Abstract： Ammonium chloride is a by-product of Hou’s process for soda manufacture. In order to achieve efficient use of nitrogen and chlorine, and fundamentally solve the problems of by-product surplus and environmental pollution, several organic bases of different structures were selected to study the reaction process of decomposing ammonium chloride to release ammonia gas, and organic base hydrochloride to release hydrogen chloride. The effect of organic alkalinity, structure and solvation on the reaction was correlated. The results showed that the organic alkalinity did not showed a completely positive correlation with the decomposition of ammonium chloride and the corresponding organic base hydrochloride. Besides the alkalinity, the structure and solvation of organic base also had an important effect on the reaction. Trihexylamine and trioctylamine were suitable organic bases, which could simultaneously satisfy the decomposition process of ammonium chloride and the corresponding organic base hydrochloride. In addition, solvents also had a great influence on the reaction. The decomposition of ammonium chloride by trihexylamine and trioctylamine should be carried out in a polar alcohol solution, while the decomposition of the corresponding organic base hydrochloride should be performed in a nonpolar alkane solution.
BIAN Siyu,GUAN Congcong,WANG Shufang et al. Influencing Factors on Decomposition of Ammonium Chloride and Organic Base Hydrochloride[J]. 化学反应工程与工艺, 2019, 35(5): 422-428.
