Catalytic agent capable of utilizing furfuryl alcohol liquid-phase catalytic hydrogenation to prepare 1,5- pentanedio as well asl preparation method and application of same

A liquid-phase catalysis and catalyst technology, applied in the fields of fine chemical industry and catalyst technology, can solve the problems of low yield of the target product and reduce the reaction pressure, and achieve the effects of improved activity and selectivity, high selectivity and simple preparation method.

Active Publication Date: 2014-11-12
恒光新材料(江苏)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the process conditions developed by Shuichi Koso et al., this process condition greatly reduces the reaction pressure and improves the process conditions. The disadvantage is that the yield of the target product is not high under mild conditions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Accurately weigh 1.0g of H-USY carrier, after calcining at 600°C for 1 hour, measure the water absorption, according to the water absorption test, again accurately weigh 1.2g of H-USY carrier, calcining at 600°C for 1 hour, and prepare according to From the water absorption rate, the water absorption amount of 1.2 g of the H-USY carrier was calculated as 2.00 mL. Take a 50mL beaker and pipette 0.49mL of chloroplatinic acid (H 2 PtCl 6 ) aqueous solution in it, and then pipette 0.75mL of 0.5mol / L concentrated hydrochloric acid into the beaker, the molar ratio of hydrochloric acid to platinum element is 30:1, and then add the remaining amount of water 0.76mL to prepare an equal volume of impregnation solution .

[0023] Uniformly mix the prepared impregnating solution with 1.2 g of the calcined H-USY carrier until no excess water precipitates out. After equal volume immersion at room temperature for 24h, dry at 70°C for 8h, and then bake at 600°C for 1h. After cooling...

Embodiment 2

[0025] Accurately weigh 1.0g of H-USY carrier, after calcining at 400°C for 6 hours, measure the water absorption, according to the water absorption test, again accurately weigh the actual weight of 1.2g of H-USY carrier, calcining at 400°C for 6 hours, and prepare according to From the water absorption rate, the water absorption amount of 1.2 g of the H-USY carrier was calculated as 2.00 mL. Take a 50mL beaker and pipette 0.12mL of chloroplatinic acid (H 2 PtCl 6) aqueous solution in it, then pipette 0.18mL of 3.5mol / L concentrated hydrochloric acid into the beaker, the molar ratio of hydrochloric acid to platinum element is 20:1, and then add the remaining amount of water 1.70mL to prepare an equal volume of impregnating solution .

[0026] Uniformly mix the prepared impregnating solution with 1.2 g of the calcined H-USY carrier until no excess water precipitates out. After equal volume immersion at room temperature for 24h, dry at 130°C for 1h, and then bake at 400°C for...

Embodiment 3

[0028] Accurately weigh 1.0g of H-USY carrier, after calcining at 550°C for 2 hours, measure the water absorption, according to the water absorption test, again accurately weigh the actual weight of 1.2g of H-USY carrier, calcining at 550°C for 2 hours for later use, and according to From the water absorption rate, the water absorption amount of 1.2 g of the H-USY carrier was calculated as 2.00 mL. Take a 50mL beaker and pipette 0.49mL of chloroplatinic acid (H 2 PtCl 6 ) aqueous solution in it, and then pipette 0.94mL of 1.0mol / L concentrated hydrochloric acid into the beaker, the molar ratio of hydrochloric acid to platinum element is 15:1, and then add the remaining amount of water 0.57mL to prepare an equal volume of impregnating solution .

[0029] Uniformly mix the prepared impregnating solution with 1.2 g of the calcined H-USY carrier until no excess water precipitates out. After equal volume immersion at room temperature for 24h, dry at 90°C for 4h, and then bake at...

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Abstract

The invention relates to a catalytic agent capable of utilizing furfuryl alcohol liquid-phase catalytic hydrogenation to prepare pentanediol, which is characterized in that an H-USY molecular sieve serves as a carrier, an isovolumetric impregnation method is adopted to introduce an active metal component, drying and roasting are carried out, and in-situ temperature-programmed reduction is carried out under a hydrogen atmosphere so as to prepare the catalytic agent. The catalytic agent has high-activity and selectivity for utilizing the furfuryl alcohol hydrogenation to prepare the pentanediol.

Description

technical field [0001] The invention relates to the field of catalyst technology and fine chemical industry, in particular to the preparation of a supported platinum catalyst with molecular sieve as a carrier and the synthesis method of 1,5-pentanediol. Background technique [0002] 1,5-Pentanediol is a linear diol, which is widely used as an important chemical intermediate in the manufacture of coatings, polyesters, fragrances, polyurethanes, plasticizers, and inkjet inks or inks. [0003] The products developed by 1,5-pentanediol as chemical intermediates have excellent performance and wide application, so countries all over the world are vigorously developing the technology for preparing 1,5-pentanediol. Especially as the world pays more and more attention to environmental protection, environmentally friendly products such as polyester hot melt adhesives and polyester adhesives produced from 1,5-pentanediol are more and more popular. [0004] The traditional preparation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/12C07C31/20C07C29/00
Inventor 施阳李明时鲁墨弘张伟
Owner 恒光新材料(江苏)股份有限公司
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