A kind of preparation method of tri-n-octylamine
A technology of tri-n-octylamine and di-n-octylamine, which is applied in the field of preparation of tri-n-octylamine, can solve problems such as unsuitability for industrial production and cost issues, and achieve the effects of realizing waste utilization, reducing discharge of three wastes, and increasing economic benefits
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Embodiment 1
[0046] Preparation of alkaline earth metal oxide catalysts: Cu(NO 3 )2·3H 2 O, Ni(NO 3 )2·6H 2 O, Zn(NO 3 )2·6H 2 O, Mg(NO 3 )2·6H 2 O was dissolved in water, neutralized to neutral with sodium carbonate, and then added ZrO 2 As a catalyst carrier, stir evenly to form a paste, age in a water bath at 50±5°C for 5±1h, filter and dry with suction, roast at 450±10°C for 4±0.5h, and crush to below 400 meshes to obtain alkaline earth metal oxides catalyst.
[0047] Put 150 g of di-n-octylamine, 89 g of n-octanol, and 1.5 g of an alkaline earth metal oxide catalyst into a 500 ml four-necked reaction flask equipped with a hydrogen circulation and water separation device. After nitrogen replacement and hydrogen replacement, reduce the catalyst under a hydrogen atmosphere between 160-180°C for 1 hour, then increase the reaction temperature to 210-220°C, water will continue to be generated during the reaction, and after 5 hours, almost no water will come out, then take a sample f...
Embodiment 2
[0049] Preparation of alkaline earth metal oxide catalysts: Cu(NO 3 )2·3H 2 O, Ni(NO 3 )2·6H 2 O, Zn(NO 3 )2·6H 2 O, Mg(NO 3 )2·6H 2 O was dissolved in water, neutralized with ammonia water until neutral, then added calcium carbonate as a catalyst carrier, stirred evenly to form a paste, aged in a water bath at 50±5°C for 5±1h, filtered and dried, and roasted at 450±10°C for 4 ±0.5h, broken down to below 400 mesh, the alkaline earth metal oxide catalyst is prepared.
[0050] Put 150 g of di-n-octylamine, 97.2 g of n-octanol, and 3 g of an alkaline earth metal oxide catalyst into a 500 ml four-necked reaction flask equipped with a hydrogen circulation and water separation device. After nitrogen replacement and hydrogen replacement, reduce the catalyst under a hydrogen atmosphere at 160-190°C for 1 hour, then raise the reaction temperature to 200-230°C, water will continue to be generated during the reaction, and after 4 hours there is almost no water, then sample GC anal...
Embodiment 3
[0052] Preparation of alkaline earth metal oxide catalysts: Cu(NO 3 )2·3H 2 O, Ni(NO 3 )2·6H 2 O, dissolved in a certain amount of water, neutralized with ammonia water until neutral, then added calcium carbonate as a catalyst carrier, stirred evenly into a paste, aged in a water bath at 50±5°C for 5±1h, filtered and dried, 450± Calcined at 10°C for 4±0.5h, and crushed to below 400 mesh, the alkaline earth metal oxide catalyst was prepared.
[0053]Put 150 g of di-n-octylamine, 97.2 g of n-octanol, and 3 g of an alkaline earth metal oxide catalyst into a 500 ml four-necked reaction flask equipped with a hydrogen circulation and water separation device. After nitrogen replacement and hydrogen replacement, reduce the catalyst under a hydrogen atmosphere at 160-190°C for 1 hour, then increase the reaction temperature to 200-230°C, water will continue to be generated during the reaction, and after 4 hours there is almost no water, then sample GC analysis, Di-n-octylamine 1.3%,...
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