Solid material comminution or disintegration – Processes – With classifying or separating of material
Patent
1996-12-23
2000-05-09
Husar, John M.
Solid material comminution or disintegration
Processes
With classifying or separating of material
241 2415, 241 2422, 241 29, 241 791, 241 99, 241DIG38, B02C 1912, B02C 2308
Patent
active
060592060
ABSTRACT:
The present invention relates to a process and apparatus for the separation of materials from within fluorescent lamps and other mercury containing commercial elements. The process and apparatus can separate materials of different compositions by non-chemical means into easily treatable segments without causing significant introduction of wastes (especially mercury waste) into the environment during physical separation. This invention operates by repeatedly crushing and breaking the original article (e.g., the fluorescent lamp) into progressively smaller pieces under controlled circumstances and controlled air pressure so that their various component materials are separately collected and these separately collected components may be individually processed (recycled or purified) without significant introduction of mercury into the environment. The location of venting means and negative air pressure draw path proximally away from the final position of material flow by itself can significantly increase recovery of mercury in the waste stream.
REFERENCES:
patent: 5388773 (1995-02-01), Perry
patent: 5395056 (1995-03-01), Perry
patent: 5492278 (1996-02-01), Raboin
patent: 5586730 (1996-12-01), Mortrud
patent: 5683041 (1997-11-01), Sewill et al.
Husar John M.
Mercury Waste Solutions, Inc.
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