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Composite floatation collector and preparation method thereof

A collector and flotation technology, applied in the field of collectors, can solve the problems of short duration of foaming, weak emulsification ability of hydrocarbon oil, limited dispersing ability, etc.

Active Publication Date: 2012-07-11
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The foaming agents used in the combined collectors for the above-mentioned molybdenum ore, copper-molybdenum ore or coal ore flotation are high-carbon alcohols and their mixtures. Although high-carbon alcohols or high-carbon alcohol mixture foaming agents have rich and brittle foams characteristics, but its density is less than 1g / mL, its dispersibility in pulp is limited, the duration of foaming is short, and its ability to emulsify hydrocarbon oil is not strong

Method used

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  • Composite floatation collector and preparation method thereof
  • Composite floatation collector and preparation method thereof
  • Composite floatation collector and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] at 2m 3 Add 450 parts of diethyl phthalate, 450 parts of cyclohexanone by-product and 900 parts of diesel oil into the reaction kettle, stir at room temperature for 20 minutes, and the obtained light yellow oily liquid is a combined flotation collector.

Embodiment 2

[0033] at 2m 3 Add 400 parts of diethyl phthalate, 400 parts of sec-octanol and 1200 parts of waste engine oil into the reaction kettle, stir at 30°C for 20 minutes, and the obtained dark brown oily liquid is another combined flotation collector.

Embodiment 3

[0035] The ore sample is a large molybdenum ore, and the common metal sulfide minerals include molybdenite, chalcopyrite and pyrite. The gangue minerals are mainly quartz, plagioclase and potassium feldspar, followed by sericite, biotite, chlorite, kaolinite and calcite. The raw ore contains 0.048% molybdenum and 0.035% copper. The ore sample is crushed to -2mm and put into a ball mill. The ball mill used is XMBΦ200mm×400mm. Grinding 1Kg ore sample each time, the grinding concentration is 62.5%, and the grinding fineness is -200 mesh, accounting for 65%. The 3L XFD-63 type single tank flotation machine is used for flotation, each flotation ore sample is 1Kg, the concentration of the flotation pulp is 30%, and the collector and foaming agent are added to obtain the coarse concentrate (foam product) and Tailings (slurry in tank). The flotation test conditions and their results are shown in Table 1.

[0036] Table 1 Collector comparison test results

[0037]

[0038] * MB...

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Abstract

Disclosed are a composite floatation collector and a preparation method thereof. The composite floatation collector is composed of phthalate, hydrocarbon type oil and high-carbon oxygen-containing organic compound according to the mass ratio of 2-10:10:2-10. The composite floatation collector has the advantages of fine low-temperature liquidity, fast bubbling, long duration of bubbling, fine dispersibility in pulp, high collecting capacity to coarse-grade mineral or ultrafine-grade mineral and the like, and is used for recovering molybdenum from molybdenum ore and copper-molybdenum ore and recovering coal from coal ore by means of floatation efficiently.

Description

[technical field] [0001] The invention relates to a novel collector for the flotation of molybdenum ore, copper-molybdenum ore and coal ore and a preparation method thereof. [Background technique] [0002] More than 97% of the world's molybdenum supply is obtained from molybdenum-containing porphyry molybdenum ores and copper-molybdenum sulfide ores, and molybdenum occurs in these deposits in the form of molybdenite. The flotation method is used for molybdenum ore dressing, and the collectors are mainly hydrocarbon oils such as kerosene, diesel oil, steam oil, aromatic oil and lubricating oil. In order to improve the dispersion of hydrocarbon oil in the pulp, reduce its dosage and increase the recovery rate of molybdenum, glycerol monolaurate monosulfate sodium salt (Syntex, or PF-100) can be added during flotation and other emulsifiers; sometimes sulfide ore collectors such as mercaptan, xanthate, and xanthate are added during flotation to assist hydrocarbon oil collectors...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/008B03D1/02B03D101/02
Inventor 钟宏刘广义曹占芳王帅
Owner CENT SOUTH UNIV
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