Preparation method of top-grade pure nickelous chloride

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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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.