Extraction and separation of Cd and Te from cadmium telluride photovoltaic manufacturing scrap

被引：58

作者：

Fthenakis, VM ^{[1
]}

Wang, W ^{[1
]}

机构：

[1] Brookhaven Natl Lab, Dept Environm Sci, Photovoltaic Environm Hlth & Safety Res Ctr, Upton, NY 11973 USA

来源：

PROGRESS IN PHOTOVOLTAICS | 2006年 / 14卷 / 04期

关键词：

photovoltaics; recycling; cadmium; tellurium; ion-exchange; leaching;

D O I：

10.1002/pip.676

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The extraction and separation of cadmium, tellurium, and copper from CdTe PV module scrap was investigated. Several leaching technologies were assessed and the extraction of CdTe from samples of PV modules was optimized for maximum efficiency and minimum cost. A dilute aqueous solution of hydrogen peroxide and sulfuric acid was sufficient to completely leach out cadmium and tellurium from these samples. The same method successfully removed cadmium and tellurium from actual manufacturing scrap; copper was partially extracted. Subsequently, cation-exchange resins were used to separate cadmium and copper from tellurium. Complete separation (ie., 99,99%) of Cd from Te was accomplished. The estimated costs of these processes for 10 MW/year processing are about 2 cents per W. Copyright (C) 2006 John Wiley & Sons, Ltd.

引用

页码：363 / 371

页数：9

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