Dioxolane Plant

As the second monomer for polyacetal(POM) production,1,3-dioxolane has
attracted great attention in recent years due to the expansion of its
application, such as the solvent for grease, dyes, cellulose derivatives,
polymers and etc, the stabilizer for trichloroethane, components of
photosensitiser. There are usually two processes for 1,3-dioxolane production,
one uses paraformaldehyde and MEG as the feedstock, while the other starts from
concentrated formalin and MEG. SL Tech has been specialized in dioxolane
production since 2008 based on concentrated formalin and MEG. In detail, in
presence of concentrated sulfuric acid catalyst, enriched formalin and MEG
reacts with each other at 90-100oC atmospheric pressure, the resulting mixture
is charged to Enrichment Unit, Extraction Unit, Heavy Components Distillation
Unit and Light Components Distillation Unit in subsequence to get the finished
1,3-dioxolane product.

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