纸浆漂白中H_2O_2稳定性的研究进展  

Research Progress of Stabilizing Hydrogen Peroxide in Pulp Bleaching

作　　者：苗庆显[1,2] 侯庆喜[1] 李正莲 秦梦华[2] 

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 [2]山东轻工业学院制浆造纸教育部重点实验室,山东济南250353 [3]山东轻工业设计院,山东济南250100

出　　处：《造纸化学品》2009年第1期17-23,共7页Paper Chemicals

摘　　要：在制浆造纸中,H2O2被用于纸浆的漂白和脱除木素。过渡金属离子,如铁离子、锰离子和铜离子加剧了H2O2的分解,导致有效H2O2的损失和纸浆强度的下降。为了控制这一问题,必须采取某些措施。该文对于纸浆漂白过程中过氧化氢稳定性的最新研究进行了综述。同时论述了漂白过程中传统稳定剂的作用机理和过渡金属离子引起H2O2分解的机理。另外,讨论了利用螯合剂除去过渡金属离子的最新进展。Hydrogen peroxide is used in the bleaching and delignification of pulps. Transition metals such as Fe, Mn and Cu catalyze the decomposition of hydrogen peroxide leading to the loss of active hydrogen peroxide and decrease of pulp strength.Some measure must be adopted to control this problem.This article reviews the new research of stabilizing hydrogen peroxide in pulp bleaching.The stabilizing mechanisms of conventional stabilizers and the catalyzed decomposition mechanisms by transition metals for hydrogen peroxide in pulp bleaching are expounded. In addition, the recent developments in metal removal by chelating agents are discussed.

关 键 词：过氧化氢漂白 稳定剂 螯合剂 漂白机理 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]