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Ultrasound-enhanced supercritical or subcritical fluid extraction device

A subcritical fluid, ultrasonic strengthening technology, applied in solvent extraction, chemical instruments and methods, chemical/physical/physical-chemical processes of applying energy, etc. problems, to achieve the effect of increasing the range, enhancing the extraction effect, and long working life

Inactive Publication Date: 2010-12-15
刘云鹤 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The built-in type is to install the ultrasonic transducer directly in the high-pressure extraction kettle, so that the ultrasonic wave directly radiates into the extraction medium, which can reduce the loss of ultrasonic energy during the extraction process, and the utilization rate of ultrasonic energy is high, but its disadvantages are: due to the Due to size limitations, it is impossible to install high-power ultrasonic transducers
Therefore, the external type is usually only suitable for the laboratory

Method used

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Embodiment Construction

[0009] from figure 1 It can be seen that the ultrasonic-enhanced supercritical or subcritical fluid extraction device of the present invention still has an extraction kettle 1, an ultrasonic transducer 2, and a horn 3, and the horn is installed at the end of the extraction kettle 1 at its node 31. On the cover 11, and one end of the horn 3 extends into the extraction kettle 1, and the other end is connected with the end face of the ultrasonic transducer 2 outside the extraction kettle, and a tool head 4 is preferably added to the lower end of the horn 3 to ensure ultrasonic waves. It can be better distributed in the extraction kettle.

[0010] The inventor has built a device of the present invention with a volume of 1 liter. In its extraction kettle, ultrasonic waves with an output electric power of 1500 W can be generated, which ensures sufficient ultrasonic power density in the extraction kettle, and can break the cells of the extract and produce the most ultrasonic waves. ...

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Abstract

The invention provides an ultrasound-enhanced supercritical or subcritical fluid extraction device which comprises an extraction kettle, an ultrasonic transducer and an amplitude transformer, wherein the amplitude transformer is arranged on the extraction kettle at a node of the amplitude transformer, the ultrasonic transducer is positioned outside the extraction kettle, one end of the amplitude transformer is connected with the ultrasonic transducer, and the other end of the amplitude transformer extends into the extraction kettle. The invention has large ultrasonic power density and high ultrasonic energy utilization ratio and can be applied in the aspect of ultrasound-enhanced supercritical or subcritical fluid extraction and can also be applied in aspects of supercritical or subcritical fluid dying, water oxidation, fine particle preparation, and the like.

Description

technical field [0001] The invention relates to an ultrasonic-enhanced supercritical fluid extraction device. Background technique [0002] Ultrasonic-enhanced supercritical fluid extraction technology is a technology developed in the past two years. It is a technology that adds ultrasonic field to supercritical fluid extraction to reduce extraction pressure and extraction temperature, shorten extraction time, and ultimately improve extraction rate. Breaking the cells of the extract by ultrasonic action can directly improve the extraction efficiency or speed up the reaction speed; making the cavitation test material (aluminum foil) to produce changes such as voids or cracks is a way to test the ultrasonic effect, which is helpful for ultrasonic enhancement of extraction efficiency. Mechanistic study. The above two points play a very important role in the research and production of ultrasonic enhanced supercritical fluid extraction, and these two points are related to the ul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D11/00B01J19/10
Inventor 周鸣谦刘云鹤秦丹周鸣镝
Owner 刘云鹤
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