TREATMENT OF AMMONIACAL COPPER ETCHANTS

被引：10

作者：

MELLING, J

机构：

[1] Dep of Trade & Industry, Stevenage, Engl, Dep of Trade & Industry, Stevenage, Engl

来源：

RESOURCES AND CONSERVATION | 1986年 / 12卷 / 02期

关键词：

AMMONIUM COMPOUNDS - COPPER AND ALLOYS - Recovery - PRINTED CIRCUITS - Manufacture - WASTEWATER - Treatment;

D O I：

10.1016/0166-3097(86)90021-0

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This paper reviews methods for the regeneration of spent etchants with co-recovery of a saleable copper product. Whilst large volume flows of spent etchant are regenerated commercially, there is a need for methods appropriate to on-site treatment by the smaller printed circuit board producer. Experimental developments designed to meet this need, using either supported liquid membranes impregnated with a diketone extractant or an electrochemical cell divided by solid ion exchange membrane, are described. The performance of the ion exchange membranes tested in the membrane cell was found to be inadequate for this application.

引用

页码：113 / 124

页数：12