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Synthesis of chlorine dioxide stable solution by combined reduction and its decomposition kinetics
Nordic Pulp & Paper Research Journal ( IF 1.2 ) Pub Date : 2020-09-25 , DOI: 10.1515/npprj-2020-0008
Minghui Qi 1 , Lijie Huang 1, 2 , Xiaofeng Xu 3 , Tan Yi 1 , Hao Xu 1 , Hanyu Zhao 1 , Chongxing Huang 1 , Shuangfei Wang 1 , Yang Liu 1
Affiliation  

Abstract Chlorine dioxide is classified by the World Health Organization as a fourth-generation A1, widely used, safe, and effective disinfectant. It is widely used in bleaching, water treatment, oil extraction, aquaculture, plants, fruits and vegetables, meat products, preservation of aquatic products, food sterilization and sterilization industries. The technology of chlorine dioxide produced by the combination reduction method is widely used in domestic papermaking related companies. In order to promote the application of chlorine dioxide, the effects of storage conditions on the stability of chlorine dioxide solution prepared by the combination reduction method and the experimental study of decomposition kinetics were studied. Experiments have shown that high temperature, high pH and high initial concentration accelerate the decomposition of chlorine dioxide solution, and the addition of sodium dihydrogen phosphate (NaH2PO4) and dimethyl sulfoxide (DMSO) can inhibit the decomposition of chlorine dioxide. The kinetic experiments showed that the decomposition rate of chlorine dioxide was secondary to ClO2 and was −0.406 for [ H + ][{\mathrm{H}^{+}}]. The apparent activation energy of chlorine dioxide solution decomposition reaction was 26.7 kJ·mol−1, and the decomposition rate equation of chlorine dioxide was established.

中文翻译:

复合还原法合成二氧化氯稳定溶液及其分解动力学

摘要 二氧化氯被世界卫生组织列为第四代A1级消毒剂,用途广泛、安全有效。广泛应用于漂白、水处理、榨油、水产养殖、植物、果蔬、肉制品、水产品保鲜、食品杀菌杀菌等行业。联合还原法生产二氧化氯的技术在国内造纸相关企业得到广泛应用。为促进二氧化氯的应用,研究了储存条件对组合还原法制备的二氧化氯溶液稳定性的影响,并进行了分解动力学实验研究。实验表明,高温,高pH值和高初始浓度会加速二氧化氯溶液的分解,加入磷酸二氢钠(NaH2PO4)和二甲亚砜(DMSO)可以抑制二氧化氯的分解。动力学实验表明,二氧化氯的分解速率次于二氧化氯,对于[ H + ][{\mathrm{H}^{+}}]为-0.406。二氧化氯溶液分解反应表观活化能为26.7 kJ·mol-1,建立二氧化氯分解速率方程。406 [ H + ][{\mathrm{H}^{+}}]。二氧化氯溶液分解反应表观活化能为26.7 kJ·mol-1,建立二氧化氯分解速率方程。[ H + ][{\mathrm{H}^{+}}] 为 406。二氧化氯溶液分解反应表观活化能为26.7 kJ·mol-1,建立二氧化氯分解速率方程。
更新日期:2020-09-25
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