Nickel carbonate preparation method

A technology of nickel carbonate and ammonium bicarbonate, applied in the direction of nickel carbonate, etc., can solve the problems of high environmental and process requirements, difficult harmless treatment, etc., and achieve the effects of low production cost, short production cycle and simple process

Inactive Publication Date: 2016-04-20

宁波繁盛商业管理有限公司

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Problems solved by technology

[0003] The method for preparing nickel carbonate is mainly prepared by the chemical reaction of alkali metal carbonate and nickel sulfate, which has h...

Abstract

The invention relates to a nickel carbonate preparation method. The method includes the steps that ammonium nickel sulfate is fully dissolved in water, and a nickel salt aqueous solution is prepared; ammonium bicarbonate in a certain proportion is added into the nickel salt aqueous solution and stirred and dissolved at room temperature, the mixture is placed in a high-pressure reaction kettle with a polytetrafluoroethylene lining and heated to 210-250 DEG C in a closed mode, and the temperature is preserved for 2-8 hours; the obtained product is filtered, repeatedly washed with water and dried; after heating at the temperature of 260-295 DEG C, nickel carbonate can be obtained. The preparation method has the advantages of being simple in preparation technology, cheap in raw material, short in production period, mild in condition, high in production purity, uniform in appearance and the like.

Application Domain

Nickel carbonates

Technology Topic

Nickel saltAqueous solution +8

Examples

Experimental program(3)

Example Embodiment

[0014] Example 1:

[0015] Take 0.02 mol of nickel ammonium sulfate, then add 500 mL of distilled water, stir to fully dissolve it, add 0.08 mol of ammonium bicarbonate at room temperature, stir to dissolve uniformly, add to the reaction kettle, seal and react at 210°C for 4 hours. After the reaction, the product was filtered, washed repeatedly with water, and dried at 120°C to obtain nickel bicarbonate, which was heated at 260°C for 2 hours, and the product was analyzed as pure nickel carbonate according to the XRD pattern results.

Example Embodiment

[0016] Example 2:

[0017] Take 0.03 mol of nickel ammonium sulfate, then add 200 mL of distilled water, stir to fully dissolve it, add 0.12 mol of ammonium bicarbonate at room temperature, stir to dissolve uniformly, add to the reaction kettle, seal and react at 240°C for 2 hours. After the reaction, the product was filtered, washed repeatedly with water, and dried at 100°C to obtain nickel bicarbonate powder, which was heated at 280°C for 3 hours to obtain nickel carbonate.

Example Embodiment

[0018] Example 3:

[0019] Take 0.02 mol of nickel ammonium sulfate, then add 50 mL of distilled water, stir to fully dissolve it, add 0.1 mol of ammonium bicarbonate at room temperature, stir to dissolve uniformly, add to the reactor, seal and react at 220°C for 8 hours. After the reaction, the product was filtered, washed repeatedly with water, and dried at 80°C to obtain nickel bicarbonate, which was heated to 295°C for 2 hours to obtain nickel carbonate.

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Classification and recommendation of technical efficacy words

Simple process
reduce manufacturing cost

Nickel carbonate preparation method

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Examples

Example Embodiment

Example Embodiment

Example Embodiment

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Description & Claims & Application Information

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