DISSOLUTION OF PASTES IN LEAD-ACID-BATTERY RECYCLING PLANTS

被引：14

作者：

MAJA, M ^{[1
]}

BODOARDO, S ^{[1
]}

SERRACANE, C ^{[1
]}

BAUDINO, R ^{[1
]}

机构：

[1] GINATTA SPA, TURIN, ITALY

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 1993年 / 23卷 / 08期

关键词：

D O I：

10.1007/BF00249955

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The dissolution of the active materials of lead-acid batteries in fluoboric electrolyte has been studied. The use of redox couples such as Ti3+/Ti4+ is proposed for an efficient and quick dissolution of lead and lead dioxide mixtures. For PbO2 and Pb electrodeposited on platinum electrodes the rate of dissolution in HBF4 (200 g dm-3) containing Ti ions (0.3 M) corresponds to a current density of 400 A cm-2 and 160 A cm-2, respectively. Dissolved oxygen has a marked influence on lead dissolution acting as an oxidizer of Ti3+ to Ti4+. It has also been shown that the Fe2+/Fe3+ couple can be used, although with lower benefits. For industrial applications, a concentration of Ti ions of about 0.05 m and the use of a counter-current electrolyte flow in the electrolysis cell can advantageously accomplish the leaching process of pastes and slimes in a batteries recycling plant.

引用

页码：819 / 826

页数：8

共 12 条

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