期刊论文

中文

广东化工

1007-1865

2014

41

15

44-45+29

10.3969/j.issn.1007-1865.2014.15.021

本校为第一机构

实验研究了不同反应条件的铁沉降效率及锌、镉损失率.结果表明,氧气做氧化剂pH为3.0～3.5时,反应7h后,铁沉降效率不高,仅达到34％,锌、镉损失率随反应时间的增加而增加.铁沉降效率随pH及温度的升高而增大,SEM和XRD分析表明,pH为3.0时的沉铁渣中主要成分是针铁矿.

Efficiency of iron precipitation and zinc, cadmium loss were studied in different reactive conditions. The results showed that iron precipitation rate was not high and reached only 34 % when oxygen was used as oxidant and pH is between 3.0 and 3.5 after 7 h＇ reaction. The iron precipitation rate and zinc, cadmium loss increased with the increasing of pH and temperature. SEM and XRD analysis presented that the main con...