CN103028496A - Microemulsion method of molybdenum ore collecting agents - Google Patents
Microemulsion method of molybdenum ore collecting agents Download PDFInfo
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- CN103028496A CN103028496A CN2011103155956A CN201110315595A CN103028496A CN 103028496 A CN103028496 A CN 103028496A CN 2011103155956 A CN2011103155956 A CN 2011103155956A CN 201110315595 A CN201110315595 A CN 201110315595A CN 103028496 A CN103028496 A CN 103028496A
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Abstract
The invention discloses a microemulsion method of molybdenite collecting agents. The microemulsion method adopts the following required substances in percentage by mass: 6 percent to 30 percent of hydrocarbon oil, 10 to 30 percent of main emulsifying agents, 5 to 30 percent of cosurfactants and the balance water, wherein the hydrocarbon oil is light diesel oil, the main emulsifying agents are mixtures of polyoxyethylene water loss sorbierite aliphatic ester (tweens) and dehydration sorbierite aliphatic ester (spans), the hydrophile-lipophile balance (HLB value) is 10 to 15, and the cosurfactants are C4 to C8 alcohol. The molybdenite collecting agents prepared by the method have transparent and clear appearance, wherein the grain diameter of oil drips is less than 50nm, the dispersity of the hydrocarbon oil in water is obviously improved, in addition, the preparation method is simple, the stability is good, no obvious change is caused after the placement for more than six months, and on the premise that the flotation concentrate grade is basically equal to the concentrate recovery rate, the oil saving rate can reach higher than 50 percent. The microemulsion method has the advantages that the collecting agents are applied to molybdenite flotation, the energy saving and the emission reduction are favorably realized, and the economic benefit is improved.
Description
Affiliated technical field
Patent of the present invention relates to the molybdenite flotation technical field, relates in particular to a kind of micro emulsifying method of molybdenite collecting agent, and this collecting agent that makes is mainly used in the flotation of molybdenite.
Background technology
Because molybdenite has good native floatability, therefore, flotation is the most widely technology that the molybdenite sorting is adopted.Flotation is to realize sorting according to the difference of mineral surfaces physicochemical properties.Usually to add nonpolar neutral hydrocarbon-type oil in the molybdenite flotation process, such as kerosene and diesel oil etc., it forms oil film as adsorption of collector in the surface of molybdenite, strengthen the hydrophobicity on molybdenite surface, make it firmly stick to bubble surface and form mineral laden bubble, and then separate with hydrophilic gangue mineral, realize the purpose of sorting.
Hydrocarbon-type oil is insoluble in water, dispersed relatively poor in water, can only (＞1mm) form exists with oil droplet, and the molybdenite grain diameter of flotation is generally below 0.5mm, the oil droplet size that disperses descends than the probability that conference causes itself and molybdenite particle to collide, and reduces flotation efficiency, in addition, excessive oil droplet also can by more tiny molybdenite particle excessive adsorption, cause the waste of medicament.Therefore, improving the dispersiveness of hydrocarbon-type oil in water, is the important channel of improving the existing collecting agent performance of molybdenite, less collector dosage, reduction molybdenite flotation cost.
Summary of the invention
The purpose of patent of the present invention provides a kind of micro emulsifying method of molybdenite collecting agent, can improve the dispersiveness of molybdenite collecting agent in water, and then improves the flotation efficiency of molybdenite, and the preparation method is simple, and is easy to implement.
The micro emulsifying method of a kind of molybdenite collecting agent that provides of the present invention may further comprise the steps: hydrocarbon-type oil, primary emulsion, cosurfactant are mixed by a certain percentage, then add water (distilled water or running water), stir and get final product.
Other different similar approach of material addition sequence therewith; for example hydrocarbon-type oil, primary emulsion, water (distilled water or running water) are mixed by a certain percentage; then add cosurfactant, stir, also belong in protection scope of the present invention etc. serial of methods.
Wherein, the mass percent of described component is: hydrocarbon-type oil 6%～30%, and primary emulsion 10%～30%, cosurfactant 5～30%, all the other are water;
Described hydrocarbon-type oil is light diesel fuel;
Described primary emulsion is the mixture of polyoxyethylene sorbitan fatty acid ester (Tweens) and fatty acid esters of sorbitan (spans), and the hydrophilic lipophilic balance of described primary emulsion (HLB value) is between 10～15;
Described cosurfactant is selected from following at least a: C4～C8 alcohol is best with n-amyl alcohol and n-hexyl alcohol;
Described stirring can be realized by magnetic stirring apparatus;
Described light diesel fuel can be selected from following at least a: No. 10 light diesel fuels, No. 0 light diesel fuel ,-No. 10 light diesel fuels ,-No. 20 light diesel fuels and-No. 35 light diesel fuels;
Described polyoxyethylene sorbitan fatty acid ester is selected from following at least a: polysorbas20, polysorbate40, polysorbate60, Tween 80;
Described fatty acid esters of sorbitan is selected from following at least a: span 20, span 40, sorbester p18, sorbester p17.
Molybdenite collecting agent appearance transparent clarification with the method preparation, wherein oil droplet size is below 50nm, significantly improved the dispersiveness of hydrocarbon-type oil in water, and the preparation method is simple, good stability, placing does not have significant change more than 6 months, compare with the same hydrocarbon-type oil without microemulsified, under the Floatation Concentrate Grade prerequisite substantially suitable with the concentrate rate of recovery, rate of economizing gasoline can reach more than 50%.Collectors application of the present invention in molybdenite flotation, is conducive to energy-saving and emission-reduction, increases economic efficiency.
Description of drawings
The particle diameter distribution situation of oil droplet in the molybdenite collecting agent that the embodiment 1 that Fig. 1 measures for the employing dynamic light scattering prepares.
The particle diameter distribution situation of oil droplet in the molybdenite collecting agent that the embodiment 2 that Fig. 2 measures for the employing dynamic light scattering prepares.
The particle diameter distribution situation of oil droplet in the molybdenite collecting agent that the embodiment 3 that Fig. 3 measures for the employing dynamic light scattering prepares.
The particle diameter distribution situation of oil droplet in the molybdenite collecting agent that the embodiment 4 that Fig. 4 measures for the employing dynamic light scattering prepares.
Particle diameter unit is nanometer (nm) among the figure.
The specific embodiment
In conjunction with specific embodiments the present invention is illustrated, following examples are intended to further specify the present invention, and unrestricted the present invention.
Raw material: No. 0 light diesel fuel 1.5g, Tween 80 (1.07g) and sorbester p18 (0.68g) are mixed to get primary emulsion (the HLB value is 11) 1.75g, n-amyl alcohol 1.55g, water 2.0g.
Preparation method: mixture, the n-amyl alcohol of No. 0 light diesel fuel, Tween 80 and sorbester p18 are mixed, and add while stirring water with magnetic stirring apparatus, to transparent clarification.
Adopt dynamic light scattering to detect to oil droplet size distribution in the prepared molybdenite collecting agent, the results are shown in accompanying drawing 1, the micro emulsion average grain diameter is that 25.44nm, particle size are even, the outward appearance clarification.
Embodiment 2
Raw material :-No. 10 light diesel fuel 1g, polysorbate60 (0.87g) and sorbester p17 (0.33g) are mixed to get primary emulsion (the HLB value is 12) 1.2g, n-amyl alcohol 1g, water 2.5g.
Preparation method: identical with embodiment 1.
Adopt dynamic light scattering to detect to oil droplet size distribution in the prepared molybdenite collecting agent, the results are shown in accompanying drawing 2, the micro emulsion average grain diameter is that 21.59nm, particle size are even, the outward appearance clarification.
Embodiment 3
Raw material :-No. 35 light diesel fuel 1g, Tween 80 (1.06g) and sorbester p17 (0.24g) are mixed to get primary emulsion (the HLB value is 13) 1.3g, n-hexyl alcohol 1.1g, water 2.6g.
Preparation method: identical with embodiment 1.
Adopt dynamic light scattering to detect to oil droplet size distribution in the prepared molybdenite collecting agent, the results are shown in accompanying drawing 3, the micro emulsion average grain diameter is that 17.08nm, particle size are even, the outward appearance clarification.
Embodiment 4
Raw material: No. 10 light diesel fuel 1.5g, polysorbate60 (1.46g) and sorbester p18 (0.14g) are mixed to get primary emulsion (the HLB value is 14) 1.6g, n-hexyl alcohol 1.5g, water 2.5g.
Preparation method: identical with embodiment 1.
Adopt dynamic light scattering to detect to oil droplet size distribution in the prepared molybdenite collecting agent, the results are shown in accompanying drawing 4, the micro emulsion average grain diameter is that 28.47nm, particle size are even, the outward appearance clarification.
Claims (8)
1. the micro emulsifying method of a molybdenite collecting agent, it is characterized in that: described micro emulsifying method may further comprise the steps: hydrocarbon-type oil, primary emulsion, cosurfactant are mixed by a certain percentage, then add water (distilled water or running water), stir and get final product.
2. hydrocarbon-type oil described in the claim 1 is light diesel fuel.
3. primary emulsion described in the claim 1 is the mixture of polyoxyethylene sorbitan fatty acid ester (Tweens) and fatty acid esters of sorbitan (spans), and the hydrophilic lipophilic balance of described primary emulsion (HLB value) is between 10～15.
4. cosurfactant described in the claim 1 is selected from following at least a: C4～C8 alcohol is best with n-amyl alcohol and n-hexyl alcohol.
5. stir described in the claim 1 and can be realized by magnetic stirring apparatus.
6. light diesel fuel described in the claim 2 can be selected from following at least a: No. 10 light diesel fuels, No. 0 light diesel fuel ,-No. 10 light diesel fuels ,-No. 20 light diesel fuels and-No. 35 light diesel fuels.
7. the fatty acid ester of polyoxyethylene sorbitan described in the claim 3 is selected from following at least a: polysorbas20, polysorbate40, polysorbate60, Tween 80.
8. fatty acid esters of sorbitan described in the claim 3 is selected from following at least a: span 20, span 40, sorbester p18, sorbester p17.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103909021A (en) * | 2014-04-04 | 2014-07-09 | 青岛科技大学 | Microemulsion composite floatation agent for coal dressing and preparation method |
| US20150090666A1 (en) * | 2013-10-01 | 2015-04-02 | Ecolab Usa Inc. | Collectors for mineral flotation |
| CN107913641A (en) * | 2017-12-01 | 2018-04-17 | 中国计量大学 | A kind of preparation method of microemulsion |
| CN111558464A (en) * | 2020-04-28 | 2020-08-21 | 西北矿冶研究院 | Low-copper high-molybdenum ore collecting agent and preparation method thereof |
| CN113171879A (en) * | 2021-04-21 | 2021-07-27 | 中国矿业大学 | Flotation collector for low-grade molybdenite and preparation method thereof |
| CN115301413A (en) * | 2022-02-22 | 2022-11-08 | 紫金矿业集团股份有限公司 | Efficient molybdenum collecting agent and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20150090666A1 (en) * | 2013-10-01 | 2015-04-02 | Ecolab Usa Inc. | Collectors for mineral flotation |
| WO2015050808A1 (en) | 2013-10-01 | 2015-04-09 | Ecolab Usa Inc. | Collectors for mineral flotation |
| US9266120B2 (en) * | 2013-10-01 | 2016-02-23 | Ecolab Usa Inc | Collectors for mineral flotation |
| EP3052242A4 (en) * | 2013-10-01 | 2017-06-07 | Ecolab USA Inc. | Collectors for mineral flotation |
| RU2679765C2 (en) * | 2013-10-01 | 2019-02-12 | ЭКОЛАБ ЮЭсЭй ИНК. | Method of improving collector performance during pulp separation by froth floatation (versions) |
| EP4056283A3 (en) * | 2013-10-01 | 2022-09-21 | Ecolab USA Inc. | Collector for mineral flotation and use therof |
| CN103909021A (en) * | 2014-04-04 | 2014-07-09 | 青岛科技大学 | Microemulsion composite floatation agent for coal dressing and preparation method |
| CN107913641A (en) * | 2017-12-01 | 2018-04-17 | 中国计量大学 | A kind of preparation method of microemulsion |
| CN111558464A (en) * | 2020-04-28 | 2020-08-21 | 西北矿冶研究院 | Low-copper high-molybdenum ore collecting agent and preparation method thereof |
| CN113171879A (en) * | 2021-04-21 | 2021-07-27 | 中国矿业大学 | Flotation collector for low-grade molybdenite and preparation method thereof |
| CN115301413A (en) * | 2022-02-22 | 2022-11-08 | 紫金矿业集团股份有限公司 | Efficient molybdenum collecting agent and preparation method thereof |
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Application publication date: 20130410 |