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Catalyst for preparation of 1, 4-diacetoxybutane from butadiene

A diacetoxybutane, catalyst technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, organic chemistry and other directions, can solve 1,4-diacetoxybutane High yield, low yield and selectivity of 1,4-diacetoxybutane

Active Publication Date: 2018-05-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One of the technical problems to be solved by the present invention is the low yield and selectivity of 1,4-diacetoxybutane, providing a new butadiene production process for 1,4-diacetoxybutane The catalyst has the characteristics of high yield and high selectivity of 1,4-diacetoxybutane

Method used

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  • Catalyst for preparation of 1, 4-diacetoxybutane from butadiene
  • Catalyst for preparation of 1, 4-diacetoxybutane from butadiene
  • Catalyst for preparation of 1, 4-diacetoxybutane from butadiene

Examples

Experimental program
Comparison scheme
Effect test

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] ⑤Scandium acetate (Sc(OAc) containing 1.92g Sc 3 ·6H 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 impregnating 180 ml of an aqueous solution of lithium acetate (LiOAc) containing 1.92 g Li on the catalyst precursor IV, and d...

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] ⑤The yttrium acetate (Y(OAc) containing 1.92g Y 3 4H 2 180ml of aqueous solution of O) was impregnated on the catalyst precurs...

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Abstract

The invention relates to a catalyst for preparation of 1, 4-diacetoxybutane from butadiene. The catalyst mainly solves the problem of a low yield and low selectivity of 1, 4-diacetoxybutane in the prior art. The catalyst comprises a carrier and active components. The carrier is activated carbon and the active components comprise a Pt element and a co-catalyst element. The co-catalyst element comprises at least one of group IIIB metals. The catalyst well solves the technical problem and can be used for industrial production of 1, 4-diacetoxybutane.

Description

technical field [0001] The invention relates to a catalyst for the process of producing 1,4-diacetoxybutane from butadiene. Background technique [0002] 1,4-Butanediol (1,4-BDO) is an important organic and fine chemical raw material, which is widely used in the fields of medicine, chemical industry, textile, papermaking, automobile and daily chemical industry. It can derive a series of high value-added fine chemical products. For example, tetrahydrofuran (THF), polybutylene terephthalate (PBT), γ-butyrolactone (GBL) and polyurethane resin (PU Resin) can be produced from 1,4-BDO, especially as the production of PBT engineering The basic raw material of plastic and PBT fiber has received extensive attention from research institutions. [0003] There are many process routes for the preparation of 1,4-butanediol. From the raw materials used, there are acetylene, ethylene, propylene, butadiene and maleic anhydride and other raw material routes. The same raw materials also have...

Claims

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Application Information

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IPC IPC(8): B01J23/58B01J23/63B01J35/10C07C67/055C07C67/283C07C69/16
CPCC07C67/055C07C67/283B01J23/58B01J23/63B01J35/618B01J35/635C07C69/16
Inventor 查晓钟杨运信
Owner CHINA PETROLEUM & CHEM CORP
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