Purified, moderately esterified polyol polyester fatty acid compositions and synthesis thereof
A technology of polyol fatty acid and polyol polyester, applied in the field of esterification of purified polyol fatty acid polyester and high-purity polyol fatty acid polyester
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Embodiment 1
[0161] In this example, the starting reaction mixture contained 750 g (0.314 moles) of sucrose polyester based on oleic acid fatty acid with a degree of esterification of 96%; 11.5 g (0.0336 moles) of sucrose; 10 g (0.072 moles) of potassium carbonate; and 200 g Dimethylformamide solvent. Sucrose and catalyst were dried in a vacuum oven for 12 hours before being used in the starting reaction mixture. The first step reaction product was formed by reacting the starting reaction mixture at 100°C for 300 minutes in a double-baffled glass reactor. The starting reaction mixture was reacted with stirring to ensure uniform heat distribution of the reaction components.
[0162] A sample of the first step reaction product was analyzed by supercritical fluid chromatography (SFC), and the resulting composition is shown in Table 1A, wherein SEX represents a sucrose ester with X esterified hydroxyl groups. A suitable superfluid chromatography method of analysis is described in US Patent 6...
Embodiment 2
[0167] In this example, the starting reaction mixture contained 750 g (0.314 moles) of sucrose polyester with a degree of esterification of 96%; 31.3 g (0.0916 moles) of sucrose; 10 g (0.072 moles) of potassium carbonate; and 300 g of dimethylsulfoxide solvent. The first step reaction product was formed by reacting the starting reaction mixture at 100°C for 300 minutes in a double-baffled glass reactor. The starting reaction mixture was reacted with stirring to ensure uniform heat distribution of the reaction components.
[0168] soap
sucrose
SE 1
SE 2
SE 3
SE 4
SE 5
SE 6
SE 7
SE 8
0.5
＜0.1％
-
-
0.7
5.5
21.0
36.0
28.0
8.4
[0169] Table 2A
[0170] The first step reaction product has a degree of esterification of about 75%.
[0171]The first step reaction product was then purified with 109 g of deionized water. This water wash step was carried o...
Embodiment 3
[0176] In this example, the starting reaction mixture contained 750 g (0.314 moles) of sucrose polyester with a degree of esterification of 96%; 59.1 g (0.1727 moles) of sucrose; 10 g (0.072 moles) of potassium carbonate; and 300 g of dimethylsulfoxide solvent. The first step reaction product was formed by reacting the starting reaction mixture at 100°C for 300 minutes in a double-baffled glass reactor. The starting reaction mixture was reacted with stirring to ensure uniform heat distribution of the reaction components.
[0177] soap
sucrose
SE 1
SE 2
SE 3
SE 4
SE 5
SE 6
SE 7
SE 8
0.5
＜0.1％
0.1
1.4
7.0
19.5
32.6
27.7
9.6
1.3
[0178] Table 3A
[0179] The first step reaction product has a degree of esterification of about 62%.
[0180] The first step reaction product was then purified with 170 g of deionized water. This water wash step was carr...
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