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Method for sorting titanium middling from iron-separating tailings

A technology for medium titanium ore and tailings, which is applied in the field of separating titanium medium ore from iron beneficiation tailings, can solve the problems of high energy consumption and low metal recovery rate, and achieves high metal recovery rate, simple process flow, and reduced power consumption. The effect of consumption

Inactive Publication Date: 2018-05-29
HEBEI IRON AND STEEL
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Problems solved by technology

[0006] Aiming at the existing problems of high energy consumption and low metal recovery rate, the present invention provides a method for separating titanium medium ore from iron beneficiation tailings

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  • Method for sorting titanium middling from iron-separating tailings

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Embodiment 1

[0043]The various technical indicators in the raw ore are: silicon grade 28.1wt%, sulfur grade 3.8wt%, titanium grade 3.8wt%, fineness 18wt%.

[0044] This implementation provides a kind of method for separating titanium medium ore from iron-selection tailings, comprising the following steps:

[0045] Step 1. Pass the iron dressing tailings through the screen to remove impurities in the slurry, and then concentrate through the inclined plate thickener. The inclined plate grit concentration is 20.5wt%, and the content of ≥ 45 micron minerals in the inclined plate overflow is 4.6wt%.

[0046] Step 2, high-strength magnetic separator throwing tails: the concentrated ore pulp is subjected to strong magnetic separation to obtain magnetic materials and non-magnetic materials. The titanium grade of the magnetic materials is 9.3wt%, and the non-magnetic materials are directly used as magnetic separation tailings emission;

[0047] Step 3, one-stage grinding: the magnetic material is ...

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Abstract

The invention relates to the technical field of ilmenite beneficiation and specifically discloses a method for sorting titanium middling from iron-separating tailings. The method comprises the following steps of: removing impurities of the iron-separating tailings to concentrate, discarding the tailings through strong magnetic separation, grinding ores, and enabling ilmenite to further subject tomonomer separation; sorting iron ore concentrate through weak magnetic separation, performing strong magnetic roughing on rest of ore pulp, performing chute reselection on rough concentrate, grindingreselected concentrate, and performing further monomer separation on ilmenite; sorting secondary iron concentrate through weak magnetic separation, performing strong magnetic concentration on rest ofore pulp, enabling concentrated concentrate to further enter a chute to further subject to concentration, and performing solid-liquid separation on concentrate ore pulp, thereby obtaining titanium middling with grade higher than 38%. The method is simple in process flow, is reasonable in sorting way, and is high in metal recovery rate, and a titanium middling product is high in quality and is stable in grade, so that economic benefits are good.

Description

technical field [0001] The invention relates to the technical field of ilmenite beneficiation, in particular to a method for separating titanium medium ore from iron beneficiation tailings. Background technique [0002] Vanadium-titanium magnetite is the main resource of vanadium and titanium in my country. It is mainly concentrated in Chengde and Panxi. The main useful minerals in the ore are vanadium-containing magnetite and ilmenite, of which magnetite accounts for about 16%. Ilmenite mineral content accounts for about 10%. Since the primary vanadium-titanium magnetite in my country is a polymetallic symbiotic ore, it is necessary to use a variety of beneficiation methods to form a joint process for separation, usually using float-magnetic-gravity, magnetic-heavy-float, magnetic-float-heavy-float, Floating - weak magnetic - strong magnetic - heavy mineral processing process. Among them, the magnetic separation-gravity separation-flotation process route is the current main...

Claims

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Application Information

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IPC IPC(8): B03B7/00
CPCB03B7/00
Inventor 黄山珊常福增王钊军宋晓敏劳晓峰马建
Owner HEBEI IRON AND STEEL
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