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Raw material pretreatment process for extracting vanadium by using vanadine

A technology of pretreatment and vanadium soil, applied in the field of vanadium extraction from vanadium soil, can solve the problems of pollution, easy agglomeration of auxiliary materials, waste of raw materials, etc., and achieve the effects of reducing use cost, avoiding dust flying, and improving utilization rate

Inactive Publication Date: 2021-10-08
郧西九丰钒业投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a raw material pretreatment process for extracting vanadium with vanadium. The technical problem to be solved by the present invention is: in the traditional raw material pretreatment process, firstly, a rotary kiln is required to carry out When drying raw materials, dust is flying, raw materials are wasted, and pollution is serious. At the same time, it also affects the quality of products after vanadium extraction. In addition, a large amount of auxiliary materials need to be added in the process of batching and mixing, and auxiliary materials are prone to agglomeration, which reduces the utilization efficiency of auxiliary materials. , the problem of increasing the cost of using

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A raw material pretreatment process for extracting vanadium with vanadium, comprising the following steps:

[0022] S1. Vanadium crushing: smash the vanadium to a size of ≤200mm with an iron plate to form coarse-grained vanadium slag, and then use an electric disk to pick out the large pieces of iron, and then use a grab bucket to send the coarse-grained vanadium slag into the jaw crusher The machine carries out coarse crushing and fine crushing successively, and after magnetic separation and iron removal, the qualified vanadium slag obtained has a particle size requirement of <25mm, and is classified and stacked according to YB / T008-2006.

[0023] S2. Vanadium slag ball mill: Send the vanadium slag with a qualified particle size obtained in S1 into a Ф2.2×6.5m ball mill for fine grinding through a grab bucket. The output particle size should be 110 mesh (0.125mm) ≥ 80%.

[0024] S3, iron removal treatment: the material obtained in the vanadium slag ball milling process...

Embodiment 2

[0033] A raw material pretreatment process for extracting vanadium with vanadium, comprising the following steps:

[0034] S1. Vanadium crushing: smash the vanadium to a size of ≤200mm with an iron plate to form coarse-grained vanadium slag, and then use an electric disk to pick out the large pieces of iron, and then use a grab bucket to send the coarse-grained vanadium slag into the jaw crusher The machine carries out coarse crushing and fine crushing successively, and after magnetic separation and iron removal, the qualified vanadium slag obtained has a particle size requirement of <25mm, and is classified and stacked according to YB / T008-2006.

[0035] S2. Vanadium slag ball mill: Send the vanadium slag with a qualified particle size obtained in S1 into a Ф2.2×6.5m ball mill for fine grinding through a grab bucket. The output particle size should be 100 mesh (0.125mm) ≥ 80%.

[0036] S3, iron removal treatment: the material obtained in the vanadium slag ball milling process...

Embodiment 3

[0045] A raw material pretreatment process for extracting vanadium with vanadium, comprising the following steps:

[0046] S1. Vanadium crushing: smash the vanadium to a size of ≤200mm with an iron plate to form coarse-grained vanadium slag, and then use an electric disk to pick out the large pieces of iron, and then use a grab bucket to send the coarse-grained vanadium slag into the jaw crusher The machine carries out coarse crushing and fine crushing successively, and after magnetic separation and iron removal, the qualified vanadium slag obtained has a particle size requirement of <25mm, and is classified and stacked according to YB / T008-2006.

[0047] S2. Vanadium slag ball mill: Send the qualified vanadium slag obtained in S1 into a Ф2.2×6.5m ball mill for fine grinding through a grab bucket. The output particle size should be 120 mesh (0.125mm) ≥ 80%.

[0048] S3, iron removal treatment: the material obtained in the vanadium slag ball milling process is subjected to iron...

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Abstract

The invention discloses a raw material pretreatment process for extracting vanadium by using vanadine, and particularly relates to the technical field of vanadium extraction by using vanadine. The raw material pretreatment process comprises the steps of vanadine crushing, vanadium slag ball milling, iron removal treatment, auxiliary material addition, microcomputer batching and mixing and high-pressure balling. The vanadium is crushed, the vanadium slag is subjected to ball milling, the vanadium slag meets the qualified particle size requirement, in order to avoid dust flying, 4%-5% of water is added into a mixed material, materials can be wetted, the contact area between dressing and the vanadium slag is increased, and roasting is facilitated. According to the scheme, compared with a traditional pretreatment process, the problems of dust flying, raw material waste and serious pollution during vanadium slag processing are effectively solved, the auxiliary material is sodium salt, the materials and the sodium salt in a specified proportion are added with water and sodium carbonate for uniform mixing, waste liquid obtained after spraying of an absorption tower plays an energy-saving and environment-friendly role, so that the sodium salt is not prone to caking, the utilization rate of the sodium salt is increased, and the production cost is reduced, and applicability is achieved.

Description

technical field [0001] The invention relates to the technical field of extracting vanadium from vanadium, more specifically, the invention relates to a raw material pretreatment process for extracting vanadium by using vanadium. Background technique [0002] Vanadium is a silver-gray metal with a melting point of 1890±10°C. It belongs to the list of rare metals with a high melting point. Its boiling point is 3380°C. Pure vanadium is hard, non-magnetic and ductile, but if it contains a small amount of impurities, especially Nitrogen, oxygen and hydrogen, etc., can significantly reduce its plasticity. The process used for raw material pretreatment is usually rotary kiln drying, dry ball milling and iron removal, adding sodium salt and mixing ingredients, and then sending the prepared materials into The rotary kiln is used for sodium roasting. In the traditional raw material pretreatment process, the rotary kiln is required for drying the raw material. When the raw material is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/00C22B1/02C22B1/24C22B34/22
CPCC22B1/00C22B1/2406C22B1/02C22B34/22
Inventor 谢光国吴太忠
Owner 郧西九丰钒业投资有限公司
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