Diphenyl Carbonate DPC Purification Column

In the DPC-production step, at least two reactive distillation columns combined with each other must be used (Fukuoka et al, 2003). High production rate and selectivity are obtained using this distillation sequence. A vacuum SSC was proposed to remove the light and heavy components to obtain high-purity DPC with 99.95% wt. yield. A further retrofit 

Feed component A Lights Lights C1-C3 n-Pentane Benzene C3 

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