Hydrogenation Catalyst of Butadiene to 1,4-Diacetoxybutane
A technology of diacetoxybutane and hydrogenation catalyst, applied in the directions of metal/metal oxide/metal hydroxide catalyst, catalyst activation/preparation, physical/chemical process catalyst, etc., can solve the problem of diacetoxybutane Problems such as low yield and selectivity
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Embodiment 1
[0042] Preparation of hydrogenation catalyst:
[0043] ① Ammonium chloroplatinite containing 2.05gPt ((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;
[0044] ② Standing and aging for 24 hours to obtain catalyst precursor II;
[0045] 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;
[0046] ④ washed with water to no chloride ion, dried at 50°C for 4 hours to obtain catalyst precursor IV;
[0047] ⑤ Manganese acetate (Mn(OAc) containing 1.95g Mn 2 4H 2 O) 180ml of aqueous solution was impregnated on the catalyst precursor...
Embodiment 2
[0053] Preparation of hydrogenation catalyst:
[0054] ① Ammonium chloroplatinite containing 2.05gPt ((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;
[0055] ② Standing and aging for 24 hours to obtain catalyst precursor II;
[0056] 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;
[0057] ④ washed with water to no chloride ion, dried at 50°C for 4 hours to obtain catalyst precursor IV;
[0058] ⑤ Ammonium tellurate containing 1.95g Te ((NH 4 ) 2 TeO 4 ) was fully dissolved in an aqueous acetic acid solution with a con...
Embodiment 3
[0088] Preparation of hydrogenation catalyst:
[0089] ① Ammonium chloroplatinite containing 2.05gPt ((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;
[0090] ② Standing and aging for 24 hours to obtain catalyst precursor II;
[0091] 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;
[0092] ④ washed with water to no chloride ion, dried at 50°C for 4 hours to obtain catalyst precursor IV;
[0093] ⑤ Ammonium perrhenate (NH 4 ReO 4 ) was dissolved in an aqueous acetic acid solution with a concentration of 10 wt%, to obtain...
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