Abstract: Study on the X-ray Radiation Separator and the Separation Technology Liu Mingbao1，Yin Wanzhong1，Han Yuexin1，Sun Zhongqiang2，Yu Jiujiang3 1. College of Resources and Civil Engineering，Northeastern University；2. Northeastern University Metallurgical Technology Institute；3. Concentration Plant,Jinchuan Group Ltd. The development history and the working principle of X-ray radiation separator were described in detail, and the separation practical data both at home and abroad in recent years were introduced, the research indicated: qualified tailings with yield high to around 60% could discarded in advance through X-ray radiation separation, could increased the milling grade of dressing plant greatly, economic and technical indexes and comprehensive benefit of dressing plant could improved remarkably.

Key words: Preconcentration, X-ray radiation separation, Lous grade ore