本文回顾了选矿一拜耳法新工艺的立项背景和研究历程及取得的技术成果，阐述了选矿一拜耳法新工艺对我国氧化铝工业发展产生的重大与深远意义。-This paper reviews the Bayer beneficiation of a new technology project background and progress of the research and technological achievements, described the new technology of benefici