Raw materials formula for synthetic sucrose fatty ester and synthetic method thereof

A technology for sucrose fatty acid ester and sucrose ester, which is applied to the raw material formula for synthesizing sucrose fatty acid ester and the field of synthesis thereof, can solve the problems of limiting the popularization and application of solvent-free synthesis method, low conversion rate, difficult to achieve eutectic, etc. Effect of transesterification synthesis reaction, increasing contact area and improving conversion rate

Active Publication Date: 2009-08-26
杭州瑞霖化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Synthesis of sucrose esters by solvent-free method is non-toxic, short in time and low in cost, but it is difficult for sucrose and fatty acid methyl ester (or ethyl ester) in the reaction system to achieve eutectic under the action of a single fatty acid soap, causing a synthetic reaction The system is not uniform, and it is difficult to reach a homogeneous lev

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] In a 1000ml three-necked bottle with a stirring rod and a defoaming slurry, add 35 grams of fatty acid methyl ester, heat the oil bath to 80-100 ° C, and add 3 grams of accelerator sucrose ester (HLB11) and stearic acid under stirring. 30 grams of potassium, and then add 1.5 grams of magnesium carbonate and 2 grams of calcium oxide. After stirring evenly, 8 grams of hydroxylated modified soybean lecithin were added. After stirring evenly, finally add 160 grams of sucrose powder. Raise the temperature to 140-142° C. while maintaining a vacuum of 1500 Pa, stir and react for 65 minutes to obtain the crude sucrose ester. Then use the method of the prior art, that is, through organic solvent extraction and calcium oxide purification treatment (refer to European patent EP0448996), to obtain 137.25 grams of sucrose ester purified product. The yield is 69.32%. According to high-performance liquid chromatography analysis, the content of sucrose monoester is 57.82%, and the con...

Embodiment 2

[0025] In a 1000ml three-neck bottle with a stirring bar and a defoaming slurry, add 40 grams of fatty acid methyl ester, heat the oil bath to 90-100 ° C, and add 5 grams of accelerator sucrose ester (HLB 15) and stearin Potassium acid potassium 20 grams, then add sodium carbonate 1.5 grams, dipotassium hydrogen phosphate 2 grams. After stirring evenly, add 6 grams of hydroxylated modified soybean lecithin, after stirring for 1-5 minutes, finally add 140 grams of sucrose powder, raise the temperature to 143-145 ° C, maintain the vacuum degree at 3800 Pa, and stir for 165 minutes to obtain sucrose Crude ester product. Then use the method of the prior art, that is, through organic solvent extraction and calcium oxide purification treatment (refer to European patent EP0448996), obtain 151.7 grams of sucrose ester purified product, yield rate is 82.0%, through high-performance liquid chromatography analysis, its sucrose monoester The content of sucrose is 49.27%, and the content ...

Embodiment 3

[0027] In a 1000ml three-necked bottle with a stirring rod and a defoaming slurry, add 38 grams of fatty acid ethyl ester, heat the oil bath to 80-100 ° C, and add 5 grams of accelerator sucrose ester (HLB 13) and stearin 15 grams each of potassium stearate and lithium stearate, and then add 2 grams of Na2HPO4·12H2O and 1.5 grams of potassium carbonate. After stirring evenly, add 10 grams of hydrogenated modified corn lecithin. After stirring for another 1 to 5 minutes, finally add 166 grams of sucrose powder, raise the temperature to 138-140° C. while maintaining a vacuum of 1350 Pa, and stir for 70 minutes to obtain the crude sucrose ester. Then using the method of the prior art, that is, organic solvent extraction and calcium oxide purification (refer to European patent EP 0448996), 149.15 grams of purified sucrose esters were obtained, with a yield of 71.36%. According to high-performance liquid chromatography analysis, the sucrose monoester content is 58.27%, and the suc...

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Abstract

The invention discloses a raw materials formula for synthetic sucrose fatty ester and a synthetic method thereof, belonging to the chemical field. The raw materials formula includes, based on the weight part, 50 to 100 parts of sucrose, 20 to 80 parts of fatty acid methyl ester or ethyl ester, 0.2 to 8 parts of catalyst, 5 to 50 parts of fatty acid cationic soap salt, 1 to 20 parts of modified phospholipids, 0 to 8 parts of sucrose ester (HLB is 5 to 15) and 0 to 6 parts of sodium lactate. In the invention, the method that the composite catalyst is added in the system for synthesizing sucrose ester by the solvent-free method is adopted. The modified phospholipids are added so that the reaction in the system for synthesizing sucrose ester is more uniform, the congruent melting can reach rapidly, thus effectively improving the conversion rate of the sucrose ester and the content of the sucrose monoesters and total esters in the products.

Description

technical field [0001] The invention relates to a raw material formula for synthesizing sucrose fatty acid ester and a synthesis method thereof, belonging to the field of chemical industry. Background technique [0002] Sucrose Fatty Acid Esters (Stucrose Fatty Acid Esters referred to as SE) is a non-ionic surfactant with excellent performance and very safe. Commonwealth and Japan, China, the United States and other countries have approved food additives, can be used as emulsifiers, stabilizers, lubricants, regulators and antibacterial agents in food, as drugs and adjuvants in medicine, in cosmetics and washing It is used as an emulsifier and humectant in pharmaceuticals, and as a fruit preservative, pesticide adjuvant and plant growth promoter in agriculture. Because sucrose esters are non-toxic and have a wide range of applications, their synthesis and application research has attracted much attention. [0003] At present, most of the industrial synthesis methods of sucr...

Claims

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Application Information

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IPC IPC(8): C07H13/06C07H1/00
Inventor 袁长贵
Owner 杭州瑞霖化工有限公司
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