Two step filter and process

Hazardous or toxic waste destruction or containment – Containment

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141 99, B09B 100

Patent

active

052849970

ABSTRACT:
A two-stage filtering process and a two-stage filter, with a first-stage coalescing filter separating and removing liquid paint droplets and solids from the gaseous contents of a spent aerosol container, and a second-stage filter removing the hazardous solvents from the gaseous mixture discharging from the first-stage filter.

REFERENCES:
patent: 3890123 (1975-06-01), Kuga
patent: 4759508 (1988-07-01), Griffith et al.
patent: 4921512 (1990-05-01), Maryyanek et al.
patent: 5022900 (1991-06-01), Bar-Yona et al.
patent: 5038815 (1991-08-01), Palmer
patent: 5061300 (1991-10-01), Alexander
patent: 5092527 (1992-03-01), Perry et al.

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