Method for removing titanium minerals in high-sulfur bauxite

A high-sulfur bauxite and titanium mineral technology, applied in solid separation, flotation and other directions, can solve the problems of alumina dissolution and high titanium mineral content in unfavorable bauxite, and achieve good economic and technical indicators, low impurity content, The effect of reducing the content

Inactive Publication Date: 2020-06-05
GUANGZHOU CITY CONSTR COLLEGE
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for removing titanium minerals in high-sulfur bauxite, to solve the problem that the high content of titanium minerals in existing high-sulfur bauxite is unfavorable for the dissolution of alumina in bauxite

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[0033] The present invention will be further described below in conjunction with specific embodiments, so that those skilled in the art can better understand and implement the technical solutions of the present invention.

[0034] A method for removing titanium minerals in high-sulfur bauxite, comprising the following steps:

[0035] Taking the high-sulfur bauxite in a certain place in Guizhou as the test sample, the chemical multi-element analysis in the raw ore is shown in Table 1.

[0036] Table 1 Multi-element analysis of high-sulfur bauxite ore in Guizhou (%)

[0037]

[0038] According to the study of process mineralogy, the mineral composition of the ore samples is more, the main useful minerals are diaspore and a small amount of gibbsite, and the gangue minerals are mainly illite, pyrophyllite, chlorite and kaolinite and a small amount of Quartz, anatase, rutile, hematite, apatite and other minerals. The titanium minerals in the ore are mainly anatase and rutile, ...

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Abstract

The invention provides a method for removing titanium minerals in high-sulfur bauxite, and the method comprises the following steps: crushing and grinding high-sulfur bauxite raw ore to obtain ore pulp, and adding an activating agent, a desulfurization collecting agent and a foaming agent to perform sulfur mineral flotation to allow sulfur minerals to float upwards to obtain desulfurized aluminumconcentrate; and grinding the aluminum concentrate again, adding an adjusting agent and a composite titanium removal collecting agent for titanium mineral flotation to allow the titanium minerals to float upwards and separate to can be removed. According to the method for removing the titanium minerals in the high-sulfur bauxite, an asynchronous reverse flotation method is adopted for treating thehigh-sulfur bauxite, the sulfur minerals and the titanium minerals are removed respectively, the content of the titanium minerals in the bauxite is reduced, harm of the titanium minerals in the subsequent Bayer process dissolution process is reduced, and efficient utilization of high-sulfur bauxite resources can be achieved.

Description

technical field [0001] The invention belongs to the field of bauxite beneficiation, in particular to a method for removing titanium minerals in high-sulfur bauxite. Background technique [0002] With the increasing demand for alumina at home and abroad, the amount of bauxite mining has increased sharply, resulting in a continuous reduction in high-grade bauxite resources, and the phenomenon of "lean, fine and miscellaneous" ore is becoming more and more serious. The technical means is to deal with the impurity elements in the bauxite, so that the bauxite with high impurity content is suitable for the production of alumina by the Bayer process, which can alleviate the resource problem of the alumina industry. [0003] China is rich in high-sulfur bauxite resources. The total reserves of high-sulfur bauxite in my country are about 800 million tons, mainly concentrated in Guizhou, Chongqing and Henan. Sulfur in bauxite mainly exists in the form of pyrite, and part of it exists...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/02B03B1/00B03D103/04
CPCB03D1/02B03B1/00B03D2203/04
Inventor 程金华毕克俊
Owner GUANGZHOU CITY CONSTR COLLEGE
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