Strong acid type solid catalyst, and preparation method and application thereof
A solid catalyst, strong acid type technology, applied in chemical instruments and methods, preparation of organic compounds, physical/chemical process catalysts, etc., can solve problems such as low yield and slow reaction
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Embodiment 1
[0026] Preparation of phenolic resin prepolymer solution: Add 8.6g phenol and 2.7g formaldehyde solution (37wt%) to 565g sodium hydroxide solution with a molar concentration of 0.05mol / L, heat and reflux for 30 minutes under stirring to form a clear solution for later use .
[0027] Preparation of mesoporous polymer material: add 11.3g EO to 100g deionized water 20 PO 70 EO 20 , stirred at room temperature until EO 20 PO 70 EO 20 Dissolve completely, add the aforementioned prepared phenolic resin prepolymer solution, 20 O C stirred and reacted for 10 days, and the resulting precipitate was filtered and dried at 250 O C, after calcination under the protection of nitrogen for 2 hours, the mesoporous polymer material was obtained.
[0028] Immerse 3 grams of Nafion (60 grams of 5% Nafion water-alcohol solution, Dupont) in 10 grams of the prepared mesoporous polymer material, reflux at 50oC for 8 hours, and dry the obtained solid at room temperature for 8 hours before dryin...
Embodiment 2
[0031] Preparation of phenolic resin prepolymer solution: Add 10.0g of phenol and 4.0g of formaldehyde solution (37wt%) into 70g of sodium acetate solution with a molar concentration of 0.2mol / L, heat and reflux under stirring for 30 minutes to form a clear solution for later use.
[0032] Preparation of mesoporous polymer material: add 5.6g EO to 134g deionized water 132 PO 60 EO 13 , stirred at room temperature until EO 132 PO 60 EO 13 Dissolve completely, add the aforementioned prepared phenolic resin prepolymer solution, 120 O C stirring and reacting for 10 hours, the resulting precipitate was filtered and dried, and the non-ionic surfactant was extracted with ethanol backflow to obtain a mesoporous polymer material.
[0033] Immerse 1 gram of Nafion (100 grams of 1% Nafion water-alcohol solution, Dupont) in 10 grams of the prepared mesoporous polymer material, reflux at 80°C for 2 hours, and dry the obtained solid at room temperature for 24 hours before The final Na...
Embodiment 3
[0036] Preparation of phenolic resin prepolymer solution: Add 2.5g phenol and 11.5g formaldehyde solution (37wt%) to 100g potassium hydroxide solution with a molar concentration of 0.2mol / L, heat and reflux under stirring for 30 minutes to form a clear solution for later use .
[0037] Preparation of mesoporous polymer material: add 9.6g EO to 100g deionized water 106 BO 70 EO 106 , stirred at room temperature until EO 106 BO 70 EO 106 Dissolve completely, add the aforementioned prepared phenolic resin prepolymer solution, 100 O C stirred and reacted for 10 h, the obtained precipitate was filtered and dried, and the non-ionic surfactant was extracted with hydrochloric acid / water / ethanol under reflux to obtain a mesoporous polymer material.
[0038] 5 grams of Nafion (200 grams of 2.5% Nafion water-alcoholic solution, Dupont) was impregnated in 10 grams of the prepared mesoporous polymer material, refluxed at 50°C for 8 hours, and the obtained solid was dried at room temp...
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Abstract
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