General situation of rutile resources

Rutile deposits in nanzhao county mainly occur in Permian Kuanping Group schist, granulite, pheasant amphibole schist and marble. This layer starts from Zhuping Village, Yunyang Town in the east and borders the rutile mining area in liuhe town, Fangcheng County. Northwest through Yunyang Huoshi Pavilion, Minglu Mountain in the suburbs, Guanshan, Baliqiao, Yang Shulin in Xiaodian, Youfang, Tumen, Linglong Mountain, Zhangzhuang and Zhuang Xiaodong in Liu Shan to Qingfeng Mountain in the east of the county; Through Luoping Nanshan, Zhou Wan, Guangou and other places in the west of the county, there is a large area exposed to the northwest of Mashiping Township, with a total length of about 50 kilometers and a width of 6 kilometers, and the narrowest point is 1 km (referring to ore-bearing strata). The grade of rutile is generally 2%, and the highest is 4. 1%. According to the average width of 800 meters provided by the Second Geological Exploration Institute, the mining depth is 50 meters, and the rutile mine in the county is more than 5 billion tons. This set of ore-bearing strata can be divided into coarse-grained type and fine-grained type according to rutile particle size, of which coarse-grained type accounts for 90%.

(1) The coarse-grained rutile ore body is tens of thousands of meters long, with three layers in general and six layers at most. The ore types are simple, including rutile-bearing hornblende schist and plagioclase hornblende schist. The content of main beneficial component rutile titanium dioxide is as high as 4.65438 0%, with an average of 2.2%. Rutile is self-shaped, semi-self-shaped columnar, brownish red, oily and shiny, with a particle size of 0.02× 0.12mm-0.12× 0.8mm, which is embedded among gangue minerals such as amphibole, plagioclase and epidote.

(II) Fine-grained rutile ore

The ore body is thousands of meters long, generally 10-20 layers. The seam is mainly hornblende schist, containing rutile, accounting for 60%. Followed by other rutile-bearing mica schist, plagioclase schist and green curtain schist. The content of rutile TiO2 is generally 1.76-3.60%, with an average of 2.00%. The basic characteristics of rutile are similar to coarse particles, but the particle size is fine, mostly between 0.05-0.1mm.

artificial rutile

Artificial rutile, also known as artificial rutile, refers to a titanium-rich raw material with the same composition and structural properties as natural rutile, which is produced by separating most iron components from ilmenite through chemical processing. The content of TiO2 _ 2 fluctuates between 965,438+0% and 96% according to the processing technology. It is a high-quality substitute for natural rutile and is widely used in the production of titanium chloride, titanium tetrachloride, metallic titanium and enamel products. The main producing countries are Australia, the United States, Japan, India and Malaysia. And the output has exceeded that of natural rutile, mainly because the natural rutile reserves are exhausted and the output is declining year by year.