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Active metal-modified oxide catalyst, preparation method and application thereof

A technology of active metals and oxides, applied in metal/metal oxide/metal hydroxide catalysts, catalyst activation/preparation, amino compound preparation, etc., can solve the problem of 2-methyl-1,2-propanediamine synthesis Low efficiency and other problems, to achieve the effect of improved synthesis efficiency, improved conversion rate, and excellent catalytic performance

Pending Publication Date: 2022-07-05
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide an active metal-modified oxide catalyst, a preparation method and its application to solve the problem of 2-methyl-1,2-propanediamine in the prior art. The technical problem of low synthesis efficiency

Method used

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  • Active metal-modified oxide catalyst, preparation method and application thereof
  • Active metal-modified oxide catalyst, preparation method and application thereof
  • Active metal-modified oxide catalyst, preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0047] This example provides an active metal-modified oxide catalyst, which in mass percentage, is composed of the following raw materials: Ni is 14.8%, Co is 4.9%, Pt is 1.5%, Mg was 1.1% and the modified oxide loading was 77.7%. Among them, Ni and Co are active metals, Mg is the first auxiliary agent, Pt is the second auxiliary agent, and the modified oxide is supported by Al modified with diethylenetriamine. 2 O 3 load, using diethylenetriamine on Al 2 O 3 When the load is modified, the mass of diethylenetriamine is Al 2 O 3 1% of the load mass.

[0048] The preparation method of the active metal-modified oxide catalyst of the present embodiment specifically includes the following steps:

[0049] Step 1, oxide loading modification;

[0050] Prepare an aqueous solution A containing 1 g of modifier, add the oxide support into the aqueous solution A, stir and immerse it at 30 °C for 4 hours, evaporate to dryness, and dry it at 100 °C to obtain solid B; After calcinatio...

Embodiment 2

[0068] This example provides an active metal-modified oxide catalyst, which in mass percentage, is composed of the following raw materials: Ni is 14.8%, Co is 4.9%, Pt is 2.0%, Mg was 1.1% and the modified oxide loading was 77.2%. Among them, Ni and Co are active metals, Mg is the first auxiliary agent, Pt is the second auxiliary agent, and the modified oxide is supported by Al modified with diethylenetriamine. 2 O 3 load, using diethylenetriamine on Al 2 O 3 When the load is modified, the mass of diethylenetriamine is Al 2 O 3 2% of the load mass.

[0069] The preparation method of the active metal-modified oxide catalyst of the present embodiment specifically includes the following steps:

[0070] In this embodiment, step 1 is basically the same as step 1 in embodiment 1, the difference is that an aqueous solution A containing 2 g of modifier is prepared.

[0071] In this embodiment, step 2 is the same as step 2 of embodiment 1.

[0072] In this embodiment, step 3 is...

Embodiment 3

[0078] This example provides an active metal-modified oxide catalyst, which in mass percentage, is composed of the following raw materials: Ni is 9.8%, Co is 9.9%, Pt is 1.8%, Mg was 1.1% and the modified oxide loading was 77.3%. Among them, Ni and Co are active metals, Mg is the first auxiliary agent, Pt is the second auxiliary agent, and the modified oxide is supported by polyethyleneimine-modified Al. 2 O 3 load, using polyethyleneimine on Al 2 O 3 When the load is modified, the mass of polyethyleneimine is Al 2 O 3 2% of the load mass.

[0079] The preparation method of the active metal-modified oxide catalyst of the present embodiment specifically includes the following steps:

[0080] In this embodiment, step 1 is basically the same as step 1 of embodiment 1, except that an aqueous solution A containing 2 g of a modifier is prepared; the modifier is polyethyleneimine.

[0081] In this embodiment, step 2 is the same as step 2 of embodiment 1.

[0082] In this embo...

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Abstract

The invention provides an active metal-modified oxide catalyst as well as a preparation method and application thereof, and the active metal-modified oxide catalyst comprises active metal, a first auxiliary agent, a second auxiliary agent and a modified oxide load, the preparation method of the active metal-modified oxide catalyst comprises the four steps of oxide loading modification, magnesium nitrate treatment, catalyst material preparation and active metal-modified oxide catalyst preparation, and the finally prepared active metal-modified oxide catalyst can be used as a catalyst for 2-methyl-1, 3, 4-trimethyl-1, 3-pentanediol monoisobutyrate. The catalyst is used in 1, 2-propane diamine synthesis reaction. The active metal-modified oxide catalyst disclosed by the invention is good in stability and excellent in catalytic performance, and the conversion rate of reaction raw materials and the high selectivity of products can be improved by applying the catalyst to a synthetic reaction of 2-methyl-1, 2-propane diamine, namely the synthetic efficiency of 2-methyl-1, 2-propane diamine can be improved.

Description

technical field [0001] The invention belongs to the field of catalytic synthesis and relates to catalysts, in particular to an active metal-modified oxide catalyst, a preparation method and applications thereof. Background technique [0002] 2-Methyl-1,2-propanediamine is an important nitrogen-containing fine chemical, which can be used in the fields of medicine, new materials, analytical reagents, and functional secondary additives. As a pharmaceutical intermediate, it is mainly used to synthesize a new generation of antimalarial drug OZ277 and diabetes drug Anagliptin. OZ277 overcomes the resistance of pathogens to traditional antimalarial drugs, and has a broad market prospect. The demand for the corresponding intermediate 2-methyl-1,2-propanediamine is also increasing year by year. [0003] Patents such as application publication number CN102976951A and publication number US2587043A disclose that 2-amino-2-methylpropionitrile is used as raw material, and 2-methyl-1,2-pr...

Claims

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Application Information

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IPC IPC(8): B01J27/24B01J23/89B01J37/02C07C209/16C07C211/09
CPCB01J27/24B01J23/8946B01J23/002B01J37/0213C07C209/16B01J2523/00B01J2523/22B01J2523/31B01J2523/828B01J2523/845B01J2523/847B01J2523/41C07C211/09Y02P20/584
Inventor 杨建明王为强吕剑张前梅苏宁余秦伟惠丰李佳霖袁俊李亚妮
Owner XIAN MODERN CHEM RES INST
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