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1,3-Dioxolane was prepared from ethylene glycol and formaldehyde in the presence of a cation-exchange resin. The reaction was studied in batch mode, semi-batch reactive distillation mode and in a continuous reactive distillation column. A pseudohomogeneous model explains the batch kinetics. Higher than 98% conversion of formaldehyde was achieved in semi-batch reactive distillation. Recovery of...
The removal of formaldehyde from aqueous solutions of 2-butyne-1,4-diol (BD), which are prepared from ethynylation of acetylene with aqueous formaldehyde, was successfully accomplished by a number of approaches: reaction with sodium bisulfite and removal of the resultant ionic product with an anion exchange resin in a fixed bed system or using an anion exchange resin bed in bisulfite form; reactive...
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