发明名称 Recovering and sepg. material from used circuit boards
摘要 <p>Used electronic circuit boards are treated in order to recycle primary material by: (a) removing the electronic component from the board; (b) polishing the printed circuit board; (c) grinding the board surface and (d) sepg. ground material into mainly a Cu-contg. portion and mainly a non Cu portion.</p>
申请公布号 DE19619965(A1) 申请公布日期 1996.11.21
申请号 DE1996119965 申请日期 1996.05.17
申请人 NEC CORP., TOKIO/TOKYO, JP 发明人 YOKOYAMA, SADAHIKO, TOKIO/TOKYO, JP;IJI, MASATOSHI, TOKIO/TOKYO, JP
分类号 B09B5/00;B02C15/00;B09B3/00;B23K1/018;C22B7/00;H05K3/22;(IPC1-7):C22B7/00 主分类号 B09B5/00
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