Recycling of CIS photovoltaic waste

Details Recycling of CIS photovoltaic waste Recycling of CIS photovoltaic waste

1997-05-12

1998-07-14

Gorgos, Kathryn L.

Electrolysis: processes, compositions used therein, and methods

Electrolytic synthesis

Preparing single metal

205557, 205575, 205580, 75743, C25C 100, C25C 124, C25C 112, C21B 1500

Patent

active

057798770

ABSTRACT:
A method for extracting and reclaiming metals from scrap CIS photovoltaic cells and associated photovoltaic manufacturing waste by leaching the waste with dilute nitric acid, skimming any plastic material from the top of the leaching solution, separating glass substrate from the leachate, electrolyzing the leachate to plate a copper and selenium metal mixture onto a first cathode, replacing the cathode with a second cathode, re-electrolyzing the leachate to plate cadmium onto the second cathode, separating the copper from selenium, and evaporating the depleted leachate to yield a zinc and indium containing solid.

REFERENCES:
patent: 3506550 (1970-04-01), Knapp, Jr.
patent: 5211818 (1993-05-01), Moure, Jr. et al.

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