Treatment of mercurial waste

Details Treatment of mercurial waste Treatment of mercurial waste

1988-03-30

1989-06-20

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With classifying or separating of material

241 25, 241 99, B02C 1914

Patent

active

048403148

ABSTRACT:
A method for separating mercurial waste from scrapped gas discharge lamp bulbs and other mercury-containing lamps. Expanded, broken lamps are crushed and conveyed to a vibrating screen. The crushed material is shaken on a sieve-cloth having a mesh width of 0.2-1.0 mm, preferably 0.25 mm, for at least 1-3 minutes. The major part of the crushed material remains on the screen and is removed therefrom as mercury-free waste (Hg-content<10 ppm), whereas substantially all the mercury present is found in the finer fraction which passes through the screen.

REFERENCES:
patent: 2628036 (1953-02-01), Hall

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