氯化钙用于高得率浆H_2O_2漂前预处理  

CaCl_2 Pretreatment Prior to H_2O_2 Bleaching of High Yield Pulp

作　　者：梁富政[1] 石淑兰[2] 

机构地区：[1]大连轻工业学院,辽宁大连116034 [2]天津科技大学,天津300222

出　　处：《中国造纸》2003年第4期1-3,共3页China Pulp & Paper

摘　　要：研究了CaCl2用于高得率桦木浆H2O2漂前预处理的效果,并与DTPA、EDTA、H2SO4等预处理剂的预处理效果进行了比较。结果表明,CaCl2是一种优良的预处理剂。CaCl2预处理的适宜条件为:用量0.5%,pH值7,温度40℃,时间25min。This paper investigates the optimal condition of CaCl 2 pretreatment prior to the H 2 O 2 bleaching of high yield birch pulp and com-pares the effect of CaCl 2 pretreatment with DTPA,EDTA and H 2 SO 4 pretreatments in their optimal conditions.Results show that the opti-mal conditions of CaCl 2 pretreatment were as follows :CaCl 2 charge0.5%,pH7,temperature40℃and time 25min.The CaCl 2 as a very good pretreatment agent of high yield pulp bleaching is clearly proved.

关 键 词：氯化钙 高得率浆 漂白 预处理 纸浆 过氧化氢 

分 类 号：TS727.2[轻工技术与工程—制浆造纸工程]