Electric heating – Metal heating – By arc
Patent
1994-05-25
1997-05-06
Paschall, Mark H.
Electric heating
Metal heating
By arc
21912136, 21912143, 21912157, 110242, 110346, 588212, 588900, B23K 1000
Patent
active
056262493
ABSTRACT:
A method for the treatment of waste matter by plasma action. A plurality of electrode structures are positioned to define a reaction zone associated with the inter-electrode space. The inter-electrode space is conditioned (as by preionizing) and a series of discrete electrical discharges are produced throughout the reaction zone. In a preferred embodiment, the reaction zone is subjected to a sequence of discrete electrical discharges in a time interval less than the residence time of material to be treated within the reaction zone such that the waste material is pyrolyzed during its transit through the reaction zone.
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Vrchota, Stephen Anthony, "Use of the Sustained Shockwave Plasma Reactor for the Recovery of Metals From Electric Arc Furnace Dust," masters thesis, University of Minnesota, Minneapolis, MN., Apr. 1991.
Hepworth, Malcolm T., Tylko, J.K. and Han, Hua, "Treatment of Electric Arc Furnace Dust With a Sustained Shockwave Plasma Reactor," Waste Management & Research, 11, 1993, pp. 415-427.
Paschall Mark H.
Refranco Corp.
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