化工学报Issue(10)：4183-4190,8.DOI:10.3969/j.issn.0438-1157.2014.10.057
钙铝比对11.3CaO•7Al2O3微观结构及其溶出性能的影响
Influence of calcium/aluminum ratio on microstructure and leaching of 11.3CaO·7Al2O3
摘要
Abstract
Calcium aluminate clinkers with different calcium/aluminum ratios (C/A) were obtained by the high-temperature sintering method. Phase composition, phase semi-quantitative content and crystal constant of sinter were studied with different C/A by XRD. SEM and EDS were used to observe microstructure and element contents. The alumina leaching property of sinter was studied. When C/A was lower than 1.6, the products were CaO·Al2O3and 11.3CaO·7Al2O3 (C11.3A7) and increase of calcium/aluminum ratio could lead to increase in the content of C11.3A7and leaching ratio of alumina. When C/A was 1.6, the phase was almost completely C11.3A7and the leaching rate of alumina reached a maximum. When C/A was higher than 1.6, the products were C11.3A7and 3CaO·Al2O3, and the leaching rate of alumina decreased accordingly. The lack of CaO in C11.3A7lattice improved the leaching reaction.关键词
烧结/钙铝比/11.3CaO·7Al2O3/显微结构/氧化铝/溶出率Key words
sintering/calcium/aluminum ratio/11.3CaO·7Al2O3/microstructure/alumina/leaching rate分类
矿业与冶金引用本文复制引用
王波,宗书凤,孙会兰,张建新..钙铝比对11.3CaO•7Al2O3微观结构及其溶出性能的影响[J].化工学报,2014,(10):4183-4190,8.基金项目
国家自然科学基金项目（51104053）；中国博士后科学基金项目(2012M510821)；河北省自然科学基金项目（E2012208047）。 （2012M510821）
