HEDP作为纸浆H_2O_2漂白螯合剂的研究  

HEDP as chelating agent for hydrogen peroxide bleaching

作　　者：逄锦江[1] 刘忠[1] 惠岚峰[1] 蒋华朋[1] 宗娇娜[1] 

机构地区：[1]天津科技大学天津市制浆造纸重点实验室,天津300457

出　　处：《中华纸业》2012年第14期27-30,共4页China Pulp & Paper Industry

摘　　要：以桉木硫酸盐浆为原料,采用ODHTEOPQP漂序进行漂白,研究了羟基乙叉二膦酸作为Q段螯合剂的应用。结果显示,螯合剂的最佳工艺条件是螯合温度80℃,保温时间90min,其用量为0.4%,pH值为4.35。与DTPA和EDTA的对比实验发现,其螯合效果相近,但因HEDP成本低,具有一定的优势。Eucalyptus kraft pulp was bleached with ODHTEOPQP sequence, and 1-hydroxy ethylidene-1,1-diphosphonic acid as the chelator in Q stage was investigated with the metbod of orthogonal experiment. Tile results show that the optimum condition of chelating stage is as follow： temperature 80℃. time 90min, HEDP dosage 0.4% on OD pulp, pH 3.5, in which conditions, the HEDP＇s chelating efficiency is similar to DTPA and EDTA, but it is more advantageous in cost.

关 键 词：桉木硫酸盐浆 羟基乙叉二膦酸 螯合剂 过氧化氢漂白 

分 类 号：TS727.1[轻工技术与工程—制浆造纸工程] TS745