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Catalyst for preparing hydrogenated terphenyl as well as preparation method and application thereof

A technology for hydrogenation of terphenyls and catalysts, which is applied in the direction of catalyst activation/preparation, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., and can solve problems such as poor selectivity, low catalytic efficiency of catalysts, and high production costs. problems, to achieve the effect of high selectivity, good promotion and application value, and small investment in equipment

Inactive Publication Date: 2020-08-04
JIANGSU XINHE AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The object of the present invention is to provide a catalyst for the preparation of hydrogenated terphenyls and its preparation method and application, the catalyst comprises a carrier and an active component, the carrier comprises MgO, the active component comprises a NiB compound, the The molar ratio of Ni and B in the NiB compound is 1:(0.34-0.4), and the catalyst is used in the process of catalytically mixing terphenyl hydrogenation to prepare hydrogenated terphenyl, and has good selectivity, high conversion rate, and many application times. advantages, and the preparation process of the catalyst is simple and the cost is low, and it is applied to the catalytic preparation of hydrogenated terphenyls, which solves the problems of low catalytic efficiency, poor selectivity and high production cost of catalysts in the traditional hydrogenated terphenyls preparation process

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  • Catalyst for preparing hydrogenated terphenyl as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0066] In the catalyst described in this example, MgO is used as the carrier, NiB compound is the active component, the molar ratio of Ni and B is 2.5, and the mass percentage of NiB compound in the catalyst is 14.79%; the active component is amorphous State form exists, and the particle diameter of described carrier is 270nm; The preparation method of described catalyst comprises the following steps:

[0067] (1) Add 50g of MgO powder to 100mL of AgNO 3 solution (control loading Ag mass fraction is 0.12%), stirred at 313K for 4h, then the sample was suction filtered, and air-dried for 24h to obtain Ag 2 O / MgO spare;

[0068] (2) the Ag in the step (1) of 1.6g 2 O / MgO powder is added in the NiB bath of 150mL (plating bath composition is: 5g / L KBH 4 , 12g / L NiSO 4 ·6H 2 (0, 12g / L ethylenediamine and 22g / L NaOH), then heated and stirred in a 318K water bath for 30min to obtain a black NiB / MgO amorphous catalyst; the catalyst was washed with deionized water to neutrality and...

Embodiment 2

[0072] In the catalyst described in this example, MgO is used as the carrier, NiB compound is the active component, the molar ratio of Ni and B is 2.5, and the mass percentage of NiB compound in the catalyst is 14.79%; the active component is amorphous State form exists, and the particle diameter of described carrier is 280nm; The preparation method of described catalyst comprises the following steps:

[0073] (1) Add 50g of MgO powder to 100mL of AgNO 3 solution (control loading Ag mass fraction is 0.12%), stirred at 313K for 4h, then the sample was suction filtered, and air-dried for 24h to obtain Ag 2 O / MgO spare;

[0074] (2) the Ag in the step (1) of 1.6g 2 O / MgO powder is added in the NiB bath of 150mL (plating bath composition is 5g / L KBH 4 , 12g / L NiSO 4 ·6H 2 (0, 16g / L ethylenediamine and 35g / L NaOH). Then heated and stirred in a 318K water bath for 30 minutes to obtain a black NiB / MgO amorphous catalyst; the catalyst was washed with deionized water until neutra...

Embodiment 3

[0077] In the catalyst described in this example, MgO is used as the carrier, NiB compound is the active component, the molar ratio of Ni and B is 2.82, and the mass percentage of NiB compound in the catalyst is 12.31%; the active component is amorphous State form exists, and the particle diameter of described carrier is 290nm; The preparation method of described catalyst comprises the following steps:

[0078] (1) Add 50g of MgO powder to 100mL of AgNO 3 solution (control loading Ag mass fraction is 0.12%), stirred at 313K for 4h, then the sample was suction filtered, and air-dried for 24h to obtain Ag 2 O / MgO spare;

[0079] (2) the Ag in the step (1) of 1.6g 2 O / MgO powder was added to 150mL of NiB plating solution (the composition of the plating solution was 2g / L KBH 4 , 12g / L NiSO 4 ·6H 2 (0, 16g / L ethylenediamine and 35g / L NaOH), then heated and stirred in a 318K water bath for 30min to obtain a black NiB / MgO amorphous catalyst, and the catalyst was washed with deio...

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Abstract

The invention relates to a catalyst for preparing hydrogenated terphenyl as well as a preparation method and an application of the catalyst. The catalyst comprises a carrier and an active component, the carrier includes MgO, wherein the active component comprises a NiB compound; wherein the molar ratio of Ni to B in the NiB compound is 1: 1. (0.34-0.4), the catalyst is used in the process of preparing hydrogenated terphenyl by catalyzing hydrogenation of mixed terphenyl. The catalyst has the advantages of good selectivity, high conversion rate and multiple times of application, the preparationprocess of the catalyst is simple, the cost is relatively low, the catalyst is applied to catalytic preparation of hydrogenated terphenyl, and the problems of low catalytic efficiency, poor selectivity and high production cost of the catalyst in the traditional hydrogenated terphenyl preparation process are solved.

Description

technical field [0001] The invention belongs to the field of organic synthesis, and relates to a catalyst for preparing hydrogenated terphenyls, a preparation method and application thereof. Background technique [0002] Hydrogenated terphenyl is a kind of heat transfer oil with excellent performance. Its main component is a mixture of partially hydrogenated terphenyl isomers, which is obtained by partially hydrogenating a mixture of o-, m-, and p-terphenyls in different proportions (the saturation is 39%) . Hydrogenated terphenyl has excellent thermal stability, anti-oxidation and low vapor pressure. It is widely used in petrochemical, synthetic fiber, synthetic resin, medicine, printing and dyeing, organic silicon monomer synthesis and other fine chemical industries. It is an urgent development in China. important fine petrochemicals. [0003] The synthesis route of hydrogenated terphenyls at home and abroad is mainly prepared by catalytic hydrogenation of mixed terpheny...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/755B01J21/10B01J35/02B01J37/02C07C7/04C07C13/28
CPCB01J23/78B01J37/0201B01J37/0215B01J21/10C07C7/04C07C2601/16B01J35/40C07C13/28
Inventor 王海波徐宁王晴
Owner JIANGSU XINHE AGROCHEM
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