Recovery of unoxidized metals from organic insulated metallic sc

Details Recovery of unoxidized metals from organic insulated metallic sc Recovery of unoxidized metals from organic insulated metallic sc

1976-05-27

1978-05-30

Lindsay, Jr., Robert L.

Cleaning and liquid contact with solids

Processes

For metallic, siliceous, or calcareous basework, including...

29403, 75 44S, 134 10, 134 19, 209 11, 266205, 432 72, B01D 500

Patent

active

040918254

ABSTRACT:
Metallic scrap containing a coating of organic insulation material is processed to recover a clean, unoxidized metallic substrate and various insulation by-products by thermally decomposing the organic insulation under pressure in a closed, externally heated vessel. Volatile decomposition products are periodically vented to a vapor recovery system and non-volatile decomposition products, primarily carbonaceous char adhering to the clean scrap, are separated by mechanical action such as vibration or tumbling. Apparatus for performing this process is also disclosed.

REFERENCES:
patent: 1869844 (1932-08-01), Derr
patent: 2704707 (1955-03-01), Lemeshka
patent: 3034774 (1962-05-01), Broomhead et al.
patent: 3448509 (1969-06-01), O'Reilly
patent: 3650830 (1972-03-01), Mathis
patent: 3749322 (1973-07-01), Reynolds

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