Process for rapidly producing basic nickel carbonate or basic cobaltous carbonate

A production process and technology of nickel carbonate, applied in nickel carbonate, cobalt carbonate and other directions, can solve the problems of unfavorable operator's health, difficult to grasp process parameters, uneven temperature distribution, etc., and achieve the advantages of application, uniform and fine product particles. , the effect of low cost

Inactive Publication Date: 2010-05-19
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

In addition to the drying, crushing and sieving processes, not only the process cycle is long, but also the process parameters are not easy to grasp, such as the drying process, due to the long time and uneven temperature distribution, the local temperature is too high, which easily causes product dehydration an

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: basic nickel carbonate preparation

[0016] Present embodiment technology comprises the following steps:

[0017] 1. Chemical material: Put nickel chloride and sodium carbonate into different reaction kettles for dissolution (abbreviated as chemical material). After dissolution, it becomes liquid. The dissolution ratio of nickel chloride is: NiCl 2 :H 2 O=1: 4~8 (mass ratio), the dissolving ratio of sodium carbonate is: Na 2 CO 3 :H 2 O=1:4~8 (mass ratio).

[0018] 2. Synthesis: Add alkali solution and nickel chloride solution to another reaction kettle for synthesis reaction. Add alkali solution first, then nickel chloride solution, and stir to control the spraying and stirring speed, and the pH of the solution. The value is adjusted to ≥7.5~9.5; the synthetic reaction time is 2~4 hours.

[0019] 3. Filtration and washing:

[0020] Pump the synthesized slurry into the plate frame for water washing. During the washing process, pay attention to the a...

Embodiment 2

[0022] Embodiment 2: preparation of basic cobalt carbonate

[0023] Adopt the same processing method as embodiment 1, it comprises the following processing steps:

[0024] 1. Put cobalt chloride and sodium carbonate into different reaction kettles for dissolution (referred to as chemical material), and they will become liquid after dissolution. The dissolution ratio of nickel chloride is: CoCl 2 :H 2 O=1: 4~8 (mass ratio), the dissolving ratio of sodium carbonate is: Na 2 CO 3 :H 2 O=1:4~8 (mass ratio).

[0025] 2. Synthesis: Add alkali solution and cobalt chloride solution to another reaction kettle for synthesis reaction. Add alkali solution first, then cobalt chloride solution, and stir to control the spraying and stirring speed, and the pH of the solution. The value is adjusted to ≥7.5~9.5; the synthetic reaction time is 2~4 hours.

[0026] 3. Filtration and washing:

[0027] Pump the synthesized slurry into the plate frame for water washing. During the washing proc...

Embodiment 3

[0029] Embodiment 3: basic nickel carbonate preparation

[0030] In the nickel chloride, sodium carbonate dissolving process in the present embodiment, the nickel chloride dissolution ratio is by mass ratio: NiCl 2 :H 2 O=1:4, the dissolving ratio of sodium carbonate is: Na 2 CO 3 :H 2 O=1:5, other process steps and parameters are identical with embodiment 1.

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PUM

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Abstract

The invention discloses a process for rapidly producing basic nickel carbonate or basic cobaltous carbonate, comprising the following steps of: dissolving, synthetizing, filtering, water scrubbing and drying. The dissolving proportion by weight of nickel chloride or cobalt chloride in the dissolving process is NiCl2:H2O=1:4-8, CoCl2:H2O=1:4-8, and the dissolving proportion by weight of sodium carbonate is Na2CO3:H2O=1:4-8. Aqueous alkali and a nickel chloride or cobalt chloride solution are added by adopting a spray mode in the synthetic process. The synthetic reaction time is 2-4 hours. The invention not only has simple process, short production cycle, low labor intensity and arbitrary enlargement of production scale but also has simple and practicable operation, low cost, stable quality and high efficiency. The process has the characteristics of fast production, high quality of products and high efficiency; products can be turned out after water scrubbing at one time, and therefore, electricity, water, labor and time are saved. The products have even and superfine granules without crushing and sieving, thereby being beneficial to application.

Description

technical field [0001] The invention relates to a rapid production process of basic nickel carbonate or basic cobalt carbonate. Background technique [0002] Basic nickel carbonate [NiCO 3 2Ni(OH) 2 4H 2 O], basic cobalt carbonate [2CoCO 3 3Ni(OH) 2 ·H 2 O] Products are widely used in precision electroplating, printed circuit board electroplating, general alloy electroplating, nickel-cobalt alloy electroforming, ceramic industry, industrial catalysts and other industries. It is widely used and in great demand. At present, there are many domestic enterprises producing this product, but there is a big gap in product quality compared with imported similar products. The main reason is that the production technology is relatively backward, and there are many problems that should be improved and perfected. [0003] At present, the production process of these two products has two kinds of manual operation and semi-mechanized production. Taking the basic carbon nickel product...

Claims

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Application Information

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IPC IPC(8): C01G53/06C01G51/06
Inventor 刘元生刘小平蒋良华汤森进陈小娟曾昭昆于金刚范金星
Owner 江西核工业兴中科技有限公司
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