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Dynamic and continuous atomizing extraction method

An extraction and dynamic technology, applied in chemical instruments and methods, liquid solution solvent extraction, countercurrent extraction, etc., can solve the problems of large amount of solvent, long extraction time, and high cost, and achieve improved extraction efficiency, complete extraction effect, and recovery rate. improved effect

Inactive Publication Date: 2016-05-04
XIAN HONSON BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common problems in laboratory extraction and production extraction are cumbersome operation, long standing separation time, poor separation effect, and complete separation cannot be achieved.
The traditional extraction and separation of plant active ingredients uses solvent extraction technology, but traditional solvent extraction has limitations such as long extraction time, large amount of solvent, time-consuming and labor-intensive, and non-continuous extraction.
As the most advanced physical extraction technology in the world, supercritical extraction is a special form of high-pressure extraction, using supercritical CO 2 As an extraction agent, it can realize the separation and purification of special polar components in complex matrices. The operation procedures of supercritical extraction devices are complicated and the cost is also high. In the process of large-scale industrial extraction, its built-in temperature control device is usually difficult to ensure the overall temperature. uniformity, leading to limitations in its application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The atomization extraction method in this example is: preheat the plant extract extract to 50°C, and then use a pressure atomizer to disperse the preheated plant extract extract into mist droplets under the condition of a pressure of 10MPa After that, it is continuously sprayed into the extraction tank, and at the same time, the solvent is continuously added to the extraction tank in a countercurrent manner, and the solvent in the extraction tank is fully contacted with the plant extract extract dispersed into mist droplets for atomization extraction, and the obtained The extract phase and the raffinate phase flow out continuously from the extraction tank; the plant extract is Andrographis paniculata extract, the solvent is dichloromethane, the specific gravity of the plant extract is 1.05, and the preheated plant The extraction extract is dispersed into mist droplets and the flow rate of continuous spraying into the extraction tank is preferably 10L / h, the flow rate at ...

Embodiment 2

[0025] The atomization extraction method in this example is: preheat the plant extract extract to 30°C, and then use a pressure atomizer to disperse the preheated plant extract extract into mist droplets under the condition of a pressure of 15MPa After that, it is continuously sprayed into the extraction tank, and at the same time, the solvent is continuously added to the extraction tank in a countercurrent manner, and the solvent in the extraction tank is fully contacted with the plant extract extract dispersed into mist droplets for atomization extraction, and the obtained The extract phase and the raffinate phase flow out continuously from the extraction tank; the plant extract extract is tea polyphenol extract, the solvent is ethyl acetate, and the specific gravity of the plant extract extract is 1.12. The plant extract extract is dispersed into mist droplets and the flow velocity that is continuously sprayed into the extraction tank is preferably 200L / h, and the flow veloc...

Embodiment 3

[0028] The atomization extraction method in this example is: preheat the plant extract extract to 35°C, and then use a pressure atomizer to disperse the preheated plant extract extract into mist droplets under the condition of a pressure of 18MPa After that, it is continuously sprayed into the extraction tank, and at the same time, the solvent is continuously added to the extraction tank in a co-current manner, and the solvent in the extraction tank is fully contacted with the plant extract extract dispersed into mist droplets for atomization extraction, to obtain The extract phase and raffinate phase flow out continuously from the extraction tank; the plant extract extract is angelica extract, the solvent is petroleum ether, the specific gravity of the plant extract extract is 1.08, and the plant extract after preheating The extraction extract is dispersed into mist droplets and the flow rate of continuous spraying into the extraction tank is preferably 200L / h, and the flow ra...

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Abstract

The invention discloses a dynamic and continuous atomizing extraction method. The method comprises the following steps: preheating a plant extract to 15 DEG C to 60 DEG C, then dispersing the preheated plant extract into mist-like liquid drops under the condition of a pressure of 0.1 MPa to 20 MPa, then continuously spraying the mist-like liquid drops into an extraction tank, continuously adding a solvent into the extraction tank in a manner of reverse flow or parallel flow at the same time, allowing the solvent and the plant extract dispersed into the mist-like liquid drops in the extraction tank to completely contact and carrying out atomizing extraction, and allowing an obtained extraction phase and a raffinate phase to continuously outflow from the extraction tank. The dynamic and continuous atomizing extraction method provided by the invention has the following advantages: operation is convenient; the usage amount of the solvent is small; meanwhile, continuous instantaneous extraction and thorough extraction effect can be realized; the recovery rate of effective components in the plant extract can reach up to 95% or above; extraction efficiency is high; and the method is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of extraction and separation of active ingredients of natural plants, and in particular relates to a dynamic and continuous atomization extraction method. Background technique [0002] Extraction, also known as solvent extraction or liquid-liquid extraction, also known as extraction, is a unit operation that uses the different solubility of the components in the system to separate the mixture. That is, the method of transferring a compound from one solvent to another by utilizing the difference in solubility or distribution coefficient of the compound in two mutually immiscible (or slightly soluble, emulsified) solvents. [0003] Traditional laboratory extraction requires the separatory funnel to be shaken continuously, and then left to separate. During the extraction and washing operations, the mixed solution is emulsified in the separatory funnel, forming an emulsion that is difficult to separate; in produ...

Claims

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Application Information

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IPC IPC(8): B01D11/04
CPCB01D11/04B01D2011/002B01D2011/005
Inventor 沈志刚徐辉李垣图华宁
Owner XIAN HONSON BIOTECH
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