Olefin hydrocarbon epoxidation method
An epoxidation and olefin technology, applied in chemical instruments and methods, organic chemistry, molecular sieve catalysts, etc., can solve the problems of poor mass transfer effect, low catalyst activity, high production cost, and achieve reduced manufacturing cost, high catalyst activity, The effect of high production efficiency
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Embodiment 1
[0019] Dissolve 16.0 g of hexadecylamine (HDA) in 70 mL of H 2 O and 80 milliliters of ethanol in the mixed solution, stir until the solution is one phase, the solution is marked as A. Dissolve 65.0 g of tetraethyl orthosilicate in 30 milliliters of ethanol to prepare an ethanol solution of tetraethyl orthosilicate, which is denoted as B. 2.2 grams of titanium tetrachloride was added to the solution containing 2 milliliters of 30 (weight)% H 2 o 2In 10 milliliters of hydrochloric acid solution (1.0 mol / liter), be mixed with titanium tetrachloride solution, this solution is recorded as C. Add solution B and solution C to solution A at the same time, stir rapidly for 30 minutes and then crystallize for 24 hours. The resulting solid was then filtered and washed with water. The washed solid was dried at 110°C for 12 hours, and then calcined at 600°C for 4 hours to obtain the catalyst precursor. Add 50 milliliters of cumene solutions containing 4.0 grams of hexamethyldisilazan...
Embodiment 2
[0021] Except that the amount of titanium tetrachloride is 2.7 grams, all the other conditions are the same as [Example 1]. The specific surface area of the finished product Ti-HMS thus obtained is 850 m 2 / g, the pore volume is 0.79 cm 3 / g, the average pore diameter is
Embodiment 3
[0023] Except that the amount of titanium tetrachloride is 1.5 grams, all the other conditions are the same as [Example 1]. The specific surface area of the finished Ti-HMS catalyst thus obtained is 900 m 2 / g, the pore volume is 0.85 cm 3 / g, the average pore diameter is
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