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Class 75/727 - And flotation


Subclass of Class 75 - Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
Definition: Process wherein flotation in liquid is involved as a means
No. of patents: 2
Last issue date: 08/18/1998


NumberTitleIssue Date
5795465Process for recovering copper from copper-containing material
The present invention provides a process that employs both non-selective flotation and oxidative leaching of the resulting concentrates to recover an increased amount of copper from porphyry copper ores. The non-selective flotation step uses collectors an... 		08/18/1998
4242129Method of recovering metals
The leaching, precipitation and flotation method of recovering metals from ores is simplified by carrying out the leaching and precipitation steps simultaneously in the same reaction vessel. The method is particularly useful for recovering metals from low... 		12/30/1980
 
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