The economic evaluation of iron-gangue ore resource's exploitation and utilization

Due to the low nature grade,picking selecting technology,smelting technology and equipments of iron ore,the iron ore resource recovery ratio is lower.Thus,producing a great deal of iron-gangue ore.Currently,based on solving the iron-gangue ore recovery technology and equipment problems,also based on highly rising extract iron ore price,the iron-gangue ore resource′s exploitation and utilization can be processed.The paper brings forward the principle of economy evaluation of iron-gangue ore resource′s exploitation and utilization through mineral bed economy grade counting principle.By collecting relating parameters and forecasting extract iron ore price trend,the paper figures out such policy that the 7% of iron-gangue ore critical grade,free tax of iron-gangue ore recovery and half interest of base construction investing loan is a economic condition.