机构地区: 华南理工大学轻工与食品学院制浆造纸工程国家重点实验室
出 处: 《中国造纸学报》 2006年第2期31-35,共5页
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.
领 域: [轻工技术与工程]