Method for preparing artificial rutile from high titanium slag

A technology of artificial rutile and high-titanium slag, applied in the direction of titanium dioxide, titanium oxide/hydroxide, etc., can solve the problems of high energy consumption, long roasting treatment time, and long production cycle
CN107399758AInactive Publication Date: 2017-11-28YUNNAN MINZU UNIV
4 Cites 11 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
YUNNAN MINZU UNIV
Publication Date
2017-11-28
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
Patent Text Reader

Abstract

The invention relates to a method for preparing artificial rutile from high titanium slag. The method comprises the following steps: crushing high titanium slag, performing alkaline leaching decontamination, performing modification roasting, performing acid decontamination, calcining and the like. According to the method, microwaves are adopted as a heat source, so that the heating velocity is increased, the heating effect is improved, and meanwhile the reaction energy consumption is reduced when being compared with that of conventional roasting; the roasting temperature of the high titanium slag is reduced, a roasting process is simple, the grade of titanium dioxide is ensured, furthermore the obtained artificial rutile meets a chlorination process for producing titanium dioxide, the production cycle is greatly shortened, and the production cost is lowered; and meanwhile, due to acid-alkali combined leaching, impurities such as calcium oxide, aluminum oxide and silicon dioxide in the high titanium slag are effectively removed, and the grade of the rutile is greatly increased.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a method for preparing artificial rutile from high-titanium slag, which belongs to the technical field of microwave metallurgy. Background technique

[0002] High-titanium slag is the product of separation of slag and iron after reduction and smelting of ilmenite in an electric furnace, and is used as a high-quality raw material for the production of artificial rutile. With the development of titanium industry, natural rutile resources are gradually exhausted, and there is an urgent need to enrich titanium-rich materials. Artificial rutile is a titanium-rich material with the same composition and structural properties as natural rutile. It is a high-quality substitute for natural rutile and can be used for the production of titanium dioxide by the chloride method. At present, the production methods of artificial rutile include electrothermal method, reduction corrosion method and acid leaching method.

[0003] Traditional hea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More