Crushed fluorescent tube particulate separation and recovery met

Details Crushed fluorescent tube particulate separation and recovery met Crushed fluorescent tube particulate separation and recovery met

1993-03-16

1995-02-14

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 24, 241 57, 241 60, 241 99, 2411018, B02C 1912

Patent

active

053887735

ABSTRACT:
The separation of potentially toxic phosphor compounds from fractured glass particulates derived from crushing used fluorescent light tubes is improved by continuously mixing the fractured glass particulates together in surface contact with each other to abrade the toxic phosphors from the surfaces of the glass particulates followed by separation by air stripping of the small phosphor particles from the fractured glass particulates. The stripping usually is done in a separate stripping chamber. The mixing and abrading may be accomplished in a variety of mixing devices including auger-type apparatus, rotary chambers, fluosolids reactors and others.

REFERENCES:
patent: 2910508 (1975-10-01), Stauffer et al.

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