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Class Information
Number: 75/655
Name: Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures > Processes > Producing or treating free metal > At 300 degrees c or greater (e.g., pyrometallurgy, etc.) > Nonferrous > Zinc(zn) > Treating slag or dross
Description: Process in which a slag or dross is treated to produce Zinc (Zn).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7819941 |
Method for reducing and/or refining a metal-containing slag |
Oct. 26, 2010 |
| 6293993 |
Method for recycling brass foundry waste |
Sep. 25, 2001 |
| 5540752 |
Method for recovery of non-ferrous metals from scrap and dross |
Jul. 30, 1996 |
| 5505762 |
Lance for immersion in a pyrometallurgical bath and method involving the lance |
Apr. 9, 1996 |
| 5411572 |
Method for utilizing smelter waste containing zinc and other valuable metals |
May. 2, 1995 |
| 5358544 |
Method of recovering zinc |
Oct. 25, 1994 |
| 5192487 |
Apparatus for treating zinc concentrates |
Mar. 9, 1993 |
| 5131944 |
Method and apparatus for treating zinc concentrates |
Jul. 21, 1992 |
| 5091001 |
Disposal of spent vanadium pentoxide catalyst by vitrification |
Feb. 25, 1992 |
| 4741770 |
Zinc smelting process using oxidation zone and reduction zone |
May. 3, 1988 |
| 4519836 |
Method of processing lead sulphide or lead-zinc sulphide ores, or sulphide concentrates, or mixtures thereof |
May. 28, 1985 |
| 4493732 |
Method for implementing pyro-metallurgical processes |
Jan. 15, 1985 |
| 4334918 |
Method of recovering non-ferrous metals from their sulphide ores |
Jun. 15, 1982 |
| 4252563 |
Process for the fuming treatment of metallurgical slag |
Feb. 24, 1981 |
| 4251271 |
Submerged injection of gas into liquid-pyrometallurgical bath |
Feb. 17, 1981 |
| 4221591 |
Method for reclaiming galvanizing quality zinc alloy from continuous galvanizing line top dross |
Sep. 9, 1980 |
| 4210441 |
Method for the continuous or discontinuous treatment of molten slag, particularly with contents of heavy metal oxides, for the recovery of portions contained therein of valuable metals or thei |
Jul. 1, 1980 |
| 4168156 |
Method of and electric furnace for processing nonferrous molten slags |
Sep. 18, 1979 |
| 4131451 |
Method for removing zinc from zinc-containing slags |
Dec. 26, 1978 |
| 4076521 |
Method for continuously blowing materials into molten slags |
Feb. 28, 1978 |
| 4075008 |
Method for the reclamation of zinc from galvanizing baths |
Feb. 21, 1978 |
| 4033760 |
Aluminum dross recovery method |
Jul. 5, 1977 |
| 4003559 |
Apparatus for recovery of metallic zinc from dross |
Jan. 18, 1977 |
| 3984235 |
Treatment of converter slag |
Oct. 5, 1976 |
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