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Enrichment and purification method of leaching solution for vanadium-containing substances

A purification method and solution technology, applied in the field of enrichment and purification of leaching solution, can solve the problems of low utilization rate of return water and large water consumption, and achieve the effects of reducing waste water generation, reducing loss and high enrichment concentration

Inactive Publication Date: 2020-05-15
崔明亚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The leaching solution enrichment and purification method for vanadium-containing substances in the prior art has problems such as large water consumption and low return water utilization; solved problem

Method used

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Experimental program
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Embodiment Construction

[0014] The specific embodiments of the present invention are as follows: a method for enriching and purifying a leaching solution for vanadium-containing substances, comprising the following manufacturing steps:

[0015] (1) Before the vanadium-containing solution passes through the evaporator and the stock solution to be evaporated enters the evaporating heat exchanger, the tube and tube heat exchanger is used to preheat the stock solution; because the vanadium-containing solution passes the stock solution to be evaporated through the evaporator before entering The temperature before the evaporative heat exchanger is low, in order to make full use of the heat energy in the system to evaporate.

[0016] (2) According to the characteristics of the flow rate and boiling point of the stock solution, a vacuum pump can be used to reduce the boiling point of the stock solution and reduce the amount of steam used to evaporate the stock solution;

[0017] (3) The concentration of vana...

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Abstract

The invention relates to an enrichment and purification method of a leaching solution for vanadium-containing substances. The enrichment and purification method is characterized by comprising the stepthat before a vanadium-containing solution enables a stock solution to be evaporated to enter an evaporation heat exchanger through an evaporator, the stock solution to be evaporated is pre-heated byusing a shell-and-tube heat exchanger, and due to the fact that the temperature of the vanadium-containing solution is low before the vanadium-containing solution enables the stock solution to be evaporated to enter the evaporation heat exchanger through the evaporator, heat energy in a system is fully utilized for evaporation. According to the enrichment and purification method, the evaporator is adopted to concentrate the vanadium-containing mother solution, the concentration of the vanadium-containing mother solution is increased to reach the vanadium precipitation standard through concentration, so that the loss is reduced, water is recycled in a distilled water mode, the enrichment concentration is high, and waste water is greatly reduced. The adopted enrichment and purification method is environment-friendly and efficient, and is suitable for popularization and application in society.

Description

technical field [0001] The invention relates to the field of extraction methods, in particular to a method for enriching and purifying a leaching solution for vanadium-containing substances. Background technique [0002] At present, vanadium-containing solutions are mostly enriched by ion exchange and superimposed leaching or extraction. The leaching solution enrichment and purification method for vanadium-containing substances in the prior art has problems such as large water consumption and low return water utilization; solved problem. Contents of the invention [0003] In view of this, the present invention provides a method for enriching and purifying a leaching solution for vanadium-containing substances, comprising the following manufacturing steps: [0004] (1) Before the vanadium-containing solution passes through the evaporator and the stock solution to be evaporated enters the evaporating heat exchanger, the tube and tube heat exchanger is used to preheat the s...

Claims

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Application Information

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IPC IPC(8): C22B3/22C22B3/44C22B34/22
CPCC22B3/22C22B3/44C22B34/22Y02P10/20
Inventor 崔明亚崔朋
Owner 崔明亚