Mineral separation method of finely disseminated vanadium contained carbonaceous shale

Abstract

The invention discloses a mineral separation method of finely disseminated vanadium contained carbonaceous shale. The amount of roscoelite with the disseminated grain size less than 0.019mm is larger than 50% of the total amount of roscoelite in the finely disseminated vanadium contained carbonaceous shale. The mineral separation method of the finely disseminated vanadium contained carbonaceous shale includes following steps: (a) performing rough grinding on raw ore after being crushed so as to obtain roughly ground minerals; (b) performing screening classification on the roughly ground minerals, obtaining coarse grain minerals +0.074mm in size and fine grain minerals -0.074mm in size after the screening classification, and combining the coarse grain minerals after being ground twice with the fine grain minerals -0.074mm in size; (c) adding PH (power of hydrogen) regulators into the combined minerals, adjusting PH value to 5-6, adding gangue mineral inhibitor and vanadium mineral collecting agents into ore pulp for 6-12 times, and obtaining concentrated vanadium ore through segmenting rough concentration, vanadium concentration and vanadium scavenging after obtaining flotation pulp by adding flotation reagents once. The mineral separation method of the finely disseminated vanadium contained carbonaceous shale can perform mineral separation on the finely disseminated vanadium contained carbonaceous shale, can effectively improve a mineral separation index, and further can reduce mineral separation cost.

Description

technical field [0001] The invention relates to a beneficiation method of vanadium-containing carbonaceous shale embedded with fine grains, and belongs to the field of vanadium ore beneficiation. Background technique [0002] Vanadium is widely used in metallurgy, aviation, chemical industry and other sectors in the form of ferrovanadium, vanadium compounds and metal vanadium. Vanadium-bearing carbonaceous shale is one of the main types of vanadium resources in my country. The traditional methods for extracting vanadium from vanadium-bearing carbonaceous shale include direct acid (alkali) leaching, sodium roasting, oxidation roasting, and calcification roasting. According to statistics, V in carbonaceous shale containing vanadium 2 o 5 The grade is mainly between 0.5% and 1.2%. Due to the low grade, the above-mentioned processes all involve a large consumption of auxiliary materials such as acid and alkali (according to the mass percentage of the original ore, the consump...

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Problems solved by technology

[0006] The object of the present invention is to provide a kind of beneficiation method of fine-grained embedded vanadium-containing carbonaceous shale, which overcomes the high content of fine mud, poor selection index and mineral processing cost in the process of fine-grained embedded carbonaceous shale ore beneficiation in the prior art. advanced questions

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