Oxidized ore flotation mixed-dissolving collecting agent and using method thereof

A collector and oxidized ore technology, which is applied in flotation, solid separation, etc., can solve the problems of sticky flotation foam volume and low recovery rate, achieve enhanced suppression, improve zinc grade and recovery rate, and solve the problem of foam volume big sticky effect

Active Publication Date: 2019-02-01
CHINA MINMETALS CHANGSHA MINING RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high-efficiency oxidized ore miscible collector and its use method to solve the problem of low recovery rate caused by desliming when adopting sulfidation first and then amine flotation to recover lead-zinc oxide ore. Problems with sticky foam volume

Method used

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  • Oxidized ore flotation mixed-dissolving collecting agent and using method thereof
  • Oxidized ore flotation mixed-dissolving collecting agent and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The grade of zinc in the tailings of a lead-zinc mine in Sichuan after separation of lead-zinc sulfide ore is 2.56%, and more than 81% of the zinc exists in the form of smithsonite and hemimorphite, and the gangue minerals include carbonate minerals such as dolomite and calcite The content is higher. Due to the low hardness of carbonate gangue minerals, the grinding process is easy to muddy, and a large amount of slime is produced, which has a great adverse effect on the flotation process. The on-site process adopts the process of desliming and then flotation, resulting in the loss of zinc metal. The non-desliming flotation closed-circuit test of the ore is carried out by using the oxidized ore flotation miscible collector of the present invention.

[0023] After adding regulator sodium sulfide 5Kg / t and described collector 38g / t in raw ore, carry out rough separation, obtain rough selection foam product and the product in rough selection tank; Add inhibitor sodium hexa...

Embodiment 2

[0029] The grade of zinc in a zinc oxide mine in Yunnan is 3.17%, more than 85% of the zinc exists in the form of smithsonite, and the content of carbonate minerals such as dolomite and calcite in the gangue minerals is very high. The oxidized ore flotation miscible collector of the present invention is used to carry out a flotation closed-circuit test on the ore.

[0030] After adding regulator sodium sulfide 4.5Kg / t and described collector 24g / t in raw ore, carry out rough separation, obtain rough selection foam product and product in the rough selection tank; Add inhibitor water glass to rough selection foam product, Three times of beneficiation are carried out to obtain the final zinc oxide concentrate product; 12 g / t of the collector is added to the product in the roughing tank, and scavenging is carried out to obtain the tailings product. Selected middlings and sweeping middlings are returned in sequence.

[0031] Table 2 shows the contrast test results of the zinc oxid...

Embodiment 3

[0036] The original ore zinc grade of a zinc oxide mine in Gansu is 3.81%. Zinc mainly occurs in smithsonite and hemimorphite. Among the gangue minerals, the content of carbonate gangue minerals such as dolomite and calcite is relatively high, and there is also a small amount of Silicates such as mica and serpentine. The oxidized ore flotation miscible collector of the present invention is used to carry out a flotation closed-circuit test on the ore.

[0037] After adding regulator sodium sulfide 4Kg / t and described collector 60g / t in raw ore, carry out roughing, obtain roughing foam product and the product in roughing tank; Add depressant water glass to roughing foam product, carry out Three times of beneficiation to obtain the final zinc oxide concentrate product; adding 30 g / t of the collector to the product in the roughing tank for scavenging to obtain the tailings product. Selected middlings and sweeping middlings are returned in sequence.

[0038] Table 3 shows the con...

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Abstract

The invention discloses an oxidized ore flotation mixed-dissolving collecting agent and a using method thereof. The ore oxide collecting agent takes soft fatty amine, acetic acid, water, hydroxyethylcellulose and polyacrylic acid as raw materials, and is formed by mixing the following components of, in percentage by mass, 2-5% of soft fatty amine, 2-5% of acetic acid, 45-50% of water, 10-15% of hydroxyethyl cellulose and 30-35% of polyacrylic acid; the using method comprises the following specific steps of firstly, mixing the soft alicyclic amine and the acetic acid in proportion, adding water and uniformly stirring, the solution is colorless and transparent, then adding hydroxyethyl cellulose and polyacrylic acid, and continuously stirring until the mixture becomes a white emulsion. Theore oxide mixing and collecting agent can be applied to flotation oxide zinc ores, copper oxide ores, quartz, feldspar and other oxidized ores, compared with a traditional amine cation collecting agent, the collecting agent is used as an inhibitor and a collecting agent during zinc oxide ore flotation, the viscosity of the foam can be reduced, and the sorting performance of the zinc oxide mineralscan be improved; the ore oxide collecting agent disclosed has the advantages of being small in using amount, low in viscosity and high in dispersity, good in selectivity and the like, and is suitablefor being used as an ore oxide, in particular to a zinc oxide flotation collecting agent.

Description

technical field [0001] The invention relates to the field of oxidized ore flotation, in particular to the preparation and use method of a flotation collector for oxidized ore, especially lead-zinc oxide ore. Background technique [0002] With the decrease of easy-to-select zinc sulfide mineral resources, how to develop and utilize zinc oxide ore to realize efficient recovery of refractory zinc oxide ore resources is an urgent problem to be solved to meet the sustainable development needs of the zinc mining industry. Due to the characteristics of complex ore composition, various types of minerals, fine particle size intercalation, severe mudification, and high content of soluble salts, zinc oxide mineral resources are generally refractory ores. The traditional zinc oxide flotation adopts the process of desliming in advance, which causes the loss of zinc metal and the recovery rate of ore dressing is low. Flotation with amine collectors after sulfidation is the main method us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/01B03D1/02B03D101/02B03D103/02
CPCB03D1/01B03D1/02B03D2201/02B03D2203/02
Inventor 祁忠旭冯程孙大勇王章鹤王龙肖舜元陶建利黄虎辉
Owner CHINA MINMETALS CHANGSHA MINING RES INST
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