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

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0041] Example 1 (applicable to the south with a long rainy season and more rainfall)

[0042] For the mined mixed ore of the surface ore and the surface ore, the three-stage crushing-screening closed-circuit crushing process is used to crush to a particle size of -10mm 100%; for the crushed product with a water content greater than 3%, a wet cylinder permanent magnet is used Weak magnetic roughing and strong magnetic scanning technology are used for pre-separation, fully enriching and recovering metal minerals mainly composed of titanomagnetite and ilmenite, which are mineral aggregates, and obtaining a pre-separation rate of 68.12%. Concentrate, discard the pre-separation tailings with a yield of 31.88%, and use the closed-circuit process of grinding-screening and grading for the pre-separation concentrate to carry out the I-section rod milling to the particle size of -1mm 100%. Grinding products are subjected to wet permanent magnetic weak magnetic separation, wet permanent ma...

Example Embodiment

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

[0044] For the mined mixed ore of surface ore and surface ore, the three-stage crushing-screening closed-circuit crushing process is used to crush to a particle size of -10mm 100%. For crushed products with a water content of more than 3%, a wet cylinder permanent magnet is used The process technology of medium magnetic roughing and strong magnetic sweeping is used for pre-separation to obtain a pre-separated concentrate with a yield of 66.80%, and discard the tailings with a yield of 33.20%; the pre-separated concentrate adopts grinding-screening The grading closed-circuit process carries out I stage coarse grinding and grinding to a particle size of -1mm100%. The products of stage I coarse grinding are subjected to wet permanent magnetic weak magnetic separation, and the weak magnetic separation tailings are subjected to wet permanent magnetic medium magnetic separation. The tai...

Example Embodiment

[0045] Example 3 (applicable to the north where there is year-round drought and less rain)

[0046] For the mined mixed ore of surface ore and off-surface ore, the 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 2 O 6 0.683%, TiO 2 9.33% high-quality iron ore concentrate. Then, the iron-dressing tailings are subjected to strong magnetic separation of titanium, and the strong magnetic separation tailings with a relatively strong magnetic separation operation yield of 44.50% are discarded and sent to the tailing pond to obtain the strong magnetic separation concentrate, and then the strong magnetic separation concentrate is added Flotation of ilmenite with regulator, fatty acid sodium and auxiliary collector, the yield of mixed ore is 12.17%, grade TiO 2 High-grade titanium concentrate with 48.41% and TFe32.35%, and flotation titanium tailings are sent to the taili...

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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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