OXALATE FORMATION DURING HYDROGEN PEROXIDE REINFORCED OXYGEN DELIGNIFICATION
The effects of various process parameters(alkali dosage,hydrogen peroxide dosage,temperature,time,and oxygen pressure)of hydrogen peroxide reinforced oxygen delignification treatment on the oxalate formation of Eucalyptus kraft pulp were investigated in this study.Results showed that almost linear relationships were seen between oxalate formation and the dosages of both alkali and peroxide.Oxalate formation process can divide into “fast and “slow periods.Furthermore,oxalate content in the effluent increased as temperature rose from 80 ℃ to 100 ℃,and then was stable.Additionally,the oxygen pressure was not a significant parameters compared to other parameters.These results would be highly helpful in optimizing peroxide reinforced oxygen delignification process,controlling the oxalate formation,and improving the product quality.
Liu Yingying Ge Shujuan Li Youming Li Bingyun Li Hailong
State Kay Laboratory of Pulp and Paper Engineering,South China University of Technology Guangzhou,510640,China
国际会议
第五届制浆造纸新技术国际研讨会(ISETPP)暨第三届国际造纸与环境学术大会(IPEC)
广州
英文
1-5
2016-11-07（万方平台首次上网日期，不代表论文的发表时间）