A high-efficiency flotation collector of zinc sulfide and its application
A collector, zinc sulfide technology, applied in flotation, chemical instruments and methods, solid separation and other directions, can solve the problems of large amount of copper sulfate, slow zinc floating speed, low zinc recovery rate, etc., and achieve high wastewater treatment costs. , Efficient recovery of zinc, the effect of serious environmental pollution
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Embodiment 1
[0031] A high-sulfur lead-zinc mine in Inner Mongolia is used as raw ore, with 3.01% lead, 2.43% zinc and 21.35% sulfur. The ore belongs to high-sulfur lead-zinc sulfide ore. The mineral composition of the raw ore is complex, and the useful minerals are distributed in a medium-fine manner. The main metal minerals in the ore are pyrite, galena and sphalerite, etc., and a small or trace amount of limonite, lead alum, white leadite, etc. . Zinc sulfide minerals in this mine are mainly sphalerite (containing Fe>8%), which has poor floatability and is difficult to recover by flotation. The high sulfur content of raw ore will interfere with the flotation of lead and zinc.
[0032] In this example, HQ-Zn consists of 2-hydroxyethyl dibutyl dithiocarbamate (structure shown in formula I), 2-hydroxyl-1-mercaptothiol (structure shown in formula II) and Octanol is 95.5%, 2%, 2.5% by mass percentage, after mixing evenly, add according to stock solution.
[0033]
[0034](1) The raw o...
Embodiment 2
[0050] The technological process is basically the same as that of Example 1, and HQ-Zn is used for zinc roughing, but the dosage of the medicament is adjusted. The flotation results are shown in 5# in Table 1.
[0051] Zinc rough selection: lime 500g / t, copper sulfate 200g / t, HQ-Zn 50 g / t, terpineol oil 9g / t; zinc sweep 1: HQ-Zn 30g / t; zinc sweep 2: HQ-Zn 15g / t t; zinc selection 1: lime 200g / t; zinc selection 2: lime 100g / t; the results are shown in 5# in Table 1.
Embodiment 3
[0053] The technological process is basically the same as that of Example 1, and HQ-Zn is used for zinc roughing, but the dosage of the medicament is adjusted. The flotation results are shown in 6# in Table 1.
[0054] Zinc rough selection: lime 500g / t, copper sulfate 200g / t, HQ-Zn 30g / t, terpineol oil 9g / t; zinc sweep 1: HQ-Zn 10 g / t; zinc sweep 2: HQ-Zn 5g / t; zinc selection 1: lime 200g / t; zinc selection 2: lime 100g / t; the results are shown in 6# in Table 1.
[0055] Table 1 Test 1#~Test 7# Full-process closed-circuit comparison test results / %
[0056]
[0057]
[0058] As can be seen from Table 1, HQ-Zn (embodiment 1 (7#)) is relatively single collector HEDD (comparative example 1 (1#)), DDM (comparative example 2 (2#)), DET (comparative example 3 (3#)), the grade of zinc in the zinc concentrate obtained by HQ-Zn is the highest, which is 51.41%, and the recovery rate of zinc operation is also the highest, which is 93.90%. , got better zinc flotation results. Com...
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