Phthalic Anhydride (PA) Flakes: Primary Feedstock for PVC Plasticizers & Alkyd
Phthalic Anhydride (PA) Flakes: Primary Feedstock for PVC Plasticizers & Alkyd are produced by fixed-bed oxidation of o-xylene in multi-tubular reactors charged with a supported vanadia–titania catalyst. The reactor gas is partially condensed in switch condensers, where crude PA desublimates as a solid; the crude material is then thermally pretreated,...
