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A kind of preparation method of iron oxide product

An iron oxide and product technology, applied in the field of non-ferrous smelting, can solve the problems of environmental pollution, waste of resources, occupation of land, etc., and achieve the effect of shortening the purification process and efficient recycling.

Inactive Publication Date: 2018-08-07
甘肃有色冶金职业技术学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Jarsonite slag is industrial waste slag produced in the nickel and cobalt hydrometallurgy process, and the output has exceeded 20,000t / a. Jarsonite slag is accompanied by a certain amount of valuable metals such as nickel and cobalt, causing resource At the same time, the jarosite slag is piled up in the slag yard, which not only occupies the land, but also has the hidden danger of polluting the environment

Method used

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  • A kind of preparation method of iron oxide product
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method of iron oxide product, comprising the following steps:

[0033] A. Jarosite slag leaching: Add jarosite slag and dilute sulfuric acid in a reaction kettle with a mechanical stirring and heating device according to the solid-to-liquid volume ratio of 1:5, react for 0.5h, dilute sulfuric acid [H + ] The concentration is 82g / L, and the reaction temperature is controlled to be 80°C; analyze the Fe content in the slurry liquid, according to the Fe content of the slurry liquid 3+ Add sodium sulfite to 1.1 times the concentration and react for 2 hours; analyze the Cu content in the slurry, according to the Cu content of the slurry 2+ Add iron powder at 1.2 times the concentration and react for 0.5h. After the reaction is completed, the slurry in the kettle is separated from solid to liquid.

[0034] B. Extraction of leaching solution: P 507 After the extraction agent and solvent oil (sulfonated kerosene) are mixed at a ratio of 1:3, NaOH solution with a...

Embodiment 2

[0039] A preparation method of iron oxide product, comprising the following steps:

[0040] A. Jarosite slag leaching: Add jarosite slag and dilute sulfuric acid in a reaction kettle with a mechanical stirring and heating device according to a solid-to-liquid ratio of 1:4, react for 1 hour, dilute sulfuric acid [H + ] The concentration is 85g / L, and the reaction temperature is controlled to be 82°C; analyze the Fe content in the slurry liquid, according to the Fe content of the slurry liquid 3+ 1.0 times the concentration, add sodium sulfite and react for 1.5h; analyze the Cu content in the slurry, according to the Cu content of the slurry 2+ Add iron powder at 1.1 times the concentration, and react for 1 hour. After the reaction is completed, the slurry in the kettle is separated from solid to liquid.

[0041] B. Extraction of leaching solution: P 507 After the extraction agent and solvent oil (sulfonated kerosene) are mixed at a ratio of 1:3, NaOH solution with a mass conc...

Embodiment 3

[0046] A preparation method of iron oxide product, comprising the following steps:

[0047] A. Jarosite slag leaching: add jarosite slag and dilute sulfuric acid in a reaction kettle with a mechanical stirring and heating device according to a solid-to-liquid ratio of 1:5, react for 0.5h, dilute sulfuric acid [H + ] The concentration is 84g / L, and the reaction temperature is controlled to be 84°C; analyze the Fe content in the slurry liquid, according to the Fe content of the slurry liquid 3+ Add sodium sulfite to 1.2 times the concentration and react for 2 hours; analyze the Cu content in the slurry, according to the Cu content of the slurry 2+ Add iron powder at 1.2 times the concentration and react for 0.5h. After the reaction is completed, the slurry in the kettle is separated from solid to liquid.

[0048] B. Extraction of leaching solution: P 507 After the extraction agent and solvent oil (sulfonated kerosene) are mixed at a ratio of 1:3, NaOH solution with a mass con...

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Abstract

The invention relates to the technical fields of non-ferrous smelting wet method and pyrometallurgy, and discloses a preparation method of iron oxide. The jarosite slag is leached with industrial sulfuric acid, and the leachate is extracted and removed by P507. The raffinate satisfies The quality requirements for the production of nickel sulfate products, the impurity content of the stripping solution can meet the quality requirements for the production of iron oxide products, the stripping solution is subjected to oxidation, neutralization, hydrolysis and goethite method to precipitate iron, and the iron precipitate is calcined at high temperature to produce qualified Iron oxide products, the present invention uses jarosite slag as a raw material to prepare iron oxide, so that jarosite slag can be recycled, and a raw material for producing iron oxide has been found, so that jarosite slag can be recycled and broadened Types of raw materials for the production of iron oxide products.

Description

technical field [0001] The invention belongs to the technical field of nonferrous smelting, and relates to a method for producing iron oxide products by using industrial waste slag produced in nickel and cobalt hydrometallurgy processes as raw materials. Background technique [0002] With the development of modern industry, metal raw ore resources are increasingly scarce, and the use of new methods, new technologies, and new processes to make full use of metals in industrial waste residues and develop high value-added functional materials has become the main research on the utilization of industrial waste residues. direction. Jarsonite slag is industrial waste slag produced in the nickel and cobalt hydrometallurgy process, and the output has exceeded 20,000t / a. Jarsonite slag is accompanied by a certain amount of valuable metals such as nickel and cobalt, causing resource At the same time, the jarosite slag is piled up in the slag yard, which not only occupies the land, but...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B7/00C22B23/00C22B3/38C22B3/46
CPCC22B3/46C22B7/006C22B23/043C22B23/0469C22B3/402Y02P10/20
Inventor 刘瑜苏瑞娟谢琴
Owner 甘肃有色冶金职业技术学院
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