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Method for preparing cyclopentanol or cyclopentanone by catalytically converting biomass

A technology for catalytic conversion and cyclopentanol, which is applied in the preparation of heterocyclic compounds, hydroxyl compounds, and organic compounds, etc., can solve problems such as increasing production costs, achieve reduced production costs, simple preparation methods, and good industrial application prospects. Effect

Inactive Publication Date: 2018-11-16
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process of separating furfural from the aqueous solution formed increases the cost of its production

Method used

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  • Method for preparing cyclopentanol or cyclopentanone by catalytically converting biomass
  • Method for preparing cyclopentanol or cyclopentanone by catalytically converting biomass

Examples

Experimental program
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Embodiment example 1

[0014] Weigh 0.9664g of copper nitrate trihydrate, 14.3590g of magnesium nitrate hexahydrate, and 7.503g of aluminum nitrate nonahydrate into a round bottom flask, and dissolve them in 400ml of deionized water as a solvent, which is designated as solution A. Weigh 10.5990g of sodium carbonate, 13.3333g of sodium hydroxide in a round bottom flask, and dissolve it in 400ml of deionized water as a solvent, which is designated as solution B. The solution A was slowly added to the solution B under stirring at room temperature, and the drop was completed in 2 hours. The mixed solution was circulated at 110° C. for 12 hours. Filter and wash to pH 7 with distilled water. Then vacuum-dried at 80°C in a vacuum oven for 12 hours, and the obtained precatalyst was calcined in a tube furnace under a nitrogen atmosphere to a temperature of 300°C with a heating rate of 5°C / min, and kept at this temperature for 4h. Then it was calcined in a tube furnace under a hydrogen atmosphere to a tempe...

Embodiment example 2

[0016] Weigh 1.9328g of copper nitrate trihydrate, 13.3333g of magnesium nitrate hexahydrate, and 7.503g of aluminum nitrate nonahydrate in a round bottom flask, and dissolve them in 400ml of deionized water as a solvent, which is recorded as solution A. Weigh 10.5990g of sodium carbonate, 13.3333g of sodium hydroxide in a round bottom flask, and dissolve it in 400ml of deionized water as a solvent, which is designated as solution B. The solution A was slowly added to the solution B under stirring at room temperature, and the drop was completed in 2 hours. The mixed solution was circulated at 110° C. for 12 hours. Filter and wash to pH 7 with distilled water. Then vacuum-dried at 80°C in a vacuum oven for 12 hours, and the obtained precatalyst was calcined in a tube furnace under a nitrogen atmosphere to a temperature of 300°C with a heating rate of 5°C / min, and kept at this temperature for 4h. Then it was calcined in a tube furnace under a hydrogen atmosphere to a temperatu...

Embodiment example 3

[0018] Weigh 2.8992g of copper nitrate trihydrate, 12.3077g of magnesium nitrate hexahydrate, and 7.503g of aluminum nitrate nonahydrate in a round-bottomed flask, and dissolve them in 400ml of deionized water as a solvent, which is recorded as solution A. Weigh 10.5990g of sodium carbonate, 13.3333g of sodium hydroxide in a round bottom flask, and dissolve it in 400ml of deionized water as a solvent, which is designated as solution B. The solution A was slowly added to the solution B under stirring at room temperature, and the drop was completed in 2 hours. The mixed solution was circulated at 110° C. for 12 hours. Filter and wash to pH 7 with distilled water. Then vacuum-dried in a vacuum oven at 80°C for 12 hours, and the obtained precatalyst was calcined in a tube furnace under a nitrogen atmosphere to a temperature of 300°C at a heating rate of 5°C / min, and kept at this temperature for 4 hours. Then it was calcined in a tube furnace under a hydrogen atmosphere to a temp...

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Abstract

The invention relates to a method for preparing cyclopentanol or cyclopentanone by catalytically converting biomass. A Cu-containing catalyst is used, deionized water is used as a solvent, furfural orfurfuryl alcohol is added into an autoclave, hydrogen is introduced, and a reaction is carried out a certain reaction temperature to obtain the product cyclopentanol or cyclopentanone. The catalyst has the advantages of simple preparation process, good catalysis effect in the catalysis of highly-selective hydrogenation of furfural or furfuryl alcohol under controlled reaction conditions to prepare the cyclopentanol or cyclopentanone, easiness in recovery and reuse, and excellent industrial application prospect.

Description

technical field [0001] The invention relates to a method for catalytically converting biomass to prepare cyclopentanol or cyclopentanone. Background technique [0002] Cyclopentanol is an important fine chemical intermediate, which is widely used in the production of medicine, dyes and fragrances, and is also a solvent for drugs and fragrances. In industry, cyclopentanol is usually prepared by hydrogenation of cyclopentanone. [0003] Cyclopentanone is a multifunctional fine chemical raw material. It can be used in the synthesis of drugs, pesticides, rubber chemicals, herbicides and fragrances. Cyclopentanone can easily dissolve various resins, so it is widely used as a solvent in the electronics industry. The traditional synthesis methods of cyclopentanone are pyrolysis of adipic acid and its derivatives and oxidation of cyclopentene. The reaction conditions are harsh and the process is cumbersome. Currently, cyclopentanone is in great demand, but still relies on fossi...

Claims

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Application Information

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IPC IPC(8): C07C29/141C07C29/132C07C35/06C07C45/59C07C49/395B01J23/72
CPCC07C29/132C07C29/141C07C45/59B01J23/72C07C2601/08C07C35/06C07C49/395
Inventor 黄军周旭阳
Owner NANJING UNIV OF TECH
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