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Treatment purification technology for cobalt oxalate defective products

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

Active Publication Date: 2019-06-21
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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  • Treatment purification technology for cobalt oxalate defective products
  • Treatment purification technology for cobalt oxalate defective products
  • Treatment purification technology for cobalt oxalate defective products

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 purification technology for cobalt oxalate defective products. The treatment purification technology comprises the following steps: step one, adding ammonium carbonate into waste cobalt oxalate to obtain filter residues containing cobalt carbonate and an ammonium oxalate solution; step two, adding hydrochloric acid into the filter residues in the first step, wherein filtrate is a cobalt chloride solution; step three, extracting and purifying the cobalt chloride solution in the second step; step four, concentrating the ammonium oxalate solution obtained in the first step to 50 to 100 g / L; step five, adding ammonia water into the high-quality cobalt chloride solution obtained in the third step according to 5 to 30 mass percent of cobalt to obtain a complexcobalt salt solution; then adding the ammonium oxalate solution obtained in the fourth step into the complex cobalt salt solution according to excessive 10 to 30 percent. According to the treatment purification technology disclosed by the invention, a defective product ammonium oxalate is purified and then high-quality ammonium oxalate is prepared; in addition, ammonium oxalate transformed from carbonate can be used as a material for preparing the ammonium oxalate; the loss of the ammonium oxalate is reduced and the cost is reduced through recycling; the treatment purification technology forthe cobalt oxalate defective products is worthy of vigorous promotion.

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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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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