titanium resources of China

China Titanium Resources

China has rich reserves of titanium resources, but mainly ilmenite resources, with very few rutile mines. In the ilmenite reserves, salt ore accounts for the majority and part of it is placer. The ilmenite deposits are mainly Sichuan, Yunnan and Hebei; the placer deposits are mainly Guangdong, Guangxi, Hainan and Yunnan. Rutile mines are mainly distributed in Hubei and Shanxi. The Panzhihua area in Sichuan, China is a super large storage area of vanadium-ilmenite ore. The mining area has a large ore body, which is composed of more than a dozen mining areas such as Panzhihua, Hongge, Baima and Taihe. From the perspective of the geotectonic position, it is located in the northern part of my country's Sichuan-Yunnan north-south tectonic system. The Anning River Fault in the area runs through the central part of the area from south to north. The deposit is controlled by this large fault zone and extensively developed basic and ultra-basic rock masses. The rock masses are distributed north-south, steeply inclined to the west, and rock masses vary in size, generally 5 ~ 20km long. The type of ore is dense massive and disseminated ore. The titanium minerals in the ore are mainly granular ilmenite, ilmenite spar and a small amount of flake ilmenite. From the perspective of mineral selectivity, granular ilmenite can be recovered separately, while ilmenite and flake ilmenite cannot be recovered separately. During beneficiation, granular ilmenite selected from the iron beneficiation tailings of vanadium-titanium magnetite can be used. The ilmenite is characterized by a compact structure and a large amount of magnesium oxide in solid solution. Therefore, the selected concentrate has a lower grade and a higher content of MgO and CaO, which brings certain difficulties to extraction metallurgy. There are also vanadium-titanium magnetites with similar properties in Chengde, Hebei, but the reserves are small, and the solid-dissolved magnesium oxide in titanium concentrates is low, so better quality titanium concentrates can be selected. Yunnan is rich in titanium resources, covering many districts and counties in the province. From the perspective of the geotectonic position, the titanium ore area is located in the southern part of my country's Sichuan-Yunnan north-south tectonic system. The proven reserves are considerable, and most of them are secondary inland placers, and a small part are primary rock mines. The placer in Yun|South is easy to mine and beneficiate, and titanium concentrate of better quality can be obtained by simple beneficiation. The ore generally contains Ti0248% ~ 50%, and the total amount of titanium iron oxide (FeO+Fe2O3 +TiO2) is greater than 95%. Except for the slightly higher Mg0 (1.2% ~ 2%), the content of other non-iron impurities is less. Therefore, Yunnan ilmenite is a kind of titanium concentrate with better quality and higher application value. The ilmenite ore deposits in Guangdong, Guangxi and Hainan are of high grade and low impurity. It is easy to mine and select, and is accompanied by zircon, monazite, xenotime, rutile, etc., which is of high value for comprehensive utilization and easy to extract. But most of them are associated with radioactive minerals. In addition, there are also placer ilmenite resources in the coastal areas of Fujian, Shandong, Liaoning and parts of Jiangxi. Several rutile deposits have also been discovered in my country. The average TO grade of the raw ore is 2% -4%, but due to the compact structure and small particle size, it is difficult to beneficiate. The typical chemical composition of ilmenite concentrates from various parts of China is listed in Table 3-4.