日用化学工业2017，Vol.47Issue(5)：246-250,5.DOI:10.13218/j.cnki.csdc.2017.05.002
"干浓硫酸"的制备与性质研究
Preparation and property of"dry concentrated sulfuric acid"
摘要
Abstract
Functional modification of surface of SiO2 nanoparticles (SN)with 1H,1H,2H,2H -perfluorooctanetrimethoxysilane was conducted,and corrosion resisting super hydrophobic SiO2 nanoparticles (SiN-F) were prepared. Then"dry concentrated sulfuric acid",which is sulfuric acid encapsulated in air inverse phase bubbles was prepared by mixing SN -F and 90% concentrated sulfuric acid under high speed stirring. The effect of the dosage of SN-F on formation of"dry concentrated sulfuric acid"was examined. Result shows that when the dosage of SN-F is 5% of the mass of concentrated sulfuric acid,morphology of the"dry concentrated sulfuric acid"is uniform spherical with particle size of 100-200 μm. The prepared"dry concentrated sulfuric acid"displays high specific surface area and certain mechanical strength. After 18 months,its morphology and properties remain unchanged. The method provides new opportunities for safety in transportation,storage and chemical reaction operations in industrial applications of concentrated sulfuric acid.关键词
气/液界面/界面吸附/浓硫酸/包裹/超疏水纳米二氧化硅Key words
gas-liquid interface/interfacial adsorption/concentrated sulfuric acid/encapsulate/super hydrophobic silica分类
化学化工引用本文复制引用
侯屹婷,关茹群,郝雅娟,杨恒权.."干浓硫酸"的制备与性质研究[J].日用化学工业,2017,47(5):246-250,5.基金项目
国家自然科学基金资助项目(21573136) （21573136）
国家自然基金委-山西联合基金资助项目(U1510105) （U1510105）
