摘要
对新型漂白剂甲脒亚磺酸(FAS)漂白碱性过氧化氢化机浆(APMP)进行了实验研究,探讨了FAS用量、NaOH和FAS用量比、浆浓、漂白温度和时间对漂后纸浆白度的影响,得出了该漂白过程的最佳工艺条件:FAS用量0.6％,FAS与NaOH用量比2,漂白时间60min,漂白温度70℃,漂白浆浓10％。漂后纸浆白度可达62.3％(SBD),白度增值9.2％(SBD)。 同时还对Na_2S_2O_4、H_2O_2用于单段漂白进行了研究,从纸浆白度、强度、废水污染负荷和工艺条件等方面与FAS漂白效果进行了比较,进一步证明FAS是一种较清洁和经济的新型漂白剂。
Bleaching of paplor APMP with formamidine sulphinic acid (FAS) was investigated in this paper. The effects of FAS charges, ratio of treatment on the brightness gain, color reduction and pulp strength were studied.
The results of best bleaching with FAS single-stage showed:when the bleaching was done at 10% pulp consistency,60 min and 70℃ and an FAS solution containing 0. 6% (on 0. d. pulp) ,ratio of NaOH to FAS was 2,we got the bleached pulp:brightness 62. 3%(SBD). There was a little investigation on bleaching of paplor APMP with H2O2 and Na2S2O4 in the paper too.
出处
《西北轻工业学院学报》
2002年第6期17-20,共4页
Journal of Northwest University of Light Industry
