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Method for preparing emulsion by gas-driven emulsification

A gas-driven, emulsion technology, used in chemical instruments and methods, chemical/physical processes, dissolution, etc., can solve the problems of uneven droplet particle size and high production energy consumption, and achieve easy large-scale industrial production and low equipment requirements. , good dispersion effect

Inactive Publication Date: 2020-01-14
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the prepared essential oil emulsion has high stability, its droplet size is not uniform, and the production energy consumption is high

Method used

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  • Method for preparing emulsion by gas-driven emulsification
  • Method for preparing emulsion by gas-driven emulsification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of method that gas-driven emulsification prepares emulsion, concrete steps are: (1) take by weighing 10g squalane, 0.1g is mixed by the surfactant of fatty alcohol polyoxyethylene ether and glyceryl monostearate, wherein fat The mass ratio of alcohol polyoxyethylene ether to glyceryl monostearate is 1:1, add squalane and surfactant to 100g water at the same time, heat and stir at 50°C and 100rpm stirring speed for 20min, and mix well (2) After the solution system in step (1) is cooled to 30°C, use a pump to send the solution system into the gas-driven emulsification element with a flow rate of 5L / h, and use an air compressor to send air at 100L / h Enter the gas to drive the emulsification element, wherein the three hole diameters of the tee in the emulsification element are all 5mm, the inner diameter of the slender tube is 2mm, and the length of the slender tube is 30cm, and the emulsified squalane emulsion is obtained after emulsification; (3) The squalane emuls...

Embodiment 2

[0024] A method for preparing an emulsion by a gas-driven emulsifying element, the specific steps are: (1) Weighing 10g of simethicone oil, 4g of polyoxyethylene alkyl ester of fatty acid and polyoxyethylene sorbitan monostearate mixed Surfactant, wherein the mass ratio of fatty acid polyoxyethylene alkyl ester and polyoxyethylene sorbitan monostearate is 3:1, simethicone and surfactant are added to 90g water at the same time, at a temperature of 90°C , at a stirring speed of 600rpm, heat and stir for 60min, and mix evenly; 2) After the solution system in step 1) is cooled to 25°C, use a pump to send the solution system into the gas-driven emulsification element at a flow rate of 10L / h, and simultaneously use The air compressor sends air at 600L / h into the gas-driven emulsification element, in which the diameter of the three holes in the emulsification element is 8mm, the inner diameter of the slender tube is 1mm, and the length of the slender tube is 100cm. Finally, obtain a ...

Embodiment 3

[0026] A method for preparing an emulsion by gas-driven emulsifying elements, the specific steps are: (1) weighing 10 g of ginger oil and 1 g of sorbitan stearate. Add ginger oil and sorbitan stearate to 10g of water at the same time, heat and stir for 100min at a temperature of 70°C and a stirring speed of 1000rpm, and mix well; (2) Cool the solution system in step (1) to 5°C Finally, use a pump to send the solution system into the gas-driven emulsification element at a flow rate of 20L / h, and use an air compressor to send air into the gas-driven emulsification element at a rate of 800L / h, wherein the three holes in the emulsification element are Aperture is 5mm, and the internal diameter of slender tube is 2mm, and the length of slender tube is 2cm, obtains the ginger oil emulsion of primary emulsification after emulsification; Enter the gas to drive the emulsification element, repeat the emulsification operation, and circulate 10 times to obtain the ginger oil emulsion whic...

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Abstract

The invention discloses a method for preparing an emulsion by gas-driven emulsification. The method is as follows: (1) adding an oil phase and a surfactant into water, performing heating, and performing uniform mixing; (2) cooling the solution system in the step (1), then sending the solution system and a gas to a gas-driven emulsification element, and performing emulsification to obtain a primarily-emulsified emulsion; and (3) continuously introducing the primarily-emulsified emulsion in the step (2) to the gas-driven emulsification element, and circulating the emulsification operation to obtain the emulsion. An emulsification apparatus and the emulsification operation involved by the method are simple, the emulsification efficiency is high, and scale enlargement is easy. The prepared emulsion has small and controllable droplet particle sizes, and uniform dispersion, and has wide application prospects.

Description

technical field [0001] The invention relates to a method for preparing an emulsion by gas-driven emulsification, and belongs to the technical field of emulsion preparation. Background technique [0002] Emulsion is a dispersion system composed of one or several liquids dispersed in another immiscible liquid in the form of droplets, generally composed of oil phase, water phase and surfactant. Surfactants act as emulsifiers to coat newly formed droplets and provide a stable repulsion between droplet interfaces that strongly inhibits the subsequent recombination or association of emulsion droplets. Shearing is a necessary condition for the preparation of emulsions, and the single-phase droplets must be stretched and broken into smaller droplets through capillary instability. [0003] At present, the preparation methods of emulsions are divided into high-energy methods and low-energy methods. High-energy methods mainly include high-pressure homogeneous method, microfluidizatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/00C09K23/00
CPCC09K23/018
Inventor 张智亮居挺缪鑫峰李扬
Owner ZHEJIANG UNIV OF TECH
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