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Classified ore dressing method of calcareous and siliceous mixed type stone coal vanadium ore

A mineral processing method and a mixed technology, applied in flotation, solid separation, grain processing, etc., can solve the problems of low recovery rate of vanadium mineral processing, large dosage of chemicals, waste of resources, etc., to reduce the amount of mineral dressing chemicals, reduce the amount, reduce The effect of alkali consumption

Inactive Publication Date: 2015-10-07
HUNAN RES INST FOR NONFERROUS METALS +1
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for beneficiation of calcareous and siliceous mixed vein type stone coal vanadium ore, which solves the problem of large dosage and high cost of beneficiation agents for calcareous and siliceous mixed vein type stone coal vanadium ore in the prior art. Problems such as low recovery rate and resource waste belong to the field of calcareous and siliceous mixed vein type stone coal vanadium deposits

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  • Classified ore dressing method of calcareous and siliceous mixed type stone coal vanadium ore

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Embodiment Construction

[0025] The present invention will be further described below in combination with embodiments.

[0026]This embodiment provides a classification ore dressing method for calcareous and siliceous mixed vein type stone coal vanadium ore. The original ore is a vanadium mine in Hubei Province. It is a low-grade stone coal vanadium ore with mixed veins of calcareous and siliceous. The recyclable valuable components in the ore are mainly vanadium pentoxide. The content of vanadium pentoxide in the ore is 0.83%, the production cost of direct smelting of raw ore to extract vanadium is extremely high, and the recovery rate is only about 30%, making it difficult for enterprises to make profits. The invention aims at the process of using ore dressing to enrich vanadium pentoxide to provide high-quality vanadium concentrate for smelting and extracting vanadium.

[0027] The mineral composition of the raw ore is: quartz minerals account for 25.66%, mica (including vanadium-containing minera...

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Abstract

The invention discloses a classified ore dressing method of calcareous and siliceous mixed type stone coal vanadium ore. Main minerals of raw ore consist of 20-28wt% of quartz mineral, 10-15wt% of mica mineral, 5-10wt% of tourmaline-amphibole mineral and 35-40wt% of carbonate mineral; the grade of vanadium in the raw ore is 0.6-1wt%. The classified ore dressing method comprises the following steps: a) grinding crushed raw ore in a ball mill, and classifying ore materials according to classification size of 0.037-0.075mm to obtain coarse and fine products; b) regrinding the coarse products, then recovering vanadium by adopting a forward flotation process, and removing carbonate in the fine products by adopting a reverse flotation process to obtain vanadium concentrate and calcium concentrate. The method can be used for treating calcareous and siliceous mixed vein type stone coal vanadium ore with the vanadium grade of 0.6-1wt%, the concentration ratio of the obtained vanadium concentrate V2O5 reaches more than 2.5 and the vanadium recovery rate can reach more than 85 percent.

Description

technical field [0001] The invention relates to a graded ore dressing method for calcareous and siliceous mixed type stone coal vanadium ore, belonging to the field of mixed vein type stone coal vanadium ore beneficiation. Background technique [0002] Vanadium, a rare metal element with a high melting point, is an important strategic material. It is widely used in the fields of metallurgy, national defense, chemical industry, machinery, electronics, automobiles, railways, ships and light industry due to its excellent alloy properties and catalytic effect. V 2 o 5 It is the most important vanadium oxide, which is widely used in steel, sulfuric acid industry, petrochemical industry, aircraft engine manufacturing, aerospace cabin skeleton, missile, warship hydrofoil and introducer, etc. Therefore, vanadium has always been an important strategic reserve resource in western countries. [0003] Stone coal vanadium ore is one of the important raw materials for the production of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C23/14B03D1/00
CPCB02C23/14B03D1/00
Inventor 魏党生叶从新张丽敏韦华祖骆任郭玉武蒋素芳江锋池汝安何东升欧阳华朱永筠
Owner HUNAN RES INST FOR NONFERROUS METALS
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