电解锰无铬钝化技术研究进展  

An Advance in Electrolytic Metal Manganese of Chromium-free Passivation Technology

作　　者：伍望 张超 杨绍泽 秦林 曹占芳 WU Wang;ZHANG Chao;YANG Shaoze;QIN Lin;CAO Zhanfang(Guizhou Wuling Manganese Industry Co., Ltd., Songtao, Guangxi 554115, China;Chongqing Wuling Manganese Industry Co., Ltd., Xiushan, Chongqing 409912, China;Hunan Provincial Key Laboratory of Manganese Resources Efficient and Clean Utilization, School of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China)

机构地区：[1]贵州武陵锰业有限公司,贵州松桃554115 [2]重庆武陵锰业有限公司,重庆秀山409912 [3]中南大学化学化工学院锰资源高效清洁利用湖南省重点实验室,湖南长沙410083

出　　处：《中国锰业》2021年第6期5-10,共6页China Manganese Industry

基　　金：国家自然科学基金面上项目(21776320);贵州省科技计划项目(黔科合支撑[2020]4Y043)。

摘　　要：电解锰行业普遍采用重铬酸钾作为电解锰片钝化剂,但重铬酸钾中的六价铬(Cr^(6+))有剧毒、易致癌,对人体和生态坏境都存在威胁,同时由此产生的含铬废水及含铬废渣也增加了企业的安全环保风险。因此,采用新型无铬钝化技术,尤其是研发高效、清洁无铬钝化剂势在必行。以钝化成膜物质性质将无铬钝化剂分为无机盐型、有机物型和无机盐/有机物复合型3大类,详细介绍了各类型无铬钝化剂的钝化机理、原料配比、应用条件、钝化效果及研发进展情况。同时,结合电解锰免钝化技术,为广泛、成熟替代铬酸盐钝化提供理论和技术支撑。It is general to use potassium heavy chromate as a passivator in electrolytic metal manganese industry.Hexavalent chromium in potassium chromate is a threat to human body and ecological bad environment,resulting in chromium-containing wastewater and chromium-containing waste residue,which increases the safety and environmental risks of enterprises.About the use of new chrome-free passivation technology,especially in the development of efficient,clean chromium-free passivation agent is imperative.The chromium-free passivants are divided into three categories of inorganic salt type,organic compound type and inorganic salt/organic compound type by the properties of the passivated film material.The passivation mechanism,including raw material ratio,application conditions,passivation effect and research and development progress of each type of non-chromium passivator,are introduced in detail,we think.At the same time,combined with electrolytic manganese passivation-free technology,it provides theoretical and technical support for extensive and mature alternative to chromate passivation.

关 键 词：电解锰 无铬钝化剂 免钝化 机理 研究进展 

分 类 号：TF792[冶金工程—钢铁冶金] TF803.27