Catalyzer for industrial production of 1,6-hexamethylene glycol and method of preparing the same
A technology of catalyst and hexanediol, which is applied in the preparation of hydroxyl compounds, chemical instruments and methods, and the preparation of organic compounds, can solve the problems of increased catalyst costs, high equipment requirements, and complicated catalyst processes, and achieve obvious social benefits and Economic benefits, uniform precipitation, good dispersion and thermal stability
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[0021] Example 1:
[0022]Mix 172.96 kilograms of copper nitrate and 289.06 kilograms of zinc nitrate, and dissolve them with 486 liters of deionized water to form a mixed salt solution; dissolve 36.22 kilograms of aluminum hydroxide in 855 liters of deionized water to prepare a suspension; add 15 kilograms of hydroxide Sodium and 318 kg of sodium carbonate are dissolved in 405 liters of deionized water to form a mixed alkali solution. The heating temperature is controlled to be between 50 and 90 ℃, and the mixed salt solution and aluminum hydroxide solution are neutralized with the alkali solution under stirring. The pH value is 7~8, the addition time is controlled for 4 hours, and the precipitate is produced at the same time. The precipitate is filtered, washed, dried at 100°C for 15 hours, granulated, baked at 200±5°C for 2 hours, and baked at 500±5°C The mixing agent was added for 1 hour and mixed uniformly, and finally pressed into a tablet to obtain catalyst I. The contents ...
Example Embodiment
[0023] Example 2.
[0024] Mix 86.48 kilograms of copper nitrate and 144.53 kilograms of zinc nitrate, and dissolve them with 243 liters of deionized water to form a mixed salt solution; dissolve 18.11 kilograms of aluminum hydroxide in 428 liters of deionized water to prepare a suspension; add 10 kilograms of hydroxide Sodium and 398 kg of sodium carbonate are dissolved in 315 liters of deionized water to form a mixed alkali solution. The heating temperature is controlled at 50-90°C, and the mixed salt solution and aluminum hydroxide solution are neutralized with the alkali solution under stirring to control the pH value 7~8, control the addition time for 4 hours, and produce the precipitate at the same time. The precipitate is filtered, washed, dried at 100°C for 15 hours, then granulated, calcined at 200±5°C for 2 hours, and calcined at 500±5°C for 1 After hours, the mixing agent is added and mixed uniformly, and finally compressed into tablets to obtain catalyst II. The conten...
Example Embodiment
[0025] Example 3.
[0026] Mix 136.13 kilograms of copper nitrate and 82.69 kilograms of zinc nitrate, and dissolve them with 375 liters of deionized water to form a mixed salt solution; dissolve 17.56 kilograms of aluminum hydroxide in 855 liters of deionized water to prepare a suspension; add 15 kilograms of hydroxide Sodium and 318 kg of sodium carbonate are dissolved in 405 liters of deionized water to form a mixed alkali solution. The heating temperature is controlled to be between 50 and 90 ℃, and the mixed salt solution and aluminum hydroxide solution are neutralized with the alkali solution under stirring. The pH value is 7~8, the addition time is controlled for 4 hours, and the precipitate is produced at the same time. The precipitate is filtered, washed, dried at 100°C for 15 hours, granulated, baked at 200±5°C for 2 hours, and baked at 500±5°C The mixing agent was added for 1 hour and mixed uniformly, and finally compressed into tablets to obtain catalyst III. The conte...
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