Dimethylbenzyl alcohol hydrogenolysis catalyst as well as preparation method and application thereof
A technology of dimethylbenzyl alcohol and catalyst, applied in the field of dimethylbenzyl alcohol hydrogenolysis catalyst and preparation thereof, can solve the problems of high catalyst cost, poor selectivity, poor liquid resistance and the like, and achieves excellent activity and selectivity, The catalyst pores are unobstructed and the liquid resistance is good.
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Embodiment 1
[0106] The present embodiment provides a preparation method of a dimethylbenzyl alcohol hydrogenolysis catalyst, and the preparation method comprises the following steps:
[0107] (1) Preparation of solution:
[0108] 672.4g of water was first added into the reaction kettle, then 96.4g of copper formate, 24.7g of nickel formate and 85.6g of zinc formate were added, and mixed solution 1 was obtained by fully stirring and dissolving;
[0109] Dissolve 133.3 g of urea in 755.2 g of water to obtain an aqueous urea solution, and then add 78.0 g of alkaline silica sol (SiO 2 content of 30wt%, particle size of 30nm, pH of 9.0) and fully stirred to obtain mixed solution 2;
[0110] Add 11.6g γ-aminopropyltrimethoxysilane to 253.5g nano-silica ethanol solution (SiO 2 content is 20wt%, particle size is 30nm), fully stirring to obtain mixed solution 3;
[0111] 0.5g of palladium acetylacetonate and 4.2g of ruthenium acetylacetonate were dissolved in 93.8g of benzene, and fully stirred...
Embodiment 2
[0122] The present embodiment provides a preparation method of a dimethylbenzyl alcohol hydrogenolysis catalyst, and the preparation method comprises the following steps:
[0123] (1) Preparation of solution:
[0124] 672.4g of water was added into the reactor, then 124.8g of copper formate, 12.4g of nickel formate and 75.0g of zinc formate were added, and mixed solution 1 was obtained by fully stirring and dissolving;
[0125] Dissolve 145.9 g of urea in 583.5 g of water to obtain an aqueous urea solution, and then add 83.6 g of alkaline silica sol (SiO 2 content of 40wt%, particle size of 40nm, pH of 9.0) and fully stirred to obtain mixed solution 2;
[0126] Add 6.5g γ-aminopropyltriethoxysilane to 264.0g nano-silica ethanol solution (SiO 2 content is 20wt%, particle size is 30nm), fully stirring to obtain mixed solution 3;
[0127] 0.75g of palladium acetylacetonate and 2.4g of ruthenium acetylacetonate were dissolved in 62.8g of benzene, and fully stirred to obtain mix...
Embodiment 3
[0135] The present embodiment provides a preparation method of a dimethylbenzyl alcohol hydrogenolysis catalyst, and the preparation method comprises the following steps:
[0136] (1) Preparation of solution:
[0137] 750.3g of water was first added into the reaction kettle, then 113.5g of copper formate, 39.6g of nickel formate and 78.2g of zinc formate were added, and mixed solution 1 was obtained by fully stirring and dissolving;
[0138] Dissolve 189.3 g of urea in 441.6 g of water to obtain an aqueous urea solution, and then add 70.0 g of alkaline silica sol (SiO 2 content of 30wt%, particle size of 30nm, pH of 9.0) and fully stirred to obtain mixed solution 2;
[0139] Add 6.8g aniline methyl trimethoxysilane to 248.0g nano-silica propanol solution (SiO 2 content is 15wt%, particle size is 30nm), fully stirring to obtain mixed solution 3;
[0140] 0.90g of palladium acetylacetonate and 1.2g of ruthenium acetylacetonate were dissolved in 41.9g of chloroform, and fully ...
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