三石膏是当前迅速发展的工业生产中产生的3种主要的石膏，分别是酸法钛白生产副产的钛石膏、磷化工副产的磷石膏以及工业炉窑尾气脱硫副产的脱硫石膏。"三石膏"因处置方式的局限性而大部分简单地堆存于渣场，由此带来一系列严重的环境问题。针对当前"三石膏"利用率低的问题，分析了"三石膏"基本特征以及应用现状，并提出了"三石膏"循环利用新工艺。

"Three-gypsum" means three main types of gypsum produced in the rapidly developing industrial production,including titanium gypsum by-produced in the acid-route production of titanium dioxide,phosphor-gypsum by-produced in the phosphorus chemical industry,and desulfurization gypsum by-produced in the industrial furnace kiln tail gas desulfurization plaster.At present,most of "three-gypsum" are simply stored in the slag yard due to the limitation of the disposal method,which will cause a series of serious environmental issues.Aiming at the current low utilization rate of "three-gypsum",the basic characteristics and application status of "three-gypsum" are analyzed,and a new process to recycle "three-gypsum" is proposed.

石鑫(1994-),男,硕士生,主要从事含钒钛无机非金属材料研究,1256275650@qq.com