Pyrorefining process

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United States of America Patent

PATENT NO 11827953
APP PUB NO 20200392604A1
SERIAL NO

16771404

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A disclosed process produces at least one concentrated copper product together with at least one crude solder product, starting from a black copper composition with at least 50% of copper together with at least 1.0% wt of tin and at least 1.0% wt of lead The process includes the step of partially oxidizing the black copper thereby forming a first copper refining slag, followed by partially reducing the first copper refining slag to form a first lead-tin based metal composition and a first spent slag. The total feed to the reducing step includes an amount of copper that is at least 1.5 times as high as the sum of the amounts of Sn plus Pb present, and the first spent slag includes at most 20% wt total of copper, tin and lead together.

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Patent Owner(s)

Patent OwnerAddress
METALLO BELGIUM2340 BEERSE

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Breugelmans, Andy Beerse, BE 7 20
Coletti, Bert Beerse, BE 17 20
De, Visscher Yves Beerse, BE 17 20
Geenen, Charles Beerse, BE 20 22
Goris, Jan Dirk A Beerse, BE 16 20
Guns, Walter Beerse, BE 7 20
Mollen, Niko Beerse, BE 7 20
Smets, Steven Beerse, BE 8 22

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