Cleanenv' Engineeering Consultant Co., Ltd.

Cleanevi' Engineering Consultant Co., Ltd.

Kuo-Ching Chang

Chin-Chih Tai

Wei-Hsin Li

Kuo-Jer Hwang

Sen-Chi Lee

Gow-Guang Goan

A method for treating waste printing circuit boards with molten mixture of inorganic salts comprising actions of: (1) putting the circuit boards into the molten inorganic salts contained in a treating furnace; (2) crushing and stirring for copper foil of the circuit boards to be separated therefrom; (3) further stirring to separate the foil from the plastic and the glass fiber of the circuit boards; (4) scraping the floating residues of the plastic and the glass fiber on upper surface of the molten inorganic salts with a floating residues scraping device; (5) collecting the carbonized plastic residues and the glass fiber; (6) converting waste gas produced in the process into an unharmful and stable one; and (7) removing the copper foil by a certain amount regularly with a removing device.

Method for treating waste printed circuit boards with molten mixture of

A method and a device for treating waste printed circuit boards with molten tin include process of throwing printed circuit boards into a molten tin bath in treating furnace, letting the boards proceed crashing, stirring and carbonizing treatment for separating copper foil, thermosetting plastic and glass fiber. Then these three kinds of materials are respectively separated from each other by taking advantage of their different specific gravity and collected in separate tanks to recover copper and other metals from the waste printed circuit boards.

Method of recycling waste printed circuit boards

Growing community of inventors

Kaohsiung, Taiwan

Kuo-Ching Chang