Technology for treating thionyl chloride tail gas

The present invention provides one process of absorbing sulfoxide chloride tail gas with sulfur, water and dimethyl formamide and including periodical adsorption and centralized desorption. The process of the present invention is superior to available alkali absorption process and sodium citrate absorption process with low product quality, high cost and other advantages, and has the advantages of high absorption capacity, high absorption efficiency, low toxicity, no corrosion, no secondary pollution, low cost, etc.