Abstract:
A new type of depressant X33 and L3 was used for flotation separation of a lead-zinc-sulfur bulk concentrate in Yunnan. The test results show that the depressant can replace the traditional depressants in separation method for separate the lead-zinc-sulfur bulk concentrate. Its chemical process is environmentally friendly and the dosage is low. A galena-sphalerite-pyrrhotite mixed concentrate in Yunnan contains 17.35% lead, 6.76% zinc and 31.04% iron, when is separated by flotation, lead concentrate containing 64.59% lead, and lead recovery of 95.49%, 326.8 g/t silver, and silver recovery of 83.29% and 4.64% zinc; zinc concentrate containing 51.56% zinc, 3.55% lead, and zinc recovery of 64.09% was obtained; 43.4% sulfur and 78.67% sulfur recovery in the pyrite concentrate.