摘要
利用HCl溶液改性天然沸石提高其吸附能力,分析了沸石粒度、盐酸浓度、温度、时间对改性效果的影响;利用改性后沸石对甘蔗清汁进行静态脱色,由正交试验得出最佳工艺条件,脱色率可达64.8%;用X衍射(XRD)对改性前后、再生后的改性沸石进行了初步结构表征。
The natural zeolite has certain pigment adsorption performance. This paper uses hydrochloric acid solution to modify the natural zeolite and to improve its adsorption ability, and analyses the influences of zeo- lite grain size, hydrochloric acid concentration, temperature and time on the modification effects. Moreover, the paper uses the modified zeolite to decolorize the sugarcane juice,and the best technological conditions under which the decolorization rate reaches 64.8% are obtained by orthogonal experiment. Finally, the paper analyses the structure eharacterizatics of modified and post--regeneration zeolite by using XRD.
出处
《绿色科技》
2012年第5期280-282,共3页
Journal of Green Science and Technology
关键词
沸石
改性
甘蔗清汁
吸附
脱色
zeolite
modified
sugarcane juice adsorption
decolorization
