Regenerating method of waste thionyl chloride

• Main Authors: LIU SHILI, YANG ZHENGLONG, XING GUOXIU
• Format: Patent
• Language: Chinese; English
• Published: 24.08.2018
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses a regenerating method of waste thionyl chloride. A polyacrylamide/zeolite crosslinking compound adsorption material is prepared from polyacrylamide and zeolite in the absence of a coupling agent, the polyacrylamide/zeolite crosslinking compound adsorption material and waste thionyl chloride are placed in a mixer at normal temperature to be evenly mixed, adsorption is conducted for 60-120 min, depressurized distilling is conducted at 78 DEG C, and the first-grade thionyl chloride with the concentrationof 99.5% is obtained. The problems that waste thionyl chloride is highin recovery energy consumptiom, the process is complex and the environment is polluted are solved; the waste thionyl chloride recovery method which is low in cost, simple in production process, beneficial for industrialization and free of pollution is provided and can be used for recovering the waste thionyl chloride generated in different acylating chlorination production processes. 本发明公开了种采用废弃氯化亚砜的再生方法，其采用聚丙烯酰胺、沸石在偶联剂存