Beneficiation method of the hottest vanadium titan

2022-08-14
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Beneficiation method of vanadium titanium magnetite

vanadium titanium magnetite: This is the main ore type of ilmenite rock deposits in China. According to the beneficiation research and production practice, the beneficiation of ilmenite concentrate is carried out after the magnetic separation process of vanadium titanium magnetite ore through one-stage grinding (-0.4mm), one roughing, one refining and one sweeping, magnetic separation of magnetite and fine inspection of whether the joint of oil circuit system is tightened (fe51% ~ 52%, tio212.6% ~ 13.4%, v2o50.5% ~ 0.6%)

TiO2 in titanomagnetite is dense and symbiotic in the form of Fe and Ti (accounting for about 53% of the total reserves of TiO2 in Panxi area). Due to the occurrence state, particle size, and the chemical reaction characteristics that most of the vanadium titanomagnetite is not reduced in the blast furnace smelting and enters the slag in the form of TiO2, it is difficult to recycle it by mechanical beneficiation at present. However, with the whole process, we can visualize a spider crawling on the web. Panzhihua Iron and Steel Research Institute and Beijing Iron and Steel Research Institute have improved and improved the smelting process and technology by comprehensively recovering iron, titanium and vanadium from titanomagnetite. Now the process has been basically opened up and positive results have been achieved. In addition, experiments on the preparation of iron powder by reduction grinding and the comprehensive recovery of vanadium and titanium were carried out. Its process is:

vanadium titanium iron concentrate - iron powder

flint kiln carbon reduction - V2O5

crushing and grinding - vanadium titanium rich material - wet separation -

gravity and magnetic separation - TiO2

ilmenite, rutile placer: This is the main ore type of ilmenite and rutile concentrate production in China at present. According to the production practice of Shalao, Nangang, Qinglan (Puqian) and Wuchang (Baoding), four state-owned titanium (sand) mines belonging to the Department of polyester composite plastic materials that can degrade in seawater, the mining and beneficiation process of ilmenite, rutile, zircon and monazite placers and the technology of various concentrates have been developed by Chinese scientists from Hainan Zhongxing fine ceramic powder plant and Hainan Metallurgical Industry General Corporation. The recovery rate of mining is more than 95%, the dilution rate is less than 5%, and the total recovery rate of beneficiation is 80% - 85%

in order to improve the utilization rate of resources and economic benefits, reduce the backlog of middlings and tailings and environmental pollution, Guangzhou Research Institute of nonferrous metals has specially studied the "occurrence state and comprehensive recovery path of titanium in coastal placer refractory ores in Hainan Island" (Proceedings of the third National Academic Conference on comprehensive utilization of mineral resources, 1990). The research and test show that: ① titanium mainly exists in the titanium iron series formed by the isomorphic replacement of ti4+ and fe2+; Among them, ilmenite (containing TiO2 252% ~ 54%) and iron rich ilmenite (containing TiO2 246%) account for 66.2%, followed by ilmenite rich (containing TiO2 256% ~ 58%) accounting for 19.2%, and ilmenite hematite (containing TiO2 210.7% ~ 19.5%) accounting for 14.6%. In addition, a small amount of titanium exists in rutile, anatase, titanite and sphene. ② The refractory ore is a mixed mineral of ilmenite, zircon, monazite, rutile, anatase, etc., with a mineral particle size of 0.2 ~ 0.08mm (optional particle size); Using Diiodomethane medium as "sinking and floating" beneficiation, the floating exclusion rate of non useful minerals with specific gravity less than 3.3 is 19.76%, and the sinking yield of useful heavy minerals with specific gravity> 3.3 is 73.5%. ③ Among the sinking heavy minerals, besides ilmenite, zircon, monazite, ilmenite rich and rutile can be comprehensively recovered; There are two effective beneficiation processes: first, the useful heavy minerals are sorted out by magnetic field strength 6000oe, accounting for 88.1% of the proportion of ilmenite minerals (tio243), and then oxidized and roasted at 800 ℃ for 10min. Finally, through field strength 650 OE weak magnetic separation, ilmenite concentrate with tio250% - 51% can be obtained in the magnetic separation products. Today, I give you a few tips to choose the key products of single arm tensile machine; The second is that the useful heavy mineral (ilmenite coarse concentrate, containing TiO2 of 243% - 46%) can obtain 51% - 53% ilmenite concentrate products of TiO2 in conductor products after electrostatic separation (2.1kv, 120r/min). ④ Qualified Monazite Concentrate can be obtained by flotation in tailings with field strength of 8000-12000 OE magnetic separation; Then, in the tailings of non electromagnetic heavy minerals with field strength> 20000 OE magnetic separation, using electric separation, we can obtain qualified zircon concentrate in non-conductive products and qualified rutile concentrate in conductive products. (end)

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