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New process for integrated reaction of methylation, methyl esterification and interchange esterification for plant oil deodorized distillate

A technology for deodorization of distillates and oils. It is used in the preparation of ester groups and hydroxyl groups, esterification of fatty acids, chemical instruments and methods, etc. It can solve problems such as widening differences in properties and increasing investment costs.

Inactive Publication Date: 2010-09-08
代斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Enlarging the difference in properties of each component, and then using the difference in physical and chemical properties of each component, combined with various separation and extraction methods, to obtain a high content of tocopherol, and finally directly methylate the high content of tocopherol to obtain a high content of d-α-tocopherol, which increases the investment cost

Method used

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  • New process for integrated reaction of methylation, methyl esterification and interchange esterification for plant oil deodorized distillate
  • New process for integrated reaction of methylation, methyl esterification and interchange esterification for plant oil deodorized distillate
  • New process for integrated reaction of methylation, methyl esterification and interchange esterification for plant oil deodorized distillate

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Experimental program
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Effect test

Embodiment 1

[0015] The effect of catalyst dosage on the integrated reaction of methylation, methyl esterification and transesterification in vegetable oil deodorization distillate is shown in Table 1.

[0016] Table 1. Effect of catalyst dosage on integrated process

[0017]

[0018] Reaction conditions: 20g vegetable oil deodorization distillate, temperature 230°C, pressure 1MPa, alcohol-oil ratio 5:1, reaction time 5h

Embodiment 2

[0020] The effect of alcohol-oil ratio on the integrated reaction of methylation, methylation and transesterification in vegetable oil deodorization distillate is shown in Table 2.

[0021] Table 2. Effect of alcohol-oil ratio on integrated process

[0022]

[0023] Reaction conditions: 20g vegetable oil deodorization distillate, temperature 230°C, pressure 1MPa, catalyst dosage 2g, reaction time 5h.

Embodiment 3

[0025] The effect of temperature on the integrated reaction of methylation, methylation and transesterification in vegetable oil deodorization distillate is shown in Table 3.

[0026] Table 3. Influence of temperature on chemical integration process

[0027]

[0028] Reaction conditions: 20g vegetable oil deodorization distillate, pressure 0.8MPa, catalyst dosage 2g, alcohol-oil ratio 4:1, reaction time 5h.

[0029] By investigating the influence of various factors on the integrated reaction of methylation, methyl esterification and transesterification in vegetable oil deodorization distillate, it was found that the reaction temperature and alcohol-oil ratio had a greater impact on the integrated reaction.

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Abstract

The invention relates to a new process for realizing the integrated reaction of methylation of non-alpha-tocopherol, methyl esterification of free fatty acid and interchange esterification of glyceride by utilizing a solid acid catalyst to comprehensively catalyze and transform plant oil deodorized distillate which is adopted as a raw material, which obtains excellent reaction effect; after the integrated reaction, the content of alpha-tocopherol in the tocopherol reaches more than 70 percent (which is required to reach more than 67.1 percent on the international market), the ester yield can reach more than 95 percent, and the interchange esterification rate reaches more than 95 percent. The new process is characterized by utilizing the same solid acid catalyst to comprehensively transform the plant oil deodorized distillate to realize the integrated reaction, and a promising industrial application prospect is realized. The reaction conditions: ratio of alcohol and oil is 3:1 to 7:1; reaction temperature is 220 to 280 DEG C; reaction time is 5 to 9 hours; consumption of catalyst is 5 to 15 percent (w / w deodorized distillate); and the nitrogen pressure is 0.6 to 1.2 MPa.

Description

[0001] Invention name [0002] A new integrated reaction process of methylation, methyl esterification and transesterification of vegetable oil deodorization distillate 1 Technical field [0003] The invention belongs to the technical field of "processing and utilization of by-products of food processing" in "food science and technology", and also relates to the technical field of "chemical reaction engineering" in "chemical engineering". Using vegetable oil deodorization distillate as raw material, solid acid as catalyst, carry out integrated reaction of methylation, methyl esterification and transesterification in a high-pressure reactor, and then continue to separate and purify, providing a comprehensive utilization of vegetable oil deodorization distillate A more economical method has been established, which has laid a good foundation for further industrial production. 2 background technology [0004] Oil deodorization is an important process in the oil refining process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11C3/00C11C3/04C11C3/10C07D311/72C07C69/003C07C67/08C07C67/03
Inventor 代斌李翠华赵月霞
Owner 代斌