Process and apparatus for the purification of substances

Details Process and apparatus for the purification of substances Process and apparatus for the purification of substances

1991-12-10

1992-09-22

Spear, Frank

Liquid purification or separation

Processes

Separating

210774, 210803, 2105321, B01D 4300

Patent

active

051494450

ABSTRACT:
A substance is provided in molten form and then converted into crystallized pellets. The pellets are conveyed into a vessel having an open lower end, whereby the pellets continuously advance downwardly. As the pellets advance, they are subjected to a hot gas flow which causes outer contaminated surfaces of the pellets to melt and drip off. The remaining pellets travel out through the opening in a direction transversely of the direction of the dripping. In this manner, the substance is purified.

REFERENCES:
patent: 3550925 (1970-12-01), Evans et al.

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