关键词: 宣龙式鲕状赤铁矿, 工艺矿物学, 吸波试验, 吸波特性

Abstract: In order to efficiently utilize a Xuanlong-style oolitic hematite，aiming at the problem that iron-containing minerals and gangue minerals are difficult to separate from each other，the process mineral‐ ogy characteristics were analyzed，and the pure mineral wave absorption test and wave absorption character‐ istics of its constituent minerals were analyzed. The experimental results show that the power has an impor‐ tant influence on the absorbing ability of hematite，limonite，siderite，magnetite，apatite and quartz. When the power is lower than 500 W，the power has little effect on the absorbing ability of minerals，and even has no effect on quartz. When the power is more than 500 W，with the increase of power，the heating rate of min‐ erals becomes faster，and the absorbing ability becomes stronger and stronger. The absorbing properties of minerals are related to magnetism. The stronger the magnetism is，the stronger the absorbing ability is. The absorbing ability of hematite，limonite，siderite and apatite is similar，the absorbing ability of magnetite is the strongest，and the absorbing ability of quartz is the weakest.

Key words: Xuanlong-style oolitic hematite, process mineralogy, absorption test, absorbing proper‐ ties