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Selective flocculation flotation method for extremely fine ilmenite

A technology of ilmenite and fine particles, which is applied in flotation, solid separation, etc., can solve the problems of unrepresentativeness, increase the process of removing fine minerals, and low content of fine minerals, and achieve the goal of sorting Effect

Inactive Publication Date: 2015-06-03
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the method invented by CN103586137A, the fine-grained minerals in the raw ore are removed in advance, and the raw ore particle size is -200 mesh, accounting for 60%, and the yield of -28 μm only accounts for 12.00%. 2) The content of fine-grained minerals is low, which is not representative

Method used

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  • Selective flocculation flotation method for extremely fine ilmenite
  • Selective flocculation flotation method for extremely fine ilmenite

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Experimental program
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Effect test

Embodiment

[0027] The raw ore fine-grained ilmenite is the overflow of the secondary inclined plate of the Panzhihua Titanium Concentrator, in which the -28μm particle size content is 70%, and the TiO 2 The grade is 8.89%, and the titanium pyroxene content is about 40%. Wherein, the number of times of flotation column sweeping is two, and the number of times of flotation column selection is three times.

[0028] The reagent system and operating conditions of flotation are shown in Table 1.

[0029]

[0030]Flotation: According to the dosage and operating conditions listed in Table 1, the fine-grained ilmenite in Panzhihua Titanium Separation Plant was flotation, and TiO 2 Titanium concentrate with a grade of 46.62% and a recovery rate of 60.17%.

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Abstract

The invention discloses a selective flocculation flotation method for extremely fine ilmenite. The selective flocculation flotation method comprises the following steps of stirring the extremely fine ilmenite with a dispersing agent, an activating agent, collector and an auxiliary collector into slurry, and then, performing rougher flotation by adopting a flotation column to obtain rougher concentrate and rougher tailings; adding the collector to the obtained rougher tailings and stirring, and performing secondary scavenging by adopting the flotation column to obtain secondary scavenging concentrate and secondary scavenging tailings, wherein the secondary scavenging tailings are final tailings; adding the dispersing agent and the activating agent to the obtained rougher concentrate and stirring; performing triple concentration by adopting the flotation column to obtain triple concentration concentrate and triple concentration tailings, wherein the triple concentration concentrate is final concentrate. The current situation that the extremely fine ilmenite is directly thrown away as slurry can be solved by the selective flocculation flotation method disclosed by the invention; moreover, the selective flocculation flotation method is high in flotation efficiency and high in stability, and has good indexes.

Description

technical field [0001] The invention relates to ilmenite flotation technology, in particular to a flotation method of microfine ilmenite. Background technique [0002] In mineral sorting, the ore is generally ground fine enough to achieve the dissociation of useful mineral monomers, and a large amount of secondary slime is also produced. Whether it is primary ore slime or secondary ore slime, they all have considerable metal content and recovery value. However, due to the small particle size of the slime, conventional flotation is difficult to achieve effective recovery of fine-grained minerals, resulting in metal loss and waste of resources. [0003] For the flotation of ilmenite, the content of fine-grained and fine-grained minerals in the flotation raw ore is relatively high. At present, the effective recovery of +28 μm ilmenite has been basically realized, but the effective recovery of -28 μm ilmenite has not been realized so far. The main reasons are: 1) The particle...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/08
Inventor 曹亦俊范桂侠马子龙张海军
Owner CHINA UNIV OF MINING & TECH
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