A method for preparing copper-containing mordenite catalyst
A technology of mordenite and catalyst, which is applied in the field of catalysis, can solve the problems such as difficult to improve the exchange degree of metal and zeolite, and achieve the effect of high methyl acetate selectivity, high conversion rate and simple process
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Embodiment 1
[0040] Prepare 500 milliliters of 0.2M copper chloride solution, add 1M ammonia water dropwise therein under the condition of mechanical stirring, and simultaneously use a pH meter to detect the change of the pH value of the solution. When the pH of the solution reaches 7.5, stop dripping ammonia, continue to stir for 0.5 hour, then weigh 50 grams of hydrogen-type mordenite produced by Tianjin Nanhua Catalyst Co., Ltd. (the same below), and its silicon-aluminum molar ratio (n SiO2 :n Al2O3 ) was 15, added to the above solution, and the mixture was stirred at 20°C for 1 hour to carry out ion exchange, then the mixture was suction filtered using a Buchner funnel, and the solution was washed with deionized water (20 ml×3) , the obtained solid sample was dried at 120°C for 2 hours, then transferred to a muffle furnace, baked in an air atmosphere of 550°C for 8 hours, taken out, pressed into tablets, and ground and sieved into 20-40 mesh particles. The copper content (% by weight...
Embodiment 2
[0042] Prepare 500 milliliters of 0.3M copper nitrate solution, add 1M ammonia water dropwise thereto under the condition of mechanical stirring, and simultaneously use a pH meter to detect the change of the pH value of the solution. When the pH of the solution reached 8.0, stop dripping ammonia, continue to stir for 0.5 hour, then take by weighing 50 grams of hydrogen-type mordenite produced by Tianjin Nanhua Catalyst Co., Ltd., its silicon-aluminum mol ratio (n SiO2 :n Al2O3 ) was 15, added to the above solution, and the mixture was stirred at 20°C for 1 hour to carry out ion exchange, then the mixture was suction filtered using a Buchner funnel, and the solution was washed with deionized water (20 ml×3) , the obtained solid sample was dried at 120°C for 2 hours, then transferred to a muffle furnace, baked in an air atmosphere of 550°C for 8 hours, taken out, pressed into tablets, and ground and sieved into 20-40 mesh particles. The copper content (% by weight) in the fini...
Embodiment 3
[0044] Prepare 500 milliliters of 0.3M copper acetate solution, add 1M ammonia water dropwise thereto under the condition of mechanical stirring, and simultaneously use a pH meter to detect the change of the pH value of the solution. When the pH of the solution reached 9.0, stop dripping ammonia, continue to stir for 0.5 hour, then take by weighing 50 grams of hydrogen-type mordenite produced by Tianjin Nanhua Catalyst Co., Ltd., its silicon-aluminum mol ratio (n SiO2 :n Al2O3 ) was 15, added to the above solution, and the mixture was stirred at 20°C for 1 hour to carry out ion exchange, then the mixture was suction filtered using a Buchner funnel, and the solution was washed with deionized water (20 ml×3) , the obtained solid sample was dried at 120°C for 2 hours, then transferred to a muffle furnace, baked in an air atmosphere of 550°C for 8 hours, taken out, pressed into tablets, and ground and sieved into 20-40 mesh particles. The copper content (% by weight) in the fini...
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