| Pyrrhotite is mainly the six-party pyrrhotite and monoclinic pyrrhotite two crystal system structure,two kinds of crystal structure,differences of pyrrhotite the flotability of monoclinic pyrrhotite of hydrophobic,better than the six-party pyrrhotite and the flotability of monoclinic pyrrhotite and compared the six-party pyrrhotite is difficult to be suppressed,the flotability of similar to chalcopyrite,solid chalcopyrite flotation separation of monoclinic pyrrhotite and more difficult.In this paper through the single mineral flotation of chalcopyrite efficient choice behavior research collector and pyrrhotite inhibitor preparation;The total organic carbon TOC,ir test of flotation reagent on mineral surface adsorption capacity and adsorption method to analyze drug in the mechanism of the mineral surface;Finally will develop new mineral processing reagents used in the actual ore flotation tests.The main conclusions are as follows:By investigating the collector,copper ion,inhibitors and slurry pH condition experiment on the influence of magnetic pyrite and chalcopyrite flotation behavior research,the following results: ding huang? ester 105?XKP-01? D12 + A6?XKCP-05 the five collector of chalcopyrite stronger collecting ability for:XKCP-05 > XKP-01 > D12 + A6ester105 > ding huang,collecting performance of pyrrhotite is: ding huang > XKP-01 ester105 >D12 + A6 > XKCP-05,the new collector XKCP-05 is the best choice for chalcopyrite collecting;Humic acid sodium,sodium lignosulphonate,calcium chloride,carboxylation chitosan + humic acid sodium,sodium alginate,calcium chloride,several kinds of organic polymer inhibitors on the inhibition of chalcopyrite performance strength is:sodium lignosulphonate > sodium alginate > calcium chloride > humic acid sodium > calcium chloride and humic acid sodium > carboxylation chitosan,and the strength of pyrrhotite suppression performance is: the carboxylation chitosan > sodium alginate > calcium chloride and humic acid sodium > humic acid sodium > sodium lignosulphonate > calcium chloride,carboxylation chitosan for chalcopyrite,pyrrhotite flotation separation of effective inhibitors.By measuring flotation collector and inhibitor on the surface of the magnetic chalcopyrite and pyrite,characterized by the value of total organic carbon flotation reagent on mineral surface adsorption behavior: concluded five collector XKCP-05 in chalcopyrite surface adsorption quantity,the adsorption quantity of minimum in the surface of pyrrhotite,XKCP-05 is the best choice of chalcopyrite flotation collecting sex reason,under the condition of alkaline pulp pH XKCP-05 in pyrrhotite surface adsorption quantity reduce,verify the XKCP-05 choice of chalcopyrite collecting best;Organic polymer inhibitors carboxylation chitosan in pyrrhotite adsorption on the surface of the strongest,the most significant effect on inhibition of pyrrhotite,chalcopyrite in surface adsorption is weak,little impact on the hydrophobicity of chalcopyrite.Collector XKCP-05 carboxylation chitosan respectively and inhibitors in chalcopyrite,pyrrhotite surface before and after the infrared spectra of knowable,chalcopyrite and pyrite surface appeared a new peak and the stretching vibration displacement polarization,collector XKCP-05 carboxylation chitosan and inhibitors in chalcopyrite and pyrite surface physical adsorption and chemical adsorption.Qinghai match what pond copper processing test using collector XKCP-05,inhibitors "lime + carboxylation chitosan" is most appropriate,through a thick two fine one sweep closed-circuit test process can obtain the grade of copper 21.85%,the gold grade of 1.45 g/t,silver grade 384.50 g/t,copper recovery rate 94.37%,the gold recovery rate 25.01%,silver copper concentrate recovery was 68.46%,compared with using collector for "D12 + A6" the original process of copper,gold and silver recovery rate increased by 3.91,6.09 and 16.56%respectively;And reduces the process a selected assignments and a scavenging operation,reduces the processing cost. |
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