Ultrafine-granularity ilmenite beneficiation method
A beneficiation method and ilmenite technology, applied in the direction of chemical instruments and methods, wet separation, solid separation, etc., can solve the problems of low recovery rate of strong magnetic field, inability to achieve high-efficiency utilization of titanium resources, etc., to improve ore grade, The effect of reducing the content and improving the recovery rate
Active Publication Date: 2013-04-03
PANGANG GRP MINING
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Problems solved by technology
However, using the above-mentioned technological process to recover -0.045mm particle size ilmenite, it was found that the recovery rate of the two-stage strong magnetic field was low, which could not achieve the purpose of efficiently utilizing titanium resources in this area.
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[0015] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that, in this specification, the percentages involved refer to percentages by weight, which will not be described in detail below.
[0016] figure 1 It is the flow chart of the beneficiation process of ilmenite in the prior art. figure 2 It is the flow chart of the beneficiation process of ilmenite of the present invention.
[0017] Such as figure 1 As shown, the original beneficiation process is to remove iron from the raw ore to obtain iron-removing tailings and secondary iron concentrate. Among them, the iron-removed tailings are subjected to two-stage strong magnetic separation and two-stage iron removal, followed by flotation to obtain the final titanium concentrate. use figure 1 The process flow shown is for ultra-fine ilmenite (TiO 2 Grade is only about 5.63%) when recycling, due to the two-stage strong magnetic production in the...
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Abstract
The invention provides an ultrafine-granularity ilmenite beneficiation method. The beneficiation method includes the following steps: after iron is removed from raw ores, fine tailings without iron and secondary iron concentrate are obtained; the tailings without iron undergo a first stage of high-intensity magnetic separation, so that strong magnetic concentrate and final tailings are obtained; a centrifuge is adopted to separate the strong magnetic concentrate with gravity, so that gravity concentrate and final tailings are obtained; the gravity concentrate undergoes a second stage of high-intensity magnetic separation, and after obtained strong magnetic concentrate undergoes flotation, the final ilmenite concentrate is obtained. The beneficiation method is applicable to ultrafine-granularity ilmenite, the granularity of which is not greater than 0.045mm, and the beneficiation method can increase the ilmenite concentrate recovery rate while guaranteeing the quality of ilmenite concentrate.
Description
technical field [0001] The invention relates to a beneficiation method, in particular to a beneficiation method of ultra-fine particle size (-0.045mm) ilmenite. Background technique [0002] Panxi vanadium-titanium-magnetite resource reserves are very rich, and it is the second largest iron ore area in China after Anben area. The reserves of vanadium-titanium-magnetite resources in the Panzhihua area amounted to 9.6 billion, of which the reserves of titanium resources (calculated as titanium dioxide) were 618 million, accounting for 95% of the country and 35% of the world, ranking first in the world. At present, the ilmenite with a size of +0.045mm is mainly recycled in this area, while the ilmenite with a size of -0.045mm is recycled by the current beneficiation process, and the utilization rate is low. With the improvement of beneficiation process, the grinding fineness becomes finer, resulting in a large amount of ultra-fine ilmenite that cannot be recovered, resulting i...
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IPC IPC(8): B03B7/00
Inventor 王勇李利民王洪彬祝勇涛陈碧王建平吴雪红
Owner PANGANG GRP MINING