Production method of Guerbet alcohol
A technology for Guerbet alcohols and fatty alcohols, applied in the field of preparing Guerbet alcohols, can solve the problems of reactor corrosion, catalysts that cannot be reused, and unresolved problems, so as to improve the yield, simplify the product post-treatment process, The effect of avoiding environmental problems
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Embodiment 1
[0022] Weighing 160g decanol, 40g MgO / NaY (loading capacity is 15% by weight) catalyzer, and 0.6g nickel powder are mixed and put into 250ml with stirring, in the three-necked reaction flask of water trap, fully stir and be warming up to 230 ℃, During the reaction process, the water produced by the reaction was continuously separated from the reaction system through the water separator, and the reaction was carried out for 60 minutes before the reaction was terminated. After the reactant was cooled, it was filtered. The filtrate can be distilled under reduced pressure to obtain C20 Guerbet alcohol with a purity of more than 95% (results are shown in Table 1). The filtered catalyst is recovered, washed with ethanol, filtered again, and then baked in an oven at 200°C for 3 Hour. The regenerated catalyst can continue to be used.
Embodiment 2
[0024] Weigh 160g octanol, 45g MgO / NaY (loading capacity is 8% by weight) catalyzer, and 0.4g nickel powder are mixed and put into 250ml with stirring, the three-necked reaction flask of water trap, fully stir and be warming up to 220 ℃, During the reaction process, the water produced by the reaction was continuously separated from the reaction system by a water separator, and the reaction was carried out for 50 minutes before the reaction was terminated. After the reactant was cooled, it was filtered. The filtrate can be distilled under reduced pressure to obtain C16 Guerbet alcohol with a purity of more than 95% (results are shown in Table 1). The filtered catalyst is recovered, washed with ethanol, filtered again, and then dried in an oven at 200°C for 3 Hour. The regenerated catalyst can continue to be used.
Embodiment 3
[0026] Weigh 160g dodecanol, 25g MgO / NaY (loading capacity is 25% by weight) catalyzer, and 0.6g nickel powder are mixed and put into 250ml three-necked reaction flasks that have stirring, water separator, fully stir and be warming up to 250 ℃ During the reaction process, the water produced by the reaction was continuously separated from the reaction system through the water separator, and the reaction was carried out for 80 minutes to terminate the reaction. After the reactant was cooled, it was filtered. The filtrate is distilled under reduced pressure to obtain C24 Guerbet alcohol with a purity of more than 95% (results are shown in Table 1). The catalyst that is filtered out is recovered, washed with ethanol, filtered again, and then baked in an oven at 200°C for 3 Hour. The regenerated catalyst can continue to be used.
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