A method for improving the recovery rate of rutile flotation

A flotation recovery rate and flotation technology, applied in the field of rutile beneficiation, can solve the problems of high production cost and large consumption of collectors, and achieve the effects of improving the recovery rate, solving the high cost of chemicals, and reducing the cost of beneficiation agents.

Inactive Publication Date: 2018-06-01
CENT SOUTH UNIV
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Problems solved by technology

[0009] Aiming at the problem of high production cost due to the large consumption of collectors in the existing rutile flotation process, the purpose of the present invention is to provide a method that can not only ensure a higher flotation recovery rate and grade of rutile, but also reduce the flotation rate. The method of reagent usage cost in the process provides reliable technical support for the popularization and application of the technique of reducing the amount of expensive reagent in the rutile flotation process

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  • A method for improving the recovery rate of rutile flotation

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Embodiment 1

[0032]A rutile mine in Hubei is used as the rutile raw ore, and the rutile content in the rutile raw ore is 2.24%. The main titanium-containing minerals in this ore are rutile, a small amount of ilmenite and sphene, other metal oxide minerals include a small amount of limonite, hematite and magnetite, and only trace pyrite is the sulfide; the gangue minerals are mainly Hornblende, followed by garnet, sodium mica, epidote, feldspar, chlorite, clay and quartz etc. The embedded particle size of rutile has a wide distribution, and the particle size is extremely uneven, but it is mainly concentrated in 0.01-0.32mm. The intercalation relationship between rutile and gangue minerals is relatively complicated. Most rutiles are distributed in gangue minerals such as hornblende, garnet, and muscovite in the form of disseminated unequal grains and disseminated fine grains. The grain size of these rutiles is extremely uneven. , belongs to the primary refractory rutile mine in my country. ...

Embodiment 2

[0034] A certain rutile mine in Shaanxi is used as the raw rutile ore, and the rutile content in the raw rutile ore is 2.49%. The main titanium-containing minerals in this ore are rutile, a small amount of titanite, ilmenite and anatase, and other metal oxide minerals include a small amount of limonite, hematite and magnetite, and only trace pyrite is the sulfide; The stone minerals are mainly hornblende, followed by biotite, plagioclase, calcite, dolomite and quartz. The distribution of rutile mosaic particle size is wide, and the particle size is extremely uneven, but it is mainly concentrated in 0.05-0.22mm. The intercalation relationship between rutile and gangue minerals is relatively complicated. Most rutiles are distributed in gangue minerals such as hornblende, biotite, and calcite in the form of disseminated unequal grains and disseminated fine grains. The grain size of these rutiles is extremely uneven. It belongs to the refractory rutile mine in my country. The raw...

Embodiment 3

[0036] A rutile mine in Hubei is used as the rutile raw ore, and the rutile content in the rutile raw ore is 2.61%. The main titanium-containing minerals in this ore are rutile, a small amount of ilmenite and sphene, other metal oxide minerals include a small amount of limonite, hematite and magnetite, and only trace pyrite is the sulfide; the gangue minerals are mainly Hornblende, followed by garnet, sodium mica, epidote, feldspar, chlorite, clay and quartz etc. The embedded particle size of rutile has a wide distribution, and the particle size is extremely uneven, but it is mainly concentrated in 0.01-0.32mm. The intercalation relationship between rutile and gangue minerals is relatively complicated. Most rutiles are distributed in gangue minerals such as hornblende, garnet, and muscovite in the form of disseminated unequal grains and disseminated fine grains. The grain size of these rutiles is extremely uneven. , belongs to the primary refractory rutile mine in my country. ...

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Abstract

The invention discloses a method for improving rate of recovery of floatation of rutile. The method comprises the following steps: after pulverizing and grinding primary minerals of the rutile, pulping to obtain pulp; carrying out gravity concentration on the pulp to remove slime; and carrying out flotation separation by taking H2SO4 as a pH regulator, ethylenediamine tetraacetic acid as an ion complexing agent, Al2(SO4)3 as a rutile activating agent, sodium fluosilicate as a gangue mineral inhibitor, and styryl phosphonic acid and n-octanol as compound collectors to obtain rough concentrate of the rutile. By the method, relatively high rate of recovery of flotation and grade of the rutile can be guaranteed, chemical costs in a flotation process can be reduced, and the problem of low rate of recovery of flotation of low-grade primary rutile is solved.

Description

technical field [0001] The invention relates to a method for improving the flotation recovery rate of fine-grained embedded rutile, and belongs to the technical field of rutile beneficiation. Background technique [0002] With the rapid development of my country's economy and the significant improvement of people's living standards, the domestic titanium dioxide market is undergoing tremendous changes. In recent years, the production and demand of titanium dioxide in my country have been growing rapidly, but the grade of domestic titanium dioxide is low, and the output of anatase titanium dioxide is absolutely dominant. In 2011, the industry-wide output of titanium dioxide was 1.812 million tons, of which 1.324 million tons were rutile. From 2007 to 2011, the products of my country's titanium dioxide industry continued to optimize. In 2011, the proportion of rutile products was as high as 73.1%, an increase of nearly 33% compared with 2007. However, compared with other maj...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/00B03B1/00B03D1/018B03D101/02B03D101/06
CPCB03B1/00B03D1/00B03D2201/02B03D2201/06
Inventor 王军肖巍曹攀淘浪黄晓淘李开运张二星吴弼朝覃文庆姜涛胡岳华邱冠周
Owner CENT SOUTH UNIV
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