Method used for synthesizing 1,3-propanediol
A technology of propylene glycol and compound, applied in the field of synthesizing 1,3-propylene glycol, can solve the problems of low yield and selectivity of propylene glycol, and achieve the effect of improving activity and stability
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Embodiment 1
[0027] Preparation of hydroformylation catalyst support II: 0.80 L of ammonium fluorosilicate aqueous solution containing 2.50 gF and 1.0 L of spherical SiO with a diameter of 5.6 mm 2 Carriers were mixed and dried at 100° C. to obtain the catalyst carrier precursor I. Fully mix 0.60g of rubidium hydroxide powder with 5.0g of silica sol with a concentration of 35wt% to obtain a coating solution, and spray the coating solution evenly on 1.0L of catalyst carrier precursor I, dry at 100°C, and place in a muffle furnace at 500°C The catalyst support II is obtained after calcination. The carrier was analyzed by IC and ICP, and the F content was 2.45g / L, and the Rb content was 0.49g / L.
[0028] The preparation of hydroformylation main catalyst: the RhCl that will contain 6.50gRh 3 ·3H 2 O was dissolved in pure water to obtain 500ml of impregnating solution, and 1.0L of the catalyst carrier II was impregnated in the above impregnating solution, left to stand for 3h and dried at 10...
Embodiment 2
[0066] Preparation of hydroformylation catalyst support II: 0.80 L of ammonium fluoride aqueous solution containing 2.50 gF and 1.0 L of spherical SiO with a diameter of 5.6 mm 2Carriers were mixed and dried at 100° C. to obtain the catalyst carrier precursor I. Fully mix 1.07g of lithium oxide powder with 5.0g of silica sol with a concentration of 35wt% to obtain a coating solution, spray the coating solution evenly on 1.0L of catalyst carrier precursor I, dry at 100°C, and bake in a muffle furnace at 500°C Finally, the catalyst carrier II is obtained. The carrier was analyzed by IC and ICP, and the F content was 2.45g / L, and the Li content was 0.49g / L.
[0067] The preparation of hydroformylation main catalyst: the RhCl that will contain 6.50gRh 3 ·3H 2 O was dissolved in pure water to obtain 500ml of impregnating solution, and 1.0L of the catalyst carrier II was impregnated in the above impregnating solution, left to stand for 3h and dried at 100°C. 2 In the atmosphere,...
Embodiment 3
[0075] Preparation of hydroformylation catalyst carrier II: 0.80L of hydrofluoric acid aqueous solution containing 0.52gF and 1.0L of spherical SiO with a diameter of 5.6mm 2 Carriers were mixed and dried at 100° C. to obtain the catalyst carrier precursor I. Fully mix 0.16g of sodium oxide powder with 1.0g of silica sol with a concentration of 35wt% to obtain a coating solution, spray the coating solution evenly on 1.0L of catalyst carrier precursor I, dry at 100°C, and bake in a muffle furnace at 500°C Finally, the catalyst carrier II is obtained. The carrier was analyzed by IC and ICP, and the F content was 0.51g / L, and the Na content was 0.11g / L.
[0076] The preparation of hydroformylation main catalyst: the RhCl that will contain 6.50gRh 3 ·3H 2 O was dissolved in pure water to obtain 500ml of impregnating solution, and 1.0L of the catalyst carrier II was impregnated in the above impregnating solution, left to stand for 3h and dried at 100°C. 2 In the atmosphere, the...
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