Kraft Pulping of Bamboo under Ultrasonic Treatment

Kraft pulping of bamboo under ultrasonic treatment was studied and compared with traditional kraft pulping.The obtained optimum process conditions for kraft pulping of bamboo under ultrasonic treatment was Na2O dosage 17.5 %,cooking time 120 min,and ultrasound initiating at the last 30 min of cooking.Compared with traditional kraft pulping,the dosage of Na2O decreased by 12.5 %,the cooking time shorted by 20 %,and the yield increased by 11.12 %.The properties of pulp obtained under ultrasonic treatment were close to that of pulp obtained by traditional kraft pulping.