硅胶有效吸脱水特性研究  

Study on the effective water absorption and dehydration characteristics of silica gel

作　　者：王洪亮[1,2,3,4,5] 张震 张勇平 胡宏杰[1,2,3,4,5] 刘红召[1,2,3,4,5] 王威 柳林[1,2,3,4,5] WANG Hongliang;ZHANG Zhen;ZHANG Yongping;HU Hongjie;LIU Hongzhao;WANG Wei;LIU Lin(Zhengzhou Institute of Multipurpose Utilization of Mineral Resourses GACS,Zhengzhou 450006,China;China National Engineering Research Center for utilization of Industrial Minerals,Zhengzhou 450006,China;Key Laboratory for Polymetallic Ores’Evaluation and Utilization,MNR,Zhengzhou 450006,China;Engineering Technology Innovation Center for Development and Utilization of High Purity Quartz,Ministry of Natural Resources,Zhengzhou 450006,China;Key Laboratory of Comprehensive Utilization of Gold Resource in Henan Province,Zhengzhou 450006,China;National Key Laboratory of Human Factors Engineering,China Astronaut Research and Training Center,Beijing 100094,China)

机构地区：[1]中国地质科学院郑州矿产综合利用研究所,河南郑州450006 [2]国家非金属矿资源综合利用工程技术研究中心,河南郑州450006 [3]自然资源部多金属矿综合利用评价重点实验室,河南郑州450006 [4]自然资源部高纯石英开发利用工程技术创新中心,河南郑州450006 [5]河南省黄金资源综合利用重点实验室,河南郑州450006 [6]中国航天员科研训练中心人因工程全国重点实验室,北京100094

出　　处：《应用化工》2024年第7期1532-1535,共4页Applied Chemical Industry

基　　金：国家重点研发计划项目资助(2022YFC2904804);人因工程国家重点实验室基金资助(HFNKL2023WW03)。

摘　　要：为了解硅胶在吸脱水过程中水含量分布特征,开展了脱附温度对硅胶吸附量与物相结构的影响,研究了脱附气氛、脱附温度、脱附时间、含水量与脱附次数对硅胶有效残留水的影响,并计算了硅胶在不同脱附条件下的有效吸附水。结果表明,当脱附温度≤130℃时,吸附量无衰减,结构保持稳定。硅胶有效残留水同脱附温度、脱附气氛相关,同脱附前含水量、脱附次数无关。在空气气氛脱附时,最佳脱附条件为130℃,1 h,有效残留水为8.5%~9.1%,当吸附20~150 min时,有效吸附水随吸附时间线性增加,特别当吸附120~150 min时,有效吸附水达到12%~14%。In order to understand the distribution characteristics of water content in the process of silica gel adsorption and dehydration,the influence of desorption temperature on the adsorption capacity and phase structure of silica gel was studied.The effects of desorption atmosphere,desorption temperature,desorption time,water content,and desorption times on the effective residual water of silica gel were studied.The effective adsorption water of silica gel under different desorption conditions was calculated.The results showed that when the desorption temperature was not greater than 130℃,the adsorption capacity did not decay and the structure remained stable.The effective residual water of silica gel is related to the desorption temperature and atmosphere,but not to the pre desorption water content and desorption times.When desorbing in an air atmosphere,the optimal desorption condition is 130℃,1 h,and the effective residual water is 8.5%~9.1%.When adsorbed for 20~150 min,the effective adsorbed water increases linearly with adsorption time,especially when adsorbed for 120~150 min,the effective adsorbed water reaches 12%~14%.

关 键 词：硅胶 脱附 温度 有效残留水 有效吸附水 

分 类 号：TQ072[化学工程]