A kind of dimethyl benzyl alcohol hydrogenolysis catalyst and preparation method thereof
A technology of dimethylbenzyl alcohol and catalyst, applied in the field of catalysis, can solve the problems of poor cumene selectivity, high catalyst cost, poor selectivity, etc., and achieves high thermal stability and mechanical stability, excellent activity and selectivity, The effect of unobstructed catalyst pores
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Embodiment 1
[0065] (1) Add 500g of water, 1.85g of maltose and 40.12g of SAPO-11 molecular sieve into the reaction kettle and stir evenly.
[0066] (2) 243.0g copper nitrate (Cu(NO 3 ) 2 ·3H 2 O, 242), 123.5g 50wt% manganese nitrate solution (Mn(NO 3 ) 2 , 179) and 25.4g magnesium nitrate (Mg(NO 3 ) 2 ·6H 2 (2,256) was dissolved in 966.7g of water to prepare a mixed salt solution, and the preparation concentration was an aqueous solution of sodium carbonate of 15wt%, and the above two solutions were heated to 65° C. and then added dropwise to the aforementioned reaction kettle in parallel, and the dropping time was 60 minutes. , the temperature of the precipitation process is controlled at 65°C, and the pH value of the precipitation process is 7.0 (wherein, according to the pH value of the precipitation process, the amount of sodium carbonate aqueous solution is controlled to be 105% of the theoretically required amount for the metal particles to completely precipitate), and then ag...
Embodiment 2
[0075] (1) Add 500g of water, 3.00g of sucrose and 30.0g of SAPO-11 molecular sieve into the reaction kettle and stir evenly.
[0076] (2) 255.4g copper nitrate (Cu(NO 3 ) 2 ·3H 2 O, 242), 82.3g 50wt% manganese nitrate solution (Mn(NO 3 ) 2 , 179) and 101.8g magnesium nitrate (Mg(NO 3 ) 2 ·6H 2 (2,256) was dissolved in 1122.9g water to prepare mixed salt solution, the preparation concentration was 15wt% sodium carbonate aqueous solution, the above-mentioned two kinds of solutions were heated to 70° C. and then added dropwise to the aforementioned reaction kettle in parallel, and the dropping time was 60min , the temperature of the precipitation process is controlled at 70°C, and the pH value of the precipitation process is 7.0 (wherein, according to the pH value of the precipitation process, the amount of sodium carbonate aqueous solution is controlled to be 105% of the theoretically required amount to completely precipitate the metal particles), and then aged at 75°C fo...
Embodiment 3
[0083] (1) Add 500g of water, 5.83g of sucrose and 39.68g of SAPO-11 molecular sieve into the reactor and stir evenly.
[0084] (2) 212.6g copper nitrate (Cu(NO 3 ) 2 ·3H 2 O, 242), 115.3g 50wt% manganese nitrate solution (Mn(NO 3 ) 2 , 179) and 50.9g magnesium nitrate (Mg(NO 3 ) 2 ·6H 2 (2,256) was dissolved in 933.7g of water to prepare a mixed salt solution, and the preparation concentration was an aqueous solution of sodium carbonate of 15wt%, and the above two solutions were heated to 70° C. and then added dropwise to the aforementioned reaction kettle in parallel, and the dropping time was 40 minutes. , control the temperature of the precipitation process to 70°C, and the pH value of the precipitation process to be 7.0 (wherein, according to the pH value of the precipitation process, the amount of sodium carbonate aqueous solution is controlled to be 105% of the theoretically required amount to completely precipitate the metal particles), and then aged at 80°C for ...
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