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A kind of method that utilizes vanadium-containing leaching solution to prepare vanadium product

A technology of leaching solution and products, which is applied in the field of metallurgy, can solve the problems of high cost and complicated process, and achieve the effect of low cost, simple process and short overall process time

Active Publication Date: 2019-05-17
CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for preparing vanadium products from vanadium-containing leaching solution, which solves the problems of complicated procedures and high cost in the current method for preparing high-purity vanadium pentoxide

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A, the vanadium-containing leachate ([V]=30g / L) was left to stand for 5d, and the supernatant was taken;

[0037] B. Take 700mL supernatant liquid, slowly add it into 350mL hydrochloric acid solution with a concentration of 2mol / L under stirring, after the addition is completed, heat the solution to boiling, keep boiling for 15min, and suction filter the solution after cooling to obtain a filter cake;

[0038] C. The filter cake was soaked and washed with deionized water for 5 minutes, then suction filtered, soaked and washed with absolute ethanol for 5 minutes, then dried with suction at 60° C. to constant weight to obtain red vanadium, and the vanadium yield was 72%.

[0039] Submitted for inspection, TV: 47.29%, Na: 2.35%, Si: 0.146%, K: 0.049%, Cr: 0.073% in the prepared red vanadium.

Embodiment 2

[0041] A, the vanadium-containing leachate ([V]=40g / L) was left to stand for 5d, and the supernatant was taken;

[0042] B. Take 700mL of the supernatant, slowly add it into 300mL of hydrochloric acid solution with a concentration of 3mol / L under stirring, after the addition is complete, heat the solution to boiling, keep boiling for 10min, and suction filter the solution after cooling to obtain a filter cake;

[0043] C. The filter cake was soaked and washed with deionized water for 5 minutes, then suction filtered, soaked and washed with absolute ethanol for 5 minutes, then dried with suction at 60° C. to constant weight to obtain red vanadium, and the vanadium yield was 76%.

[0044] Submitted for inspection, TV: 46.29%, Na: 2.25%, Si: 0.140%, K: 0.042%, Cr: 0.067% in the prepared red vanadium.

Embodiment 3

[0046] A, the vanadium-containing leaching solution ([V]=50g / L) was left to stand for 3d, and the supernatant was taken;

[0047] B. Take 800mL supernatant liquid, slowly add it into 500mL hydrochloric acid solution with a concentration of 5mol / L under stirring, after the addition is completed, heat the solution to boiling, keep boiling for 15min, and suction filter the solution after cooling to obtain a filter cake;

[0048]C. The filter cake was soaked and washed with deionized water for 5 minutes, then suction filtered, soaked and washed with absolute ethanol for 5 minutes, then dried with suction at 60° C. to constant weight to obtain red vanadium, and the vanadium yield was 70%.

[0049] Submitted for inspection, TV: 46.25%, Na: 1.60%, Si: 0.151%, K: 0.051%, Cr: 0.066% in the prepared red vanadium.

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Abstract

The invention discloses a method for preparing a vanadium product by using vanadium-containing leaching liquid, and belongs to the field of metallurgy. The invention aims to provide the method for preparing the vanadium product by using the vanadium-containing leaching liquid. The method for preparing the vanadium product by using the vanadium-containing leaching liquid comprises the following steps: A, standing the vanadium-containing leaching liquid and taking supernatant liquid; B, adding the supernatant liquid into hydrochloric acid, stirring while adding, heating the solution after addingto boil, maintaining boiling for 10 to 20 minutes, and performing suction filtration after the solution is cooled to obtain a filter cake; and C, washing and drying the filter cake to obtain vanadiumpentoxide. By the method, high-concentration silicon in the vanadium-containing leaching liquid is removed through standing and the high-purity vanadium pentoxide is produced by adding the hydrochloric acid, so that the problems that the existing method for preparing high-purity vanadium pentoxide is complex in process, high in time consumption and high in cost are solved.

Description

technical field [0001] The invention belongs to the field of metallurgy, and in particular relates to a method for preparing a vanadium product by utilizing a vanadium-containing leaching solution. Background technique [0002] Vanadium is known as "the monosodium glutamate of modern industry" and is an important additive in modern industry. Due to the excellent properties of vanadium, it is widely used in the fields of steel industry, aerospace industry, chemical industry and light textile industry. [0003] Vanadium is rich in resources and widely distributed in the world, but there is no rich ore that can be mined alone, and it always coexists with other minerals at low grade. There are many kinds of raw materials for vanadium extraction. Vanadium-titanium magnetite is the main raw material for vanadium extraction. 88% of the world's annual output of vanadium is obtained from vanadium-titanium magnetite. In addition, there are carbonaceous shale, waste Catalysts, petrol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B3/22C22B34/22C22B3/44
CPCC22B3/22C22B3/44C22B34/22Y02P10/20
Inventor 陈婷彭穗李道玉刘波
Owner CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD
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