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Ni-based bimetallic catalyst for preparing gamma-butyrolactone by selective hydrogenation of furanone

A bimetallic catalyst and catalyst technology, applied in the direction of metal/metal oxide/metal hydroxide catalyst, catalyst activation/preparation, physical/chemical process catalyst, etc., can solve the problem of expensive reagents, harsh conditions, low product yield, etc. question

Pending Publication Date: 2021-01-29
PETROCHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Early furanones were mainly synthesized from heterocyclic compounds through multi-step organic reactions, but these methods had problems such as expensive reagents, complicated steps, harsh conditions and low product yields

Method used

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  • Ni-based bimetallic catalyst for preparing gamma-butyrolactone by selective hydrogenation of furanone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] This embodiment provides a Ni 4.0 -Fe 1.0 / SiO 2 Catalyst, this catalyst preparation process is as follows:

[0068] 0.592g of Ni(NO 3 ) 2 ·6H 2 O and 0.217g of Fe(NO 3 ) 3 9H 2 O was dissolved in 4.5g of deionized water to make the metal active component precursor solution, and 3.0g of SiO was added 2 Obtain the metal active component precursor impregnation solution, aging for 12 hours after fully stirring, drying at 80°C for 12 hours, putting the dried catalyst into a muffle furnace and roasting at 450°C for 3 hours, and then using 50% H at 450°C 2 / N 2 Reduction for 5 hours to obtain a hydrogenation catalyst, denoted as Ni 4.0 -Fe 1.0 / SiO 2 .

Embodiment 2

[0070] This embodiment provides a Ni 4.0 -Fe 1.0 / SiO 2 (ethanol) catalyst, the catalyst preparation process is as follows:

[0071] 0.592g of Ni(NO 3 ) 2 ·6H 2 O and 0.217g of Fe(NO 3 ) 3 9H 2 O is dissolved in 4.9g of absolute ethanol to form the metal active component precursor solution, and 3.0g of SiO is added 2 Obtain the metal active component precursor impregnating liquid, after fully stirring, dry at room temperature for 12 hours, put the dried catalyst into a muffle furnace and bake at 450° C. for 3 hours, and then use 50% H at 450° C. 2 / N 2 Reduction for 5 hours, the hydrogenation catalyst was obtained as Ni 4.0 -Fe 1.0 / SiO 2 (ethanol).

Embodiment 3

[0073] This embodiment provides a Ni 4.0 -Co 1.0 / SiO 2 Catalyst, this catalyst preparation process is as follows:

[0074] 0.592g of Ni(NO 3 ) 2 ·6H 2 O and 0.148g of Co(NO 3 ) 2 ·6H 2 O was dissolved in 4.5g of deionized water to make the metal active component precursor solution, and 3.0g of SiO was added 2 Obtain the metal active component precursor impregnation solution, aging for 12 hours after fully stirring, drying at 80°C for 12 hours, putting the dried catalyst into a muffle furnace and roasting at 450°C for 3 hours, and then using 50% H at 450°C 2 / N 2 Reduction for 5 hours, the hydrogenation catalyst was obtained as Ni 4.0 -Co 1.0 / SiO 2 .

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Abstract

The invention provides a Ni-based bimetallic catalyst for preparing gamma-butyrolactone through selective hydrogenation of furanone. According to the catalyst, Ni is used as a main metal active component, Pt, Pd, Fe, Co, Cu or Zn is used as a second metal active component, and SiO2 or a metal oxide is used as a carrier; based on the mass of the carrier, the mass loading capacity of the main metalactive component is 0.5-5.0%, the mass loading capacity of the second metal active component is 0.5-5.0%, and the mass ratio of the main metal active component to the second metal active component is1:9-9:1. The catalyst is prepared by an isopyknic co-impregnation method, which comprises the following steps: attaching an impregnation liquid containing a main metal active component precursor and asecond metal active component precursor to a carrier, and conducting drying and roasting to obtain the catalyst. The catalyst can effectively catalyze selective hydrogenation of biomass-based furanone in a hydrogen atmosphere to prepare the high value-added chemical gamma-butyrolactone.

Description

technical field [0001] The invention relates to a Ni-based bimetallic catalyst, in particular to a Ni-based bimetallic catalyst capable of efficiently catalyzing the liquid-phase selective hydrogenation of biomass-based furanone to γ-butyrolactone. Background technique [0002] γ-butyrolactone is a very important organic chemical raw material and fine chemical intermediate. γ-butyrolactone is the raw material for the production of α-pyrrolidone (NKP) and N-methylpyrrolidone (NMP), from which high value-added products such as vinylpyrrolidone (NVP) and polyvinylpyrrolidone (PVP) can be derived, Widely used in lithium batteries, synthetic fibers, textiles, cosmetics, insulating materials and coatings and other fields. It can also be used to synthesize fine chemicals such as cyproamine, ciprofloxacin, naofukang, aminobutyric acid and vitamin B, and is also widely used in the fields of medicine, food and pesticides. In addition, γ-butyrolactone itself has the characteristics o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/755B01J23/89B01J37/02B01J37/08B01J37/18B01J35/10C07D307/33
CPCC07D307/33B01J23/755B01J23/892B01J37/0201B01J37/082B01J37/18B01J35/613B01J35/615
Inventor 王铁峰李晓丹李亚飞蓝晓程
Owner PETROCHINA CO LTD