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 tail

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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Example Embodiment

[0017] Example 1

[0018] A graphite-type vanadium ore raw ore vanadium grade V 2 O 5 0.52%, the main vanadium-bearing mineral is vanadium-bearing limonite, followed by vanadium-bearing mica, and a small amount of vanadium-bearing kaolin and vanadium-bearing illite. Other main minerals are graphite ore, quartz, pyroxene, hornblende, etc. Enriched V 2 O 5 The beneficiation method is in accordance with figure 1 Shown. All the raw ore is crushed to -2.0mm and sieved with a 1.0mm sieve. 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 a coarse-grained grade. Tailings, -1.0mm particle grade products adopt Φ2mm+Φ1.0mm multi-gradient media box, carry out one roughing and one sweeping, the roughing and sweeping field strengths are 0.9T and 1.0T respectively to obtain the roughing concentrate, Sweeping concentrates and tailings, roughing concentr...

Example Embodiment

[0021] Example 2

[0022] The tailings in a tailing pond are the tailings of graphite-type vanadium ore after graphite flotation, V 2 O 5 The grade is 0.67%. The main vanadium-bearing minerals are vanadium-bearing limonite, vanadium-bearing hematite and vanadium mica. Gangue minerals are mainly quartz, clay, feldspar, pyroxene, garnet, etc. Because this tailing is the tailings after graphite flotation, there is ore grinding during graphite flotation, making the tailings finer than the original ore, and its particle size composition is 100% less than 2.0mm. Tailings follow figure 1 As shown, sieving with a 0.63mm sieve, +0.63mm size product using a Φ3mm+Φ2mm multi-gradient media box, a magnetic separation with a magnetic field strength of 1.0T, to obtain coarse-grained concentrates and coarse-grained tailings,- The 0.63mm particle grade product adopts a Φ2mm+Φ1.0mm multi-gradient media box to carry out a rough selection, a sweep selection and a selection. The rough selection and...

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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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