Patent ID: 11873286
Assignee: SHANGHAI WOKAI BIOTECHNOLOGY CO., LTD.
Field: Organic fine chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 7:
8. The method for preparing FDCA from furfural according to claim 1, wherein in step (3), the post-treatment comprises: extracting an acylation product in the reaction system with petroleum ether at 30° C. to 50° C. for 3 to 5 times, washing an extraction product with a 1 wt % NaOH solution at 20° C. to 30° C., and subjecting a washed product to dewatering and vacuum distillation to obtain the 5-acylfurfural,
wherein the vacuum distillation is conducted at a vacuum pressure of −0.0996 MPa to −0.1 MPa and a tower pot temperature of 70° C. to 150° C.