模拟磷矿浮选废水中各因素对复配缓蚀剂性能的影响  

Effects of Different Factors in Simulated Phosphorite Floatation Wastewater on the Performance of Compound Corrosion Inhibitor

作　　者：孟亚鸽 刘志红[1,2,3] 王东东 MENG Yage;LIU Zhihong;WANG Dongdong(School of Mining, Guizhou University, Guiyang, Guizhou 550025, China;National ＆ Local Joint Laboratory of Engineering for Effective Utilization of Regional Mineral Resources from Karst Areas, Guiyang, Guizhou 550025, China;Guizhou Key Laboratory of Comprehensive Utilization of Non-metallic Mineral Resources, Guiyang, Guizhou 550025, China)

机构地区：[1]贵州大学矿业学院,贵州贵阳550025 [2]喀斯特地区优势矿产资源高效利用国家地方联合工程试验室,贵州贵阳550025 [3]贵州省非金属矿产资源综合利用重点试验室,贵州贵阳550025

出　　处：《矿业研究与开发》2018年第4期27-34,共8页Mining Research and Development

基　　金：国家科技支撑计划项目(2013BAC15B01);贵州大学研究生创新基金(院研20160107)

摘　　要：试验分析了复配缓蚀剂在模拟磷矿浮选废水中对碳钢的缓蚀作用,主要考察了Ca^(2+)、Mg^(2+)、SO_4^(2-)、Cl^-、F^-以及时间和转速对碳钢的腐蚀作用和缓蚀剂的缓蚀作用。极化曲线表明,复配缓蚀剂是以阴极为主的混合型缓蚀剂;失重法显示复配缓蚀剂在95r/min的转速下具有较好的缓蚀效果,但使用周期比较短,同时在各个离子浓度不是太高的情况下,复配缓蚀剂对各离子浓度有较好的适应性。The corrosion inhibition effects of compound corrosion inhibitor on carbon steel in simulated phosphate wastewater were mainly investigated. The effects of different factors on the corrosion of carbon steel and the corrosion inhibition of corro- sion inhibitor were emphatically studied, including ions including Caz＋ , Mgz＋ , SO4z- , CI- and F- , as well as the time and rotational speed, The polarization curves showed that the compound corrosion inhibitor was a cathode-based mixed corrosion in- hibitor. And the weight loss method indicated that the corrosion inhibitor had a good corrosion inhibition effect at the rotational speed of 95 r/min, but the service cycle was relatively short. Meanwhile, the corrosion inhibitor had a good adaptability on each ion concentration when the concentrations of all ions were not too high.

关 键 词：模拟磷矿浮选废水 碳钢 复配缓蚀剂 极化曲线 

分 类 号：X751[环境科学与工程—环境工程]