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Preparation method for preparing high-purity vanadium from acidic high-manganese vanadium-containing leached solution

A technology of leaching liquid and high manganese, applied in the field of metallurgical production technology, can solve the problems of long process flow, high cost, low removal rate, etc., and achieve the effect of high purity, short process route and low production cost

Active Publication Date: 2018-01-05
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

[0003] The vanadium leaching solution prepared by the acidic vanadium extraction process contains a relatively high content of manganese. The conventional manganese removal methods include: adsorption treatment (research on the effect of iron and manganese removal by different filter materials, Chen Zhengqing, etc., Environmental Protection Science, Volume 31, June 2005), this method has a good manganese removal effect, but it is not suitable for systems with higher manganese content, and the cost is higher; generate precipitation treatment (research on the preparation of manganese tetraoxide by manganese sulfate in ammoniacal medium , Zou Xing, Zhu Hongmin, China Manganese Industry, Volume 27, No. 4, November 2009), although this method can remove various concentrations of manganese knots including high concentrations, the removal rate is not high, so it is used to prepare high The removal of manganese in the pure vanadium process cannot produce products that meet the requirements of vanadium batteries; the extraction method removes manganese to prepare vanadium products (a process study on the extraction of high-purity vanadium pentoxide from vanadium-containing acid leaching solution, Tang Hongjian 1 ,tension 2 , Sun Zhaohui 1 etc., Steel, Vanadium and Titanium, Volume 38, No. 1) This method has a long process flow and high cost, and is not suitable for industrial production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024]Take 200mL of acidic vanadium leaching solution with a vanadium content of 27g / L and a manganese content of 30g / L, and add ammonia water at a rate of 5 drops / sec at a speed of 30 rpm / sec to make the pH of the system 10, and react for 10 minutes Finally, add 13mL of 30% hydrogen peroxide at a rate of 2 drops / second, heat up to 80°C and react for 3 hours after the dropwise addition, cool to room temperature, filter, and rinse twice; the volume of the precipitate added is 1 times of distilled water, at a rotating speed of 10 rev / s, add sulfuric acid with a molar ratio of 1:1.2 to vanadium, and dilute 3 times according to the volume of concentrated sulfuric acid, add at a speed of 2 drops / sec, and filter after completion; the filtrate At a speed of 6 rpm, add sulfuric acid diluted 1 times to adjust the pH of the system to 0, raise the temperature to 80°C, keep the temperature for 40 minutes under the same speed, and filter after cooling; At a speed of 15 / s, add sulfuric acid...

Embodiment 2

[0026] Take 200mL of acidic vanadium leaching solution with a vanadium content of 30g / L and a manganese content of 25g / L, and add ammonia water at a rate of 4 drops / sec at a speed of 20 rpm / sec to make the pH of the system 10.5, and react for 7 minutes Finally, add 6mL of 50% hydrogen peroxide at a rate of 2 drops / second, heat up to 90°C and react for 2 hours after the dropwise addition, cool to room temperature, filter, and rinse twice; the volume of the precipitate added is 1 times of distilled water, at a rotating speed of 10 rev / s, add sulfuric acid with a molar ratio of 1:1.1 to vanadium, and dilute 4 times according to the volume of concentrated sulfuric acid, add at a rate of 3 drops / sec, and filter after completion; the filtrate At a speed of 10 rev / s, add sulfuric acid diluted 1 times to adjust the pH of the system to 1, raise the temperature to 90°C, keep the temperature for 30 minutes under the same speed, and filter after cooling; At a speed of 10 / s, add sulfuric a...

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Abstract

The invention discloses a preparation method, in particular discloses a preparation method for preparing high-purity vanadium by using an acidic high-manganese vanadium-containing leaching solution, and belongs to the technical field of metallurgical production technology. The invention provides a method for preparing high-purity vanadium by using an acidic high-manganese vanadium-containing leaching solution with low production cost and good preparation effect. The preparation method first removes impurity manganese under strong alkaline conditions, then precipitates and washes the vanadium precipitates under strong acidic conditions, and finally calcines the vanadium precipitates to obtain the high-purity vanadium.

Description

technical field [0001] The invention relates to a preparation method, in particular to a preparation method for preparing high-purity vanadium by using an acidic high-manganese vanadium-containing leaching solution, and belongs to the technical field of metallurgical production technology. Background technique [0002] Vanadium is an important strategic material. Vanadium and its alloys are widely used in new technology fields such as metallurgy, petrochemical industry, national defense industry and superconductor. At present, there are two main types of resources for extracting vanadium in industry: the first type is vanadium-titanium magnetite; the second type is vanadium-containing carbonaceous shale, commonly known as stone coal and coal gangue. The main mineral composition of vanadium-titanium magnetite is not complicated, but it is accompanied by many valuable metals such as manganese, chromium, cobalt, nickel, copper, sulfur, scandium, selenium, sulfur, gallium and ur...

Claims

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Application Information

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IPC IPC(8): C22B3/44C22B34/22
Inventor 李道玉彭穗陈婷杨小琴
Owner CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD
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