公开(公告)号：US6089479A

公开(公告)日：2000-07-18

申请号：US406726

申请日：1999-09-28

Applicant: Kuo-Ching Chang ,  Kuo-Jer Hwang ,  Gow-Guang Goan ,  Wei-Hsin Li

Inventor： Kuo-Ching Chang ,  Kuo-Jer Hwang ,  Gow-Guang Goan ,  Wei-Hsin Li

IPC: B03B9/06 ,  C22B7/00 ,  C22B15/00 ,  H05K3/22 ,  B02C19/00 ,  B02C19/12

CPC classification number: H05K3/22 ,  B03B9/061 ,  C22B15/0056 ,  C22B7/001 ,  H05K2203/178 ,  Y02P10/214 ,  Y02P10/22 ,  Y02P70/613 ,  Y02W30/521 ,  Y02W30/822 ,  Y10S241/38

Abstract: 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.

Abstract translation: 一种用无机盐的熔融混合物处理废印刷电路板的方法，包括以下动作：（1）将电路板放入包含在处理炉中的熔融无机盐中; （2）对电路板的铜箔进行破碎和搅拌以与之分离; （3）进一步搅拌以将箔与塑料和电路板的玻璃纤维分开; （4）用浮动残渣刮除装置刮去熔融无机盐上表面上的塑料和玻璃纤维的漂浮残渣; （5）收集碳化塑料残渣和玻璃纤维; （6）将生产过程中的废气转化为无害稳定的废气; 和（7）用去除装置规则地去除铜箔一定量。