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Volatile component rectifying-extracting coupled extraction device and method

A technology for volatile components and extraction devices, which is applied in the field of extraction devices for volatile components in plants or Chinese medicinal materials, can solve the problems of reduced yield, high cost, and difficult precipitation of volatile components, so as to shorten the process flow and improve Extraction efficiency, loss reduction effect

Active Publication Date: 2011-02-23
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The extractive distillation device is more successful in extracting some volatile components that are insoluble in water and have a large density difference from water. There will be the following problems: (1) The volatile components are dissolved in water and are not easy to precipitate; (2) The volatile components are dispersed and stuck on the inner wall of the oil-water separator and cannot be collected; (3) The volatile components are separated and smashed by the condensate , re-reflux into the extraction tank
These problems directly lead to longer extraction time of volatile components, decreased yield, high cost, and insufficient utilization of precious plant resources or Chinese medicinal materials, which have a great impact on the economic benefits of production enterprises.

Method used

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  • Volatile component rectifying-extracting coupled extraction device and method
  • Volatile component rectifying-extracting coupled extraction device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Take 1 kg of Ligusticum Chuanxiong and grind it to 1 cm × 1 cm × 0.5 cm and add it to the extraction tank 1, then add 10 L of water, turn on the first heating device 10 at the bottom of the extraction tank 1 and the second heating device 15 heating device on the side wall of the extraction tank 1, and Turn on the condensed water switches of the condensing coil 23 and the condenser 5 in turn, stop heating when reflux liquid appears in the oil-water separator 6 and the liquid level is stable, and close the condensing coil 23 and the condenser 5, and soak for 12 hours.

[0050] After soaking, open the first nozzle 29 of the oil-water separator 6, add 11.4ml of mixed volatile oil of the four herbs of Atractylodes atractylodes, notopterygium, frankincense, and myrrh (dosing according to the formula ratio of Jingfukang preparation), and turn on the condensation coil in turn 23. The condensed water switch of the condenser 5 and the condensing pipe 30, and turn on the first heat...

Embodiment 2

[0052] Take 2 kg of Rhizoma Chuanxiong and grind it to 1 cm × 1 cm × 0.5 cm and add it to the extraction tank 1, then add 20 L of water, turn on the first heating device 10 at the bottom of the extraction tank 1 and the second heating device 15 heating device on the side wall of the extraction tank 1, and Turn on the condensed water switches of the condensing coil 23 and the condenser 5 in turn, stop heating when reflux liquid appears in the oil-water separator 6 and the liquid level is stable, and close the condensing coil 23 and the condenser 5, and soak for 12 hours.

[0053] After soaking, open the first branch nozzle 29 of the oil-water separator 6, add 10ml of n-hexane, turn on the condensed water switches of the condensing coil 23, the condenser 5 and the condensing pipe 30 in turn, and turn on the first heating device at the bottom of the extraction tank 1 10. Extract for 20 hours under the full reflux state. After the extraction, close the first heating device 10, open...

Embodiment 3

[0056] The volatile components of curcuma were extracted by water separation method. Add 1 kg of Zedoary Curcuma to the extraction tank 1, then add 8 L of water, turn on the first heating device 10 at the bottom of the extraction tank 1 and the second heating device 15 heating device on the side wall of the extraction tank 1, and turn on the condensation coil 23 and the condensation coil successively. The condensed water switch of device 5, stop heating when reflux liquid appears in the oil-water separator 6 and the liquid level is stable, and close condensing coil 23 and condenser 5, soak for 24 hours.

[0057] Take out the curcuma medicinal material from the discharge port 14 of the extraction tank 1, crush the medicinal material to 2cm×2cm×0.5cm, and add it into the extraction tank 1 again.

[0058] Afterwards, open the first branch nozzle 29 of the oil-water separator 6, add 10ml of normal hexane, turn on the condensation water switch of the condensation coil 23, the conde...

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Abstract

The invention discloses a volatile component rectifying-extracting coupled extraction device, which is mainly characterized in that: a reducing rectifying tower formed by connecting two sections of rectifying towers and a reducing tower is arranged between an extracting tank and a condenser; an air duct is arranged on the condenser; and the bottom end of the condenser is provided with an oil-water separator and a reflux device with a U-shaped pipe structure. The extraction method by utilizing the device comprises the following steps of: 1, mixing fragrant plants or traditional Chinese medicinal materials with a proper amount of water, and putting into the extracting tank; 2, setting soaking time; 3, heating and opening various condensing devices; 4, adding and separating an extracting agent at proper moment in the rectifying process; and 5, collecting volatile components at the lower pipe orifice of the oil-water separator. The device has the advantages that: the rectifying extraction and extraction are combined, the operation of two processes is synchronously completed, the process flow is shortened, the loss of the volatile components is reduced, the yield of the volatile components is higher, and the device has a wider raw material application range, and is suitable for industrial promotion and application.

Description

[0001] technical field [0002] The invention relates to the technical field of rectification and extraction in chemical engineering, in particular to an extraction device for volatile components in plants or Chinese medicinal materials, and relates to a rectification-extraction coupling extraction device for volatile components and an extraction method thereof. Background technique [0003] The "volatile components" referred to in the present invention refer to the general term of the volatile oily liquids of plants or Chinese medicinal materials that can volatilize at normal temperature or can be distilled out with water vapor. Most of the "volatile components" have a special and strong fragrance, but usually the content is low and the composition is complex. Volatile oily liquids are widely used in products in various industries such as medicine, flavors and fragrances, cosmetics, food, tobacco and alcohol products, cleaning supplies, etc. because of their unique pharmac...

Claims

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Application Information

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IPC IPC(8): B01D11/02B01D3/14
Inventor 倪力军张立国张超贺静王飞霞
Owner EAST CHINA UNIV OF SCI & TECH
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