Production method of basic cobalt carbonate

A production method, the technology of cobalt carbonate, applied in the direction of cobalt carbonate, etc., can solve the problems of high cost, short production cycle, high production cost, etc., and achieve the effects of simple technical process, improved production efficiency, and reduced labor intensity

Inactive Publication Date: 2017-06-13
赣州逸豪优美科实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process is easy to operate and the production cycle is short; however, the performance of the produced product is unstable, easy to oxidize, and the product particles are uneven, and the cobalt metal content can only reach 46%-50%, so it is not conducive to efficient fine production, easy generate great waste
Now, a nano-synthesis method has been developed to produce basic cobalt carbonate materials. Although this technology is relatively advanced and guarantees product quality, the production cost is very high, the equipment and instruments are required to be precise, and the cost is huge. Therefore, Currently, there is no condition for large-scale promotion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A production method of basic cobalt carbonate, comprising the steps of:

[0023] a. Prepare Na 2 CO 3 solution; prepare Na with soda ash 2 CO 3 solution, and Na 2 CO 3 The solution removes calcium and magnesium ions by ion exchange, and Na after removing calcium and magnesium ions 2 CO 3 Solution concentration is controlled at 150g / L, among them, Ca2 CO 3 Add the solution and deionized water into the reaction kettle at a volume ratio of 1:1, raise the temperature to 75°C and stir, Na 2 CO 3 The stirring speed of solution and deionized water is controlled at 65rpm;

[0024] b. Synthesis; CoCl 2 The solution is added to the reaction kettle, and stirred, and the CoCl in the reaction kettle is added 2 The solution concentration is controlled at 100g / Lg / L, and its quality standard requirements are: Cu2 with Na 2 CO 3 The mass ratio is 2.3:1, and sodium ascorbate is added to the reactor to prevent oxidation during synthesis through sodium ascorbate;

[0025] c. ...

Embodiment 2

[0030] A production method of basic cobalt carbonate, comprising the steps of:

[0031] a. Prepare Na 2 CO 3 solution; prepare Na with soda ash 2 CO 3 solution, and Na 2 CO 3 The solution removes calcium and magnesium ions by ion exchange, and Na after removing calcium and magnesium ions 2 CO 3 Solution concentration is controlled at 175g / L, among them, Ca2 CO 3 Add the solution and deionized water into the reaction kettle at a volume ratio of 1:1, raise the temperature to 75°C and stir, Na 2 CO 3 The stirring speed of solution and deionized water is controlled at 70rpm;

[0032] b. Synthesis; CoCl 2 The solution is added to the reaction kettle, and stirred, and the CoCl in the reaction kettle is added 2 The solution concentration is controlled at 103g / L, and its quality standard requirements are: Cu2 with Na 2 CO 3 The mass ratio is 2.3:1, and sodium ascorbate is added to the reactor to prevent oxidation during synthesis through sodium ascorbate;

[0033] c. Agi...

Embodiment 3

[0038] A production method of basic cobalt carbonate, comprising the steps of:

[0039] a. Prepare Na 2 CO 3 solution; prepare Na with soda ash 2 CO 3 solution, and Na 2 CO 3 The solution removes calcium and magnesium ions by ion exchange, and Na after removing calcium and magnesium ions 2 CO 3 Solution concentration is controlled at 200g / L, among them, Ca2 CO 3 Add the solution and deionized water into the reaction kettle at a volume ratio of 1:1, raise the temperature to 75°C and stir, Na 2 CO 3 The stirring speed of solution and deionized water is controlled at 75rpm;

[0040] b. Synthesis; CoCl 2 The solution is added to the reaction kettle, and stirred, and the CoCl in the reaction kettle is added 2 The solution concentration is controlled at 105g / L, and its quality standard requirements are: Cu2 with Na 2 CO 3 The mass ratio is 2.3:1, and sodium ascorbate is added to the reactor to prevent oxidation during synthesis through sodium ascorbate;

[0041] c. Agi...

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PUM

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Abstract

The invention discloses a production method of basic cobalt carbonate. The method realizes efficient pollution-free production of basic cobalt carbonate. The production method comprises the following steps of: a, preparing a Na2CO3 solution; b, synthesizing; c, ageing; d, performing primary filter pressing and washing; e, performing secondary filter pressing and washing; and f, drying. The method is simple in technical process and can be used for quickly producing basic cobalt carbonate; meanwhile, the product quality can be adjusted well by controlling the stirring speed, the reaction temperature and the adding speed of cobalt chloride, an effect of uniform particles is achieved, and the content of cobalt can reach 52%; meanwhile, an additive, namely sodium ascorbate, is added into washing water during reaction to prevent oxidization of the product and is easy for filter pressing; and moreover, the content of impurities in the product is reduced by washing the product with deionized water for many times, and post-washing water can be recycled if being treated. Therefore, the whole production flow is simple in operation and low in cost, the production efficiency is increased while the labor intensity is lowered, and moreover, the method is free of environmental pollution and can be used for large-area popularization.

Description

technical field [0001] The invention relates to the field of chemical product preparation, in particular to a production method of basic cobalt carbonate. Background technique [0002] Cobalt subcarbonate [2CoCO 3 3Co(OH) 2 ·H 2 O] is a purple-red prismatic powder, soluble in dilute acid and liquid ammonia, almost insoluble in cold water, decomposed in hot water, and its water solubility has a lot to do with the source of its shape. It is used as raw material for catalysts and cobalt salts, colorants for ceramic industry, and additives for electronic and magnetic materials. [0003] Basic cobalt carbonate is easy to decompose when heated, and the products of its decomposition are tricobalt tetroxide, carbon dioxide and water. Because it is easy to decompose, the product has less impurities, and it will not cause the problem of nitrogen oxides caused by the decomposition of cobalt nitrate, so it is very suitable for the processing and manufacturing of various cobalt mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G51/06
CPCC01G51/06C01P2006/80
Inventor 熊以俊刘东辉薛国元张信宸
Owner 赣州逸豪优美科实业有限公司
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