Flotation separation method of vulcanized lead zinc minerals containing intergrowths

A technology of lead-zinc sulfide and intergrowth, which is applied in the direction of solid separation and flotation, can solve the problems that lead-zinc sulfide ore cannot be developed and utilized, and the comprehensive recovery and loss of valuable metals cannot be realized, so as to achieve economical and efficient flotation separation Difficulties, improving comprehensive utilization, and reducing processing costs

Active Publication Date: 2020-09-15
KUNMING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The above method can realize the separation of lead and zinc minerals in the ore, but some valuable metals are still lost in the tailings, and the comprehensive recovery of valuable metals cannot be realized. The ore is far from meeting the needs of lead-zinc smelting, so the efficient development and utilization of complex and refractory lead-zinc ores has become an effective way to solve the shortage of lead-zinc resources
There are a large number of lead-zinc sulfide ores containing conjoined organisms in my country, which are associated with precious metals such as gold and silver, and have high comprehensive utilization value. However, due to the limitation of mineral processing technology, lead-zinc sulfide ores containing concomitant organisms cannot be well developed and utilized.

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  • Flotation separation method of vulcanized lead zinc minerals containing intergrowths

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Experimental program
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Effect test

Embodiment 1

[0035] Embodiment 1: the mass percentage composition of lead in the lead-zinc sulfide ore containing joints of the present embodiment is 3.5%, and the mass percentage composition of zinc is 4.2%;

[0036] Such as figure 1 Shown, a kind of method that contains the lead-zinc sulfide flotation separation of intergrowth, concrete steps are as follows:

[0037] (1) Crush and grind the lead-zinc sulfide ore containing conjoined organisms until the mass percent content of -74 μm grain size accounts for 75%, and adjust the pulp until the mass percent concentration of the pulp is 30%, and the sulfide containing concomitant organisms per ton For lead-zinc ore, add 800g lime, 1000g combined inhibitor A, 200g copper ammonium complex, 400g combined collector A and 40g terpineol oil successively in the ore pulp, carry out lead-zinc roughing I operation, obtain lead-zinc crude Concentrate I and lead-zinc roughing I tailings; add 400g lime, 500g combined inhibitor A, 100g copper ammonium com...

Embodiment 2

[0043] Embodiment 2: the mass percentage content of lead in the lead-zinc sulfide ore containing joints of the present embodiment is 5.2%, and the mass percentage content of zinc is 6.7%;

[0044] Such as figure 1 Shown, a kind of method that contains the lead-zinc sulfide flotation separation of intergrowth, concrete steps are as follows:

[0045] (1) Crush and grind the lead-zinc sulfide ore containing conjoined organisms until the mass percentage of -74 μm grain size accounts for 70%, and adjust the pulp until the mass percentage concentration of the pulp is 35%, and the sulfide containing concomitant organisms per ton For lead-zinc ore, add 1200g lime, 1500g combination inhibitor A, 300g cuproammonia complex, 600g combination collector A and 50g terpineol oil successively in ore slurry, carry out lead-zinc roughing I operation, obtain lead-zinc crude Concentrate I and lead-zinc rougher I tailings; Add 600g lime, 750g combined inhibitor A, 150g copper ammonium complex, 300...

Embodiment 3

[0051] Embodiment 3: the mass percentage content of lead in the lead-zinc sulfide ore containing joints of the present embodiment is 6.9%, and the mass percentage content of zinc is 8.3%;

[0052] Such as figure 1 Shown, a kind of method that contains the lead-zinc sulfide flotation separation of intergrowth, concrete steps are as follows:

[0053] (1) Crush and grind the lead-zinc sulfide ore containing conjoined organisms until the mass percent content of -74 μm particle size accounts for 65%, and adjust the pulp until the mass percentage concentration of the pulp is 40%, and the sulfide containing concomitant organisms per ton For lead-zinc ore, add 1600g lime, 2000g combination inhibitor A, 400g copper ammonium complex, 800g combination collector A and 60g pine alcohol oil successively in ore slurry, carry out lead-zinc roughing I operation, obtain lead-zinc crude Concentrate I and lead-zinc roughing I tailings; Add 800g lime, 1000g combined inhibitor A, 200g cuproammonia...

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Abstract

The invention discloses a flotation separation method of vulcanized lead zinc minerals containing intergrowths and belongs to the technical field of mineral processing. The method comprises the stepsof conducting enrichment on the vulcanized lead zinc minerals containing the intergrowths through mixed flotation to obtain lead zinc mixed rough concentrates and flotation tailings; and adding a combined gangue inhibitor to the lead zinc mixed rough concentrates to conduct flotation to discharge tailings to obtain lead zinc mixed concentrates with high lead zinc content and with the mineral amount remarkably reduced, conducting fine grinding treatment on the lead zinc mixed concentrates, and conducting flotation separation through the zinc inhibition and lead flotation process to obtain zincconcentrates and lead concentrates. According to the method, the lead zinc minerals in minerals are enriched synchronously through mixed flotation; the lead zinc mixed rough concentrates are subjectedto flotation to discharge the tailings, the lead zinc grade is improved, and the mineral treatment capacity through the fine grinding process is reduced; moreover, monomer separation of the lead zincminerals in the mixed concentrates is realized through fine grinding, zinc inhibition and lead flotation are facilitated, the problem of flotation separation of the vulcanized lead zinc minerals containing the intergrowths is solved, and the comprehensive utilization rate of lead zinc resources is increased.

Description

technical field [0001] The invention relates to a method for flotation and separation of lead-zinc sulfide ore containing intergrowth, belonging to the technical field of mineral processing. Background technique [0002] Lead-zinc metal is widely used in electrical industry, machinery industry, military industry, chemical industry and other fields. Lead-zinc sulfide ore is the main mineral resource for extracting lead-zinc metals. Most of the industrial lead production comes from galena, and the zinc production comes from sphalerite and sphalerite. Both lead and zinc have strong sulfophilicity, and their ore-forming conditions and geochemical behavior are similar, so lead-zinc sulfide deposits are often closely symbiotic in ore deposits. In view of the complex embedded structure and uneven embedded particle size of lead-zinc sulfide ore, multi-stage grinding is usually used to fully dissociate the target minerals in the ore, and then through preferential flotation, mixed fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B9/00B03B1/00B03D1/018B03D1/002B03D101/02B03D101/06B03D103/02
CPCB03B1/00B03B9/00B03D1/002B03D1/018B03D2201/02B03D2201/06B03D2203/02
Inventor 丰奇成文书明韩广王涵赵文娟
Owner KUNMING UNIV OF SCI & TECH
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