Process for the recovery of metallics from brass skimmings

Details Process for the recovery of metallics from brass skimmings Process for the recovery of metallics from brass skimmings

C - Chemistry, Metallurgy

22

B

53/371

C22B 7/00 (2006.01)

Patent

CA 1048279

ABSTRACT Method of recovering metals and a zinc salt by-product from brass skimmings by chemical methods by crushing to loosen and expose zinc oxide from the metallics thereof, optionally screening out the larger particles (which are mainly metallic) for direct recycling, adding the remainder to a reaction vessel together with con- centrated hydrochloric or sulfuric acid with agitation at a rate and ratio to react the zinc oxide but not the metallics (preferably accomplished by controlling such relative additions so as to maintain the reaction zone at a pH between 0.1 and 1.5), and rapidly settling and removing for recycling the metallics from said vessel and overflowing the zinc salt reaction product in solution (as a useful by-product).

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