摘要
实验选用椰壳活性炭、木质活性炭、煤质活性炭和硅藻土为主要原料,经过配料、成型、干燥、烧结等工艺制备活性炭功能陶瓷材料。通过体积密度、抗压强度、气孔率和碘吸附值性能指标确定了最佳制备工艺条件。对比分析了烧成温度、环境温度、吸附时间等工艺条件对三种不同活性炭陶瓷材料苯吸附的影响。实验表明:煤质活性炭30%,硅藻土70%,烧结温度为800℃时制备的煤质活性炭陶瓷材料,在环境温度为30℃,吸附时间24h时,苯的吸附率为12.68%,48h时吸附达到饱和状态。
Activated carbon ceramics were prepared by using diatomite and three different types of activated carbon powder as main materials followed by shaping and calcining processes. The properties such as bulk density, compressive strength, porosity and iodine absorption were tested and thus the optimal technical conditions were determined. The influences of sintering temperatures, activated ambient temperatures and adsorption time on benzene absorption capacity were characterized. The results show that the optimal ratio （by mass） for diatomite to coal activated carbon was 7：3, and the best sintering temperature was 800℃. Benzene absorption capacity of the materials made under the conditions was up 12.68% at 30℃ for 24h. Activated carbon ceramics exhibit a maximum capacity at ambient temperatures at 30℃ for72h.
出处
《质量技术监督研究》
2015年第4期25-28,共4页
Quality and Technical Supervision Research
关键词
活性炭
硅藻土
苯吸附
Activated carbon
Diatomite
Benzene absorption capacity
