磷酸法制备酸水解木质素粉状活性炭的工艺研究  

STUDY ON PREPARATION OF POWDER ACTIVATED CARBON FROM ACID-HYDROLYSIS LIGNIN WITH H_3PO_4 ACTIVATION

作　　者：王志高[1] 蒋剑春[1] 邓先伦[1] 杨凯华[1] 

机构地区：[1]中国林业科学研究院林产化学工业研究所,江苏南京210042

出　　处：《林产化工通讯》2005年第4期1-5,共5页Journal of Chemical Industry of Forest Products

基　　金：国家"863"项目的部分内容(2001AA514002)

摘　　要：以酸水解木质素为原料,以磷酸为活化剂,采用特殊的预处理方法,制备出了吸附性能较高的粉状活性炭。用正交试验法得到了优化的预处理工艺:纯磷酸与酸木质素的质量比为2.2∶1,预处理温度为140℃,预处理时间为9h。在此条件下制得的样品吸附性能为:亚甲基蓝吸附值达到225mg/g,A法焦糖脱色率达到110%。With a special pretreatment of mixture of acid-hydrolysis lignin and H_3PO_4, high adsorptivity powder (activated) carbon was made. Suitable technology of pretreatment was studied by orthogonal tests, and finally optimum conditions are obtained as: mass ratio of phosphoric acid and the lignin is 2.21, temperature and time of pretreatment are 140and 9h, respectively. Properties of the product are: methylene blue 225mg/g; decolorization of (caramel) A 110%.

关 键 词：酸水解木质素 磷酸活化 预处理 活性炭 

分 类 号：TQ424.1[化学工程]