Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Device and method for separating methyl linolenate on basis of ionic liquid supporting liquid membrane

A technology of methyl linolenic acid and ionic liquid, applied in semi-permeable membrane separation, chemical instruments and methods, preparation of carboxylate, etc., can solve the problems of low purity, high cost, complicated operation, etc., achieve simple operation, prevent leakage liquid, the effect of broad application prospects

Active Publication Date: 2019-06-21
ZHEJIANG UNIV OF TECH
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these methods have been applied to a certain extent in the separation of polyunsaturated fatty acids, each has the problems of high cost, low purity or complicated operation.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device and method for separating methyl linolenate on basis of ionic liquid supporting liquid membrane
  • Device and method for separating methyl linolenate on basis of ionic liquid supporting liquid membrane
  • Device and method for separating methyl linolenate on basis of ionic liquid supporting liquid membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1 (50mg / mL raw material concentration-40.1mL / min flow rate-[C 4 mim] BF 4 )

[0039] 1) Preparation of tallow catalpa oil methyl ester raw material

[0040] The methyl esterification of tallow tree oil adopts a known method: weigh 20g of methanol and 1g of KOH, mix and dissolve them, add them to 100g of tallow tree oil, stir and reflux at 60°C for 1 hour, let stand to separate layers, and take the upper oil layer for use. Wash with water until neutral, and remove water in vacuum to obtain the raw material of tallow oil methyl ester. Through mass spectrometer and gas chromatograph, the content of methyl linolenic acid in tallow catalpa oil methyl ester raw material is 21.54%.

[0041] 2) Preparation of ionic liquid membrane solution

[0042] Take 0.5 mL of 1-butyl-3-methyl-imidazolium tetrafluoroborate [C 4 mim] BF 4 and 0.25g AgBF 4 Mix well in the centrifuge tube; add 0.6mL of 1-hexene as a pretreatment agent into the centrifuge tube, vortex shaker fo...

Embodiment 2

[0050] Embodiment 2 (100mg / mL raw material concentration-40.1mL / min flow velocity-[C 4 mim][BF 4 ])

[0051] On the basis of Example 1, the concentration of the petroleum ether solution of tallow oil methyl ester was changed to 100 mg / mL, and the remaining conditions were the same as in Example 1.

[0052] Take 1mL stripping solvent from the stripping phase tank 5 per hour for gas chromatography analysis; carry out 6 hours sampling analysis results: the mass content of methyl linolenate is 65.51%, the concentration is 0.3821mg / mL, the permeation flux of methyl linolenate 0.0728mg / (cm 2 h).

Embodiment 3

[0053] Embodiment 3 (50mg / mL raw material concentration-40.1mL / min flow rate-[C 8 mim][BF 4 ])

[0054] Change the kind of ionic liquid on the basis of embodiment 1 to be 1-octyl-3-methyl-imidazole tetrafluoroborate [C 8 mim] BF 4 , the addition volume of ionic liquid is constant, all the other conditions are the same as embodiment 1.

[0055] Take 1mL stripping solvent from the stripping phase tank 5 per hour for gas chromatography analysis; carry out 6 hours sampling analysis results: the mass content of methyl linolenate is 56.30%, the concentration is 0.5301mg / mL, the permeation flux of methyl linolenate 0.0979mg / (cm 2 h).

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Concentrationaaaaaaaaaa
Concentrationaaaaaaaaaa
Concentrationaaaaaaaaaa
Login to View More

Abstract

The invention discloses a device and method for separating methyl linolenate on the basis of an ionic liquid supporting liquid membrane. The device comprises a membrane reactor, a stripping phase conveying pump, a stripping phase tank, a raw material phase conveying pump and a raw material tank; a raw material liquid containing methyl linolenate is accommodated in the raw material tank; a stripping solvent is accommodated in the stripping phase tank; the ionic liquid supporting liquid membrane is arranged in the membrane reactor; the ionic liquid supporting liquid membrane divides the membranereactor into an upper membrane cavity and a lower membrane cavity; a liquid inlet of the upper membrane cavity is connected to a liquid outlet of the upper membrane cavity through the stripping phaseconveying pump and the stripping phase tank and through a pipeline to form a stripping phase pipeline circulating system; and a liquid inlet of the lower membrane cavity is connected to a liquid outlet of the lower membrane cavity through the raw material phase conveying pump and the raw material tank and through a pipeline to form a raw material phase pipeline circulating system. The ionic liquid supporting liquid membrane is formed by soaking a hydrophilic base membrane into ionic liquid membrane liquid taking Ag<+> as a carrier, so that high-purity methyl linolenate can be separated from vegetable oil methyl ester continuously.

Description

technical field [0001] The invention relates to the technical field of a production device for the separation and purification of methyl linolenate, in particular to a device and method for separating methyl linolenate based on an ionic liquid supported liquid membrane. Background technique [0002] Linolenic acid belongs to the omega-3 series of polyunsaturated fatty acids. It is the basic substance that constitutes cell membranes and biological enzymes. It has the functions of maintaining lipoprotein balance, regulating cholesterol metabolism, and lowering blood pressure and blood lipids. It is an essential fatty acid for the human body, but linolenic acid cannot It is synthesized by the human body and must be ingested from the outside world. [0003] Linolenic acid often exists with oleic acid, linoleic acid and palmitic acid in the form of glyceride in linseed oil, perilla seed oil, tallow tree oil and other vegetable oils. Since the properties of unsaturated fatty acid...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01D11/04B01D69/10B01D67/00C07C67/48C07C67/58C07C69/587
Inventor 陆向红陈倩霞钱行黄振云汪之禾计建炳
Owner ZHEJIANG UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com