Novel leaching separation method for nickel-cobalt alloy material containing molybdenum and vanadium

The technology of a nickel-cobalt alloy and a new method is applied in the field of leaching and separation of valuable metals in nickel-cobalt alloy materials, which can solve the problems of low comprehensive recovery rate, low recovery rate of molybdenum and vanadium, complicated process operation, etc., and achieve overall process coherence. , The effect of strong operability and process cost reduction

Inactive Publication Date: 2019-03-26
MEISHAN SHUNYING POWER BATTERY MATERIALS CO LTD
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AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problems that the comprehensive recovery rate of molybdenum, vanadium, cobalt, nickel and other valuable metals in molybdenum-vanadium-containing cobalt-nickel alloy materials is not high, the process operation is complicated, and the process cost is high. A new method for leaching and separating vanadium-nickel-cobalt alloy materials
According to the method of the present invention, through the optimal control of each reaction parameter in the slurrying reaction of the ingredients and the pressure leaching and iron removal treatment, the iron in the alloy material is preferentially converted into a stable goethite form for fixed precipitation, effectively Solve the problem that the oxidized trivalent iron easily reacts with molybdenum and vanadium in the solution in the process of oxidation and iron removal in the existing technology, so that the molybdenum and vanadium are substituted into the iron slag and the recovery rate of molybdenum and vanadium is low, so that the molybdenum and vanadium in the alloy material Valuable metals such as , cobalt and nickel can fully enter the filtrate for subsequent separation and recycling, realizing the full recycling of valuable metal resources in alloy materials

Method used

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  • Novel leaching separation method for nickel-cobalt alloy material containing molybdenum and vanadium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] like figure 1 As shown, a number of other wastes containing molybdenum, vanadium, cobalt and nickel discharged from a chemical plant were taken, and the cobalt-nickel alloy material containing molybdenum and vanadium was obtained by mixing and reducing smelting in an electric furnace. The content of Co in the alloy material was detected to be 14.68%, and the content of Ni The content is 26.45%, the content of Mo is 19.56%, the content of Fe is 18.31%, and the content of V is 13.6%; The above-mentioned alloy material is carried out as follows:

[0051] (1) Grinding: the alloy material is ground and sieved to below 100 mesh, and then the alloy powder after grinding and sieving is processed as follows:

[0052] (2) Batching slurry reaction: Add water and sulfuric acid to the above alloy powder according to the liquid-solid ratio of 8:1 and the acid-material ratio of 1.8:1, mix them, and react at 70°C for 2 hours to obtain a slurry reaction After liquid.

[0053] (3) Pres...

Embodiment 2

[0074] like figure 1As shown, a number of waste catalysts containing molybdenum, vanadium, cobalt and nickel discharged from a chemical plant were taken, and the cobalt-nickel alloy material containing molybdenum and vanadium was obtained by mixing and reducing smelting in an electric furnace. After testing, the content of Co in the alloy material was 13.27%, and the content of Ni Content is 24.65%, the content of Mo is 21.86%, the content of Fe is 21.35%, the content of V is 12.86%; The above-mentioned alloy material is carried out as follows:

[0075] (1) Grinding: the alloy material is ground and sieved to below 100 mesh, and then the alloy powder after grinding and sieving is processed as follows:

[0076] (2) Batching slurry reaction: add water and sulfuric acid to the above alloy powder according to the liquid-solid ratio of 12:1 and the acid-material ratio of 2:1, mix them, and react at 70°C for 2 hours to obtain a slurry reaction After liquid.

[0077] (3) Pressurize...

Embodiment 3

[0098] like figure 1 As shown, some waste alloy materials containing molybdenum, vanadium, cobalt and nickel discharged from a chemical plant were taken, and the cobalt-nickel alloy materials containing molybdenum and vanadium were obtained by mixing and reducing smelting in an electric furnace. The content of Co in the alloy material was detected to be 14.67%, Ni The content of Mo is 23.65%, the content of Mo is 22.46%, the content of Fe is 25.51%, and the content of V is 13.12%; The above-mentioned alloy material is carried out as follows:

[0099] (1) Grinding: the alloy material is ground and sieved to below 100 mesh, and then the alloy powder after grinding and sieving is processed as follows:

[0100] (2) Batching slurry reaction: add water and sulfuric acid to the above alloy powder according to the liquid-solid ratio of 15:1 and the acid-material ratio of 2.5:1, mix them, and react at 70°C for 2 hours to obtain a slurry reaction After liquid.

[0101] (3) Pressurized...

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Abstract

The invention discloses a novel leaching separation method for a nickel-cobalt alloy material containing molybdenum and vanadium. The method comprises the following steps: S1, preparing raw materials;S2, carrying out a slurry reaction on the raw materials; S3, carrying out pressurized leaching to discharge iron; and S4, recovering valuable metals. According to the method, reaction parameters arecontrolled preferably by carrying out the slurry reaction on the raw materials and carrying out pressurized leaching to discharge iron, and iron in the alloy material is optimally converted into a stable goethite form to be precipitated fixedly, so that the problem that the molybdenum and vanadium recovery rate is low as molybdenum and vanadium are introduced into iron slag as oxidized trivalent iron is easily reacted with molybdenum and vanadium in a solution in an oxidizing iron removal process in an existing process is solved effectively, and the valuable metals molybdenum, vanadium, cobaltand nickel in the alloy material can fully enter a filtrate to be separated and recycled subsequently, and therefore, the valuable metal resources in the alloy material are recycled fully. The wholeprocess is high in coherent operability, the process cost is reduced obviously, and the method is efficient and environment-friendly and high in industrial practical value.

Description

technical field [0001] The invention relates to the field of comprehensive utilization of mineral resources, in particular to the comprehensive recycling of waste materials containing cobalt, nickel, molybdenum, and vanadium alloys in cobalt, nickel, molybdenum, and vanadium hydrometallurgy industries, and in particular to a nickel-cobalt alloy containing molybdenum and vanadium A new method for the leaching and separation of valuable metals in raw materials. Background technique [0002] Nickel-cobalt alloy is a ferromagnetic strategic metal, which is widely used in the production of stainless steel, high-temperature alloys, magnetic materials and catalysts, etc., and its application fields cover petrochemical, aerospace, military, electronics and other fields. With the development of modern industry, the amount of alloy waste such as spent catalysts and nickel-cobalt superalloys used in the above-mentioned industries is also increasing day by day. The above-mentioned wast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/00C22B34/22C22B34/34C22B23/00
CPCC22B7/007C22B7/009C22B23/043C22B34/225C22B34/345Y02P10/20
Inventor 但勇赵林赵澎陈雪风
Owner MEISHAN SHUNYING POWER BATTERY MATERIALS CO LTD
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