Abstract:

To get the high quality cellulose, by studying on the extraction technology of cellulose from corn stalk, the author had determined the technique of more extraction contents of cellulose and bigger removal rate of hemicellulose and lignin. The results showed that the removal rate of hemicellulose was 92.82% under the conditions of NaOH concentration 5%, extracting temperature 55℃, extracting time 1.5 h. The removal rate of lignin was 64.32 % under the conditions of NaClO2 concentration 9.5 g/L, extracting temperature 75℃. Based on these conditions, the content of cellulose extraction was more than 70.12%.