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Process for producing iodination vegetable oil fatty acid ethyl ester

A technology for fatty acid ethyl ester and vegetable oil, which is applied in the preparation of organic compounds, the preparation of carboxylic acid esters, chemical instruments and methods, etc., can solve the problems such as being unsuitable for industrial production and difficult to eliminate, and achieves simple equipment and product stability. Good, light effect

Active Publication Date: 2008-08-20
季珉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, trialkylchlorosilanes are used in this method, and trialkylchlorosilanes are easily hydrolyzed to generate high-boiling compounds, which are difficult to remove from the reaction mixture, so this method is not suitable for industrial production

Method used

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  • Process for producing iodination vegetable oil fatty acid ethyl ester
  • Process for producing iodination vegetable oil fatty acid ethyl ester
  • Process for producing iodination vegetable oil fatty acid ethyl ester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1). Synthesis of poppy seed oil fatty acid ethyl ester:

[0030] Raw material and source:

[0031] Poppy Seed Oil 【Gansu Nongken Medicine Station Vegetable Oil Factory】

[0032] Absolute ethanol [Shanghai Zhenxing Chemical No. 1 Factory, analytically pure]

[0033] Sodium carbonate [Shanghai Laboratory Reagent Co., Ltd. analytically pure]

[0034] Add 3.3g of sodium carbonate to 30ml of absolute ethanol, then add 100g of poppy seed oil, heat the reaction mixture to 40°C, stir and react at this temperature for 4 hours, then reclaim absolute ethanol by distillation under reduced pressure to obtain crude Poppy seed oil fatty acid ethyl ester, wash the crude poppy seed oil fatty acid ethyl ester with distilled water, to remove sodium carbonate and by-product glycerin, then dry under vacuum degree 400Pa, temperature 80 ℃, obtain 81g poppy seed oil fatty acid ethyl ester.

[0035] 2).Synthesis of stable iodinated poppy seed oil fatty acid ethyl ester

[0036] Raw material...

Embodiment 2

[0058] 1). Synthesis of olive oil fatty acid ethyl ester:

[0059] Raw material and source:

[0060] Olive oil 【Zhenxing Perfume Oil Refining Plant, Qingyuan District, Ji'an City, Jiangxi Province】

[0061] Absolute ethanol [Shanghai Zhenxing Chemical Factory No. 1, analytically pure]

[0062] Potassium sulfide [Sinopharm Chemical Reagent Co., Ltd., analytically pure]

[0063] Add 30g of potassium sulfide to 40ml of absolute ethanol, then add 100g of olive oil, heat the reaction mixture to 78°C, stir and react at this temperature for 10 hours, then recycle the absolute ethanol by distillation under reduced pressure to obtain crude olive oil Fatty acid ethyl ester, the crude olive oil fatty acid ethyl ester was washed with distilled water to remove potassium sulfide and by-product glycerin, and then dried at a vacuum degree of 1067Pa and a temperature of 120°C to obtain olive oil fatty acid ethyl ester.

[0064] 2). Synthesis of iodized olive oil fatty acid ethyl ester:

[...

Embodiment 3

[0071] A preparation method of stable iodized vegetable oil fatty acid ethyl ester, it comprises the steps:

[0072] 1). Preparation of vegetable oil fatty acid ethyl ester:

[0073] Raw material and source:

[0074] Grape Seed Oil 【Dalian Ruifang Biochemical Products Co., Ltd.】

[0075] Sunflower oil 【Dalian Ruifang Biochemical Products Co., Ltd.】

[0076] Linseed oil 【Shanghai Xianghui Biotechnology Co., Ltd.】

[0077] Safflower Seed Oil 【Shanghai Xianghui Biotechnology Co., Ltd.】

[0078] Corn oil [Hebei Xinji Xuxin Oil Company]

[0079] Absolute ethanol [Shanghai Zhenxing Chemical Factory No. 1, analytically pure]

[0080] Potassium carbonate [Sinopharm Chemical Reagent Co., Ltd., analytically pure]

[0081]Press vegetable oil: dehydrated alcohol: salt catalyst=100g: 60ml: 6g selects vegetable oil, dehydrated alcohol and salt catalyst, and described vegetable oil is grape seed oil, sunflower seed oil, linseed oil, safflower seed oil and corn oil The quality of grape...

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Abstract

The invention relates to a preparation method of a stable iodized plant oil fatty acid ethyl ester, which firstly puts the plant oil into ester exchange reaction with alcohol with the effect of salt catalyst so as to produce plant oil fatty acid ethyl ester which is then put into addition reaction with hydrogen iodide to produce the iodized plant oil fatty acid ethyl ester, then heating and air ventilating methods are used for eliminating unstable iodine being combined in the iodized plant oil fatty acid ethyl ester, and lopsidedness sodium sulfite solution is used for liquid seal of the separated free iodine so as to obtain the iodized plant oil fatty acid ethyl ester with good stability; the preparation method is characterized by small viscosity, good stability and low cost.

Description

technical field [0001] The invention relates to a preparation method of stable iodized vegetable oil fatty acid ethyl ester. Background technique [0002] In 1901, Dr. Marcel Guerbet, a Frenchman, successfully developed iodized oil, which was only applied to the surface of human skin for disinfection. In 1918, by chance, iodized poppy seed oil (Lipiodol) was discovered to have radiopaque properties, making it the world's first iodine-containing contrast agent for X-rays. In 1923, the French Sicard and Forestier successfully used iodized poppy seed oil (Lipiodol) for intravenous injection contrast, and then iodized poppy seed oil (Lipiodol) began to be used in radiology, becoming the world's first medical iodized contrast agent. In 1926, Guerbet (Garbet) company was established in France. After the company was established, it mainly produced iodized poppy seed oil (Lipiodol). The city of Saint-Ouen (Sain Ouen) established Garber Laboratory, specializing in the research, de...

Claims

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Application Information

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IPC IPC(8): C07C69/58C07C67/03C07C67/307
Inventor 奚江波李迎照陈俊尹传奇李世荣柏正武
Owner 季珉
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