大连工业大学学报2011，Vol.30Issue(3)：195-198,4.
以稻壳为原料制备白炭黑和活性炭
Preparation of silica and activated carbon from rice husk
马红超 1杨君 1董晓丽 1马春1
作者信息
- 1. 大连工业大学化工与材料学院,辽宁,大连,116034
- 折叠
摘要
Abstract
The silica and activated carbon was prepared by the carbonization-alkali dissolving method using the rice husk as the raw material, and dicussed the effect of preparation condition on the product. The results indicated that the temperature and time of carbonization are 600 ℃ and 30 min, the time of alkalization is 4 h, the concentration of sodium hydroxide is 2.5 mol/L. The silica dioxide extracted from the rice husk was amorphous. The yield, purity and whiteness of silica are 90％, 93. 5％ and 95％, respectively. The methylene blue adsorption capacity of activated carbon is 240 mL/g. The result indicate that this technology provides a new way to reuse the rice husk.关键词
稻壳/碳化/碱溶/白炭黑Key words
rice husk/ carbonization/ alkaline dissolve/ silica分类
化学化工引用本文复制引用
马红超,杨君,董晓丽,马春..以稻壳为原料制备白炭黑和活性炭[J].大连工业大学学报,2011,30(3):195-198,4.
