How much iron content in domestic iron ore has qualified?
Indeed, the northeast northeast iron ore iron ore is mainly in Anshan mining area, which is currently China's largest reserves of mining area, large ore bodies are mainly distributed in Liaoning Province, Anshan (including large arc hill, cherry orchard, Anshan, Gongchangling and other things), Benxi (male, Waitoushan, Finland far fort), part of the deposit distribution in Jilin Province, near the call. Anshan mining area is the main raw material base of Anshan Iron and steel and Benxi Iron and steel
Most of the gangue minerals are made of quartz, and SiO2 is 40-50%. But Benxi Tongyuan Fort iron ore for the autolysis of ore, the basicity (Ca+Mg/SiO2) above 1. And manganese containing 1.29-7.5% can be used instead of manganese ore.
Ore minerals are mainly magnetite and hematite, some of which are false hematite and semi false hematite. The structure is compact and hard, and the gangue distribution is uniform and dense. The ore dressing is difficult and the reducibility of ores is poor.
Iron ore in North China is mainly distributed in Hebei, Xuanhua, Qian'an and Handan, Xingtai, Wuan, mining villages and other places, as well as Inner Mongolia and Shanxi. Shougang, Baotou Steel, TISCO and Handan, Xuanhua and Yangquan and other iron and steel plant raw materials base.Luan mining area to move to Anshan lean magnetite ore, containing acid gangue, S, P, fewer impurities, ore beneficiability good.
The iron ore resources China has two characteristics: one is a lean, lean ore reserves accounted for 80% of total reserves; two is a multi element compound ore more symbiotic. In addition, the ore bodies are complex. Some of the iron poor deposits are hematite and the lower part is magnetite.
