四乙酰乙二胺(TAED)对稻草高得率浆双氧水漂白的影响  

Effect of Hydrogen Peroxide Bleaching for High Yield of Straw Pulp by Using TAED

作　　者：任国庆[1] 汪仕林[2] 

机构地区：[1]黑龙江省造纸工业研究所,黑龙江牡丹江157013 [2]东北林业大学生物质资源利用教育部重点实验室,黑龙江哈尔滨150040

出　　处：《黑龙江造纸》2012年第3期8-12,共5页Heilongjiang Pulp & Paper

摘　　要：研究了四乙酰乙二胺(TAED)作为活化剂对稻草高得率浆双氧水漂白的活化效果,并在TAED的作用下以漂后白度为指标考察不同条件对活化效果的影响,以此确定最佳漂白条件。结果表明:最佳漂白工艺为浆浓10%,时间30min,温度70℃,TAED与H2O2摩尔比0.5,NaOH用量4%,H2O2用量6%,Na2SiO3用量3%,MgSO4用量0.05%;在该条件下,漂后浆的白度值为52.4%ISO,比原浆白度增加值可达38.6%ISO,比单纯的H2O2漂白提高了7.8%ISO。This research is about the activated etlect ot straw lalgla yleld putp oI nyarogen peroxme bleaching under tetraacetylethylenediamine （TAED） as activator, and the whiteness after bleaching as an indicator to look at different conditions on the effect of activation, based on this to determine the best bleaehing conditions. The best bleaching process showed that： pulp concentration 10%, bleach- ing time 30min, reaction temperature 70 ℃, molar ratio of TAED to HzO2 0.5, amount of NaOH4 %, dosage of H202 6%, amount of Na2SiOa 3%, amount of MgSO4 0.05%. In this conditions, the white ness of pulp after bleaching is 52.4%ISO, the added percentage of whiteness than the puree up to 38. 6%ISO, and than the simply HzOz bleaching up to 7.8%ISO.

关 键 词：稻草高得率浆 TAED 活化剂 漂白 

分 类 号：TS713[轻工技术与工程—制浆造纸工程]