Acetic acid synthesis catalyst separation and recovery device

• Main Authors: LI GUANHUI, SUN YUDONG, GU XIUXIA, LIU XU, LIU DUO
• Format: Patent
• Language: Chinese; English
• Published: 18.06.2019
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY

The acetic acid synthesis catalyst separation and recovery device comprises a pre-separation tower, a cooler, a first separator, a stripping tower, a reboiler, a light component removal tower, a primary cooling cooler, a final cooling cooler, a second separator and a layering device. According to the utility model, through modular and functional partition design, the step-by-step efficient separation of expensive rhodium catalyst, cocatalyst methyl iodide and crude acetic acid is realized, the unit product consumption and cost are effectively reduced, and the clean environmental protection index and economic benefit of an acetic acid production process are improved. 一种醋酸合成催化剂分离回收装置，包括预分离塔、冷却器、第一分离器、汽提塔、再沸器、脱轻塔、初冷冷却器、终冷冷却器、第二分离器、分层器。本实用新型通过模块化、功能分区设计，实现了昂贵的铑催化剂、助催化剂碘甲烷与粗醋酸分步高效分离，有效降低了单位产品消耗与成本，提高了醋酸生产工艺的清洁环保指标和经济效益。