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Preparation method of iron loading SBA-15 and application thereof to synthesis of structural phospholipid

A technology of 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, achieve good recyclability and reduce production costs

Active Publication Date: 2019-05-17
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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  • Preparation method of iron loading SBA-15 and application thereof to synthesis of structural phospholipid
  • Preparation method of iron loading SBA-15 and application thereof to synthesis of structural phospholipid
  • Preparation method of iron loading SBA-15 and application thereof to synthesis of structural phospholipid

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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 preparation method of iron loading SBA-15. SBA-15, soluble ferric salt and an anhydrous organic solvent serve as raw materials, the metal iron is loaded on the SBA-15 mesoporous molecular sieve through a dipping method, and the modified SBA-15 prepared by adopting the method has a large specific surface area and high acidity. The invention further discloses application ofiron loading SBA-15 to synthesis of structural phospholipid. Phospholipid and fatty acid with different carbon chain lengths serve as raw materials, and structural phospholipid rich in medium-short carbon chain, n-3 type or n-6 type fatty acid is obtained through catalysis of modified SBA-15. The preparation method of the catalyst related to the invention is simple in technology and low in cost,and conforms to the development trend of green chemical engineering. The synthesis method of structural phospholipid related to the invention has the advantages of being economical, environmentally friendly and efficient, can overcome the problems that the enzyme sources are expensive, not prone to being recycled and are not universal in current enzyme method, and accordingly improves the preparation method of structural phospholipid.

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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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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