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A flocculation flotation method for comprehensive recovery of fine-grained molybdenum from iron tailings

A technology of micro-grain and iron tailings, applied in the direction of selective deposition, solid separation, etc., can solve the problems of low concentration of overflow slurry from iron dressing tailings, unsatisfactory recovery index of target minerals, etc., and achieve optimal flotation index, Improve the effect of flotation and increase the concentration of flotation

Active Publication Date: 2022-07-29
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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  • A flocculation flotation method for comprehensive recovery of fine-grained molybdenum from iron tailings
  • A flocculation flotation method for comprehensive recovery of fine-grained molybdenum from iron tailings
  • A flocculation flotation method for comprehensive recovery of fine-grained molybdenum from iron tailings

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Embodiment 1

[0026] The present embodiment provides a flocculation flotation method for comprehensively recovering fine-grained molybdenum from iron tailings, and the specific process is:

[0027] S1. Settlement operation: add the iron dressing tailings slurry with a mass concentration of 20% to the thickener, add the amount of polymer acrylamide to 25g / t, and after the thickener settles, introduce the underflow into the flotation machine for flocculation and flotation roughing operation;

[0028] S2, flocculation and flotation roughing operation: add the settled underflow of the thickener to the flotation machine, add 300g / t of polyaluminum chloride, 1200g / t of water glass, and 750g / t of zinc sulfate + sodium sulfite respectively, and the combined collection 36g / t, 24g / t of kerosene and diesel oil, and 20g / t of terpineol oil, respectively, were stirred for 3 minutes, 4 minutes, 4 minutes, 3 minutes, and 2 minutes, respectively, followed by flocculation and flotation roughing, and the obtai...

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Abstract

The invention discloses a flocculation and flotation method for comprehensively recovering fine-grained molybdenum from iron tailings, belonging to the field of beneficiation methods for molybdenum ore. Second, the foam product of the second operation of flocculation and beneficiation is ground, and then four times of beneficiation are carried out to obtain molybdenum concentrate; the second time of flocculation and sweeping is to obtain tailings. The invention optimizes the flotation process, has good operability, can improve the grade of the molybdenum concentrate and the metal recovery rate of the molybdenum concentrate, and will improve the production and operation benefits of the mine, and provide a reference for the development of the same type of tailings. The beneficiation method of the present invention is particularly suitable for treating iron tailings containing fine-grained 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, 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. About 1 / 3 of the total proven reserves are co-associated multi-component iron ore. The main co-associated elements are vanadium, titanium, rare earth, copper, molybdenum, zinc, boron, Tin, niobium, chromium, etc. Constrained by beneficiation technology and level, iron ore is often recovered first, and then the co-associated elements are comprehensively recovered. Due to the finer particle size of iron ...

Claims

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Application Information

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Patent Type & Authority Patents(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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