酸碱法预处理稻杆提纯纤维素的研究

Rice straw would be pretreated with different metheds, thus cellulose in it would be utilized effectively. Using different concentrations of NaOH and H2SO4 solution to cook the rice straw, the influence of concentrations on the content of the cellulose in it was researched, and after pretreatment. The morphology of rice straw was analyzed by scanning electron microscope, the content of glucose was detected by high-performance liquid chromatography and the hydrolysis of the cellulose was analyzed after treated by H2SO4. Treated by 5% of the NaOH solution，the content of cellulose in rice straw was raised up to 58.33%, the treating effect is better. While pretreated with the H2SO4 solution, if the concentration of H2SO4 was more than 1%, the content of cellulose would loss caused by hydrolysis. Using 5% of the NaOH solution for preprocessing, cellulose can be purified effectively, and the foundation for consequent utilizing the cellulose in the rice straw was built up.