The synthetic method of fatty acid methyl ester ethoxylation catalyst
A fatty acid methyl ester, ethoxylation technology, applied in physical/chemical process catalysts, chemical instruments and methods, organic compounds/hydrides/coordination complex catalysts, etc., can solve the problem of low EO distribution index and narrow EO distribution. , many by-products, etc.
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Embodiment 1
[0032] Put 40g of 2,3,6-trimethyl-β-cyclodextrin and 160g of isopropanol in a three-necked flask with reflux condensation, stir and heat at 80°C for 30min, and obtain mixture i after cooling; add 2g of anhydrous magnesium acetate, 0.5g of anhydrous ferric acetate and 100g of mixture i were placed in a three-necked flask with reflux condensation, stirred and heated at 80°C for 30min, and cooled to obtain mixture ii; sulfuric acid with a concentration of 98wt% was added dropwise to mixture ii under strong stirring, The pH of the mixture was 6.0, and the mixture iii was obtained after cooling; the mixture iii was vacuum-dried at 80° C. for 30 min, and the desired catalyst was obtained after cooling.
[0033] Add the above 1.0g catalyst to 100g methyl laurate, and put it into a 1L autoclave while stirring; the autoclave is heated to 80°C, vacuum-dried for 10min, and then replaced with high-purity nitrogen for 3 times, and the temperature is raised to 150°C. Introduce EO, keep the ...
Embodiment 2
[0036]Put 40g of 2,3,6-trimethyl-β-cyclodextrin and 160 g of isopropanol in a three-necked flask with reflux condensation, stir and heat at 80°C for 30min, and obtain mixture i after cooling; mix 2g of anhydrous magnesium acetate, 0.5g of anhydrous nickel acetate and 100g of mixture i were placed in a three-necked flask with reflux condensation, stirred and heated at 80°C for 30min, and cooled to obtain mixture ii; sulfuric acid with a concentration of 98wt% was added dropwise to mixture ii under strong stirring, The pH of the mixture was 6.0, and the mixture iii was obtained after cooling; the mixture iii was vacuum-dried at 80° C. for 30 min, and the desired catalyst was obtained after cooling.
[0037] Add the above 1.0g catalyst to 100g methyl laurate, and put it into a 1L autoclave while stirring; the autoclave is heated to 80°C, vacuum-dried for 10min, and then replaced with high-purity nitrogen for 3 times, and the temperature is raised to 150°C. Introduce EO, keep the ...
Embodiment 3
[0040] Put 40g of 2,3,6-trimethyl-β-cyclodextrin and 160g of isopropanol in a three-necked flask with reflux condensation, stir and heat at 80°C for 30min, and obtain mixture i after cooling; add 2g of anhydrous barium acetate, 0.5g of anhydrous ferric acetate and 100g of mixture i were placed in a three-necked flask with reflux condensation, stirred and heated at 80°C for 30min, and cooled to obtain mixture ii; sulfuric acid with a concentration of 98wt% was added dropwise to mixture ii under strong stirring, The pH of the mixture was 6.0, and the mixture iii was obtained after cooling; the mixture iii was vacuum-dried at 80° C. for 30 min, and the desired catalyst was obtained after cooling.
[0041] Add the above 1.0g catalyst to 100g methyl laurate, and put it into a 1L autoclave while stirring; the autoclave is heated to 80°C, vacuum-dried for 10min, and then replaced with high-purity nitrogen for 3 times, and the temperature is raised to 150°C. Introduce EO, keep the tem...
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