造纸废液木素制备粉状活性炭的研究  

Preparation of Activated Carbon of Lignin from pulping

作　　者：马雅琦[1] 金小娟[2] 彭一可[2] 

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广州510640 [2]北京林业大学材料科学与技术学院,北京100083

出　　处：《黑龙江造纸》2010年第2期8-11,共4页Heilongjiang Pulp & Paper

基　　金：山东轻工业学院开放基金:废液木素结构及利用的研究;北京市共建项目:废弃木质材料利用对此项目的资金支持

摘　　要：以碱法木浆废液木素为研究对象,利用磷酸作活化剂对碱木素进行炭化活化,制得粉状活性炭,优化工艺条件,得出最佳的工艺条件为:磷料比4.5∶1,活化温度500℃,活化时间10min。在此条件下制得活性炭产品的亚甲基蓝吸附值达8.6mL/0.lg活性炭得率为31.25%。进一步对所得产品的表面结构、元素组成、比表面积及孔径分布进行表征。Activated carbon was prepared using lignin from pulping with phosphoric acid by carbonization and activation, the parameters were optimized. The activated carbon＇s absorption competence of methylene blue was 8.6mL/0. lg after the three factors are optimized, activated temperature 500℃, reagent ratio4.5 ： 1, activated time 10min, and the yield of activated carbon was 31. 250%. Finally the properties of activated carbon were characterized, including structure and property of surface, elemental composition, specific surface area and pore size distribution.

关 键 词：木素 磷酸 活性炭 

分 类 号：TS79[轻工技术与工程—制浆造纸工程]