Purification device and purification method of 1, 1, 1, 3, 3, 3-hexafluoropropane crude product

• Main Authors: DONG TAO, ZHU QUANREN, GUO YUSHU, ZHAO PENGDE, YU FENG, REN SHAOKE, FONG, KIN CHIU, GAO TIANLONG
• Format: Patent
• Language: Chinese; English
• Published: 29.12.2023
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention belongs to the technical field of organic compounds, and particularly relates to a purification device and a purification method of a 1, 1, 1, 3, 3, 3-hexafluoropropane crude product. According to the invention, the first adsorption column and the second adsorption column can be used for removing 1, 1, 1, 3, 3-pentafluoro-2-chloropropene, 1, 1, 1-trifluoro-2-chloroethane and CO2 in 1, 1, 1, 3, 3, 3-hexafluoropropane; the first filter and the second filter can remove small solid particles in the adsorption treatment product; the heavy component impurities such as 1, 1, 1-trifluoro-2-chloroethane in the 1, 1, 1, 3, 3, 3-hexafluoropropane can be further removed by the heavy component removal tower, and the light component impurities such as nitrogen and oxygen can be removed by the light component removal tower. The purification device provided by the invention is used for purifying the 1, 1, 1, 3, 3, 3-hexafluoropropane crude product, so that the 1, 1, 1, 3, 3, 3-hexafluoropropane with the purity