Circulation process for circularly reproducing nickel product by utilizing waste nickel liquid

A process and product technology, applied in the field of recycling process, can solve the problems of resource waste, high production cost, single product, etc., and achieve the effect of resource saving, complete industrial chain and reasonable resource utilization

Pending Publication Date: 2020-10-30
JINGMEN GEM NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current industry produces a single product, and there is no systematic treatment of nickel-based fine chemical products, resulting in waste of some resources and high production costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1 of the present invention provides a recycling process for recycling nickel-based products by utilizing waste nickel liquid, and the method is implemented through the following steps:

[0030] Step 1, collecting the waste nickel liquid, subjecting the waste nickel liquid to precipitation and impurity removal, washing and impurity removal, slurry removal and dehydration purification to obtain basic nickel carbonate, specifically: placing the waste nickel liquid in a reaction In the kettle, add an excess of sodium carbonate solution with a concentration of 200g / L to the reaction kettle, stir at a speed of 300rmp / min, and conduct a precipitation reaction at 60°C for 3h to obtain a precipitated nickel salt; use a high temperature of 60°C Purified water was used to circulate and wash the precipitated nickel salt, and then use cold pure water at 20°C to slurry and remove impurities for 5 hours to obtain the nickel salt after removal of impurities; dehydrate the nic...

Embodiment 2

[0036] Embodiment 2 of the present invention provides a recycling process for recycling nickel-based products by utilizing waste nickel liquid, and the method is implemented through the following steps:

[0037]Step 1, collecting the waste nickel liquid, subjecting the waste nickel liquid to precipitation and impurity removal, washing and impurity removal, slurry removal and dehydration purification to obtain basic nickel carbonate, specifically: placing the waste nickel liquid in a reaction In the kettle, add an excess concentration of 240g / L sodium carbonate solution to the reaction kettle, stir at a speed of 400rmp / min, and carry out a precipitation reaction at 90°C for 5h to obtain a precipitated nickel salt; use a high temperature of 75°C Purified water was used to circulate and wash the precipitated nickel salt, and then use 30°C cold pure water to slurry and remove impurities for 10 hours to obtain the nickel salt after removal of impurities; dehydrate the nickel salt af...

Embodiment 3

[0043] Embodiment 3 of the present invention provides a recycling process for recycling nickel-based products by utilizing waste nickel liquid, and the method is implemented through the following steps:

[0044] Step 1, collecting the waste nickel liquid, subjecting the waste nickel liquid to precipitation and impurity removal, washing and impurity removal, slurry removal and dehydration purification to obtain basic nickel carbonate, specifically: placing the waste nickel liquid in a reaction In the kettle, add an excess concentration of 220g / L sodium carbonate solution to the reaction kettle, stir at a speed of 350rmp / min, and carry out a precipitation reaction at 80°C for 4h to obtain a precipitated nickel salt; use a high temperature of 70°C Purified water was used to circulate and wash the precipitated nickel salt, and then use cold pure water at 25°C to slurry and remove impurities for 7 hours to obtain the nickel salt after removal of impurities; dehydrate the nickel salt...

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PUM

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Abstract

The invention discloses a circulation process for cyclically reproducing a nickel product by using waste nickel liquid. The circulation process is implemented by the following steps: collecting the waste nickel liquid, and carrying out precipitation impurity removal, washing impurity removal, slurrying impurity removal and dehydration purification treatment on the waste nickel liquid to obtain basic nickel carbonate; basic nickel carbonate is sequentially subjected to acidification and fluid iron removal treatment, and standard nickel liquid is obtained; the basic nickel carbonate is subjectedto drying, screening and iron removal treatment, and high-purity basic nickel carbonate is obtained; carrying out a synthesis reaction on the high-purity basic nickel carbonate to obtain a battery-grade nickel acetate crystal; collecting the utilized standard nickel liquid, soda nickel carbonate and battery-grade nickel acetate crystals, and carrying out post-treatment to obtain waste nickel liquid; the whole industrial chain is completely and reasonably recycled, green production is achieved, equipment layout is clear, resources are saved, the additional value of products is increased, the environment is improved, secondary pollution is eradicated, and huge economic benefits are brought.

Description

technical field [0001] The invention belongs to a method for chemically preparing nickel-based fine chemical products, in particular to a recycling process for recycling nickel-based products by utilizing waste nickel liquid. Background technique [0002] Nickel has excellent properties and has become an indispensable metal in aviation industry, defense industry and daily life. The mineable nickel resources in the world are divided into nickel sulfide ore and nickel oxide ore. At present, about 70% of the world's nickel is extracted from nickel sulfide ore. However, with the gradual reduction of nickel sulfide ore resources, it is particularly important to recycle the waste nickel liquid produced in the process of extracting nickel. [0003] However, the current industry produces a single product, and there is no systematic treatment of nickel-based fine chemical products, resulting in waste of some resources and high production costs. Contents of the invention [0004] ...

Claims

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Application Information

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IPC IPC(8): C07C51/41C07C51/42C07C53/10
CPCC07C51/412C07C51/42C07C53/10
Inventor 蒋振康陈龙王超吴伟杨春杨洋
Owner JINGMEN GEM NEW MATERIAL
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