The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 26, 1978
Filed:
May. 10, 1977
Mark M Lakernik, Moscow, SU;
Roza I Shabalina, Moscow, SU;
Alexandr F Gavrilenko, Moscow, SU;
Anatoly A Yakovenko, Moscow, SU;
Anatoly I Golovachev, Moscow, SU;
Tatyana S Egorova, Moscow, SU;
Other;
Abstract
A method for removing zinc from zinc-containing slags resides in that zinc is recovered from a bath of said slag by introducing a reducing agent, such as coke, thereinto, and by further blowing nitrogen into said bath in an amount of 0.5 to 3.5 Nm.sup.3 /min.m.sup.2 of the bath surface and at a molten slag temperature of 1220 to 1400.degree. C, preferably within the range of from 1220 to 1290.degree. C. The invention makes it possible to step up the rate of zinc recovery up to 2.3 kg/min.m.sup.2 of the bath surface, reduce power input by 30 to 40%, and thereby to cut down expenses involved in the process as a whole.