金属离子及非硅稳定剂对化学机械浆漂白过程中过氧化氢稳定性的影响  

Effect of Metal Ion and Non-silicon Stabilizer on the Stability of Hydrogen Peroxide in Chemi-mechanical Pulp Bleaching Process

作　　者：刘潇潇 谢青宇 杨磊 查汪敏 吴晓敏 LIU Xiaoxiao;XIE Qingyu;YANG Lei;ZHA Wangmin;WU Xiaomin(Zhejiang Transfar Whyyon Chemical Co.,Ltd.,Hangzhou,Zhejiang Province,311231)

机构地区：[1]浙江传化华洋化工有限公司,浙江杭州311231

出　　处：《中国造纸》2024年第9期103-107,共5页China Pulp & Paper

摘　　要：本研究主要探讨了Ca^(2+)、Mg^(2+)、Fe^(3+)、Cu^(2+)、Mn^(2+)5种金属离子和6种非硅稳定剂对化学机械浆漂白过程中残余H_(2)O_(2)含量的影响。结果表明,Ca^(2+)、Mg^(2+)可以提高残余H_(2)O_(2)含量,Fe^(3+)、Cu^(2+)、Mn^(2+)降低了残余H2O2含量,且降幅明显。非硅稳定剂中羟基亚乙基二膦酸(HEDP)的钙铁螯合值最大,钙螯合值为434.0 mg/g,铁螯合值为243.6 mg/g。当Mn^(2+)质量浓度为1 mg/kg时,二乙烯三胺五亚甲基膦酸(DTPMP)在漂白过程中能够很好地抑制H_(2)O_(2)的无效分解,残余H_(2)O_(2)含量最高为4.0%,浆料白度最好为69.9%。The effects of five metal ions(Ca^(2+),Mg^(2+),Fe^(3+),Cu^(2+),and Mn^(2+))and six non-silicon stabilizers on residual H_(2)O_(2)content in chemimechanical pulp bleaching process were studied.The results showed that Ca^(2+)and Mg^(2+)could increase the residual H_(2)O_(2)content,while Fe^(3+),Cu^(2+),and Mn^(2+)reduced the residual H_(2)O_(2)content significantly.The calcium and iron chelation values of hydroxyethyl diphosphonic acid(HEDP)were the highest in non-silicon stabilizer,with calcium chelation value of 434.0 mg/g and iron chelation value of 243.6 mg/g.Di‐ethylenetriamine pentamethylene phosphonic acid(DTPMP)could effectively inhibit the ineffective decomposition of H_(2)O_(2)in the bleaching process,the residual H_(2)O_(2)content was up to 4.0%,and the whiteness of the pulp was 69.9%,when Mn^(2+)mass concentration was 1 mg/kg.

关 键 词：金属离子 非硅稳定剂 螯合值 残余H_(2)O_(2)含量 漂白效果 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]