Method for recovering and utilizing titaniferous fine materials

Abstract

The invention discloses a method for recovering and utilizing titaniferous fine materials. The method mainly comprises the steps of titaniferous fine material forming, formed material roasting, crushing grading and the like. The method has the beneficial effects that the operation of the method for recovering and utilizing the titaniferous fine material is simple; only the processes of forming, roasting, crushing and the like are performed; the investment cost is low; a great number of fine material grade materials can be effectively treated; the utilization value of fine material grade titanium slag or other fine material grade titaniferous substances can be obviously improved. The method provided by the invention has the advantages that in the whole realization process, the cost of the used production equipment is reduced; the byproduct coal gas of the titanium slag furnace can also be effectively used, and the effects of clean production and energy source saving is achieved.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a method for recycling titanium-containing fine materials. Background technique [0002] Due to its excellent product performance and good environmental friendliness, the chloride-process titanium dioxide is an industry that China encourages and gives priority to development. Compared with the sulfuric acid method, the chlorination method of titanium dioxide has strict requirements on raw materials, requiring not only high titanium dioxide content, extremely low calcium and magnesium content, but also uniform particle size distribution. Titanium slag and artificial rutile are commonly used raw materials for titanium dioxide by the chloride process, but based on the characteristics of the production process of titanium slag and artificial rutile, some fine materials will always be produced, and these fine materials cannot be used by the chloride process titanium dioxide, result...

AI Technical Summary

Problems solved by technology

Focusing on the growth of fine-grade titanium-containing material particles, domestic and foreign scholars have done a lot of research, such as Chinese patent CN 103146916 A "a granulation method for high-titanium slag and rutile powder", which combines high-titanium slag, gold Red stone powder and binder are added to the granulator for granulation. After granulation, the material with a suitable particle size is obtained by sieving and used as the raw material for titanium dioxide in the chloride process. However, this method has low primary pass rate, low production capacity and energy consumption. High, industrialization is difficult to implement and other issues; Chinese patent CN 104058450 A "a granulation preparation method for titanium coke particles" provides a method for granulating and preparing titanium coke particles as a composite raw material for chlorination. The fine-grained titanium-containing material and The polymer hydrocarbon mixture is heated, mixed, coked, crushed and classified, and calcined to make a granular composite raw material suitable for the chlorination process, which can effectively use titanium-containing fine materials, but the process is cumbersome, especially It involves the coking process and has high requirements for environmental protection facilities. At present, industrial production has not been realized.