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Beneficiation method for comprehensively using vanadium-bearing titanomagnetite low-grade lean ore and ore below cut-off grade

A technology of vanadium titanomagnetite and beneficiation method, applied in chemical instruments and methods, wet separation, solid separation, etc., can solve problems such as poor resource utilization effect, improve resource utilization rate, improve mining efficiency, reduce stripping The effect of picking

Active Publication Date: 2011-08-31
SICHUAN LOMON MINING & METALLURGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, some enterprises have selected the mixed ore of internal ore and external ore of vanadium-titanium magnetite in Panxi Baima Mine, and the average grade of TFe in the selected ore is about 25%. Only iron is selected, no titanium is selected, ore is ground and magnetic The grade of TFe in the tailings of iron selection is about 15%, which has a poor effect on resource utilization

Method used

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  • Beneficiation method for comprehensively using vanadium-bearing titanomagnetite low-grade lean ore and ore below cut-off grade
  • Beneficiation method for comprehensively using vanadium-bearing titanomagnetite low-grade lean ore and ore below cut-off grade
  • Beneficiation method for comprehensively using vanadium-bearing titanomagnetite low-grade lean ore and ore below cut-off grade

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1 (applicable to the south where the rainy season is longer and rainfall is more)

[0042] For the mixed ore mined from the surface ore and the surface ore, the three-stage crushing-screening closed-circuit crushing process is adopted, and the particle size is -10mm 100%. For the crushed products with a water content greater than 3%, wet-type drum permanent magnets are used. Weak magnetic roughing and strong magnetic sweeping technology for pre-separation, fully enrich and recover metal minerals in the form of mineral aggregates, mainly titano-magnetite and ilmenite, and obtain a pre-separation with a yield of 68.12% For concentrate, discard the pre-sorting tailings with a yield of 31.88%. For the pre-sorting concentrate, use the grinding-screening and grading closed-circuit process to carry out the I-stage rod grinding, and grind to the particle size of -1mm 100%. For the I-stage Grinding products are subjected to wet permanent magnetic weak magnetic separat...

Embodiment 2

[0043] Embodiment 2 (applicable to the south where the rainy season is longer and rainfall is more)

[0044]For the mixed ore mined from the surface ore and the surface ore, the three-stage crushing-screening closed-circuit crushing process is adopted, and the particle size is -10mm 100%. For the crushed products with a water content greater than 3%, wet-type drum permanent magnets are used. The technology of medium magnetic roughing and strong magnetic sweeping is used for pre-separation to obtain the pre-separated concentrate with a yield of 66.80%, and discard the tailings with a yield of 33.20%; the pre-separated concentrate is ground-screened Classification closed-circuit process carries out stage I coarse grinding and grinding to particle size -1mm100%. Wet permanent magnetic weak magnetic separation is performed on the coarsely ground products of stage I, and wet permanent magnetic medium magnetic separation is carried out on the tailings of weak magnetic separation. Th...

Embodiment 3

[0045] Embodiment 3 (applicable to the north where the perennial drought and little rain in the north)

[0046] For the mixed ore mined from the surface ore and the surface ore, a three-stage crushing-screening closed-circuit crushing process is adopted to crush to a particle size of -10mm 100%, and the water content of the crushed product is less than 3%. Pre-separation is carried out with the technology of conventional weak magnetic roughing and strong magnetic sweeping to obtain the pre-separated concentrate with a yield of 68.12%, and discard the tailings with a yield of 31.88%; the pre-separated concentrate is ground-screened The graded and closed-circuit process is used to carry out coarse grinding and grinding in stage I until the particle size is -1mm 100%. Wet permanent magnetic weak magnetic separation is performed on the coarsely ground products in stage I, and wet permanent magnetic medium magnetic separation is carried out on the tailings of weak magnetic separatio...

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Abstract

The invention discloses a beneficiation method for comprehensively using vanadium-bearing titanomagnetite. The method comprises the following steps of: performing mixed exploiting of ore above cut-off grade and ore below cut-off grade; crushing the mixed ore into ore with the granularity of 10mm completely, performing weak magnetic rough flotation or medium magnetic rough flotation on the crushedproduct to select out mineral aggregates of which the main component is the anadium-bearing titanomagnetite, performing strong magnetic scavenging on rougher tailings to select out the mineral aggregates of which the main component is ilmenite, combining the mineral aggregates into a pre-sorted concentrate, and discarding gangue of which the yield is 31.88 to 33.20 percent; performing I section coarse grinding the concentrate into concentrate with the granularity of 1mm completely, performing weak, medium and strong magnetic separation, discarding coarse gangue, performing II section fine grinding on the obtained coarse mixed concentrate to grind the obtained concentrate into concentrate with the granularity of 0.15mm completely, adding a modifier, a yellow catching agent and a foaming agent into the product of the II section ore grinding to perform flotation for a sulfide ore and obtain high-quality linnaeite; performing weak magnetic separation on titanomagnetite on tailings of the flotation for the sulfide ore to obtain high-quality iron ore concentrate; and performing strong magnetic titanium separation on tailings of iron separation, further gathering the ilmenite to obtain strong magnetic separation concentrate, and adding the modifier, sodium aliphatate and an auxiliary catching agent into the strong magnetic separation concentrate to perform flotation for the ilmenite and obtain high-quality titanium concentrate.

Description

technical field [0001] The invention belongs to the field of comprehensive utilization of mineral resources, in particular to a beneficiation technology method for comprehensive utilization of vanadium-titanium magnetite low-grade lean ore and off-surface ore. Background technique [0002] The Panzhihua-Xichang area in Sichuan is the most important ore-forming belt of vanadium-titanium magnetite in my country, and it is also one of the important producing areas of the same type of deposits in the world. In addition, there are also vanadium-titanium magnetite resources in Chengde, Hebei, Xingning, Guangdong, Yunyang, Xiangyang, Hubei, Hanzhong, Ankang, Shaanxi, Hami, Bachu, Xinjiang, and Daixian County, Shanxi. In November 1976, the relevant national authorities issued industrial indicators for Sichuan Panxi Vanadium-Titanium Magnetite: ores with a TFe grade ≥ 45% are high-grade ores, ores with a TFe grade ≥ 30% are medium-grade ores, and TFe grades are 30% ore. The ore betw...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03B1/00
Inventor 傅文章范先国洪秉信陈俊王文超刘道义陈达陶章明蒋晓辉何丰
Owner SICHUAN LOMON MINING & METALLURGY
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