A kind of treatment and purification process of cobalt oxalate defective product

A cobalt oxalate and defective technology, which is applied in the field of processing and purification of defective cobalt oxalate products, can solve problems such as poisoning, and achieve the effects of reducing costs, recycling costs, and reducing losses

Active Publication Date: 2021-12-31
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

However, repeated application of such large doses of cobalt can cause poisoning

Method used

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  • A kind of treatment and purification process of cobalt oxalate defective product
  • A kind of treatment and purification process of cobalt oxalate defective product
  • A kind of treatment and purification process of cobalt oxalate defective product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] A treatment and purification process for cobalt oxalate defective products, comprising the following steps:

[0062] Step 1. Slurry waste cobalt oxalate with water according to the solid-to-liquid ratio of 1:9, then add ammonium carbonate according to the molar ratio of cobalt to ammonium carbonate of 1:1.3, react at 70-99°C for 2-4 hours, and then filter to obtain Cobalt filter residue and ammonium oxalate solution;

[0063] Step 2: Add water to the filter residue of Step 1 according to the solid-to-liquid ratio of 1:11, and add hydrochloric acid at the same time to maintain the pH of the reaction at 0.5-1.5, react at 60-99°C for 1-3 hours, and filter for many times, the filtrate For cobalt chloride solution;

[0064] Step 3, extracting the cobalt chloride solution of step 2 to remove impurities:

[0065] Specifically include the following steps: 1. Sodium saponification of P204: mixing the P204 extractant and solvent oil to form an organic phase, and fully reacting ...

Embodiment 2

[0075] A treatment and purification process for cobalt oxalate defective products, comprising the following steps:

[0076] Step 1. Slurry waste cobalt oxalate with water according to the solid-to-liquid ratio of 1:9, then add ammonium carbonate according to the molar ratio of cobalt to ammonium carbonate of 1:1.4, react at 70-99°C for 2-4 hours, and then filter to obtain Cobalt filter residue and ammonium oxalate solution;

[0077]Step 2: Add water to the filter residue of Step 1 according to the solid-to-liquid ratio of 1:11, and add hydrochloric acid at the same time to maintain the pH of the reaction at 0.5-1.5, react at 60-99°C for 1-3 hours, and filter for many times, the filtrate For cobalt chloride solution;

[0078] Step 3, extracting the cobalt chloride solution of step 2 to remove impurities:

[0079] Specifically include the following steps: 1. Sodium saponification of P204: mixing the P204 extractant and solvent oil to form an organic phase, and fully reacting w...

Embodiment 3

[0089] A treatment and purification process for cobalt oxalate defective products, comprising the following steps:

[0090] Step 1. Slurry waste cobalt oxalate with water according to the solid-to-liquid ratio of 1:9, then add ammonium carbonate according to the molar ratio of cobalt to ammonium carbonate of 1:1.5, react at 70-99°C for 2-4 hours, and then filter to obtain Cobalt filter residue and ammonium oxalate solution;

[0091] Step 2: Add water to the filter residue of Step 1 according to the solid-to-liquid ratio of 1:11, and add hydrochloric acid at the same time to maintain the pH of the reaction at 0.5-1.5, react at 60-99°C for 1-3 hours, and filter for many times, the filtrate For cobalt chloride solution;

[0092] Step 3, extracting the cobalt chloride solution of step 2 to remove impurities:

[0093] Specifically include the following steps: 1. Sodium saponification of P204: mixing the P204 extractant and solvent oil to form an organic phase, and fully reacting ...

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Abstract

The invention discloses a treatment and purification process for defective cobalt oxalate products, comprising the following steps: step 1, adding waste cobalt oxalate to ammonium carbonate to obtain filter residue containing cobalt carbonate and ammonium oxalate solution; step 2, adding the filter residue of step 1 to hydrochloric acid, the filtrate is cobalt chloride solution; step three, the cobalt chloride solution of step two is extracted and removed; step four, the ammonium oxalate solution obtained in step one is concentrated to 50-100g / L; step five, step three obtain The high-quality cobalt chloride solution is added ammoniacal liquor by 5%-30% of cobalt mass to obtain complexed cobalt salt solution, then excessive 10%-30% is added in the ammonium oxalate solution obtained in step 4 to the complexed cobalt salt solution; The invention removes impurities from defective ammonium oxalate and then produces high-quality ammonium oxalate, and the ammonium oxalate produced by the conversion of carbonate can be used as a material for the preparation of ammonium oxalate, reducing the loss of ammonium oxalate, recycling and reducing costs, which is worthy of great efforts promote.

Description

technical field [0001] The invention relates to the technical field of cobalt salt processing, in particular to a process for treating and purifying defective cobalt oxalate. Background technique [0002] Cobalt, element symbol Co, silver-white ferromagnetic metal, the surface is silver-white with light pink, it is located in the 4th period and group VIII of the periodic table, atomic number 27, atomic weight 58.9332, close-packed hexagonal crystal, common valence is +2 , +3. Cobalt is a shiny steel-gray metal, relatively hard and brittle, ferromagnetic, and its magnetism disappears when heated to 1150°C. The valences of cobalt are +2 and +3. It does not interact with water at room temperature and is stable in humid air. When heated to above 300°C in air, it is oxidized to form CoO, and burns to Co3O4 when it is white hot. The fine metal cobalt powder produced by hydrogen reduction method can spontaneously ignite in the air to form cobalt oxide. Cobalt is an important r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C55/07C07C51/41C07C51/42
Inventor 熊以俊陈斌罗旋
Owner 赣州逸豪优美科实业有限公司
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