A kind of preparation method of naphthyl sulfonic acid modified sba-15 and its application in the synthesis of phospholipid rich in unsaturated fatty acid structure

A technology of unsaturated fatty acid and naphthyl sulfonic acid group, which is applied in the field of catalyst preparation and can solve the problems that the application has not been effectively developed.

Active Publication Date: 2021-07-06
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

At present, the application of modified SBA-15 in the catalytic synthesis of novel structural phospholipids by transesterification has not been effectively developed

Method used

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  • A kind of preparation method of naphthyl sulfonic acid modified sba-15 and its application in the synthesis of phospholipid rich in unsaturated fatty acid structure
  • A kind of preparation method of naphthyl sulfonic acid modified sba-15 and its application in the synthesis of phospholipid rich in unsaturated fatty acid structure
  • A kind of preparation method of naphthyl sulfonic acid modified sba-15 and its application in the synthesis of phospholipid rich in unsaturated fatty acid structure

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preparation example Construction

[0044] The technical purpose of the first aspect of the present invention is to provide SBA-15 and the preparation method of SBA-15 catalyst containing naphthylsulfonic acid group, including the preparation method of SBA-15 molecular sieve and the step of modifying naphthylsulfonic acid group.

[0045] The technical purpose of the second aspect of the present invention is to provide a kind of method of producing modified phospholipid, the above SBA-15 solid acid modified by naphthyl sulfonic acid group and natural phospholipid carry out transesterification heterogeneous catalytic reaction.

Embodiment 1

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

[0048] S1. Weigh and mix SBA-15, naphthyltrimethoxysilane and absolute ethanol according to the weight ratio of 1:1:17, reflux and stir for 24 hours in a nitrogen atmosphere at 80°C at a speed of 600r / min, cool to room temperature, and pump Filter and collect precipitate, gained precipitate is SBA-15-Na;

[0049] S2. Using methanol whose volume accounts for 1 / 3 of the volume of the extraction bottle, perform Soxhlet extraction on the SBA-15-Na obtained in step S1 with an added amount of 1 / 10 of the methanol weight, and remove the SBA-15-Na precipitate at 70°C and reflux for 10 hours The naphthylsilane in the filter cake was obtained by suction filtration, dried at a vacuum degree of -0.03MPa and a temperature of 30°C for 10 hours, and ground into powder;

[0050] S3. Weigh the powder obtained in step S2 and anhydrous 1,2-dichloroethane and mix in a weight ratio of 1:150, reflux and ...

Embodiment 2

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

[0067] S1. Weigh and mix SBA-15, naphthyltriethoxysilane and anhydrous methanol according to the weight ratio of 3:3:20, reflux and stir for 30h under nitrogen atmosphere at 70°C, at a speed of 1000r / min, and cool to room temperature. Suction filtration and collection of precipitate, the resulting precipitate is SBA-15-Na;

[0068] S2. Use ethylbenzene whose volume accounts for 1 / 3 of the volume of the extraction bottle, perform Soxhlet extraction on the SBA-15-Na obtained in step S1 with an added amount of 1 / 100 of the ethylbenzene weight, and remove SBA-15-Na at 140°C and reflux for 12 hours. Naphthylsilane in the Na precipitate was suction-filtered to obtain a filter cake, dried at a vacuum degree of -0.06MPa and a temperature of 100°C for 14 hours, and ground into powder;

[0069] S3. Weigh the powder obtained in step S2 and anhydrous 1,2-dibromoethane and mix in a weight ratio ...

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Abstract

The invention discloses a preparation method of naphthyl sulfonic acid group modified SBA-15, which uses SBA-15, naphthyl silane coupling agent and anhydrous organic solvent as raw materials to prepare SBA-15-Na; SBA‑15‑Na is sulfonated to obtain naphthylsulfonic acid group modified SBA‑15; the present invention also discloses the application of naphthylsulfonic acid group modified SBA‑15 in the synthesis of novel structural phospholipids, with phospholipids and unsaturated Fatty acid methyl ester or unsaturated fatty acid ethyl ester is used as raw material, and under the catalysis of naphthylsulfonic acid modified SBA-15, the n-3 type, n-6 type, n-7 type and n-9 type unsaturated fatty acids are obtained. Structural phospholipids of saturated fatty acids. The modified phospholipid prepared by the present invention expands the application scope of phospholipids in medicine and food, expands the application market of phospholipids; solves the disadvantages of high price and difficult recovery of lipase or phospholipase in the process of enzymatic production of structural phospholipids, and improves the structure Preparation method of phospholipids.

Description

technical field [0001] The invention relates to a preparation method and application of a catalyst, in particular to a preparation method of naphthylsulfonic acid group-modified SBA-15 and its application in synthesizing structural phospholipids rich in polyunsaturated fatty acids. Background technique [0002] Phospholipids are an essential component of the basic structure of cells, and play an important role in maintaining cell permeability and intracellular oxygen transmission; phospholipids can enhance memory and are brain-building active factors; phospholipids can also resist fatty liver and alcoholic liver, and have blood vessel scavenger and other functions. Therefore, phospholipids are widely used in food, medicine and other fields. Natural phospholipids exist in a wide range. Phospholipids exist in soybeans, egg yolks, and animal internal organs. Among them, soybean phospholipids are the most widely used because of their large output and low price. [0003] Natura...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F9/10C07F9/09C07F9/117B01J31/02B01J35/10
Inventor 张江华周大勇朱蓓薇崔励姜鹏飞贾进刘中原张振新谭智峰
Owner DALIAN POLYTECHNIC UNIVERSITY
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