【作者】 易发成；

【Author】 YI Fa-cheng(Southwest University of Science and Technology, Mianyang 621002, China)

【机构】 西南科技大学；

【摘要】 通过对沸石的活化方法和其基本物化性能（主要包括化学成分、阳离子交换容量、密度、比表面积、孔径、渗透系数及热稳定性）及Pb²⁺,Co²⁺离子的吸附性能的初步研究认识到:1)经过酸化并经热处理后的沸石的阳离子交换容量（CEC）明显高于未经处理的原土;2)通过实验得出粒度为100目的天然沸石经酸活化处理后在300C下热活化,1.5h后测得离子交换量为最佳;3)沸石的密度为1.789g/cm³;渗透系数为0.087 cm/s（20C）;体积平均粒径为13μm;比表面积为190.67m²/g,平均孔径为102.27 nm;4)沸石对重金属离子的吸附实验表明沸石对重金属离子Pb²⁺的吸附性能优于Co²⁺,20min时Pb²⁺和Co²⁺的吸附比（Rd）分别为20238.8ml/g及63.8ml/g;Pb²⁺和Co²⁺去除率分别为99.50%和40.00%。更多还原

【Abstract】 The basic physicochemical properties of chemical composition, the cationic exchange capacity, density, specific surface area, pore diameter, osmosis coefficient and so on, and the Pb²⁺, Co²⁺ ions adsorption capability of Xinjiang zeolite are researched. The experiment study showed that 1) The CEC value of zeolite treated with sulphuric acid and heat is higher than original zeolite; 2) The optimum activation conditions for zeolite is to treat with the sulphuric acid activation and heat activation for 1.5 hours at 300 C; 3)The density of zeolite is 1.789 g/cm³, coefficient of permeability, 0.087 cm/s （20 C）; bulk average size, 13μm; specific surface area, 190. 67 m²/g and average pore size, 102.27 nm; 4) zeolite adsorbs the heavy metal ions mostly in 20 minutes and the adsorption of Pb²⁺ ion is better than Co²⁺ ion, Co²⁺ adsorption rate of zeolite is 20 238.8 ml/g and 63.8 ml/g respectively, Pb²⁺, Co²⁺ cleanout rate of zeolite is 99.5% and 40.00% respectively.更多还原