Catalyst applied to production of 1,4-diacetoxybutane
A diacetoxybutane, catalyst technology, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, preparation of organic compounds, etc., can solve the problem of 1,4-diacetoxybutane Problems such as low butane yield and selectivity
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Embodiment 1
[0043] Preparation of hydrogenation catalyst:
[0044] ① Ammonium chloroplatinite ((NH 4 ) 2 PtCl 4 ) is dissolved in the hydrochloric acid aqueous solution that concentration is 8wt%, obtains impregnation solution 200ml, and 1L diameter 3mm, length 2cm, pore volume are 0.80cm 3 / g, the specific surface area is 1200cm 2 The coal-based cylindrical activated carbon carrier of / g is impregnated in the above-mentioned impregnating liquid, obtains catalyst precursor I;
[0045] ② Standing and aging for 24 hours to obtain catalyst precursor II;
[0046] ③ with a concentration of 8% (in N 2 h 4 ·H 2 The 500ml hydrazine hydrate of (2 weight ratio) reduces catalyst precursor II for 3h, obtains catalyst precursor III;
[0047] ④ washed with water to no chloride ion, dried at 50°C for 4 hours to obtain catalyst precursor IV;
[0048] ⑤ Indium acetate (In(OAc) containing 1.90g In 3 ·6H 2 O) 180ml of aqueous solution was impregnated on the catalyst precursor IV, and dried at 110...
Embodiment 2
[0054] Preparation of hydrogenation catalyst:
[0055] ① Ammonium chloroplatinite ((NH 4 ) 2 PtCl 4 ) is dissolved in the hydrochloric acid aqueous solution that concentration is 8wt%, obtains impregnation solution 200ml, and 1L diameter 3mm, length 2cm, pore volume are 0.80cm 3 / g, the specific surface area is 1200cm 2 The coal-based cylindrical activated carbon carrier of / g is impregnated in the above-mentioned impregnating liquid, obtains catalyst precursor I;
[0056] ② Standing and aging for 24 hours to obtain catalyst precursor II;
[0057] ③ with a concentration of 8% (in N 2 h 4 ·H 2 The 500ml hydrazine hydrate of (2 weight ratio) reduces catalyst precursor II for 3h, obtains catalyst precursor III;
[0058] ④ washed with water to no chloride ion, dried at 50°C for 4 hours to obtain catalyst precursor IV;
[0059] ⑤ The niobium oxalate containing 1.90g Nb ((C 2 HO 4 ) 5 Nb·6H 2 O) Fully dissolved in acetic acid aqueous solution with a concentration of 30w...
Embodiment 3
[0089] Preparation of hydrogenation catalyst:
[0090] ① Ammonium chloroplatinite ((NH 4 ) 2 PtCl 4 ) is dissolved in the hydrochloric acid aqueous solution that concentration is 8wt%, obtains impregnation solution 200ml, and 1L diameter 3mm, length 2cm, pore volume are 0.80cm 3 / g, the specific surface area is 1200cm 2 The coal-based cylindrical activated carbon carrier of / g is impregnated in the above-mentioned impregnating liquid, obtains catalyst precursor I;
[0091] ② Standing and aging for 24 hours to obtain catalyst precursor II;
[0092] ③ with a concentration of 8% (in N 2 h 4 ·H 2 The 500ml hydrazine hydrate of (2 weight ratio) reduces catalyst precursor II for 3h, obtains catalyst precursor III;
[0093] ④ washed with water to no chloride ion, dried at 50°C for 4 hours to obtain catalyst precursor IV;
[0094] ⑤ Ammonium metavanadate (NH 4 VO 3 ) aqueous solution 180ml, impregnated on the catalyst precursor IV, and dried at 110° C. for 4 hours to obtain...
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