Method for leaching vanadium by reconstructing stone coal vanadium ore crystal lattice

A technology of stone coal vanadium and ore crystal, which is applied in the direction of improving process efficiency, can solve the problem that the leaching rate needs to be further improved, and achieves the effect of solving the problem of difficult leaching, reducing carbon emissions and high leaching rate.

Active Publication Date: 2022-04-01
浙江鑫旺钒业控股有限公司
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Problems solved by technology

[0006] The invention provides a method for leaching vanadium by reconstructing the crystal lattice of stone coal vanadium ore, which solves the problem that the leaching rate of vanadium produced by vanadium ore needs to be further improved

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  • Method for leaching vanadium by reconstructing stone coal vanadium ore crystal lattice
  • Method for leaching vanadium by reconstructing stone coal vanadium ore crystal lattice
  • Method for leaching vanadium by reconstructing stone coal vanadium ore crystal lattice

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[0045] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0046] Please refer to figure 1 , figure 2 , image 3 , Figure 4 with Figure 5 ,in, figure 1 The method flow chart of the method for the method for leaching vanadium by the crystal lattice reconstruction of stone coal vanadium ore provided by the present invention; figure 2 The operation flow chart of the method for the method for leaching vanadium by the crystal lattice reconstruction of stone coal vanadium ore provided by the present invention; image 3 A three-dimensional diagram of the thermally sealed barrel used in the method for leaching vanadium from stone coal vanadium ore crystal lattice reconstruction provided by the present invention; Figure 4 for image 3 The sectional view of the whole shown; Figure 5 for Figure 4 The enlarged schematic diagram of part A is shown.

[0047] A method for leaching vanadium by lattice reconstr...

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Abstract

The invention provides a method for leaching vanadium by reconstructing stone coal vanadium ore crystal lattices. The method for reconstructing stone coal vanadium ore crystal lattices to leach vanadium comprises the following steps that S1, stone coal vanadium ore is crushed; s2, calcium fluoride is added for ore grinding and powder preparation; s3, adding water and stirring in cooperation with concentrated sulfuric acid after powder preparation; s4, heat preservation lattice reconstruction; s5, stirring and leaching; and S6, carrying out solid-liquid separation. According to the method for leaching vanadium through lattice reconstruction of stone coal vanadium ore, vanadium in the stone coal vanadium ore is leached through the heating effect of concentrated sulfuric acid and water, coal is not used as energy power, carbon emission is reduced, calcium fluoride is added to serve as a leaching aid, the problem that vanadium is difficult to leach in a similar form is effectively solved, and the leaching rate can reach 92.01%.

Description

technical field [0001] The invention relates to the field of nonferrous metallurgy, in particular to a method for leaching vanadium by reconstructing the crystal lattice of stone coal vanadium ore. Background technique [0002] With the continuous development and progress of the society, the demand for the metallurgical industry continues to increase. Along with the demand for production and processing, the demand for vanadium ore resources gradually increases. After the vanadium ore is produced, it is necessary to separate vanadium from the inside. Used in industrial production. [0003] The traditional methods of leaching vanadium from stone coal vanadium ore mainly focus on sodium roasting, calcium roasting, direct roasting-leaching-ion exchange and other methods. Although these methods are mature, they consume a lot of energy and cause great environmental pollution. And the leaching rate is low, the recovery rate of V2O5 is about 50%, and the resource waste is serious. ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B34/22C22B3/08C22B3/22
CPCY02P10/20
Inventor 欧阳南巧廖挺欧阳彬彬陈小娟姜德强李求猛杨本春
Owner 浙江鑫旺钒业控股有限公司
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