Method for extracting cellulose from straw

The invention belongs to the technical field of straw utilization and particularly relates to a method for extracting cellulose from straw. Straw is wetted by alkali liquor and subjected to high-temperature treatment, suction filtration and drying, a hydrochloric acid-ammonium chloride solution is added to obtained powder for stirring treatment, hydrogen peroxide is added for constant-temperaturestirring after cooling, filter residues are placed in a high-temperature and low-pressure environment for treatment after filtration, the filter residues are washed with deionized water to be neutraland finally washed with ethanol, suction filtration and drying are performed, and the straw cellulose can be obtained. With the adoption of the method, cellulose in the straw can be effectively extracted, the extraction efficiency is high, and the impurity content of the extracted cellulose is low. 本发明属于秸秆利用技术领域，尤其是种从秸秆中提取纤维素的方法，采用碱液润湿秸秆，高温、抽滤、烘干后，得到的粉末加入盐酸-氯化铵溶液搅拌处理，降温后加入双氧水恒温搅拌，过滤后滤渣放入高温低压环境中处理，再用离子水洗涤滤渣至中性，最后用乙醇洗涤，经抽滤、烘