Method for vanadium extraction through leaching and extracting

A technology of leaching and leaching liquid, which is applied in the field of leaching and extracting vanadium, can solve the problems of pollution, toxic gas, high energy consumption, etc., and achieve the effects of mild conditions, improved leaching efficiency, and good oxidation effect

Inactive Publication Date: 2018-01-23
ZHONGFANLIAN TECH DEV CO LTD
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  • Abstract
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Problems solved by technology

[0010] The invention provides a method for leaching and extracting vanadium, which is used to solve the problems of poisonous gas, pollution and high energy consumption in the current prior art

Method used

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Embodiment Construction

[0029] The technical solution of the present invention will be clearly and completely described below, obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] The invention discloses a method for extracting vanadium by leaching, which comprises the following steps:

[0031] Grinding the vanadium-containing material to 40-50 mesh to form vanadium ore powder;

[0032] The vanadium ore powder is introduced into the primary leaching section, and in the primary leaching section, the vanadium ore powder and the secondary leaching solution are reacted for 3-4 hours under the action of ozone bubbling, and the reaction temperature is 85-90 °C; after filtering to obtain a primary leachate and a primary filter cake...

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Abstract

The invention relates to the technical field of wet metallurgy, in particular to a method for vanadium extraction through leaching and extracting. A leaching work section and an extracting work section are included, and a vanadium-containing product is obtained through evaporation concentration after three-stage reverse flow leaching and extracting. The method for vanadium extraction through leaching and extracting has the beneficial effects that high-temperature ore burning is not needed, poisonous gas such as hydrogen chloride and chlorine is not generated, a high-temperature section is omitted, the condition is mild, and energy is saved; water is recycled, and waste water is avoided; ozone oxidation is used, the oxidation effect is good, and oxidation products do not generate pollution;and an inductive agent is used, and the leaching efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of hydrometallurgy, in particular to a method for extracting vanadium by leaching. Background technique [0002] Vanadium is widely used in iron and steel, non-ferrous metals, chemicals, alloys, superconducting materials, automobile industry and other fields, and is an important strategic material. [0003] The distribution of vanadium in nature is very dispersed, and it usually exists as V(Ⅲ) and V(Ⅳ), among which V(Ⅲ) accounts for the majority, and trivalent vanadium can enter the silicate mineral lattice in the same phase form. At the same time, Tetravalent vanadium can also exist in the silicon-oxygen tetrahedral structure in the homogeneous form. This kind of ore is difficult to leach. To leach trivalent or tetravalent vanadium, the crystal structure must first be destroyed to release the vanadium existing in the crystal structure. [0004] At present, vanadium extraction process technology can be sum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B34/22C22B3/04C22B3/44C22B7/04
CPCY02P10/20
Inventor 许小弟田兴江
Owner ZHONGFANLIAN TECH DEV CO LTD
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