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The initial activity and selectivity of toluene chlorination by sulfuryl chloride was measured using dried and undried samples of four different zeolites: L, X, Y, and ZSM-5. In all cases, removing residual water from the zeolite increases its initial activity. The in-situ removal of water causes a large increase in the para-selectivity of zeolite L, a smaller increase for ZSM-5, and effectively no...
The catalytic decomposition of sulfuryl chloride was studied over dried sodium forms of zeolites ZSM-5, L, and Y. NaZSM-5 did not catalyze the decomposition, whereas NaKL and NaY did. During the chlorination of aromatic hydrocarbons using NaKL or NaY, the chlorinating agent sulfuryl chloride must compete with molecular chlorine produced by its own decomposition. The rate of reaction with molecular...
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