摘要
采用溶剂法结合超声波处理办公废纸,评价了油墨的脱除效果。结果表明,在实验条件下,较理想的处理条件为:溶剂抽提时间40min;超声波处理时间10 min;超声波处理温度40℃;超声波处理功率300W;超声波处理频率40 kHz。处理后的浆料,经浮选和洗涤脱墨,白度可达83.6%ISO,残余油墨浓度43.67 mg/kg,脱墨浆手抄片的物理强度得以明显提高。
MOW was treated with the association of solvent and ultrasonic, the deinking efficiency was evaluated. The experimental results showed the optimal condition as following： solvent extraction for 40 minutes, ultrasonic treatment at 40 ℃ for 10 minutes , the ultrasonic frequency is 40 kHz and the ultrasonic power is 300W. The brightness and residual ink concentration reached 83.6% and 43.67ppm respectively after the flotation and washing, and the strength properties of the handsheet made from the deinking pulp were increased obviously.
出处
《中国造纸学报》
EI
CAS
CSCD
2006年第2期31-35,共5页
Transactions of China Pulp and Paper
关键词
溶剂法
超声波
混合办公废纸
脱墨
solvent treatment
ultrasonic
mixed office wastepaper （MOW）
deinking
