Methods and apparatus for separating cleaning solvents from rosi

Details Methods and apparatus for separating cleaning solvents from rosi Methods and apparatus for separating cleaning solvents from rosi

1981-04-22

1982-08-17

Sever, Frank

Distillation: processes, separatory

With measuring, testing or inspecting

202173, 203 71, B01D 302

Patent

active

043448259

ABSTRACT:
A contaminated solvent is first distilled in a distillation chamber (12) to drive off a substantial portion of the solvent which is condensed and recovered leaving a residual slurry (18) consisting of some solvent and the contaminants. A metering device (21) is cyclically operated to transfer precise amounts of slurry to a second distillation chamber where the slurry is deposited in an annular trough (26) formed in a heat plate (25). A spreader including a number of blades (27) moves the deposited slurry charge along the trough to an exit opening (44). The residual solvent in the slurry charge is vaporized, condensed and fed back into the first chamber (12). The remainder of the charge is exited through the trough opening (44) into a collection barrel (50) which is vented to pass back any solvent vapors to the second distillation chamber.

REFERENCES:
patent: 3156627 (1964-11-01), Ester
patent: 3313724 (1967-04-01), Kniel

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