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Catalyst constructed with keggin structure and multi-anions and cations, preparation method and application thereof

An anion, cation, and catalyst technology, applied in the direction of chemical instruments and methods, physical/chemical process catalysts, organic compounds/hydrides/coordination complex catalysts, etc., can solve the problem of high preparation and application costs, complex preparation process, and recyclable Poor usability and other problems, to achieve the effect of easy operation, simple preparation method and cheap preparation cost

Active Publication Date: 2017-04-19
西安思科赛实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The deficiencies of the prior art mainly lie in the complex preparation process, high preparation and application costs, and poor recyclability

Method used

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  • Catalyst constructed with keggin structure and multi-anions and cations, preparation method and application thereof
  • Catalyst constructed with keggin structure and multi-anions and cations, preparation method and application thereof
  • Catalyst constructed with keggin structure and multi-anions and cations, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] According to comparative example 1, comparative example 2, comparative example 3, comparative example 4, comparative example 5, respectively prepared Al 13 - Dodecyl Sulfonate, Al 13 -Dodecylbenzenesulfonate, Al 13 - Stearate, Al 13 - Palmitate or Al 13 -Lauryl benzoate. Under normal temperature, normal pressure and vigorous stirring, dissolve 0.1-10.0 g of phosphotungstic acid in ethanol to prepare a solution of 0.002 mol / L-0.02 mol / L, and weigh the above Al 13 Add 0.5-10.0 g of one or more salts into the above solution. Dry at 60-100 °C for 4-24 h, and bake at 100-200 °C for 2-24 h. Catalyst CAT-1 was prepared.

Embodiment 2

[0052] According to comparative example 1, comparative example 2, comparative example 3, comparative example 4, comparative example 5, respectively prepared Al 13 - Dodecyl Sulfonate, Al 13 -Dodecylbenzenesulfonate, Al 13 - Stearate, Al 13 - Palmitate or Al 13 -Lauryl benzoate. Under normal temperature, normal pressure and vigorous stirring, dissolve 0.5-10.0 g of phosphotungstic acid in N,N dimethylformamide or dimethyl sulfoxide to prepare a solution of 0.002 mol / L-0.02 mol / L, and weigh the phosphorus Add 0.5-10.0 g of tungstic acid into the above solution, and slowly evaporate to dryness over 2-5 days to dry the solvent N, N dimethylformamide or dimethyl sulfoxide. Dry at 60-100 °C for 4-24 h, and bake at 100-200 °C for 2-24 h. Catalyst CAT-2 was prepared.

Embodiment 3

[0054] According to comparative example 1, comparative example 2, comparative example 3, comparative example 4, comparative example 5, respectively prepared Al 13 - Dodecyl Sulfonate, Al 13 -Dodecylbenzenesulfonate, Al 13 - Stearate, Al 13 - Palmitate or Al 13 -Lauryl benzoate. Under normal temperature, normal pressure and vigorous stirring, dissolve 0.1-10.0 g phosphomolybdic acid in ethanol to prepare a solution of 0.002 mol / L-0.02 mol / L, and weigh Al 13 - Add 0.5-10.0 g of dodecylsulfonate to the above solution. Dry at 60-100°C for 4-24h, and bake at 100-200°C for 2-24h. Catalyst CAT-3 was prepared.

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PUM

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Abstract

The invention discloses a catalyst as well as a preparation method and an application thereof. The catalyst is characterized in that an anionic surfactant used as a template agent, a Keggin structural aluminum isopolyacid cation hybrid material prepared from an aluminum source is adopted, Keggin structural polyacid anions are introduced in the preparation process by adopting an impregnation method or an ion exchange method, washing and drying are carried out to prepare the catalyst. The catalyst comprises all components in parts by weight: 2-50 parts of Keggin structural aluminum isopolyacid cations, 2-20 parts of anionic surfactants and 96-30 parts of Keggin structural polyacid anions. The catalyst is high in oxidative desulfurization catalytic activity and high in recycling usability; therefore, the oxidative desulfurization catalyst is high in performance. The preparation method of the catalyst is simple, easy to operate and low in preparation cost.

Description

technical field [0001] The invention relates to a catalyst and its preparation method and application, in particular to a catalyst with a Keggin structure and polyanions and cations, its preparation method and its application in organic sulfur removal. Background technique [0002] National V standards will be gradually implemented for gasoline and diesel for vehicles, and the sulfur content of gasoline and diesel for vehicles must be controlled below 10 μg / g. Oxidative desulfurization has gradually attracted people's attention due to its advantages of high desulfurization rate and mild reaction conditions. As a solid acid catalyst, heteropolyacid (HPA) has been widely used in various reaction systems of acid catalysis and redox catalysis due to its excellent catalytic performance. Among them, the Keggin structure polyacid aluminum cation [AlO 4 al 12 (OH) 24 (H 2 O) 12 ] 7+ (Al 13 ) has a unique molecular structure and nano-molecular size, which is of great signifi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/18B01J31/16C10G27/04
Inventor 陈立东姜春杰王旭阳朱江宋鹏月杨广生李禹蒙于淼李翠
Owner 西安思科赛实业有限公司