废干电池制取锰锌铁氧体过程中锰的测定

Determination of Manganese in the Process of Preparing Manganese Zinc Ferrite from Waste Dry Batteries

利用废干电池制取锰锌铁氧体过程中需要准确测定锰含量。以硝酸银作催化剂,采用硫酸亚铁铵滴定法测定锰含量,并对氧化剂用量、硝酸银用量、铁锌的影响等进行了试验。结果表明,该法操作简单、快速准确,锰回收率为98.7%～102.8%。

Manganese content must be determined accurately in the process of preparing manganese zinc ferrite from waste dry batteries. A method is used to determine manganese content by titration of ammonium ferrous sulfate with silver nitrate as catalyst. Meanwhile, the dosage of oxidant and silver nitrate, as well as the effect on iron and zinc is tested. The results show that this method is simple, rapid and accurate. The recovery rate of manganese is in the range of 98.7%-102.8%.