Continuous production device system and production method of liquid bis (fluorosulfonyl) imide salt

• Main Authors: PAN YANAN, YUE GONGXING, TSUNG-LUNG YANG, XUE YING, LIN HAIZHENG, DONG JING
• Format: Patent
• Language: Chinese; English
• Published: 22.12.2023
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOUNDS THEREOF; ELECTRICITY; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention provides a continuous production device system and a production method of liquid bis (fluorosulfonyl) imide salt, and the continuous production device system adopts a micro-channel flow reaction device to replace a conventional reaction kettle. And meanwhile, equipment such as a flash separation device, a film evaporation device and a diluting device is matched to realize continuous production of the bis (fluorosulfonyl) imide salt product, so that the economical efficiency is good, the production efficiency is high, and the process is safe and controllable. According to the method, high-purity imidodisulfuryl fluoride and dry metal salt are adopted as raw materials, and the imidodisulfuryl fluoride salt product prepared in cooperation with a continuous production device system is high in purity, the water content is smaller than or equal to 15 ppm, the acid value is smaller than or equal to 35 ppm, the Hazen color number is smaller than 30, the mass content of free chlorine is smaller than 1 pp