Method for the recovery by melting of at least one...

Details Method for the recovery by melting of at least one... Method for the recovery by melting of at least one...

2011-05-31

2011-05-31

Wyszomierski, George (Department: 1733)

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

C075S402000, C075S585000, C075S709000

Reexamination Certificate

active

07951222

ABSTRACT:
The invention relates in particular to a method for the recovery of at least one non-ferrous metal (11) contained in scrap (9), by melting the scrap (9) in a furnace (1), the method comprising:a step of charging the furnace (1) with scrap (9),a step of melting the scrap (9) in order to separate the at least one non-ferrous metal (11) from other components (13) which the scrap (9) comprises. The method is noteworthy in that it comprises a step of adding a silica-comprising product (15) in an amount which is sufficient to form an airtight layer on the surface of the scrap (9).

REFERENCES:
patent: 6485541 (2002-11-01), Hryn et al.
patent: 2004/0046293 (2004-03-01), Gross
patent: 2 672 620 (1992-08-01), None
Derwent Acc-No. 1971-49824S for SU 280213 A. Application date May 5, 1969. Abstract.

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