Drying device for lithium bis (trifluoromethanesulfonyl) imide

• Main Authors: SHANG HONGTAO, ZHANG YANZHI, LI HONGLIN, LUO JIANZHI, LI LIN, ZHANG CHUQIAO, HE CHENG, SHEN YONGMING
• Format: Patent
• Language: Chinese; English
• Published: 27.12.2022
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The utility model provides a drying device for bis (trifluoromethanesulfonyl) lithium imide. The drying device comprises a raw material tank, a liquid feeding pump, a primary filter, a spray dryer, a spiral conveyor, a mixing kettle, a secondary filter, a crude product aqueous solution tank, a crystallization kettle and a glove box, the raw material tank, the liquid feeding pump and the primary filter are sequentially communicated through a pipeline, the mixing kettle, the secondary filter, the crude product aqueous solution tank and the crystallization kettle are sequentially communicated through a pipeline, and a discharge port of the crystallization kettle is communicated with the glove box through a pipeline. According to the device disclosed by the utility model, a high-purity crude product lithium bis (trifluoromethanesulfonyl) imide is obtained by primary filtration and rapid drying, then a high-concentration solution is prepared by secondary dissolution, the solution is filtered while hot to deeply re