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Kerosene and liquid state polycyclic aromatic hydrocarbon composite eutectic and preparation method and flotation method and application thereof

A technology of condensed ring aromatics and liquid state, which is applied in the field of kerosene composite liquid condensed ring aromatics co-solution and its preparation, which can solve the problems of easy crystallization, limited promotion, increased investment, etc., and achieve the effect of good dispersibility

Active Publication Date: 2018-07-13
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the new agent of compound hydrocarbon oil has exposed many problems, such as the compounding of naphthalene and hydrocarbon oil. Although naphthalene is soluble in hydrocarbon oil, it has poor dispersibility in pulp, high production cost, and easy crystallization in winter. Resistance to use in production applications
However, although the use of emulsifiers and emulsification technology can improve the effect of molybdenum separation from kerosene, this promotion effect is limited, and the adoption of new technologies often requires additional investment, which has not yet been widely used in industry in China.

Method used

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  • Kerosene and liquid state polycyclic aromatic hydrocarbon composite eutectic and preparation method and flotation method and application thereof
  • Kerosene and liquid state polycyclic aromatic hydrocarbon composite eutectic and preparation method and flotation method and application thereof
  • Kerosene and liquid state polycyclic aromatic hydrocarbon composite eutectic and preparation method and flotation method and application thereof

Examples

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Effect test

Embodiment 1

[0029] The kerosene composite liquid fused-ring aromatic hydrocarbon co-solution in this example is mixed at room temperature with kerosene and liquid condensed-ring aromatic hydrocarbon (the mass ratio of 1-methylnaphthalene and 2-methylnaphthalene is 8:2), and then stirred evenly Prepared; wherein, the volume percentage of liquid condensed ring aromatic hydrocarbons (1-methylnaphthalene and 2-methylnaphthalene) is 3%, and a strong stirrer is used for stirring, the stirring speed is 1000r / min, and the stirring time is 1h.

Embodiment 2

[0031] The kerosene composite liquid fused-ring aromatic hydrocarbon co-solution in this example is mixed at room temperature with kerosene and liquid condensed-ring aromatic hydrocarbon (the mass ratio of 1-methylnaphthalene and 2-methylnaphthalene is 7:3), and then stirred evenly Prepared; wherein, the volume percentage of liquid condensed ring aromatic hydrocarbons (1-methylnaphthalene and 2-methylnaphthalene) is 5%, and the stirring is carried out by a strong stirrer at a stirring speed of 1100r / min for 1h.

Embodiment 3

[0033] The kerosene composite liquid condensed ring aromatic hydrocarbon co-solution in this example is at room temperature, after mixing kerosene and liquid condensed ring aromatic hydrocarbon (the mass ratio of 1-methylnaphthalene and 2-methylnaphthalene is 6:4), and then stir evenly Prepared; wherein, the volume percentage of liquid condensed ring aromatic hydrocarbons (1-methylnaphthalene and 2-methylnaphthalene) is 7%, and the stirring is carried out by a strong stirrer with a stirring speed of 1300r / min and a stirring time of 0.5h.

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Abstract

The invention discloses kerosene and liquid state polycyclic aromatic hydrocarbon composite eutectic and a preparation method and a flotation method and application thereof, and relates to the technical field of flotation agents for mineral processing. The kerosene and liquid state polycyclic aromatic hydrocarbon composite eutectic is composed of aliphatic hydrocarbon oil and liquid state polycyclic aromatic hydrocarbon; and the eutectic is good in dispersivity change in pulp, has a good effect on flotation recovery of molybdenite, and can be used for flotation recovery of the molybdenite. Thepreparation method of the eutectic comprises the following steps that after being mixed, the aliphatic hydrocarbon oil and the liquid state polycyclic aromatic hydrocarbon are stirred evenly to prepare and obtain the kerosene and liquid state polycyclic aromatic hydrocarbon composite eutectic, and the preparation method is simple and feasible in operation. The flotation method comprises the following steps that a molybdenite flotation experiment is carried out based on flotation experiment processes of one roughing and two scavenging, roughing foam and sweeping foam are combined into mixed concentrate, the kerosene and liquid state polycyclic aromatic hydrocarbon composite eutectic and turpentine oil are distributed to the flotation operations of roughing, first scavenging and second scavenging according to the mass ratio of 7:2:1, an original flotation reagent system on site is not changed, and the floatation process and a dosing point are invariable.

Description

technical field [0001] The invention relates to the technical field of flotation reagents for mineral processing, in particular to a kerosene composite liquid polycyclic aromatic hydrocarbon eutectic, a preparation method thereof, a flotation method and application thereof. Background technique [0002] Molybdenite is the main molybdenum-containing mineral in most molybdenum ores. Due to its natural buoyancy, it is usually recovered by flotation with hydrocarbon oil collectors such as kerosene and diesel oil. [0003] Although domestic molybdenum beneficiation plants mostly use kerosene as the flotation collector of molybdenite ore, however, as the scale of molybdenum mining and utilization continues to increase, molybdenum resources begin to deplete, and the phenomenon of poor, fine and miscellaneous is increasingly present. The molybdenum ore that is easy to be selected is gradually decreasing, and the traditional kerosene as a collector of molybdenite has been difficult t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/006B03D101/02B03D103/04
CPCB03D1/006B03D2201/02B03D2203/04
Inventor 何廷树李慧张崇辉王宇斌宛鹤袁航
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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