催化剂对电化学漂白的影响  

Influence of Catalyst Concentration on Electrochemical Bleaching

作　　者：马志君[1] 欧义芳[1] 闫冰[1] 

机构地区：[1]中国科学院广州化学研究所纤维素化学重点实验室,广东广州510650

出　　处：《纤维素科学与技术》2003年第3期35-39,54,共6页Journal of Cellulose Science and Technology

摘　　要：以二氧化铅为阳极、不锈钢为阴极,以铁氰化钾为催化剂对硫酸盐苇浆进行了电化学漂白研究。通过对铁氰化钾用量与纸浆粘度、卡伯值和白度的关系的研究,得出了铁氰化钾的最佳用量是12.50 mmol/L,并对铁氰化钾在电化学漂白中存在最佳用量的机理进行了探讨。Electrochemical bleaching of reed kraft pulp employing a graphite plate anode and a stainless steel screen cathode was carried out by adding K3Fe(CN)6 as catalyst. The optimum concentration of ferricyanide is 12.50 mmol/L for electrochemical bleaching by studying its influence on pulp Kappa number and viscosity. The reaction mechanism of K3Fe(CN)6 in electrochemical bleaching was also discussed.

关 键 词：催化剂 电化学漂白 二氧化铅 铁氰化钾 纸浆漂白 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]