从废铁屑电解制备纯铁及其腐蚀特性  

Pure Iron Electrolyzed from Scrap Iron Chips and its Corrosion Characteristics

作　　者：曹为民[1] 印仁和[1] 严惠根[1] 叶志强[1] 

机构地区：[1]上海大学理学院化学系,上海200436

出　　处：《电化学》2003年第1期93-97,共5页Journal of Electrochemistry

基　　金：国家重点化学工程联合实验室 (W0 70 3 )资助

摘　　要：　以工业废铁屑作原料制备高纯度电解铁,并优化了在氯化物溶液中的电解工艺条件,所得样品纯度最高可达到99.983%.通过SEM断面形貌观察,该电解铁样品非常致密.交流阻抗及腐蚀速率测定表明,电解铁的纯度越高,其耐腐蚀性能越好.The high purity electrolytic iron was made from scrap iron chips. Electrolytic conditions of pure iron were determined in chloride baths and the highest purity was 99.983% by chemical analysis. Pure iron had very compact texture and high mechanical strength by SEM figures of cross section. In deaerated 0.5 kmol·m-3H2SO4 and 0.5 kmol·m-3NaCl solutions, the corrosion rate of iron decreased with increasing purity.

关 键 词：废铁屑 纯铁 电解 制备 腐蚀特性 SEM 电解铁 

分 类 号：X757[环境科学与工程—环境工程]