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Mineral processing method for enriching vanadium pentoxide from graphite vanadium ore

A technology of vanadium pentoxide and beneficiation method, applied in chemical instruments and methods, magnetic separation, solid separation, etc., can solve the problems of low grade, waste of vanadium resources, high cost, and achieve short process, concentrate grade and recovery rate Improved, easy-to-use effects

Inactive Publication Date: 2016-04-13
佛山市汇广机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ore V 2 o 5 The grade is low, and the cost of direct vanadium extraction by wet method is high
Generally, graphite is discarded with the tailings after recovery, resulting in a huge waste of vanadium resources. At present, there are still few studies on this type of vanadium extraction.

Method used

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  • Mineral processing method for enriching vanadium pentoxide from graphite vanadium ore
  • Mineral processing method for enriching vanadium pentoxide from graphite vanadium ore
  • Mineral processing method for enriching vanadium pentoxide from graphite vanadium ore

Examples

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Embodiment 1

[0018] Raw ore vanadium grade V of a graphite-type vanadium mine 2 o 5 0.52%, the main vanadium-containing mineral is vanadium-containing limonite, followed by vanadium-containing mica, and a small amount of vanadium-containing kaolin and vanadium-containing illite. The other main minerals are graphite, quartz, pyroxene, hornblende, etc. Enriched V 2 o 5 The beneficiation method according to figure 1 shown. The raw ore is all crushed to -2.0mm, screened with a 1.0mm sieve, and the +1.0mm particle size adopts a Φ3mm+Φ2mm multi-gradient media box, and a magnetic separation with a magnetic field strength of 1.0T is performed to obtain a coarse-grained concentrate and coarse-grained Tailings, -1.0mm particle size products use Φ2mm+Φ1.0mm multi-gradient media box for one roughing and one sweeping. The roughing and sweeping field strengths are 0.9T and 1.0T respectively, and the roughing concentrate is obtained. The scavenging concentrate and scavenging tailings, roughing conce...

Embodiment 2

[0022] The tailings in a tailings pond are tailings after graphite-type vanadium ore flotation graphite, V 2 o 5 The grade is 0.67%. The main vanadium-containing minerals are vanadium-containing limonite, vanadium-containing hematite and vanadium mica. The gangue minerals are mainly quartz, clay, feldspar, pyroxene, garnet, etc. Because the tailings are the tailings after graphite flotation, there is grinding during graphite flotation, so that the particle size composition of the tailings is finer than that of the original ore, and its particle size composition is 100% less than 2.0mm. tailings according to figure 1 As shown, use a 0.63mm sieve to sieve, +0.63mm grain grade products use Φ3mm+Φ2mm multi-gradient media boxes, and perform a magnetic separation with a magnetic field strength of 1.0T to obtain coarse-grained concentrates and coarse-grained tailings, - The 0.63mm particle size product adopts Φ2mm+Φ1.0mm multi-gradient medium box to conduct one roughing, one sweepi...

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Abstract

A mineral processing method for enriching vanadium pentoxide from graphite vanadium ore comprises the following steps: (1) V2O5 raw ore is completely crushed, the grade size of the crushed V2O5 raw ore is -2.0 mm, and the crushed raw ore is sieved to obtain two products of which the grade sizes are +1.0 to +0.63 mm and -1.0 to -0.63 mm; (2) the product of which the grade size is +1.0 to +0.63 mm is magnetically separated to obtain coarse-grain concentrate and coarse-grain tailings; 3) the product of which the grade size is -1.0 to -0.63 is magnetically separated and roughed to obtain roughed concentrate and roughed tailings; the roughed tailings are magnetically separated and scavenged to obtain scavenged concentrate and scavenged tailings; and the roughed concentrate and the scavenged concentrate are merged to be magnetically separated and finished to obtain finished concentrate and middlings, and the finished concentrate and the coarse-grain concentrate adopt vanadium concentrate as metallurgical vanadium extraction raw materials. The grade of V2O5 enriched according to the mineral processing method is higher than 5%, the enrichment ratio of V2O5 is higher than 4.1, the recovery rate of vanadium is higher than 6.7%, and the mineral processing method is suitable for recovering the graphite vanadium ore. The mineral processing method adopting the technical scheme has the advantages that ore grinding is not required, no drugs are adopted, the grade of the metallurgical vanadium extraction raw materials is effectively improved, the flow is simple, the energy consumption is low, no pollution is caused, the cost is low, and the mineral processing method is economic. The mineral processing method is suitable for enriching vanadium pentoxide of which the grade is 0.30-1.20% from graphite vanadium ore.

Description

technical field [0001] The invention relates to an ore dressing method for enriching vanadium pentoxide from graphite type vanadium ore. Background technique [0002] Vanadium is a rare metal with important strategic significance, mainly used in iron and steel industry, cutting-edge defense technology, chemical industry and light textile industry and other fields. In recent years, with the development of science and technology, vanadium and its compounds have been used more and more in chemical industry, materials, batteries, medicine and other fields, and the market prospect is broad. [0003] According to statistics, the average content of vanadium in the earth's crust is 0.02%, but due to its strong dispersion, it is generally enriched into a separate industrial deposit rarely, and it is often associated with many minerals and rocks in a dispersed state. my country is rich in vanadium resources, mainly including vanadium ore, vanadium-titanium magnetite, steelmaking vana...

Claims

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Application Information

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IPC IPC(8): B03C1/30B03C1/025
CPCB03C1/025B03C1/30
Inventor 张军梁冬云汤玉和刘建国洪秋阳刘超李波
Owner 佛山市汇广机械制造有限公司
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