Catalysts for the production of monoethanolamine and diethanolamine
A technology of diethanolamine and a catalyst is applied in the field of catalysts for increasing the production of monoethanolamine and diethanolamine, and can solve the problems of stimulating the increase of monoethanolamine and diethanolamine output, increasing separation and production costs, and achieving the effect of good technical effect.
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Embodiment 1
[0060] 1. Molecular sieve preparation
[0061] a) NaOH is first dissolved in water to obtain solution I, and NaAlO 2 Add to solution I to obtain solution II, add TBABr to solution II to obtain solution III, and finally add 40% silica sol, NaCl, polyethylene glycol (10000) to solution III to obtain a raw material mixture, each raw material in the compound The molar ratio is: SiO 2 / Al 2 o 3 =50,H 2 O / SiO 2 =50, NaCl / SiO 2 =0.68, NaOH / SiO 2 =0.15, TBABr / SiO 2 =0.40, polyethylene glycol (10000) / SiO 2 = 0.02. b) Stir the raw material mixture prepared in step a) for 180 minutes, put it into a reaction kettle, and perform dynamic (200 rpm) crystallization at 170° C. for 72 hours. The crystallized product was quenched, filtered, washed with water until the pH value was 7, and dried at 120°C for 12 hours to obtain the original powder of ZSM-11 molecular sieve
[0062] The prepared ZSM-11 molecular sieve powder was mixed with 0.2mol L -1 Soak in ammonium nitrate solution wi...
Embodiment 2
[0073] 1. Molecular sieve preparation
[0074] a) NaOH is first dissolved in water to obtain solution I, and NaAlO 2 Add to solution I to obtain solution II, add TBABr to solution II to obtain solution III, and finally add 40% silica sol, NaCl, polyethylene glycol (10000) to solution III to obtain a raw material mixture, each raw material in the compound The molar ratio is: SiO 2 / Al 2 o 3 =50,H 2 O / SiO 2 =50, NaCl / SiO 2 =0.68, NaOH / SiO 2 =0.15, TBABr / SiO 2 =0.40, polyethylene glycol (10000) / SiO 2 = 0.02. b) Stir the raw material mixture prepared in step a) for 180 minutes, put it into a reaction kettle, and perform dynamic (200 rpm) crystallization at 170° C. for 72 hours. The crystallized product was quenched, filtered, washed with water until the pH value was 7, and dried at 120°C for 12 hours to obtain the original powder of ZSM-11 molecular sieve
[0075] The prepared ZSM-11 molecular sieve powder was mixed with 0.2mol L -1 Soak in ammonium nitrate solution wi...
Embodiment 3
[0086] 1. Molecular sieve preparation
[0087] a) NaOH is first dissolved in water to obtain solution I, and NaAlO 2 Add to solution I to obtain solution II, add TBABr to solution II to obtain solution III, and finally add 40% silica sol, NaCl, polyethylene glycol (10000) to solution III to obtain a raw material mixture, each raw material in the compound The molar ratio is: SiO 2 / Al 2 o 3 =50,H 2 O / SiO 2 =50, NaCl / SiO 2 =0.68, NaOH / SiO 2 =0.15, TBABr / SiO 2 =0.40, polyethylene glycol (10000) / SiO 2 = 0.02. b) Stir the raw material mixture prepared in step a) for 180 minutes, put it into a reaction kettle, and perform dynamic (200 rpm) crystallization at 170° C. for 72 hours. The crystallized product was quenched, filtered, washed with water until the pH value was 7, and dried at 120°C for 12 hours to obtain the original powder of ZSM-11 molecular sieve
[0088] The prepared ZSM-11 molecular sieve powder was mixed with 0.2mol L -1 Soak in ammonium nitrate solution wi...
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