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Coarse particle nickel acetate and preparation method thereof

A nickel acetate and coarse particle technology is applied in the preparation of carboxylate, the preparation of carboxylate, chemical instruments and methods, etc. It can solve the problems of different product forms, inconvenient use, etc., and achieves low labor intensity, low process consumption, The effect of high one-time recovery rate

Active Publication Date: 2015-08-26
JIANGXI NUCLEAR IND XINGZHONG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production process of nickel acetate, due to the restriction of the preparation method, the obtained products often have different shapes, including powder and crystal, or a mixture of powder and crystal. These products bring inconvenience to many users, and some of them are simply Can not meet its technological needs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A kind of preparation method of coarse grain nickel acetate, its step comprises:

[0015] (1) Synthesis: First add 125.8mL of mother liquor with seed crystals into the synthesis reaction kettle, heat to 40°C, and stir at a rate of 80-85r / min. 2% basic nickel carbonate, when the pH of the system reaches 3.8~4.0, add another 66g of glacial acetic acid, if the feeding speed is too fast, the reaction speed will be too fast, so that the coarse nickel acetate crystals generated will dissipate the unreacted basic carbonic acid Nickel package, if the feeding speed is too slow, it will affect the production efficiency and increase the proportion of nickel acetate crystals with a particle size of less than 3mm; after all the materials are put in, continue to react for 1-5 hours, and judge by monitoring the pH value of the final reaction solution Whether the reaction is complete, when the pH=3.5~3.7, it is judged that the reaction is over, the pH value is too high, it is easy to e...

Embodiment 2

[0019] A kind of preparation method of coarse grain nickel acetate, its step comprises:

[0020] (1) Synthesis: First add 228.6mL of mother liquor with seed crystals into the synthesis reactor, heat to 40°C, and stir at a rate of 80-85r / min, first add 60g of glacial acetic acid to the mother liquor, and then add a total of For basic nickel carbonate with a mass of 2%, when the pH of the system reaches 3.8~4.0, add another 60g of glacial acetic acid. If the feeding speed is too fast, the reaction speed will be too fast, so that the generated coarse nickel acetate crystals will dissipate the unreacted basic nickel Coated with nickel carbonate, if the feeding speed is too slow, it will affect the production efficiency and increase the proportion of nickel acetate crystals with a particle size of less than 3mm; after all the materials are put in, the reaction will continue for 1-5 hours, and the pH value of the final reaction solution will be monitored. Judge whether the reaction ...

Embodiment 3

[0024] A kind of preparation method of coarse grain nickel acetate, its step comprises:

[0025] (1) Synthesis: first add 257.1mL mother liquor with seed crystals into the synthesis reactor, heat to 40°C, stir at 80-85r / min, first add 90g of glacial acetic acid to the mother liquor, and then add a total of For basic nickel carbonate with a mass of 2%, when the pH of the system reaches 3.8~4.0, add another 90g of glacial acetic acid. If the feeding speed is too fast, the reaction speed will be too fast, so that the coarse nickel acetate crystals generated will dissipate the unreacted basic nickel Coated with nickel carbonate, if the feeding speed is too slow, it will affect the production efficiency and increase the proportion of nickel acetate crystals with a particle size of less than 3mm; after all the materials are put in, the reaction will continue for 1-5 hours, and the pH value of the final reaction solution will be monitored. Judge whether the reaction is complete. When...

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PUM

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Abstract

The present invention discloses coarse particle nickel acetate. The nickel acetate is characterized in that is pale green crystals, has nickel acetate content of greater than 99.0%, an average particle size of not less than 3mm, cobalt content of no more than 0.005%, iron content of no greater than 0.0005%, zinc content of no more than 0.0005%, insoluble content of no more than 0.002%, sulfate content of no more than 0.001%, chloride content of no more than 0.002% and the nitrate content of no more than 0. 002%. The invention also discloses a preparation method of the coarse particle nickel acetate. The present invention provides a process route for producing coarse nickel acetate; compared with the traditional process, the process route has the advanategs of simple production process, easily control of the process parameters, little environmental pollution, high production efficiency, high one-time recovery rate, no special production equipment requirements, low labor intensity and low process consumption; and compared with the conventional nickel acetate, the coarse particle nickel acetate has stable and reliable quality. Therefore, the process with good repeatability is applicable to large-scale production in plants.

Description

technical field [0001] The invention belongs to the technical field of chemical product nickel acetate preparation, and in particular relates to a preparation method of coarse particle nickel acetate. Background technique [0002] Nickel acetate is usually a green crystalline powder, which is produced according to the general preparation method, 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. The biggest advantage of coarse-grained nickel acetate is that it is easy to store, has uniform crystals, low impurity c...

Claims

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Application Information

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IPC IPC(8): C07C51/41C07C53/10C07C51/42
CPCC07C51/412C07C51/42C07C53/10
Inventor 汤森进胡昌文刘元生徐辉龙长江张庆叶为辉陈小娟
Owner JIANGXI NUCLEAR IND XINGZHONG NEW MATERIALS
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