摘要
研究用多元酚焦炭化料制取活性炭的方法,并探索合适的工艺条件.研究表明,破碎至不同粒度的多元酚焦炭化料通过水蒸气活化制取活性炭较适宜的工艺条件是:活化温度800～850℃;活化时间分别为:颗粒炭1 h、定型颗粒炭2.5～3 h,制得的活性炭的吸附指标超过国家标准GB/T 13803.2-1999木质净水用活性炭的指标.碘吸附值在1 000mg/g以上,亚甲基蓝吸附值在12mL/0.1 mg以上.研究结果还表明,磷酸法不适宜用于多元酚焦炭化料制造活性炭.
Activated carbon was prepared from polyphenol char through steam activation, Suitable technological conditions are： activation temperature 800 - 850℃, activation time 1.0 h for particle activated carbon and 2.5 - 3.0 h for granular activated carbon. The adsoption capability of activated carbon from this char is higher than that specified for activated carbon from wood used for water purification （ GB/T 13803.2 - 1999 ）, with iodine number 〉 1 000 mg/g, methylene blue adsorption 〉 12 mL/0, 1 mg. It was also showed that the method of phosphoric acid activation is unsuitable to prepare activated carbon from polyphenol char.
出处
《林产化学与工业》
EI
CAS
CSCD
2005年第4期35-37,共3页
Chemistry and Industry of Forest Products
关键词
多元酚
炭化料
活性炭
polyphenol
char
activated carbon
