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A kind of preparation method of propylsulfonic acid group-modified sba-15 and its application in synthesizing structural phospholipids

A propyl sulfonic acid group and modified technology, which is applied in the fields of compounds of Group 5/15 elements of the periodic table, chemical instruments and methods, phosphorus organic compounds, etc. The effect of protecting the environment, reducing production costs, and good recyclability

Active Publication Date: 2021-09-24
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the application of modified SBA-15 in the preparation of structured phospholipids by catalyzing transesterification reactions has not been effectively developed.

Method used

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  • A kind of preparation method of propylsulfonic acid group-modified sba-15 and its application in synthesizing structural phospholipids
  • A kind of preparation method of propylsulfonic acid group-modified sba-15 and its application in synthesizing structural phospholipids
  • A kind of preparation method of propylsulfonic acid group-modified sba-15 and its application in synthesizing structural phospholipids

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[0044] The first aspect of the present invention provides the preparation method of SBA-15 and the SBA-15 catalyst containing propylsulfonic acid group, including the preparation method of SBA-15 molecular sieve and the step of modifying propylsulfonic acid group.

[0045] The technical purpose of the second aspect of the present invention is to provide a method for producing modified phospholipids, wherein the SBA-15 catalyst modified by propylsulfonic acid group is reacted with natural phospholipids.

Embodiment 1

[0047] The preparation method of propyl group sulfonic acid modified SBA-15 comprises the steps:

[0048] S1. Weigh SBA-15, 3-mercaptopropyltrimethoxysilane and absolute ethanol according to the weight ratio of 1:1:17, mix them evenly, reflux and stir at 110°C for 24 hours at a speed of 600r / min, and cool to At room temperature, filter with suction and collect the precipitate, which is SBA-15-Pr;

[0049] S2. Using methanol whose volume accounts for 1 / 3 of the volume of the extraction bottle, perform Soxhlet extraction on the SBA-15-Pr obtained in step S1 whose weight is 1 / 10 of the methanol, and remove the acrylic acid in the SBA-15-Pr precipitate at 70°C and reflux for 10 hours base silane, filter cake by suction filtration, dry under the condition of vacuum degree -0.03MPa, temperature 30℃ for 10h, and grind into powder;

[0050] S3. Weigh the powder obtained in step S2, hydrogen peroxide and methanol in a weight ratio of 1:28:7, mix at a speed of 600 r / min, stir at room t...

Embodiment 2

[0066] The preparation method of propyl group sulfonic acid modified SBA-15 comprises the steps:

[0067] S1. Weigh SBA-15, 3-mercaptopropyltrimethoxysilane and anhydrous methanol according to the weight ratio of 2:1:18, mix them evenly, reflux and stir for 25.5h under a nitrogen environment at 115°C, with a speed of 620r / min, and cool to room temperature, suction filtered and collected the precipitate, the resulting precipitate is SBA-15-Pr;

[0068] S2. Use dichloromethane whose volume accounts for 1 / 3 of the volume of the extraction bottle, perform Soxhlet extraction on the SBA-15-Pr obtained in step S1 whose weight is 1 / 100 of the dichloromethane, and remove SBA-15-Pr at 40°C and reflux for 10.5h The propylsilane in the Pr precipitate was suction-filtered to obtain a filter cake, dried for 11 hours at a vacuum degree of -0.01MPa and a temperature of 35°C, and ground into powder;

[0069] S3. Take the powder obtained in step S2, hydrogen peroxide and toluene and mix accord...

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Abstract

The invention discloses a method for preparing SBA-15 modified by propylsulfonic acid groups. SBA-15, propylsilane coupling agent and anhydrous organic solvent are used as raw materials to prepare SBA-15-Pr; SBA‑15‑Pr is sulfonated to obtain propyl sulfonic acid modified SBA‑15; the invention also discloses the application of propyl sulfonic modified SBA‑15 in the synthesis of structural phospholipids, using phospholipids and fatty acid methyl esters Or fatty acid ethyl ester as raw material, under the catalysis of SBA‑15 modified by propylsulfonic acid group, to obtain structural phospholipids. The modified phospholipids prepared by the present invention are catalyzed and produced by heterogeneous catalysts, which have no organic residues in industrially produced phospholipids, and can also solve the shortcomings of expensive enzyme sources, difficult recycling, and harsh reaction conditions in the process of enzymatic production of structural phospholipids. Improved preparation of structured phospholipids.

Description

technical field [0001] The invention relates to a preparation method and application of a catalyst, in particular to a preparation method of propylsulfonic acid group modified SBA-15 and its application in synthesizing structural phospholipids. Background technique [0002] Phospholipids are essential components of cellular infrastructure and play an important role in maintaining cell permeability and intracellular oxygen delivery. In addition, phospholipid is also a natural amphoteric surfactant, which has various properties such as emulsification, dispersion, and wetting, and can reduce skin surface tension and enhance bone function. Therefore, phospholipids have a wide range of applications in the fields of food, medicine, cosmetics, leather and industrial additives. Natural phospholipids exist in a wide range, and phospholipids exist in egg yolk, soybeans, and animal internal organs. Among them, soybean phospholipids are the most widely used in industrial production and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/04C07F9/11C07F9/09
Inventor 张江华杨莎莎朱蓓薇张绍印周大勇崔励徐同宽贾进闫昊冉朴海鑫
Owner DALIAN POLYTECHNIC UNIVERSITY
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