EFFECT OF HEAT-DISPERSING ON STATUS OF STICKY SUBSTANCES

摘要：

In this paper, effect of heat-dispersing on sticky substances was studied under different conditions including varying temperature, disc clearance and pulp consistency. Sticky substances were quantitatively investigated and categorized into macro-, mini- and micro-stickies as well as dissolved and colloid substances. Meanwhile, their removal in post-floatation was evaluated. The results showed that raising temperature, reducing disc clearance or increasing pulp consistency improved significantly the dispersion of sticky substances. Under temperature of 100℃, disc clearance of 0.3 mm and pulp consistency of 30％, macro- and mini-stickies decreased by 92％ and 83％, respectively. Due to being dispersed to smaller sizes, removal of mini- and micro-stickies was enhanced in post-floatation to 25％ ~26％ and 68％~70％, respectively. Only small amount of DCS were removed in floatation.

关键词： heat dispersing mini-stickies micro-stickies dissolved and colloidal substances post-floatation

作者: Hailong Yu Yang Gao Fengshan Zhang Menghua Qin

作者单位: Key Laboratory of Paper Science and Technology of Ministry of Education, Shandong Polytechnic Univer Key Laboratory of Paper Science and Technology of Ministry of Education, Shandong Polytechnic Univer Huatai Group Co. Ltd., Guangrao, Shandong, 257335,China

会议类型: 国际会议

会议名称: 16th International Symposium on Wood,Fiber and Pulping Chemistry(第十六届木材、纤维及制浆化学国际会议)

会议地点: 天津

会议语种:英文

页码: 1212-1217

在线出版日期: 2011-06-08（万方平台首次上网日期，不代表论文的发表时间）