Preparation method of fatty acid methyl ester ethoxylation catalyst
A technology of fatty acid methyl ester and ethoxylation, which is applied to the preparation of carboxylic acid esters, the preparation of organic compounds, and catalysts for physical/chemical processes, etc. It can solve problems such as low EO distribution index, few by-products, and narrow EO distribution.
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Embodiment 1
[0032] Put 2 mol of ethylenediamine and 6 mol of isopropanol in a three-neck flask with reflux condensation, stir and heat at 80°C for 30 minutes, and obtain mixture i after cooling; mix 2g of anhydrous magnesium acetate, 0.5g of anhydrous lanthanum nitrate and 100g of mixture i in In a three-necked flask with reflux condensation, stir and heat at 80°C for 30 minutes, and obtain mixture ii after cooling; add sulfuric acid with a concentration of 98wt% to mixture ii dropwise under strong stirring, so that the pH of the mixture is 6.0, and obtain mixture iii after cooling ; The mixture iii was dried in vacuum at 80° C. for 30 minutes, 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 temperature ...
Embodiment 2
[0036] Put 2mol of ethylenediamine and 6mol of isopropanol in a three-neck 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 cerium nitrate and 100g of mixture i in In a three-necked flask with reflux condensation, stir and heat at 80°C for 30 minutes, and obtain mixture ii after cooling; add sulfuric acid with a concentration of 98wt% to mixture ii dropwise under strong stirring, so that the pH of the mixture is 6.0, and obtain mixture iii after cooling ; The mixture iii was dried in vacuum at 80° C. for 30 minutes, 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 temperature at 150°C, t...
Embodiment 3
[0040] Put 2 mol of ethylenediamine and 6 mol of isopropanol in a three-necked flask with reflux condensation, stir and heat at 80°C for 30 minutes, and obtain mixture i after cooling; mix 2g of anhydrous barium acetate, 0.5g of anhydrous lanthanum nitrate and 100g of mixture i in In a three-necked flask with reflux condensation, stir and heat at 80°C for 30 minutes, and obtain mixture ii after cooling; add sulfuric acid with a concentration of 98wt% to mixture ii dropwise under strong stirring, so that the pH of the mixture is 6.0, and obtain mixture iii after cooling ; The mixture iii was dried in vacuum at 80° C. for 30 minutes, 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 temperature a...
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