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Environment-friendly 2-methyl furan catalyst and preparation method thereof

A methyl furan catalyst, an environment-friendly technology, applied in the field of environment-friendly 2-methyl furan catalyst and its preparation, can solve the problems of poor catalyst stability and achieve stable performance and good dispersion

Inactive Publication Date: 2012-08-01
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the catalyst gave a higher selectivity to 2-methylfuran, the stability of the catalyst was poor

Method used

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  • Environment-friendly 2-methyl furan catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1 30.6 grams of copper nitrate trihydrate and 8.36 grams of zinc nitrate hexahydrate were dissolved in 100 ml of deionized water, and then added to 250 ml of aluminum sol. Dissolve 32 grams of sodium carbonate in 200ml of deionized water, mix the nitrate-dissolved aluminum sol solution and sodium carbonate aqueous solution at 40°C under stirring conditions to obtain a precipitate with a pH of 7.5, then age for 2 hours, filter and wash the precipitate Finally, it was dried at 110° C. for 12 hours, and then calcined at 500° C. for 4 hours in a muffle furnace to obtain a catalyst.

Embodiment 2

[0021] Example 2 24 grams of copper nitrate trihydrate, 8.36 grams of barium nitrate, and 4.2 grams of calcium nitrate were dissolved in 100 ml of deionized water, and then added to 250 ml of aluminum sol. Dissolve 36 grams of sodium carbonate in 200ml of deionized water, mix the nitrate-dissolved aluminum sol solution and sodium carbonate aqueous solution at 40°C under stirring conditions to obtain a precipitate with a pH of 7.5, then age for 2 hours, filter and wash the precipitate Finally, it was dried at 110° C. for 12 hours, and then calcined at 500° C. for 4 hours in a muffle furnace to obtain a catalyst.

Embodiment 3

[0022] Example 3 72 grams of copper nitrate trihydrate, 30 grams of calcium nitrate, and 8.2 grams of zinc nitrate were dissolved in 100 ml of deionized water, and then added to 600 ml of aluminum sol. Dissolve 50 grams of sodium hydroxide in 500 ml of deionized water, mix the aluminum sol solution dissolving nitrate and sodium hydroxide aqueous solution at 50°C under stirring conditions to obtain a precipitate, the pH is 8 and then aged for 2 hours, the precipitate is filtered and After washing, it was dried at 110° C. for 12 hours, and then calcined at 500° C. for 4 hours in a muffle furnace to prepare the catalyst.

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Abstract

The invention provides an environment-friendly 2-methyl furan catalyst and a preparation method thereof and relates to a hydrogenation catalyst and a preparation method thereof. The catalyst is prepared by a colloid precipitation method and the active component Cu is dispersed highly. The catalyst mainly comprises the following components as per percentage by weight: 15 to 50 percent of CuO and 40 to 80 percent of silicon oxide or aluminum oxide. The catalyst is applied to preparation of 2-methyl furan through furfural gas phase hydrogenation, wherein the conversion rate of the furfural is 100 percent and the selectivity of the 2-methyl furan reaches over 92 percent. By the colloid precipitation method, sol can be effectively bound with Cu and aid; the Cu can be dispersed on the surface of the carrier highly; and the catalyst has high activity and stability in the reaction of synthesizing the 2-methyl furan by hydrogenating the furfural. The catalyst applied to preparation of the 2-methyl furan by hydrogenating the furfural has simple components and does not comprise Cr so as to avoid the environmental pollution caused by pretreatment on the Cr-containing industrial catalyst and treatment on the waste catalyst.

Description

technical field [0001] The invention relates to a hydrogenation catalyst and a preparation method thereof, in particular to an environment-friendly 2-methylfuran catalyst and a preparation method thereof. Background technique [0002] 2-Methylfuran is an important organic chemical raw material, which is widely used in medicine, pesticide and fine chemical industry. A series of organic chemicals can be synthesized from it, such as pentadiene, pentylene glycol, acetylpropanol and ketones; in the pharmaceutical industry, 2-methylfuran is used to prepare vitamin B 1 And anti-dysentery drugs chloroquine phosphate, primaquine phosphate, etc. The industrial production of 2-methylfuran is produced by catalytic hydrogenation of furfural, and the key to this process is the development of high-performance catalysts. The catalysts currently used in industry are mainly Cu-Cr catalysts, which are very expensive. Soviet patent SU941366 reported that Cu0-Cr 2 o 3 / Graphite or alumina ...

Claims

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Application Information

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IPC IPC(8): B01J23/80B01J23/78C07D307/36
Inventor 吴静王康军
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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