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Method for microbial vanadium leaching and selective vanadium enrichment

A microbial leaching and selective technology, applied in the direction of improving process efficiency, can solve the problems of low efficiency, many impurities, and high energy consumption of vanadium extraction process

Inactive Publication Date: 2018-11-30
CHINA UNIV OF GEOSCIENCES (BEIJING)
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the problems of high energy consumption, heavy pollution, many impurities and low efficiency of the prior art vanadium extraction process. Method, the method uses acidophilic Thiobacillus ferrooxidans to efficiently leach vanadium from clinker and stone coal, and then synthesize a new type of ion exchange resin material to selectively enrich vanadium

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  • Method for microbial vanadium leaching and selective vanadium enrichment
  • Method for microbial vanadium leaching and selective vanadium enrichment
  • Method for microbial vanadium leaching and selective vanadium enrichment

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Embodiment Construction

[0048] The present invention will be further described in detail through the drawings and examples below, but it is not intended to limit the protection scope of the present invention.

[0049] The embodiment of the present invention provides a method for leaching vanadium and selectively enriching vanadium, comprising the following steps:

[0050] In step S10, minerals containing vanadium are taken and processed to obtain mineral particles larger than 200 meshes.

[0051] Specifically, the minerals selected in the present invention mainly include stone coal, clinker, steel slag, and vanadium-titanium magnetite. Among them, clinker is the product of steel slag after roasting. The sources of minerals are as follows: stone coal is obtained from the Huitong mining area in Huaihua City, Hunan Province; clinker and steel slag are obtained from Xichang Steel and Vanadium Co., Ltd. of Xichang Pangang Group, Sichuan Province; vanadium-titanium magnetite is obtained from Panzhihua Cit...

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Abstract

The invention discloses a method for microbial vanadium leaching and selective vanadium enrichment, which is summarized in an example, and the method comprises the following steps: taking and processing vanadium containing minerals to obtain mineral particles larger than 200-mesh; preparing a required culture medium, and cultivating and domesticating microorganisms in the culture medium; adding the mineral particles to the treated culture medium to leach vanadium from the mineral particles; preparing modified macroporous and strongly alkalic styrene anion exchange resin D201, and absorbing vanadium from a leachate by using the modified D201; and dissolving absorbed vanadium using an eluent. The invention adopts microbial leaching with a good leaching effect and little pollution, and adoptsmodified resin for selective adsorption with high adsorption rate and few impurities, which is beneficial to the subsequent process.

Description

technical field [0001] The invention relates to the technical fields of energy saving, environmental protection and metallurgy, in particular to a method for microbial leaching of vanadium and selective enrichment of vanadium. Background technique [0002] At present, my country's vanadium resources include vanadium-titanium magnetite, vanadium-containing stone coal, clay vanadium ore and other minerals. The raw materials of many domestic vanadium products are mainly vanadium-titanium magnetite steel slag and vanadium-containing stone coal left over from steelmaking. In order to recover vanadium metal, The vanadium extraction process currently used is: leaching method, the raw material is roasted and then leached with acid, and then precipitated with ammonium chloride. However, there are many disadvantages in this vanadium extraction process: high energy consumption, high pollution, many impurities, and low efficiency, which have been questioned more and more. [0003] For t...

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Application Information

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IPC IPC(8): C22B3/18C22B3/42C22B34/22
CPCC22B3/18C22B3/42C22B34/22Y02P10/20
Inventor 张宝刚杨盟王松刘子奇刘辉
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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