Method and apparatus for controlled separation of substances by

Details Method and apparatus for controlled separation of substances by Method and apparatus for controlled separation of substances by

1976-03-24

1977-06-28

Bashore, S. Leon

Cleaning and liquid contact with solids

Processes

Including work heating or contact with combustion products

110 8A, 134 38, B08B 500

Patent

active

040323617

ABSTRACT:
A method for controlled separation of substances by heating, e.g. for removing paint or other coatings on scrap metal, includes heating in an oven chamber the material from which one or more substances are to be separated to a temperature sufficiently high to provide evaporation of the substances to be separated, by means of a circulating gas. The gas is circulated from the oven chamber to a combustion chamber, where it is burned, and then to a large extent recirculated back to the oven chamber. The burning in the combustion chamber is intended to facilitate the destruction or collection of harmful substances emitted in the oven chamber and generates the heat necessary for providing and sustaining the desired temperature in the oven chamber. Controlling the recirculating gas stream will provide close control of the separation process in the oven chamber and, thus, facilitate the cleaning of the gas quantity diverted from the combustion chamber to the atmosphere. An oven for carrying out this method is also disclosed.

REFERENCES:
patent: 3250643 (1966-05-01), Sergent
patent: 3627289 (1971-12-01), Erman
patent: 3705711 (1972-12-01), Seelandt et al.
patent: 3716001 (1973-02-01), Potasek et al.
patent: 3806322 (1974-04-01), Tabak

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