Method for recycling vanadium resources

A technology for resource recovery and vanadium trichloride, applied in the field of vanadium resource recovery and utilization, can solve the problems of pollution, long process and high energy consumption, and achieve the effects of avoiding hardening, improving recovery rate and realizing recovery and utilization.

Pending Publication Date: 2021-12-03
云南国钛金属股份有限公司
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Problems solved by technology

[0004] Aiming at the problems of long process, high energy consumption and serious pollution in the prior art, the present invention provides a method for recycling vanadium resources, the purpose of which is to: retain the vanadium resources in titanium tetrachloride, realize the recycling of vanadium, simplify Recycling process, reducing energy consumption and pollution

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  • Method for recycling vanadium resources

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Embodiment 1

[0026] figure 1 It is a schematic process flow diagram of an embodiment of the present invention. The embodiment of the present invention is used to reclaim the vanadium element in titanium tetrachloride. The recovery process mainly includes: refining of titanium tetrachloride, reduction of vanadium oxytrichloride in titanium tetrachloride, The adjustment of vanadium content in titanium tetrachloride, the preparation of vanadium-containing sponge titanium, etc., when using the above process, include the following steps: first, do not add vanadium removal agent in the primary kettle, so as to prepare vanadium-containing refined tetrachloride Titanium, then add excess activated carbon to vanadium-containing refined titanium tetrachloride, VOCl 3 All reduced to VCl 3 According to the vanadium-containing sponge titanium requirement of 10% vanadium content, the vanadium content in titanium tetrachloride is increased to 0.75% by distillation, and this solution is added to the reduc...

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Abstract

The invention discloses a method for recycling vanadium resources, and belongs to the technical field of metallurgy. The problems of long flow, high energy consumption and serious pollution in the traditional technology are solved. The method comprises the following steps that A, in the refining process of crude titanium tetrachloride, refined titanium tetrachloride is obtained without adding a vanadium removal agent; B, a reducing agent is added into the vanadium-containing refined titanium tetrachloride in the step A, so that vanadium oxytrichloride in the titanium tetrachloride is reduced into vanadium trichloride; C, the vanadium-containing solution obtained in the step B is subjected to sedimentation and solid-liquid separation; and D, the vanadium-containing solution obtained after solid-liquid separation in the step C is distilled, the concentration of titanium tetrachloride in the solution is adjusted according to production requirements, finally, a finished product is obtained, vanadium recycling is achieved, the recycling process is simplified, and energy consumption and pollution are reduced.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a method for recycling vanadium resources. Background technique [0002] In the refining process of titanium tetrachloride, the relatively mature vanadium removal processes include aluminum powder vanadium removal, steel wire vanadium removal, hydrogen sulfide vanadium removal, and mineral oil vanadium removal, etc. After the crude titanium tetrachloride is added to the distillation pot and heated to the boiling point , after adding the vanadium removing agent in the distillation kettle, the vanadium oxychloride is reduced to vanadium oxychloride, and the vanadium element in the titanium tetrachloride is removed through the distillation tower through the different boiling points of the two. Therefore, a large amount of vanadium elements are enriched in the still bottom of the still, and become vanadium slag rich in vanadium resources. At present, vanadium extracti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B34/12C22B34/22C01G23/02C01G31/04
CPCC22B34/1222C22B34/1295C22B34/22C01G23/022C01G31/04Y02P10/20
Inventor 张美杰和奔流刘峰张军丽杨倩张建林张燕平赵冠杰杨德王丽艳陈建立刘红星李建军祝永红
Owner 云南国钛金属股份有限公司
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