Catalyzer for preparing furfuryl alcohol through hydrogenation in liquid phase furfural

A catalyst, a technology for preparing furfuryl alcohol, applied in the direction of organic chemistry, etc., can solve the problems of increasing catalyst cost, large cobalt metal, increasing use difficulty, etc.

Inactive Publication Date: 2005-01-12
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the preparation process of the catalyst, a large amount of cobalt metal is required, which increases the cost of the catalyst; in addition, the Raney cobalt catalyst is a spontaneous combustion type and needs to be stored in ethanol, which increases the difficulty of use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Catalyst preparation process: Weigh 75.0 g of copper nitrate, 50.0 g of ammonium chromate, and 4.5 ml of 1.0 mg / ml palladium solution. Dissolve copper nitrate and ammonium chromate in about 500ml deionized water respectively to prepare a solution. Slowly add the copper nitrate solution to the ammonium chromate solution, and stir continuously at 50°C; and dropwise add the ammonia solution to make the pH of the solution about 6.5, mix to obtain a precipitate, then add the required palladium solution dropwise, and age After 5 hrs, the precipitate was washed and filtered, dried at 110°C for 20 hrs, and calcined at 330°C for 4 hrs. Catalyst samples were ground to less than 120 mesh.

[0017] (2) Reaction performance:

[0018] Weigh 5g of catalyst (<120 mesh) and 300ml of furfural into a high-pressure stainless steel reactor. After the hydrogen in the cylinder is stabilized at a constant pressure, it enters the reactor through a rotameter. At a reaction temperature of 1...

Embodiment 2

[0020] (1) Catalyst preparation process:

[0021] Weigh 76.5g of copper nitrate, 49.0g of ammonium chromate, 5.5ml of 1.0mg / ml palladium solution, and the same

[0022] Example 1.

[0023] (2) Reaction performance:

[0024] Under the conditions of 185°C and 8MPa, the conversion rate of furfural is 99.4%, and the selectivity of furfuryl alcohol is 98.1%.

Embodiment 3

[0026] (1) Catalyst preparation process:

[0027] Weigh 78.0 g of copper nitrate, 48.0 g of ammonium chromate, 6.5 ml of 1.0 mg / ml palladium solution, and the rest are the same as in Example 1.

[0028] (2) Reaction performance:

[0029] Under the conditions of 190°C and 8.5Mpa, the conversion rate of furfural is 99.7%, and the selectivity of furfuryl alcohol is 97.8%.

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PUM

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Abstract

A catalyst for preparing furfuryl alcohol by hydrogenating liquid-phase furaldehyde contains CuO, Cr2O3 and Pd. Its advantages are high activity, conversion rate and selectivity.

Description

technical field [0001] The invention belongs to catalysts and applications thereof, in particular to a catalyst for furfural liquid-phase hydrogenation to furfuryl alcohol and applications thereof. Background technique [0002] Furfuryl alcohol is an important organic chemical intermediate, mainly used in fine chemical industry, can produce levulinic acid (also known as malic acid), furan resin with various properties (such as furfural resin, furan I, II resin), furfuryl alcohol -Urine-formaldehyde resin and phenolic resin, etc.; widely used in construction, foundry industry, especially in automobile industry. [0003] At present, furfuryl alcohol is produced industrially by catalytic hydrogenation of furfural. my country is a major producer of furfural. Among furfural deep-processing products, furfuryl alcohol is a product with high value. [0004] Chinese patent ZL 91103132.4, "Raney Cobalt Hydrogenation Catalyst for Producing Furfuryl Alcohol and Its Preparation Method"...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/89C07D307/44
Inventor 朱玉雷万海军赵钢炜滕波涛张承华相宏伟李永旺
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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