竹浆碱回收白泥白度稳定性研究  

Study on the Stability of Whiteness of White Mud From Bamboo Pulp Alkali Recovery

作　　者：刘羚[1] 王建[1,2] 张丹[1] 

机构地区：[1]陕西科技大学轻工与能源学院,陕西西安710021 [2]陕西省造纸技术及特种纸品开发重点实验室,陕西西安710021

出　　处：《纸和造纸》2014年第7期28-30,共3页Paper and Paper Making

基　　金："十二五"国家科技支撑项目(2012BAD23B0201);陕西科技大学研究基金项目(BJ12-16);陕西省科技厅重点实验室项目

摘　　要：分析竹浆碱回收白泥白度的稳定性,以研究竹浆白泥发绿的原因。结果表明:竹浆碱回收白泥白度不稳定,易产生发绿现象,绿液中S、Fe元素对白泥白度影响较大;竹浆绿液中的铁主要以Fe2+形式存在,在碱性条件下,与绿液中的S2-发生反应生成某种有色物质是导致白泥发绿的主要原因。This paper analyzed the stability of whiteness of white mud from bamboo pulp alkali recovery, studied the reason for white mud greenish. The results showed that： the white mud whiteness from bamboo pulp alkali recovery is not stable, it is easy to produce greenish phenomenon, the sulfur, iron element in the green liquid had a great influence to the mud whiteness. The iron mainly exists in the form of Fe^2＋, it can react with the S^2- in the green liquor in alkaline conditions and generate some non-ferrous material, this is the main reason for white mud greenish.

关 键 词：竹浆白泥 白度 稳定性 

分 类 号：X793[环境科学与工程—环境工程] TS727[轻工技术与工程—制浆造纸工程]