摘要
研究了以竹节废料为原料,采用微波辐射磷酸法制备活性炭的可行性。探讨了微波功率、活化时间及磷酸浓度对产品活性炭各项指标的影响。得到了微波辐射磷酸法制备活性炭的最佳工艺:微波功率560W、活化时间9min、磷酸质量分数40%。用此工艺条件制得的活性炭碘吸附值889.0mg/g、亚甲基蓝脱色率178mL/g、得率31.0%。该工艺所需活化时间为传统方法的1/45,产品活性炭亚甲基蓝脱色率为国家一级品标准(GB/T12496.10-1999)的1.48倍。本工艺方法为竹节废料的综合开发利用找到了新的途径。
Feasibility of preparing activated carbon from bamboo knot with phosphorous acid by microwave radiation was studied.Effects of microwave power,activation time and phosphorous acid solution concentration on the quality of activated carbon was investigated.Optimum technology and result were obtained as follows:microwave power 560 W,activation time 9 min and phosphorous acid solution concentration 40%(wt %),iodine value of activated carbon (889.0 mg/g),decolorizing capacity for methylene blue 178 mL/g and yield 31.0%.The activation time of this process was 1/45 times as fast as the conventional process.The decolorizing capacity for methylene blue was 1.48 times as much as that specied in National Standard(GB/T 12496.10-1999).A new way on utilizing bamboo knot resource was provided by this method.
出处
《林产化学与工业》
EI
CAS
CSCD
2004年第1期91-94,共4页
Chemistry and Industry of Forest Products
基金
国家自然科学基金资助项目(20167001)
