Catalyst for water phase hydrogenation preparation of cyclopentanone from furfural or furfural alcohol and preparation method and application method thereof

A catalyst, a technology for hydrogen production, applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problem of limited source of cyclopentene raw materials and low atomic economy , the catalyst is very side effects and other problems, to achieve good catalytic activity stability, improve catalytic efficiency, and facilitate separation, recovery and reuse.

Active Publication Date: 2015-11-04
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technical route of preparing cyclopentanone from adipic acid, the raw material depends on the production of adipic acid, involves multiple cumbersome reaction steps, and the production process involves a decarboxylation process, the theoretical mass yield is 57.5%, and the atom economy is not high
The main problem of the method for preparing cyclopentanone with cyclopentene is that the source of cyclopentene raw material is limited, the price is expensive, and the catalyst has very side effects, which limit the practicability of this method

Method used

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  • Catalyst for water phase hydrogenation preparation of cyclopentanone from furfural or furfural alcohol and preparation method and application method thereof
  • Catalyst for water phase hydrogenation preparation of cyclopentanone from furfural or furfural alcohol and preparation method and application method thereof
  • Catalyst for water phase hydrogenation preparation of cyclopentanone from furfural or furfural alcohol and preparation method and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Catalyst preparation: (1) According to the methanol-water mass ratio of 1:1, make a mixed solvent, add ferric nitrate into the mixed solvent to dissolve and form ferric nitrate solution (referred to as solution A), and the molar concentration of ferric nitrate is 0.4mol / L; (2) with sodium carbonate aqueous solution (referred to as solution B), the molar concentration is 0.6mol / L; (3) solution B is gradually and slowly added to solution A, stirring while adding, along with the precipitation in the solution Gradually increase until the pH value in the mixed solution reaches 8-10, then stop. Then, the solution containing the precipitate after co-precipitation was aged for 12 hours, and finally filtered, washed, dried at 90°C for 48 hours, and calcined at 400°C for 48 hours in a muffle furnace to obtain a magnetic iron oxide (Fe y o x , 2 / 3y o x ) as the carrier, the equal volume impregnation method prepares the supported Ru catalyst, the quality of Ru is 4.0% of the car...

Embodiment 2

[0030] Catalyst preparation: (1) be made into mixed solvent at 1:2 by ethanol-water mass ratio, ferric chloride is added in mixed solvent and dissolves and forms ferric chloride solution (referred to as solution A), and the molar concentration of ferric chloride is 0.8mol / L; (2) with sodium carbonate aqueous solution (referred to as solution B), the molar concentration is 1.2mol / L; (3) gradually and slowly add solution B to solution A, stirring while adding, as the solution The precipitation in the solution gradually increases until the pH value in the mixed solution reaches 8-10, then it can be stopped. Then, the solution containing the precipitate after co-precipitation was aged for 24 hours, and finally filtered, washed, dried at 120°C for 24 hours, and calcined at 500°C for 24 hours in a muffle furnace to obtain a magnetic iron oxide (Fe y o x , 2 / 3y o x ) as the carrier, the equal volume impregnation method prepares the supported Ru catalyst, the quality of Ru is 4.0% o...

Embodiment 3

[0033] Catalyst preparation: (1) Make a mixed solvent according to the mass ratio of ethylene glycol-water at 1:2, add ferric nitrate into the mixed solvent to dissolve and form a ferric nitrate solution (referred to as solution A), and the molar concentration of ferric nitrate is 1.0 mol / L; (2) add sodium bicarbonate aqueous solution (referred to as solution B), and the molar concentration is 1.5mol / L; (3) gradually and slowly add solution B to solution A, stir while adding, as the solution The precipitation in the solution gradually increases until the pH value in the mixed solution reaches 8-10, then it can be stopped. Then, the solution containing the precipitate after co-precipitation was aged for 48 hours, and finally filtered, washed, dried at 100°C for 24 hours, and calcined at 600°C for 12 hours in a muffle furnace to obtain a magnetic iron oxide (Fe y o x , 2 / 3y o x ) as the carrier, the equal volume impregnation method prepares the supported Ru catalyst, the quali...

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Abstract

The present invention provides a catalyst for water phase hydrogenation preparation of cyclopentanone from furfural or furfural alcohol and a preparation method thereof, the catalyst is a supported catalyst comprising an active ingredient and a carrier; the active component is one or two substance selected from Cu, Ni, Ru, Pd or Pt; the carrier is a magnetic iron oxide with the formula of FeyOx, wherein the ratio y / x is greater than 2/3 and less than 1; and the mass of the active ingredient 2. 0 to 10.0% of the carrier mass. The present invention also discloses a method for water phase hydrogenation preparation of cyclopentanone from furfural or furfural alcohol by use of the catalyst. The method has the advantages of simple operating steps and easy controlled operating conditions. The synthesized catalyst has good catalytic effect, high cyclopentanone product selectivity, and magnetic property, a magnet is used to attract the catalyst, separation and recovery of the catalyst are facilitated, and the catalyst has good prospects.

Description

technical field [0001] The invention relates to the field of synthesis of fine chemicals, in particular to a catalyst for preparing cyclopentanone by catalyzing the aqueous phase hydrogenation of furfural or furfuryl alcohol, and a preparation method and application method thereof. Background technique [0002] Cyclopentanone is an important fine chemical intermediate and a raw material for the pharmaceutical and perfume industries. Use cyclopentanone as raw material to prepare a series of fragrances (alkyl cyclopentanone, jasmone, methyl dihydrojasmonate and brandy ketone, etc.), 2,3-cyclopentenopyridine (pharmaceutical intermediate), buspirone Ketones (anti-anxiety drugs), various anti-inflammatory, anti-cancer drugs, and insecticides and herbicides are also used in rubber synthesis and biochemical research. In addition, cyclopentanone has good solubility properties for various resins and is widely used as a solvent in the electronics industry. [0003] At present, the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/89C07C49/395C07C45/34
Inventor 陈伦刚马隆龙王铁军张琦徐莹史娜
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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