Title: Low-temperature vacuum themal dissociation waste printed wiring board preprocessing method
Application Number: 200610113109 Application Date: 2006.09.15
Publication Number: 1919482 Publication Date: 2007.02.28
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: B09B3/00
Applicant(s) Name: Tsinghua University Address:
Inventor(s) Name: Li Jinhui;Yu Keli
Attorney & Agent:
Abstract:
    The invention discloses a predisposing method of low-temperature vacuum pyrolytic waste print circuit in the resource recycling technological domain, which comprises the following steps: placing waste print circuit board in the vacuum pyrolytic furnace, starting pyrolytic furnace to heat, starting vacuum pump, maintaining vacuum degree at 30-1000pa, stopping heating after the inner furnace temperature reaches 200-300 deg.c, insulating, cooling, grinding the waste print circuit board, sieving.
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