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A combined zinc collector for flotation of lead-zinc sulfide ore and its application

A technology for flotation of lead and zinc and collectors, applied in flotation, solid separation and other directions, can solve the problems of weak black medicine collecting ability, high pH of pulp, poor selectivity, etc., and achieve stable indicators, low prices, and on-site application. simple effect

Active Publication Date: 2021-11-30
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used sphalerite collectors mainly include xanthate, black powder and sulfur nitrogen. Xanthate has strong collection ability, but poor selectivity; ;Sulphur-nitrogen collection ability is strong, selectivity is good, and the dosage of chemicals is small
However, in the actual flotation of high-sulfur lead-zinc ore, the sulfur content is high, a large amount of lime needs to be added, the pH of the slurry is high, the zinc selection foam layer is thin, the foam is small and fine, and the impurity content of the zinc concentrate is relatively high. To improve the recovery rate, it is necessary to study a collector with stronger selectivity and collection for zinc sulfide ore

Method used

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  • A combined zinc collector for flotation of lead-zinc sulfide ore and its application
  • A combined zinc collector for flotation of lead-zinc sulfide ore and its application
  • A combined zinc collector for flotation of lead-zinc sulfide ore and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A small ore in Yunnan contains 2.98%, Zn 2.79%, S 27.79%, Fe 24.83%, AS 0.55%, AG114.95 g / t, which is high-skew-containing lead zinc ore. The highest content of the shasty component is SiO 2 About 18.62%, followed by Al 2 O 3 About 11.05%; Other ostly-shaped compositions of CaO 3.99%, MgO 2.01%, K 2 O 1.16%, NA 2 O 0.073%. The main metal minerals in ore are mainly Huangding Mine (including a small amount of white iron ore), square lead ore, flash zinc ore, a small amount or trace of brown ore, white lead, lead alum, male, poisonous sand, diamond Mine, female yellow, yellow copper mine, copper blue, etc. Frequently packaged fine particulate copper mines in flash zinc mines, and occasionally wrapped in magnetic iron ore. The occasional sparkles were wrapped in the yellow iron mine. The layered particle size of the flash zinc mine is mainly between 0.03-0.3 mm.

[0037] The ore is selected from the group consisting of a combined collector, and the combined collector consists...

Embodiment 2

[0062] A low-sulfur-containing Pb-Zn Pb 1.37%, Zn 3.43%, S 30.06%, Fe 28.88%, Cu 0.12%, Ag80.00%, As 0.03%, the purpose of ore minerals are galena, sphalerite silver and associated minerals, other higher levels of metallic minerals pyrite, pyrrhotite, magnetite and the like; gangue minerals are mainly chlorite, hornblende, mica, and tremolite. Sphalerite mostly lumpy, disseminated, stockwork, punctiform distribution, multiple cross-cut through the galena; some irregular shape sphalerite further wrapped chalcopyrite, galena; few sphalerite wrapped account magnetite, pyrite.

[0063] Of the ore using a combination of zinc selected from the collector, the collector composition from the following constituents in parts by weight: 20 parts tetrabutylammonium aerofloat, diethyldithiocarbamate 35 parts, 45 parts of 2-aminothiophenol. When combined collectors, buty ammonium black drugs, sulfur nitrogen, and 2-aminophenol were mixed uniform, and the water was placed in a solution of a mass ...

Embodiment 3

[0076] A lead-zinc high sulfur containing Pb 7.31%, Zn 6.66%, S 19.09%, Fe 14.02%, Cu 0.16%, the purpose of ore minerals are galena, sphalerite and pyrite, minor chalcopyrite , bornite, chalcocite and rhodochrosite; gangue minerals quartz and dolomite, calcite, and a small amount of chlorite. Sphalerite mostly semi-shape, which form the crystalline particles, the particle size of 2.5mm-0.01mm, the size of the disparity, which is more than pyrite, galena green form sulfides insert assembly, wherein the crystallization of the larger internal particle porosity development, and there is a small pyrite, galena filling, small sphalerite pyrite also filled in the pores. Sphalerite structure having a semi-shaped grains, erosion structure, and the structure of the emulsion droplets interstitial structure.

[0077] Of the ore using a combination of zinc selected from the collector, the collector composition from the following constituents in parts by weight: 10 parts tetrabutylammonium aero...

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Abstract

The invention discloses a combined zinc collector for flotation of lead-zinc sulfide ore and its application. According to parts by weight, the active ingredients include 10-30 parts of butyl ammonium black medicine, 30-50 parts of ethyl disulfide, 2-2 Aminothiophenol 30‑50 parts. The present invention is a high-efficiency combined collector for sphalerite flotation. The combined collector is composed of butyl ammonium black medicine, ethyl dithiazide, and 2-aminothiophenol, which is easy to obtain, low in price, and less in dosage. , no pollution. Butyl ammonium black drug has weak collection ability, but has foaming property; strong sulfur and nitrogen collection ability, and has certain collection ability for lead and zinc sulfide ores; 2-aminothiophenol has strong collection ability, compared with Conventional collectors such as xanthate and 2-aminothiophenol have good flotation effect on sphalerite even without activation by copper ions, but poor flotation effect on lead sulfide ore. However, 2‑aminothiophenol is a weakly acidic compound and cannot fully interact with zinc sulfide ore at low pH. Therefore, each component of the combination collector of the present invention can complement each other.

Description

Technical field [0001] The present invention belongs to the technical field of lead-zinc sulfide mine selection, and more particularly to a combined zinc capture agent for flotation lead-zinc sulfide and its application thereof. Background technique [0002] Zinc is a silver-white slightly light blue metal, often combined with copper, tin, lead, etc. into combination of brass or aluminum, magnesium, copper, etc., applied to metallurgy, chemical, mechanical, electrical, military, etc. A variety of fields; another important use of zinc is galvanized for electroplating anti-corrosion. Zinc compound can be used in textile industries and manufacturing paints, dyes, pigments, etc. [0003] Scrincynezine is one of the most important sources of zinc metal, and 90% zinc production sources flash zinc ore, and its chemical formula is the form of Fe elements in the form of ZnS flash zinc ore in the deposit geological formation. Mixed, the iron-containing amount is more than 6%, called the Ir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/014B03D1/02B03D1/08B03D101/02B03D103/02
CPCB03D1/014B03D1/02B03D1/082B03D1/087B03D2201/02B03D2203/02
Inventor 焦芬覃文庆杨聪仁韩俊伟魏茜胡陈强崔艳芳张政权徐乐
Owner CENT SOUTH UNIV
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