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A kind of method that ferric phosphate catalyzes the liquefaction of bamboo powder to prepare furfural

A technology of iron phosphate catalyzing bamboo and furfural, applied in the direction of organic chemistry, etc., can solve the problems of easy corrosion of equipment, low catalytic activity, difficulty in recovering inorganic acids and Lewis acids, etc., and achieves continuous, separation and recovery, equipment technology Flexible and economical results

Active Publication Date: 2019-12-20
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inorganic acids and Lewis acids have good activity in catalyzing the reaction of biomass to furfural. However, inorganic acids and Lewis acids have problems such as difficult recovery and easy corrosion of equipment.
Organic acids and solid acids have problems such as low catalytic activity and easy deactivation of solid acids

Method used

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  • A kind of method that ferric phosphate catalyzes the liquefaction of bamboo powder to prepare furfural
  • A kind of method that ferric phosphate catalyzes the liquefaction of bamboo powder to prepare furfural

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Bamboo powder is obtained by crushing bamboo chips to 10-200 mesh. In a 100mL autoclave, weigh 1g of bamboo powder, 0.5g of FePO 4 2H 2 O, 3.5g NaCl, 10mL deionized water and 30mL tetrahydrofuran were measured with a graduated cylinder. Cover the still lid tightly, and replace the air in the reaction kettle with nitrogen for 4 times. Then, turn on the condensing device and power supply of the reactor, set the reaction temperature to 160° C., and the stirring speed to 700 rpm. After heating up to 160°C, keep the temperature constant for 1 hour. After the reaction was terminated, the reaction kettle was taken out and cooled to normal temperature, the gas was released, and the lid of the kettle was opened. The remaining solid product and liquid product after the reaction were taken out, and the solid product and liquid product were separated using a Buchner funnel.

Embodiment 2

[0020] Bamboo powder is obtained by crushing bamboo chips to 10-200 mesh. In a 100mL autoclave, weigh 1g of bamboo powder, 0.5g of FePO 4 2H 2 O, 3.5g NaCl, 10mL deionized water and 30mL tetrahydrofuran were measured with a graduated cylinder. Cover the still lid tightly, and replace the air in the reaction kettle with nitrogen for 4 times. Then, turn on the condensing device and power supply of the reactor, set the reaction temperature to 170° C., and the stirring speed to 700 rpm. After heating up to 170°C, keep the temperature constant for 1 hour. After the reaction was terminated, the reaction kettle was taken out and cooled to normal temperature, the gas was released, and the lid of the kettle was opened. The remaining solid product and liquid product after the reaction were taken out, and the solid product and liquid product were separated using a Buchner funnel.

Embodiment 3

[0022] Bamboo powder is obtained by crushing bamboo chips to 10-200 mesh. In a 100mL autoclave, weigh 1g of bamboo powder, 0.75g of FePO 4 2H 2 O, 3.5g NaCl, 10mL deionized water and 30mL tetrahydrofuran were measured with a graduated cylinder. Cover the still lid tightly, and replace the air in the reaction kettle with nitrogen for 4 times. Then, turn on the condensing device and power supply of the reactor, set the reaction temperature to 170° C., and the stirring speed to 700 rpm. After heating up to 170°C, keep the temperature constant for 1 hour. After the reaction was terminated, the reaction kettle was taken out and cooled to normal temperature, the gas was released, and the lid of the kettle was opened. The remaining solid product and liquid product after the reaction were taken out, and the solid product and liquid product were separated using a Buchner funnel.

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Abstract

A method for preparing furfural by liquidation of ferric phosphate catalysis bamboo powder comprises the steps of weighing bamboo powder and adding the bamboo powder into a high pressure reactor; adding a mixture of water and tetrahydrofuran as a solvent into the reactor; weighing a catalyst FePO4.2H2O and adding the catalyst into the reactor; weighing NaCl and adding NaCl into the reactor; fastening a lid of the high pressure reactor and using nitrogen, hydrogen or inert gas to replace air in the reactor; heating, stirring, and performing constant temperature liquidation reaction to obtain furfural. The bamboo powder half-fiber ingredient is fully liquefied to obtain a high-yield furfural ingredient. The furfural obtained through the method and the catalyst are separated easily, the process is simple, and industrial popularization is implemented easily.

Description

technical field [0001] The invention belongs to the technical field of bamboo powder processing, and in particular relates to a method for preparing furfural through liquefaction of bamboo powder catalyzed by iron phosphate. Background technique [0002] At present, a series of problems such as excessive exploitation and utilization of fossil fuels and the resulting depletion of fossil fuels, global warming, environmental pollution, and ecological damage have seriously restricted the sustainable development of the current social economy. Therefore, the pursuit of renewable, environmentally friendly and clean energy to realize the harmonious coexistence between man and nature has attracted extensive attention from scholars from all over the world. Biomass is the only renewable resource that can be stored, and its own carbon cycle can realize CO 2 Zero emissions and abundant biomass reserves occupy an increasingly important position in the energy consumption structure. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D307/50
CPCC07D307/50
Inventor 叶俊蒋剑春徐俊明陈水根周铭昊王奎李静夏海虹刘朋
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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