter to obtain solution A;

[0020] ⑵ Concentration to produce high-grade pure nickel chloride

[0021] Concentrate the solution A obtained in step (1), control the temperature at 250° C., concentrate to 20° Be, stop concentrating, then cool, and suck and filter to separate out crystals to obtain superior-grade pure nickel chloride.

Embodiment 2

[0023] A preparation method of superior grade pure nickel chloride, the method is as follows:

[0024] ⑴Reaction of nickel carbonate and hydrochloric acid

[0025] Put 1.5kg of nickel carbonate in a glass beaker and heat it at 70°C. Under constant stirring, slowly add hydrochloric acid (specific gravity 1.18) and control the reaction temperature at 80°C. When PH=4.5, stop adding acid. Stand still for 30 minutes, filter to obtain solution A;

[0026] ⑵ Concentration to produce high-grade pure nickel chloride

[0027] Concentrate the solution A obtained in step (1), control the temperature at 260° C., concentrate to 21° Be, stop concentrating, then cool, and suction filter to separate out crystals to obtain superior-grade pure nickel chloride.

[0028] The present invention adjusts the concentration of the concentrated solution to 20-21 ° Be, and the temperature is controlled at 240-260 ° C. According to the applicant's experiment, when the concentration is less than 20-21 ° B...

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PUM

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Abstract

The invention relates to a preparation method of top-grade pure nickelous chloride, which comprises the following steps: (1) reaction between nickelous carbonate and hydrochloric acid: putting nickelous carbonate in a glass beaker, heating to 65 DEG C, slowly adding hydrochloric acid (the specific gravity is 1.18) while continuously stirring and controlling the reaction temperature at 75 DEG C, stopping adding the hydrochloric acid when the pH value is 5, standing for 20 minutes, and filtering to obtain a solution A; and (2) preparation of top-grade pure nickelous chloride by concentrating: concentrating the solution A obtained in the step (1) to 20 degrees Be while controlling the temperature at 240-260 DEG C, stopping concentrating, cooling, and carrying out suction filtration to precipitate a crystal, thereby obtaining the top-grade pure nickelous chloride. The preparation method has the advantages of simple processing steps, controllable operation steps, advanced technique and high production efficiency. The prepared product has the advantages of high purity and low impurity content, and satisfies the demands of high-end technology.

Description

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Claims

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Application Information

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Owner TIANJIN CHEM REAGENT RES INST
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