Preparation method and application of graphene oxide polymer continuous bed and method for separating and enriching phytosterol

A polymer and graphene technology, applied in steroids, chemical instruments and methods, separation methods, etc., can solve the problems of unfriendly environment, cumbersome steps, low recovery rate, etc., and achieve the improvement and expansion of specific surface area and pore structure. Scope of application, simple effect of preparation method

Active Publication Date: 2018-01-19
HEBEI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The third object of the present invention is to provide a method for separating and enriching phytosterols, so as to solve the problems of existing phytosterol separation and enrichment methods with complicated steps, low recovery rate and unfriendly environment

Method used

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  • Preparation method and application of graphene oxide polymer continuous bed and method for separating and enriching phytosterol
  • Preparation method and application of graphene oxide polymer continuous bed and method for separating and enriching phytosterol
  • Preparation method and application of graphene oxide polymer continuous bed and method for separating and enriching phytosterol

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Experimental program
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Effect test

Embodiment 1

[0033] Mix 0.8 mg graphene oxide (GO), 20 mg benzoyl peroxide, 20 mg polyvinylpyrrolidone (PVP), 0.36 mL octene (C8), 0.36 mL triethylene glycol diacrylate (TEGDMA), 0.2 mL n-propanol , 0.16mL lauryl alcohol, and ultrasonically disperse for more than 30min. After the dispersion is uniform, add 200μL of N,N-dimethylaniline, mix thoroughly, and ultrasonically remove air bubbles. In the chromatographic column tube, after reacting in a water bath at 30°C for 2.5 hours, install the column head at both ends of the stainless steel chromatographic column tube, and then connect it to the high-performance liquid chromatography pump, use methanol as the mobile phase to remove the porogen in the column body and other unused porogens. The reacted soluble matter is washed away to obtain a continuous bed of graphene oxide modified organic polymer.

[0034] The microscopic morphology of the prepared continuous bed was observed with a scanning electron microscope, and the obtained results were...

Embodiment 2

[0039]Mix 0.1mg graphene oxide, 20mg benzoyl peroxide, 40mg polyvinylpyrrolidone, 0.30mL octene, 0.30mL triethylene glycol diacrylate, 0.2mL n-propanol, 0.16mL lauryl alcohol, and ultrasonically disperse for more than 30min. After dispersing evenly, add 200 μL of N,N-dimethylaniline, mix thoroughly, and ultrasonically remove air bubbles, pour the mixture into a 50 mm×4.6 mm I.D. stainless steel column tube, and react in a water bath at 30°C for 2.5 After h, a column head is installed at both ends of the stainless steel chromatographic column tube, and then connected to a high performance liquid chromatography pump, and other unreacted soluble substances such as porogens in the column are washed away with methanol as the mobile phase, to obtain Continuous beds of graphene oxide-modified organic polymers.

Embodiment 3

[0041] Mix 0.4mg graphene oxide, 20mg benzoyl peroxide, 40mg polyvinylpyrrolidone, 0.36mL octene, 0.36mL triethylene glycol diacrylate, 0.16mL n-propanol, 0.14mL lauryl alcohol, and ultrasonically disperse for more than 30min. After dispersing evenly, add 200 μL of N,N-dimethylaniline, mix well, and ultrasonically remove air bubbles, then pour the mixture into a 50 mm×4.6 mm I.D. , install the column head at both ends of the stainless steel chromatographic column tube, then connect it to the high performance liquid chromatography pump, use methanol as the mobile phase to wash away the porogen, solvent and other unreacted soluble substances in the column body, and obtain Continuous beds of graphene oxide-modified organic polymers.

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Abstract

The invention provides a preparation method and application of a graphene oxide polymer continuous bed and a method for separating and enriching phytosterol. The graphene oxide polymer continuous bedis prepared through adding graphene oxide with high mechanical strength and large specific surface area in a preparation process of an organic polymer continuous bed. The preparation method provided by the invention is simple, economical and practical; the specific surface area and a pore structure of the obtained continuous bed are improved and the acting force between the continuous bed and thephytosterol is increased; the phytosterol can be efficiently separated and enriched; an application range of a macromolecular integral material is expanded. The phytosterol is extracted by utilizing the prepared organic polymer continuous bed and a natural preparation with high additional value can be obtained; the environment pollution caused by the fact that distillates are discharged is reduced; the phytosterol has a wide application prospect and economic benefits.

Description

technical field [0001] The invention relates to a continuous bed of organic polymers, in particular to a preparation method, application and method for separating and enriching phytosterols of a continuous bed of graphene oxide polymers. Background technique [0002] Phytosterol is a natural active substance present in vegetable oils. The phytosterols purified from vegetable oils mainly include β-sitosterol, stigmasterol, campesterol and brassicasterol. Phytosterols have very important physiological functions. Since Peterson proved in 1915 that phytosterols have the function of lowering blood lipid levels in chickens fed with high cholesterol, a large number of epidemiological data and laboratory studies have shown that intake of more phytosterols and It is related to the low incidence of many chronic diseases in the population, such as coronary heart disease, cancer, benign prostatic hypertrophy, etc. Therefore, phytosterols have received more and more attention. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D15/10C08F271/02C08F210/14C08F222/20C08F2/44C08K3/04C08J9/26C07J9/00
Inventor 刘海燕崔贝姣白立改闫宏远李一鸣
Owner HEBEI UNIVERSITY
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