A preparation method of zn-sba-15 composite material and its application in the synthesis of structural phospholipids

A technology of zn-sba-15 and composite materials, applied in the fields of applications, chemical instruments and methods, edible phospholipid compositions, etc., which can solve the problems of difficult recycling, limited reaction conditions, and high price

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

AI Technical Summary

Problems solved by technology

In recent years, a lot of researches have been done on enzyme-catalyzed synthesis of structural lipids. In this reaction process, a special modified lipid can be efficiently produced, but the disadvantages are that the biocatalyst lipase or phospholipase is expensive, not easy to recycle, and the reaction conditions not broad etc.

Method used

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  • A preparation method of zn-sba-15 composite material and its application in the synthesis of structural phospholipids
  • A preparation method of zn-sba-15 composite material and its application in the synthesis of structural phospholipids
  • A preparation method of zn-sba-15 composite material and its application in the synthesis of structural phospholipids

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preparation example Construction

[0039] The technical purpose of the first aspect of the present invention is to provide a preparation method of SBA-15 and Zn-SBA-15 composite material, including the preparation method of SBA-15 molecular sieve and the step of metal zinc loading modification.

[0040] The technical purpose of the second aspect of the present invention is to provide a method for producing modified phospholipids, wherein the above Zn-SBA-15 composite material and natural phospholipids are subjected to a heterogeneous catalytic reaction of transesterification.

Embodiment 1

[0042] The preparation method of Zn-SBA-15 composite material, comprises the steps:

[0043] S1. Weigh SBA-15, zinc chloride, and anhydrous methanol according to the weight ratio of 23:1:1800, mix them evenly, stir for 12 hours, rotate at 600r / min, and filter with suction to get the precipitate, and filter with anhydrous methanol 12 times the weight of the precipitate Wash the obtained precipitate, and dry it for 6 hours under the conditions of vacuum degree -0.03MPa and temperature 30°C;

[0044] S2. Put the dried precipitate obtained in step S1 into a muffle furnace, and heat it at 5°C / min to 300°C for 9h to obtain a Zn-SBA-15 composite material.

[0045] Wherein, the preparation method of SBA-15 described in step S1 comprises the following steps:

[0046] S11. Weigh and mix the template agent P123, 1mol / L hydrochloric acid and deionized water according to the weight ratio of 4:28:7, stir at 40°C for 4 hours, and rotate at 1000r / min until the solution becomes clear;

[004...

Embodiment 2

[0059] The preparation method of Zn-SBA-15 composite material, comprises the steps:

[0060] S1. Weigh SBA-15, zinc sulfate and absolute ethanol and mix according to the weight ratio of 27:3:2200, stir for 24 hours at a speed of 1000r / min, filter with suction to obtain precipitate, and filter with anhydrous propanol 4 times the weight of the precipitate Wash the obtained precipitate, and dry it for 10 hours under the conditions of vacuum degree -0.01MPa and temperature 45°C;

[0061] S2. Put the dried precipitate obtained in step S1 into a muffle furnace, and heat it at 10° C. / min to 600° C. for 5 hours for calcination to obtain a Zn-SBA-15 composite material.

[0062] Wherein, the preparation method of SBA-15 described in step S1 comprises the following steps:

[0063] S11. Weigh the template agent F127, 3mol / L hydrochloric acid and deionized water according to the weight ratio of 2:10:3, mix them, stir at 70°C for 6h, and rotate at 1000r / min until the solution becomes clear...

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Abstract

The invention discloses a preparation method of a Zn-SBA-15 composite material, which uses SBA-15, soluble zinc salt and anhydrous organic solvent as raw materials, and loads metal zinc on the SBA-15 molecular sieve through an impregnation method. The composite material has larger specific surface area and stronger acidity. The invention also discloses the application of Zn-SBA-15 composite material in synthesizing structural phospholipids, using phospholipids and fatty acids as raw materials, under the catalysis of Zn-SBA-15, to obtain structural phospholipids rich in fatty acids with different carbon chain lengths. The preparation method of the catalyst involved in the invention has the advantages of low cost, high catalytic performance of the product, etc., and conforms to the development trend of green chemical industry. The modified phospholipid synthesis method involved in the present invention has the advantages of economy, environmental protection, and high efficiency, and can solve the disadvantages of the enzymatic method, such as expensive enzyme sources, difficult recycling, and unsuitable reaction conditions, and finally improve the preparation method of structural phospholipids.

Description

technical field [0001] The invention relates to a preparation method and application of a catalyst, in particular to a preparation method of a Zn-SBA-15 composite material and its application in synthesizing structural phospholipids. Background technique [0002] Phospholipids are the basic components of cell membranes. They can maintain cell membrane permeability and promote intracellular oxygen transfer. They play a key role in maintaining the physiological activity of biofilms and the normal metabolism of the body. They are important basic substances of life. Phospholipids can enhance memory and are brain-building active factors; phospholipids can also prevent fatty liver and alcoholic liver, have multiple functions such as blood vessel scavengers, and enhance bone function. In addition, phospholipid is also a natural amphoteric surfactant, which has various properties such as emulsification, dispersion, and wetting, and can also reduce skin surface tension. Therefore, p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F9/10B01J29/03
Inventor 张江华杨莎莎朱蓓薇张绍印周大勇崔励王大鸷贾进王璐姜广艺
Owner DALIAN POLYTECHNIC UNIVERSITY
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