文献类型：会议论文

英文题名：Corrosion mechanism of rock wool in sulfuric acid

作者：Li, Peng[1]; Yuan, Zhi Neng[1]; Chen, Xue Mei[1]; Xu, Kang Hui[1]; Wu, Qiu Fang[1]

机构：[1] School of Chemical Engineering, National Engineering Research Center of Ultrafine Powder, East China University of Science and Technology, Shanghai, China

会议论文集：Renewable Energy and Environmental Technology

会议日期：September 21, 2013 - September 22, 2013

会议地点：Jilin, China

语种：英文

外文关键词：Corrosive effects - Rocks - Wool - Reaction intermediates - Ion exchange - Sulfuric acid - Aluminum corrosion - Ions

摘要：The corrosion behavior and fracture mechanisms of rock wool have been studied. After different corrosion test, morphologies of rock wool fibers were obtained using SEM. The leaching rate of non-siliceous cations was measured using ICP-MS. Elemental analysis and the structure of the fiber surfaces were investigated by SEM-EDS and XRD. The results revealed that the corrosion of rock wool fibers in sulfuric acid solution was primarily attributed to calcium, magnesium and aluminum ion depletion. Rock wool fiber dissolution begins by the exchange of network modifier ions via metal-proton exchange reactions, then a partial removal of network intermediate ions by Al,Fe-proton exchange reactions followed by the liberation of partially detached Si tetrahedrals. ? (2014) Trans Tech Publications, Switzerland.