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Method for recycling ultra-fine fraction titanic iron ore and production method for titanium concentrate

A recovery method and technology for ilmenite, which are applied in the production of ilmenite concentrate and the recovery of ultra-fine-grained ilmenite, can solve the problem of wasting natural resources, affecting the total recovery rate of ilmenite, and selecting the titanium grade of tailings. Advanced problems, to achieve the effect of eliminating adverse effects

Active Publication Date: 2014-12-10
PANGANG GRP MINING
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

Taking a titanium beneficiation plant in Panzhihua area as an example, the amount of ultra-fine ore pulp removed by the plant through the above-mentioned desliming operation is about 1.2 million tons per year. The TiO in this part of ultra-fine ore pulp 2 The grade is about 8.85%. If this part of ultra-fine ore pulp is discarded as tailings, the grade of titanium in the titanium tailings of the plant will be high, which will affect the total recovery rate of ilmenite and waste natural resources.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] This embodiment is used to illustrate the recovery method of the ultra-fine ilmenite provided by the present invention.

[0060] Concentrate the ultra-fine ilmenite slurry with a concentration of 7.56% to obtain a concentrated slurry with a concentration of 20% and overflow water, wherein the overflow water enters the circulating water system for reuse. Use a suspension vibration cone concentrator to perform a suspension vibration separation on the concentrated pulp to obtain a suspension vibration concentrate, a suspension vibration middle ore and a suspension vibration tailings; then use a suspension vibration cone concentrator to obtain a suspension vibration concentration The ore undergoes secondary suspension vibration beneficiation to obtain secondary suspension vibration concentrate, secondary suspension vibration medium ore and secondary suspension vibration tailings; collect primary suspension vibration concentrate and secondary suspension vibration concentrate ...

Embodiment 2

[0086] This example is used to illustrate the production method of titanium concentrate provided by the present invention.

[0087] The vanadium-titanium magnetite mined in the Panzhihua area is processed by iron separation to obtain crude iron concentrate and iron separation tailings, and the ore particles obtained by grinding the iron separation tailings are analyzed by a Malvern laser particle size analyzer After testing, it was found that the content of fine-grained ilmenite in the obtained ore grains accounted for 75% by weight of the total solids, and the content of ore slime accounted for 21% by weight of the total solids. Mix the ore particles with water to form a slurry with a concentration of 20%. Use a suspension vibration cone concentrator to conduct a suspension vibration separation of the ore slurry to obtain a suspension vibration concentrate, a suspension vibration medium ore and a suspension vibration tailings; The secondary suspension vibration beneficiation...

Embodiment 3

[0093] This example is used to illustrate the production method of titanium concentrate provided by the present invention.

[0094] The fine-grained ilmenite content obtained by the method in Example 2 accounts for 75% by weight of the total solids, and the ilmenite and water whose slime content accounts for 21% by weight of the total solids are mixed to form a concentration of After 50% of the pulp is deslimed, deslimed ilmenite and superfine ilmenite pulp are obtained. The TiO of the deslimed ilmenite obtained by using the strong magnetic beneficiation method 2 After the grade is increased to 22%, the crude titanium concentrate is obtained. It was detected by a Malvern laser particle size analyzer that the content of the slime in the obtained crude titanium concentrate was 3.2% by weight. TiO in crude titanium concentrate 2 The grade is 22%. Wherein, in the superfine-grained ilmenite slurry obtained, the ultra-fine-grained ilmenite particle content reaches 90% by weight ...

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Abstract

The invention discloses a method for recycling ultra-fine fraction titanic iron ore and a production method for titanium concentrate. The method for recycling the ultra-fine fraction titanic iron ore includes the steps that suspension vibration ore dressing is sequentially carried out twice after ore pulp of the ultra-fine fraction titanic iron ore is concentrated to obtain suspension vibration concentrate, and titanium flotation operations are carried out on the suspension vibration concentrate, so that the titanium concentrate is obtained. The production method for the titanium concentrate includes the steps that suspension vibration ore dressing is sequentially carried out twice after the titanic iron ore is made into the ore pulp to obtain the suspension vibration concentrate, and the titanium floatation operations are carried out on the suspension vibration concentrate to obtain the titanium concentrate; or slime in the ore pulp of the titanic iron ore is removed, so that the titanic iron ore with the slime removed and ultra-fine fraction titanic iron ore pulp are obtained, and the titanium floatation operations are carried out on coarse titanium concentrate and the suspension vibration concentrate, so that the titanium concentrate is obtained. By means of the method for recycling the ultra-fine fraction titanic iron ore and the production method for the titanium concentrate, the titanium concentrate with a higher TiO2 grade and a higher TiO2 yield can be obtained.

Description

technical field [0001] The invention relates to the technical field of mineral separation, in particular to a method for recovering ultrafine ilmenite and a method for producing titanium concentrate. Background technique [0002] The flotation beneficiation method (flotation) is a widely used beneficiation method at present. When the flotation method is used for beneficiation, especially for the flotation of the target minerals with finer particle size, in order to basically achieve the dissociation of the target minerals, it is necessary to Minerals are first ground and then flotation beneficiation. In the process of ore grinding, secondary slime will be produced (sludge refers to the ore particles with a particle size of less than 10 μm), and at the same time, the minerals embedded with finer particle size also have primary slime. In addition, more importantly, since many useful mineral resources are often symbiotic, such as vanadium-titanium magnetite, which contains two...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B5/04
Inventor 吴雪红王洪彬汪传松张国华王建平
Owner PANGANG GRP MINING
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