Process for adsorboaggregational flotation of Carlin type natural gold ore dressing

A novel process for adsorptive aggregation and floatation of Carling type mine natural gold ores, comprising the following procedures:

• (1) above 80% mineral ores are finely ground to smaller than 200 mesh;
• (2) the mineral ores after being ground are first sluiced;
• (3) then the sluiced ores are carried out a floatation which comprises coarse screening and sweep screenings, wherein the following preparations are sequentially added:
• a. a stffficient amount of "the stripping agent" is added, the composition (weight percentage) of which is:
• 0.025.about.1 fiuorosodium silicate, 0.03.about.1 lactic acid, 0.03.about.1.6 lead nitrate, 0.4.about.5 acid, and the rest water;
• b. a sufficient amount of "the adsorptive aggregation agent" wherein the composition (weight percentage) is:
• 5.about.20 coal oil, 0. 1.about.3 machine oil, 0.1.about.2 turpentine oil, 0.1.about.1 ethyl xanthine, 0.05.about.0.5 dodecylamine and the rest water;
• c. a sufficient amount of "xanthine collecting agent";
• d. a sufficient amount of "flocculant".