Method for preparing 2,5-furandimethanol by selective hydrogenation of 5-hydroxymethylfurfural

A technology of hydroxymethylfurfural and furan dimethanol, which is applied in two fields, can solve the problems of long reaction time and high hydrogen pressure, and achieve the effect of low price, large specific surface area and reusable price

Active Publication Date: 2019-08-16
XIAMEN UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

At the same time, some non-precious metal catalysts based on Cu, Ni, Co, etc. are also being continuously developed. Among them, Cu-based catalysts show good catalytic performance, but generally have long reaction time (≥5h) and high hydrogen pressure (≥ 5Mpa) (Chemsuschem 2014, 7(8), 2266-2275; RscAdv 2017, 7(50), 31401-31407; Journal of Molecular Catalysis A: Chemical 2017, 426, 244-256; Chemsuschem 2015, 8(8) , 1323-1327; Applied Catalysis B: Environmental 2017, 200, 192-199; Applied Catalysis A: General 2014, 481, 49-53)

Method used

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  • Method for preparing 2,5-furandimethanol by selective hydrogenation of 5-hydroxymethylfurfural

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 5-Hydroxymethylfurfural (0.5 mmol), catalyst CuNPs@ZIF-8 (7.2% mol Cu, relative to 5-Hydroxymethylfurfural) and 5 mL of ethanol were added into a stainless steel closed reactor, filled with 2Mpa H 2 , heated to 140° C. for 3 h at a stirring speed of 600 rpm, and cooled to room temperature after the reaction was completed. The catalyst is centrifuged and the reaction solution is tested. Through gas chromatography analysis, the calculated selectivity of 2,5-furandimethanol is greater than 99%, and the molar yield is 99%.

[0032] The GC-MS collection of illustrative plates of the 2,5-furandimethanol that the present embodiment makes is as follows figure 1 shown.

Embodiment 2

[0034] Add 5-hydroxymethylfurfural (0.5 mmol), catalyst CuNPs@ZIF-8 (7.2% mol Cu, relative to 5-hydroxymethylfurfural) and 5 mL ethanol into a stainless steel closed reactor, filled with 3Mpa H 2 , heated to 140° C. for 1 h at a stirring speed of 600 rpm, and cooled to room temperature after the reaction was completed. The catalyst is centrifuged and the reaction solution is tested. Through gas chromatography analysis, the calculated selectivity of 2,5-furandimethanol is greater than 99%, and the molar yield is 96%.

Embodiment 3

[0036] Add 5-hydroxymethylfurfural (0.5 mmol), catalyst CuNPs@ZIF-8 (7.2% mol Cu, relative to 5-hydroxymethylfurfural) and 5 mL ethanol into a stainless steel closed reactor, filled with 4Mpa H 2, heated to 140° C. for 0.5 h at a stirring speed of 600 rpm and reacted for 0.5 h. After the reaction was completed, it was cooled to room temperature. The catalyst is centrifuged and the reaction solution is tested. Through gas chromatography analysis, the calculated selectivity of 2,5-furandimethanol is greater than 99%, and the molar yield is 86%.

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Abstract

The invention discloses a method for preparing 2,5-furandimethanol by selective hydrogenation of 5-hydroxymethylfurfural, and the method comprises the following steps: adding the 5-hydroxymethylfurfural, catalyst CuNPs@ZIF-8 and ethanol to a stainless steel closed reactor, charging with H2, and reacting at thetemperature of 120-150DEG C and the pressure of 1-4 MPa for 0.1-5 h. The method adopts the CuNPs@ZIF-8 as the catalyst, and the catalyst not only has large specific surface area, high dispersion of nano copper and good hydrogen adsorption performance, but also has simple preparation, lowprice and reusability. The method overcomes the problem of expensive use of precious metals as catalysts and low efficiency of non-precious metals as catalysts in prior studies.

Description

technical field [0001] The invention belongs to the technical field of 2,5-furandimethanol preparation, and in particular relates to a method for preparing 2,5-furandimethanol by selective hydrogenation of 5-hydroxymethylfurfural. Background technique [0002] 2,5-furandimethanol can be prepared by selective hydrogenation of the biomass-based platform compound 5-hydroxymethylfurfural, which can be used in synthetic resins, pharmaceutical intermediates, artificial fibers and functional polyesters. [0003] At present, the catalysts used for catalytic hydrogenation of 5-hydroxymethylfurfural to prepare 2,5-furandimethanol are mainly noble metal catalysts such as Au, Pt, Pd, Ru and Ir (J.Phys.Chem.C 2016, 120(28 ), 15129-15136; RSCAdv.2013, 3(4), 1033-1036; Green Chem.2014, 16(11), 4734-4739; Green Chem.2014, 16(9), 4110-4114; Rsc Adv. 2016, 6(96), 93394-93397; Green Chem.2012, 14(5), 1413-1419; Catal.Today 2014, 234, 59-65; Chem.Commun.2013, 49(63), 7034-6 ). At the same ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D307/42B01J31/28B01J35/10
CPCB01J31/28B01J35/0066B01J35/1004C07D307/42
Inventor 曾宪海冯云超高哲邦孙勇唐兴雷廷宙林鹿
Owner XIAMEN UNIV
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