磷酸活化草浆黑液木质素制备活性炭的研究OA北大核心CSCDCSTPCD
Preparation of Activated Carbon from Straw Black Liquor Lignin Impregnated by Phosphoric Acid
用磷酸活化草浆造纸黑液木质素制备活性炭.探讨了磷酸在木质素活化过程中的作用,研究了磷料比、活化温度、活化时间对所制活性炭的比表面积和对正丁烷吸附量的影响.结果表明,草浆造纸黑液木质素是一种优良的制备活性炭的原料,磷酸不仅是脱水剂,而且还是活化过程的保护剂.活性炭制备条件为:磷料比值2.5,活化温度450℃,活化时间60～70 min,制得活性炭的BET比表面积达1772 m2/g,吸附等温线介于Ⅰ型和Ⅱ型之间,正丁烷吸附量为485 mg/g.
Activated carbon was prepared from straw black liquor lignin using phosphoric add as aclivation agenl. The function of phosphoric acid in activation process was discussed, and effects of reaction conditions such as ratio of activation reagent to maleri-al, the temperature and the activation time were investigated. The results showed (hat the lignin of straw black liquor was a good material for preparing activated carbon. Phosphoric acid acts as both [he dehy…查看全部>>
闫伟;张艳;杨建华;鲁金明;王金渠
大连理工大学化工与环境生命学部化工学院,辽宁大连116024大连理工大学化工与环境生命学部化工学院,辽宁大连116024大连理工大学化工与环境生命学部化工学院,辽宁大连116024大连理工大学化工与环境生命学部化工学院,辽宁大连116024大连理工大学化工与环境生命学部化工学院,辽宁大连116024
化学化工
黑液草浆木质素磷酸活性炭
black liquorstraw ligninphosphoric acidactivated carbon
《林产化学与工业》 2011 (5)
81-84,4
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