A preparation method of loaded iron sba-15 and its application in the synthesis of structural phospholipids

A technology for phospholipids and fatty acids, which is applied in the field of catalyst preparation, can solve the problems that the application has not been effectively developed, and achieve the effects of good recyclability and reduction of production costs.

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

Currently, the application of metal-loaded SBA-15 in the preparation of structured phospholipids by catalyzing transesterification reactions has not been effectively exploited

Method used

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  • A preparation method of loaded iron sba-15 and its application in the synthesis of structural phospholipids
  • A preparation method of loaded iron sba-15 and its application in the synthesis of structural phospholipids
  • A preparation method of loaded iron sba-15 and its application in the synthesis of structural phospholipids

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preparation example Construction

[0038] The technical purpose of the first aspect of the present invention is to provide SBA-15 and the preparation method of iron-loaded SBA-15, including the preparation method of SBA-15 mesoporous molecular sieve and the step of modifying SBA-15 by loading metal iron.

[0039] The technical purpose of the second aspect of the present invention is to provide a method for synthesizing structural phospholipids, in which the iron-loaded SBA-15 and natural phospholipids are subjected to a heterogeneous catalytic reaction of transesterification.

Embodiment 1

[0041] The preparation method of loaded iron SBA-15 comprises the steps:

[0042] S1. Weigh SBA-15, ferric chloride and anhydrous methanol according to the weight ratio of 22:1:1700, mix them evenly, stir for 10 hours, rotate at a speed of 500r / min, filter with suction to get precipitate, and filter with anhydrous methanol 5 times the weight of the precipitate Wash the obtained precipitate, and dry it for 6 hours under the conditions of vacuum degree -0.04MPa and temperature 30°C;

[0043] S2. Put the dried precipitate obtained in step S1 into a muffle furnace, and heat it at 5°C / min to 400°C for 10 hours to obtain iron-loaded SBA-15.

[0044] Wherein, the preparation method of SBA-15 described in step S1 comprises the following steps:

[0045] S11. Weigh and mix the template agent P123, 1mol / L hydrochloric acid and deionized water according to the weight ratio of 3:25:5, stir at 30°C for 5h, and rotate at 1200r / min until the solution becomes clear;

[0046] S12. Weigh methy...

Embodiment 2

[0058] The preparation method of loaded iron SBA-15 comprises the steps:

[0059] S1. Weigh SBA-15, ferric nitrate and absolute ethanol according to the weight ratio of 27:4:2300 and mix them evenly, stir for 25 hours at a speed of 1200r / min, filter with suction to get the precipitate, and use 20 times the weight of the precipitate to filter with absolute ethanol Wash the obtained precipitate, and dry it for 12 hours under the conditions of vacuum degree -0.05MPa and temperature 40°C;

[0060] S2. Put the dried precipitate obtained in step S1 into a muffle furnace, and heat it at 10°C / min to 700°C for 5 hours to obtain iron-loaded SBA-15.

[0061] Wherein, the preparation method of SBA-15 described in step S1 comprises the following steps:

[0062] S11. Weigh the template agent F127, 4mol / L hydrochloric acid and deionized water according to the weight ratio of 7:35:10, mix them, stir at 80°C for 8 hours, and rotate at 500r / min until the solution becomes clear;

[0063] S12. ...

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Abstract

The invention discloses a method for preparing iron-loaded SBA-15. Using SBA-15, soluble iron salt and anhydrous organic solvent as raw materials, metallic iron is loaded onto SBA-15 mesoporous molecular sieves through an impregnation method. The method prepares The modified SBA‑15 has a larger specific surface area and stronger acidity. The invention also discloses the application of iron-loaded SBA‑15 in the synthesis of structural phospholipids, using phospholipids and fatty acids with different carbon chain lengths as raw materials, under the catalysis of modified SBA‑15, to obtain short and medium carbon chains, n‑3 Structural phospholipids of type or n‑6 fatty acids. The preparation method of the catalyst involved in the invention has simple process and low cost, and conforms to the development trend of green chemical industry. The method for synthesizing the structured phospholipids involved in the present invention has the advantages of economy, environmental protection, and high efficiency, and can overcome the disadvantages of the current enzymatic methods, such as expensive enzyme sources, difficult recovery, and lack of universal applicability, and further improve the preparation method of the 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 iron-loaded SBA-15 and its application in synthesizing phospholipids rich in medium and short carbon chains, n-3 type or n-6 type fatty acid structure. Background technique [0002] Phospholipids, as a basic component of cell membranes that maintain cell membrane permeability and promote intracellular oxygen transfer, play a key role in maintaining the normal metabolism of organisms and are important basic substances of life. Phospholipids can enhance vision, memory and bone function, and have various biological activities such as lowering blood fat, protecting liver, protecting liver, and anti-inflammation. In addition, phospholipid is also a natural surfactant, which has multiple properties such as emulsification, dispersion, and wetting. It can be used as a cosmetic additive to reduce the surface tension of the skin. Therefore, phos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/03C07F9/10
Inventor 张江华周大勇朱蓓薇郭伟徐同宽蔡伟杰贾进于鑫张万衡
Owner DALIAN POLYTECHNIC UNIVERSITY
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