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Preparation method for alkaline carbonaceous carrier used for preparing furandicarboxylic acid

A furandicarboxylic acid and alkaline technology, applied in the fields of catalytic chemistry and chemical engineering, can solve problems such as discomfort FDCA

Active Publication Date: 2014-11-26
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface of ordinary carbon materials contains acidic functional groups such as oxygen hydroxyl group and carboxyl group, which are not suitable as a carrier for the preparation of FDCA by oxidation of HMF. -Magnesia composite material as basic carbonaceous solid catalyst support

Method used

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  • Preparation method for alkaline carbonaceous carrier used for preparing furandicarboxylic acid
  • Preparation method for alkaline carbonaceous carrier used for preparing furandicarboxylic acid

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Weigh 4.633g of resorcinol and 2.535g of commercial light magnesium oxide, add 10mL of deionized water, and keep the temperature at 60 oC . After 10 hours of continuous stirring, the water in the solution was evaporated, and the resulting material was transferred to a Teflon-lined stainless steel autoclave at 160 oC After crystallization for 48h, a reddish-brown solid was obtained. Grind after drying, then place in a tube furnace, under a nitrogen atmosphere at 600 oC After carbonization for 6 hours, the required basic carbonaceous catalyst carrier is obtained, and the content of magnesium oxide is 56%.

[0022] Example 2 Preparation of Carbonaceous Catalyst Carrier Using Nano-sized Magnesium Oxide

Embodiment 2

[0023] Weigh 9.503g of magnesium chloride and 9.586g of ammonium carbonate, dissolve them in 20mL of deionized water, and after stirring evenly and slightly heat to form a precipitate, filter with suction to obtain a hydrated magnesium carbonate solid, which is then transferred to a stainless steel autoclave with a polytetrafluoroethylene liner for 180 °C. oC Crystallize for 12 hours, take it out, grind it, and dry it. Then in a tube furnace under a nitrogen atmosphere at 450 o C decomposes for 5 hours. After weighing the obtained white nano-sized magnesium oxide, it was added into the resorcinol ethanol solution according to the molar ratio of 1:1. After stirring for 30min, transfer to a stainless steel autoclave lined with polytetrafluoroethylene, at 180 oC After crystallization for 24h, a reddish-brown solid was obtained. Grind after drying, then place in a tube furnace, under a nitrogen atmosphere at 800 oC After carbonization for 3 hours, the required basic carbona...

Embodiment 3

[0025] Weigh 2.303g of elemental magnesium, dissolve it in 20mL of methanol solution, and heat it slightly after stirring to release bubbles. After the elemental magnesium is gradually dissolved, a uniform methanol solution of magnesium methoxide is obtained, and then the obtained solution is mixed according to the molar ratio of magnesium and glucose. Add it to the glucose solution at a ratio of 1:1 and keep the temperature at 80 oC . After 10 hours of continuous stirring, the water in the solution was evaporated, and the resulting material was transferred to a Teflon-lined stainless steel autoclave at 200 oC After crystallization for 12h, a reddish-brown solid was obtained. Grind after drying, then place in a tube furnace, under a nitrogen atmosphere at 600 oC After carbonization for 3 hours, the required basic carbonaceous catalyst carrier is obtained, and the content of magnesium oxide is 35%.

[0026] Example 4 Preparation of Supported Catalyst by Carrier Supporting...

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Abstract

The invention relates to a preparation method for an alkaline carbonaceous carrier used for preparing furandicarboxylic acid. The alkaline carbonaceous carrier is a compound of carbon-magnesium oxide or magnesium carbonate. An alkaline carbonaceous solid catalyst carrier is obtained by preparing a precipitate of the compound through a hydrothermal or solvothermal method, by using a phenolic compound or saccharide as a carbon source and magnesium oxide, magnesium carbonate and a magnesium salt as a magnesium source; and then carrying out high temperature carbonization in an inert atmosphere. The carrier is used for preparing furandicarboxylic acid (FDCA) through oxidation of 5-hydroxymethyl furfural in no presence of homogeneous alkali after being loaded with a noble metal, and achieves an excellent effect. A yield of FDCA can reach over 95%; and the carrier can be used for a plurality of times. The preparation method starts from cheap raw materials, and obtains a stable alkaline carbonaceous solid catalyst carrier through a simple and practical synthetic route.

Description

technical field [0001] The invention relates to a preparation method and application of a carbonaceous catalyst carrier, belonging to the fields of catalytic chemistry and chemical engineering. Background technique [0002] With the rapid development of economy, the problem of energy shortage has become a common concern all over the world. my country's oil resources are scarce, and oil safety issues are becoming more and more prominent. It is necessary to find a fundamental way and alternative method to ensure energy safety; therefore, the world has a strong interest in the development and utilization of renewable resources. At present, the most important renewable energy sources include: biomass energy, geothermal energy, hydrogen energy, small hydropower, solar energy, wind power, tidal power generation, etc. Among them, biomass resources are the most abundant renewable resources. [0003] After pretreatment, the biomass is first degraded into simple sugars such as glucos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/42B01J32/00B01J21/18C07D307/68
Inventor 王艳芹贾嵘韩学旺爨谦耿靓刘晓晖卢冠忠王筠松龚学庆郭耘王丽
Owner EAST CHINA UNIV OF SCI & TECH