Production process of coarse particle nickel acetate

A production process, technology of nickel acetate, applied in the separation/purification of carboxylic acid compounds, preparation of carboxylate, organic chemistry, etc., can solve the problem of easy agglomeration of powdered nickel acetate, insufficient lump content, affecting product solubility, etc. problems, to achieve the effects of high production efficiency, quality improvement, and high one-time recovery rate

Inactive Publication Date: 2011-04-20
江西核工业兴中科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Powdered nickel acetate is easy to agglomerate, and after agglomeration, it will cause uneven dry humidity inside and outside
Insufficient dryness and insufficient internal content of the lumps will cause secondary agglomeration after packaging; excessive drying will cause surface water loss and affect the solubility of the product
Due to the failure to solve these process problems well, the quality of most nickel acetate products currently on the market is unstable

Method used

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  • Production process of coarse particle nickel acetate

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: the production process of superfine powder grade nickel acetate is described as follows:

[0018] 1. Synthesis: first add a certain amount of glacial acetic acid (content above 99.5%, industrial grade) into the synthesis reaction kettle, and then add basic nickel carbonate (Ni content 19%±1%) to control basic nickel carbonate: ice Acetic acid=1︰1.1~1.5 (molar ratio), the stirring rate is 80~85r / min, according to the reaction situation, add glacial acetic acid and basic nickel carbonate in batches, and continue the reaction until the reaction is complete, pay attention to control the reaction temperature not to exceed 40°C . Whether the reaction is complete can be judged by monitoring the pH value of the final reaction solution. The pH should be controlled at 4.0±0.1. If the pH value is too high, nickel acetate will be easily emulsified. If the pH value is too low, the product will not be easy to dry evenly.

[0019] 2. Dehydration: The synthesized nickel...

Embodiment 2

[0022] The selected raw materials are glacial acetic acid (content 99.6%, industrial grade), basic nickel carbonate (Ni content 19%), basic nickel carbonate: glacial acetic acid = 1: 1.4 (molar ratio), stirring speed 80-85r / min, Process and other process parameters are the same as in Example 1.

Embodiment 3

[0024] The selected raw materials are glacial acetic acid (content 99.8%, industrial grade), basic nickel carbonate (Ni content 20%), basic nickel carbonate: glacial acetic acid = 1: 1.3 (molar ratio), stirring speed 80-85r / min, The reaction temperature is 30-40° C., and the process and other process parameters are the same as in Example 1.

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Abstract

The invention discloses a production process of superfine powdered nickel acetate, which comprises the following steps: synthesis: reacting glacial acetic acid and basic nickel carbonate under the condition of stirring according to the molar ratio, adding the glacial acetic acid and the basic nickel carbonate in batches, and continuously reacting until all substances are fully reacted, wherein the adopted industrial firstclass glacial acetic acid has the content of over 99.5%, the adopted basic nickel carbonate has the Ni content of 19+ / -1%, and the molar ratio of the basic nickel carbonate to the glacial acetic acid is 1:1.1-1.5; dehydration: performing solid-liquid separation on the well synthesized nickel acetate, and recycling the mother liquor; and drying to obtain the superfine powdered nickel acetate. The invention has simple production processes, easily controlled process parameters, small environment pollution, high production efficiency, high one-time recovery, no special requirements for production equipment, low labor intensity and less process consumption; and compared with the existing nickel acetate powder in the market, the obtained product has obviously improved quality, stability, reliability and good process repeatability which is proved by large-scale industrialized production.

Description

technical field [0001] The invention relates to a production process of superfine powder grade nickel acetate. Background technique [0002] Nickel acetate (Nicrel acetate) is usually a green crystalline powder. It is produced according to the general production process, and the formed products are mostly fine crystals and powders. However, with the increasing development of science and technology, the application of nickel acetate is not only limited to fabric mordant, electroplating, surface treatment and ceramic color glaze in general industry, but is also used in precision electroplating and electroplating of high-end electronic materials, so for acetic acid products The quality requirements are getting higher and higher, and only fine crystals can no longer meet market needs. [0003] The biggest advantage of ultra-fine powder grade nickel acetate is that it is easy to mix with other substances, and the material is evenly distributed after mixing. For some production ...

Claims

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Application Information

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IPC IPC(8): C07C53/10C07C51/41C07C51/42
Inventor 汤森进刘元生胡昌文龙长江徐辉朱文超
Owner 江西核工业兴中科技有限公司
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