海带漂烫水中碘的空气吹出法提取工艺研究  

Research of iodine extraction process by air blow-out method from kelp blanching waste water

作　　者：张加幸 于跃芹[1] 

机构地区：[1]青岛科技大学化学与分子工程学院,山东青岛266042

出　　处：《无机盐工业》2016年第5期27-29,共3页Inorganic Chemicals Industry

基　　金："十二五"海洋领域国家科技支撑计划(2013BAB01B03);中国水产科学研究院黄海水产研究所基本科研业务费专项资金项目(20603022013031)

摘　　要：采用空气吹出法研究了海带漂烫水中碘的提取工艺,并通过3因素4水平正交实验对体系的p H、温度、空气通量等工艺条件做了优化,同时探讨了不同氧化剂(Na NO2-H2O2、Na Cl O和Na NO2)对碘吹出效果的影响。实验得到空气吹出法提取海带漂烫水中碘的最佳工艺条件:p H=2、温度为70℃、空气进量为2 L/min,此时碘的最终吹出率可达96.2%。在最佳工艺条件下,分别采用Na NO2-H2O2、Na Cl O和Na NO2作为氧化剂时,碘的吹出率均可达到90%,表明氧化剂种类对该工艺条件无显著影响。The air blow-out method was utilized to exact iodine from kelp blanching waste water and the experimental conditions,such as p H,temperature,and air flow,were optimized with 3 factors and 4 levels orthogonal tests to improve the iodine exaction rate.In addition,the effects of different oxidizers（Na NO2-H2O2,Na Cl O,and Na NO2） under the optimized conditions were investigated.Results showed that the optimum reaction conditions were p H of 2.0,temperature of 70 ℃,and air blow-in of 2 L/min.Under the optimized conditions,the exaction rate was up to 96.2%.There is no significant difference on the oxidizing effect among three oxidizers,and the exaction rate all could be up to 90%.Therefore,oxidizing agent′s kind had no obvious effect on the reaction.

关 键 词：海带漂烫水 碘 吹出 氧化反应 

分 类 号：TQ124.61[化学工程—无机化工]