石膏固废再生利用研究进展  

Research progress on recycling of gypsum solid waste

作　　者：信翔宇 陈广立[1] 张秀芝[1] 丰曙霞 黄永波 王旭江[2] 段广彬[1] XIN Xiangyu;CHEN Guangli;ZHANG Xiuzhi;FENG Shuxia;HUANG Yongbo;WANG Xujiang;DUAN Guangbin(College of Materials Science and Engineering,University of Jinan,Jinan 250022,China;School of Energy and Power Engineering,Shandong University,Jinan 250012,China)

机构地区：[1]济南大学材料科学与工程学院,山东济南250022 [2]山东大学能源与动力工程学院,山东济南250012

出　　处：《中国粉体技术》2023年第1期10-18,共9页China Powder Science and Technology

基　　金：国家重点研发计划项目,编号:2020YFC1910000。

摘　　要：综述不同类型石膏的化学组成;概述废弃石膏、磷石膏、脱硫石膏、氟石膏、钛石膏等不同石膏的再生方法和应用领域,废弃石膏水化成再生石膏后可实现石膏资源的循环使用,磷石膏再生后可用作建筑石膏、水泥缓凝剂以及化肥等,脱硫石膏在一定条件下可以转化为高强石膏或建筑石膏,氟石膏、钛石膏等目前仅能应用于初级加工;总结石膏固废行业的发展现状与趋势,磷石膏和脱硫石膏的综合利用率虽然得到逐年提升,但是现阶段的高级石膏产品较少,因为钛石膏、氟石膏等产量较小,需要进一步提高综合利用率;提出由于不同地区的石膏固废种类不一致,应根据地区选择适合的固废处理与利用方式,出台相关政策,借鉴国外先进的固废处理技术;认为固废处理要综合考虑经济性、环保性以及利用率等问题,将是未来石膏固废再生利用行业的发展趋势。The chemical composition of different types of gypsum was reviewed.The regeneration methods and application fields of gypsum such as waste gypsum,phosphogypsum,desulfurized gypsum,fluorine gypsum and titanium gypsum were summarized.After the waste gypsum is hydrated into recycled gypsum,the recycling of gypsum resources can be realized.After the regeneration of phosphogypsum,it can be used as building gypsum,cement retarder and chemical fertilizer,etc.Desulfurized gypsum can be converted into high strength gypsum or building gypsum under certain conditions,and fluoropgypsum and titanium gypsum can only be used in primary processing.The development status and trend of gypsum solid waste industry were summarized.Although the comprehensive utilization rate of phosphogypsum and desulfurized gypsum has been increased year by year,there are few advanced gypsum products at the present stage.Because the output of titanium gypsum and fluoropgypsum is small,the comprehensive utilization rate needs to be further improved.Due to the different types of gypsum solid waste in different regions,it is suggested to choose the appropriate treatment and utilization method of solid waste according to the region,introduce relevant policies and learn from the advanced solid waste treatment technology abroad.It is believed that the problems of economy,environmental protection and utilization rate should be considered comprehensively in solid waste treatment,which will be the development trend of gypsum solid waste regeneration industry in the future.

关 键 词：固体废弃物 石膏 磷石膏 脱硫石膏 再生石膏 再生利用 

分 类 号：TU526[建筑科学—建筑技术科学] TQ117.3[化学工程—无机化工]