公开(公告)号：US10525454B2

公开(公告)日：2020-01-07

申请号：US16201087

申请日：2018-11-27

申请人： Jiangnan University

发明人： Haijun Wang ,  Yi Huang ,  Chunyan Wu ,  Wenwen Yuan

IPC分类号： B01J31/18 ,  B01J29/40 ,  B01J31/26 ,  B01J37/04 ,  B01J37/03 ,  B01J37/00 ,  B01J37/06 ,  B01J37/02 ,  C07C51/31 ,  B01J29/70

摘要： The present disclosure discloses an immobilized metalloporphyrin catalyst and its utilization in maleic acid preparation, belonging to the technical field of metalloporphyrin catalytic application. The immobilized metalloporphyrin catalyst is used for catalyzing furfural to prepare maleic acid and is good in catalytic effect, mild in reaction conditions and capable of greatly reducing the energy consumption required in the prior art. The catalyst disclosed by the present disclosure can provide a good microenvironment for a reaction, so that the yield and selectivity of maleic acid are increased; and according to a method disclosed by the present disclosure, the conversion ratio of furfural is 20.4%-95.6%, the yield of maleic acid is 10%-56.1%, and the selectivity is 43.6%-76.1%. Meanwhile, the catalyst is easy to separate and environmentally friendly and may be recycled for many times.

公开(公告)号：US10898888B2

公开(公告)日：2021-01-26

申请号：US16359303

申请日：2019-03-20

申请人： Jiangnan University

发明人： Haijun Wang ,  Chunyan Wu ,  Yi Huang ,  Wenwen Yuan

IPC分类号： B01J31/02 ,  B01J37/08 ,  C07D307/50 ,  B01J37/06 ,  B01J35/00 ,  B01J37/00 ,  B01J23/835 ,  C08F226/06 ,  B01J23/745 ,  B01J31/00 ,  C08F292/00 ,  B01J31/06 ,  B01J21/04 ,  B01J21/08 ,  B01J21/06

摘要： The present disclosure discloses the preparation and application of magnetic metallic oxide cross-linked acidic polyionic liquid, belonging to the technical field of solid acid catalysis. The catalyst prepared by the present disclosure has good Lewis acid site and Brönsted acid site, and has the characteristics of high speed, high efficiency, environment friendliness and the like when catalyzing preparation of furfural from xylose. The catalyst has the advantages of easy separation, multiple cycles of recycling and the like, and is green and pollution-free. The magnetic metal oxide cross-linked acidic polyionic liquid prepared by using the present disclosure has the characteristics of high speed, high efficiency, environment friendliness and the like when catalyzing preparation of furfural from xylose, and meanwhile, the catalyst has the advantages of easy separation, multiple cycles of recycling and the like, and is green and pollution-free.

公开(公告)号：US11110445B2

公开(公告)日：2021-09-07

申请号：US16702172

申请日：2019-12-03

申请人： Jiangnan University

发明人： Haijun Wang ,  Yi Huang ,  Chunyan Wu ,  Wenwen Yuan

IPC分类号： B01J31/18 ,  B01J29/40 ,  B01J31/26 ,  B01J37/04 ,  B01J37/03 ,  B01J37/00 ,  B01J37/06 ,  B01J37/02 ,  C07C51/31 ,  B01J29/70 ,  B01J29/14 ,  B01J29/46

摘要： The present disclosure discloses an immobilized metalloporphyrin catalyst and its utilization in maleic acid preparation, belonging to the technical field of metalloporphyrin catalytic application. The immobilized metalloporphyrin catalyst is used for catalyzing furfural to prepare maleic acid and is good in catalytic effect, mild in reaction conditions and capable of greatly reducing the energy consumption required in the prior art. The catalyst disclosed by the present disclosure can provide a good microenvironment for a reaction, so that the yield and selectivity of maleic acid are increased; and according to a method disclosed by the present disclosure, the conversion ratio of furfural is 20.4%-95.6%, the yield of maleic acid is 10%-56.1%, and the selectivity is 43.6%-76.1%. Meanwhile, the catalyst is easy to separate and environmentally friendly and may be recycled for many times.