脱墨浆漂白过程中DCS的溶出及漆酶控制  

Release of DCS and Laccase Treatment during Bleaching Process of ONP

作　　者：牟洪燕[1] 詹怀宇[1] 付时雨[1] 詹瑶[1] 

机构地区：[1]华南理工大学制浆造纸工程国家重点试验室,广州510640

出　　处：《纸和造纸》2009年第5期24-28,共5页Paper and Paper Making

基　　金：国家自然科学基金(20676047;30771689);广东省科技计划(2007B031600002)资助项目

摘　　要：废新闻纸浆漂白过程中会有大量DCS溶解到浆水体系中,实验发现增加NaOH和H2O2用量会促进其溶出,在漂白过程中采用漆酶处理DCS物质,有利于提高纸张物理性能,ESCA对酶处理后纸张表面的化学成分分析发现表面木素和抽出物含量降低。During the process of ONP deinked pulp bleaching, with the increase of NaOH and H2O2 dosage, there was effect on the release of anionic trash. This article researched on the mechanism during the bleaching process of the old newspaper pulp. Surface chemical composition and morphology of the fibers of ONP deinked pulp were studied by Electron Spectroscopy for Chemical Analysis （ESCA）,ESCA results showed that O/C ratio of laeease treated ONP pulp increased, and surface lignin coverage and extractive content decreased as compared with the control pulp.

关 键 词：ONP DCS 漂白 漆酶 ESCA 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]