PROCESS FOR THE SELECTIVE FROTH-FLOTATION OF SULFIDIC, OXIDIC AND SALT-TYPE MINERALS

摘要

ABSTRACT OF THE DISCLOSUREA process for the selective froth-flotation of sulfidic,oxidic and salt-type minerals, whereby an ore is first wetgroundto the flotation fineness to obtain a slurry and then theobtained slurry is prepared and froth-flotated. In addition tothe collector agent a polysaccharide, lignosulfonate, quarcumand/or a tenside-type additional chemical is used which preventsthe collector agent from adhering to the silicate surfaces andmakes them hydrophilic, or weakens the hydrophobia of mineralsto which the collector agent has already adhered. The collectoragent and the additional chemical may be added as early as thewet-grinding stage.