Nanjing Agricultural University

Guangdong Welling Motor Manufacturing Co., Ltd.

Huai'an Welling Motor Manufacturing Co., Ltd.

Hu Li

Zhen Fang

Minghu Yu

Yajun Zuo

Richard Lee Smith

Wenrui Li

A rapid synthesis method for a biomass-based amine, including: using formamide as an amine source, formic acid as a hydrogen source, and biomass aldehyde or ketone as a raw material, conduct rapid heating promoting direct addition of formamide and aldehyde or ketone compound through microwave-assisted heating and without a solvent and catalyst, and carrying out formic acid reduction preparing and obtaining a corresponding formamide derivative; selectively converting the formamide derivative under the action of a base into a corresponding primary amine through alcoholysis. The microwave-assisted heating reaction system has a significantly higher catalytic efficiency than a corresponding oil bath system, greatly shortens a reaction time, and significantly improves selectivity, where a conversion rate of a biomass aldehyde or ketone compound may reach at least 99%, and a formamide derivative yield may reach 85-99%; the formamide derivative is synthesized to a primary amine through alcoholysis, where a yield may reach 92-99%.

Rapid synthesis method for biomass-based amine

The present disclosure provides a transverse magnetic flux motor having a stator and a rotor. The stator adopts a tooth and yoke separation structure. Multiple stator teeth are arranged at intervals along the circumferential direction of a stator yoke. The stator teeth or the stator yoke are wound with a stator winding. The rotor is provided on one side of the stator near the stator teeth in the axial direction, and has a back iron and multiple permanent magnets arranged in sequence along the circumferential direction. The permanent magnets are magnetized along the axial direction, and the polarities of adjacent permanent magnets are different from one another.

Transverse magnetic flux motor

A hydrophobic palladium/metal organic framework (MOF) material, which is a solid catalyst material obtained by taking a porous MOF as a carrier, introducing elementary palladium by means of an immersion-reduction method, and performing polydimethylsiloxane coating layer processing. A method which uses hydrophobic palladium/MOF material to selectively catalyze hexoses to prepare 2,5-dimethylfuran comprises: dissolving a hexose into an alcohol; using the hydrophobic palladium/MOF material as a catalyst and polymethylhydrosiloxane as a hydrogen donor, reacting at 70 to 130&#xb0; C. for 0.25 to 12 h under the action of an acidic additive; the concentration of the hexose in the alcohol is 0.2 to 10 wt %, and the total amount of Pd contained in the hydrophobic palladium/MOF material relative to a hexose is 0.1 to 5 mol %. The hydrophobic palladium/MOF material has a stable structure, and under the same conditions, has a catalyzing efficiency which is significantly higher than that of commercially available palladium on carbon and common palladium/MOF materials.

Hydrophobic palladium/metal organic framework material, preparation method thereof, and application therefor for use in synthesizing 2,5-dimethylfuran

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Jiangsu, China

Hu Li