Patent ID: 11939503
Assignee: INTELLIGENT MANUFACTURINIG INSTITUTE OF HFUT
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 4:
5. The preparation method for the manganese-doped red phosphor according to claim 1, wherein the step 5) comprises:
under conditions of a vacuum degree of 60 Pa to 200 Pa and a flow rate of 60 L/min to 100 L/min, performing vacuum suction filtration treatment on the solution after ion exchange, to obtain a filter cake, and then using acetone to repeatedly wash the filter cake to be neutral, and then drying the filter cake for 1 hour to 4 hours under conditions of a temperature of 60° C. to 90° C. and a vacuum of 90 Pa to 500 Pa, to obtain the manganese-doped red phosphor.