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Flocculation flotation method for comprehensively recovering micro-fine particle molybdenum from iron tailings

A technology for fine-grained iron tailings, which is applied in selective sedimentation, solid separation, etc., can solve the problems of unsatisfactory target mineral recovery index and low concentration of overflow slurry of iron beneficiation tailings, and achieves optimized flotation index, Improve the effect of flotation and collection

Active Publication Date: 2022-03-15
ZIJIN MINING GROUP +1
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Problems solved by technology

[0003] Aiming at the recovery of valuable metal components in iron tailings in domestic mines, conventional flotation methods are used for recovery in production, and there is a problem of low concentration of iron tailings overflow slurry (basically 15%-25%), which is far lower than normal The concentration of the flotation pulp leads to unsatisfactory target mineral recovery indicators

Method used

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  • Flocculation flotation method for comprehensively recovering micro-fine particle molybdenum from iron tailings
  • Flocculation flotation method for comprehensively recovering micro-fine particle molybdenum from iron tailings
  • Flocculation flotation method for comprehensively recovering micro-fine particle molybdenum from iron tailings

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Embodiment 1

[0026] This embodiment provides a flocculation flotation method for the comprehensive recovery of fine-grained molybdenum from iron tailings. The specific process is:

[0027] S1. Settling operation: Add the iron dressing tailings slurry with a mass concentration of 20% to the thickener, add the amount of polymerized acrylamide to 25g / t, and after the thickener settles, guide the bottom flow into the flotation machine for flocculation and flotation roughing;

[0028] S2. Flocculation and flotation roughing operation: add the underflow of the settled thickener to the flotation machine, add polyaluminum chloride 300g / t, water glass 1200g / t, zinc sulfate + sodium sulfite respectively 750g / t, combined collection 36g / t, 24g / t of kerosene and diesel oil respectively, 20g / t of terpineol oil, stirring for 3 minutes, 4 minutes, 4 minutes, 3 minutes, 2 minutes respectively, then carry out the flocculation and flotation roughing operation, and the obtained foam product enters the floccula...

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Abstract

The invention discloses a flocculation flotation method for comprehensively recovering micro-fine particle molybdenum from iron tailings, and belongs to the field of molybdenum ore beneficiation methods, and the process comprises the steps of thickener sedimentation, primary roughing, tertiary scavenging, secondary flocculation flotation concentration, secondary flocculation flotation concentration, ore grinding of foam products, and fourth concentration to obtain molybdenum concentrate; and performing secondary flocculation scavenging to obtain tailings. According to the beneficiation method, the flotation technological process is optimized, good operability is achieved, the grade of the molybdenum concentrate can be improved, the metal recovery rate of the molybdenum concentrate can be increased, the production and operation benefits of a mine can be increased, reference is provided for development of tailings of the same type, and the beneficiation method is particularly suitable for treating iron tailings containing micro-fine particle molybdenum.

Description

technical field [0001] The invention relates to the technical field of ore flotation, in particular to a flocculation flotation method for comprehensively recovering fine-grained molybdenum from iron tailings. Background technique [0002] Iron is the earliest discovered, most widely used, and most used metal in the world, and its consumption accounts for about 95% of the total metal consumption. Iron ore is mainly used in the steel industry, which is an important pillar industry for social development. The composition of iron ore is complex and there are many co-associated components. At present, about 1 / 3 of the total proven reserves are co-associated multi-component iron ores. The main co-associated elements are vanadium, titanium, rare earth, copper, molybdenum, zinc, boron, Tin, niobium, chromium, etc. Restricted by beneficiation technology and level, iron ore often recovers iron first, and then comprehensively recovers associated elements. Due to the finer particle ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B9/00B03D3/06
CPCB03B9/00B03D3/06
Inventor 李继福陈晓芳黄雄丛颖纪婉颖周利华余祖芳鲁军田树国陈水波梁治安
Owner ZIJIN MINING GROUP
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