Posts Tagged ‘liquid crystal polymers’

“PTA”

Definition: “PTA” is the acronym of Purified Terephthalic Acid. Comment: Modern technologies produce PTA by the catalytic liquid-phase oxidation of Para-Xylene (PX) in acetic acid, which is done in the presence of air and uses manganese or cobalt acetate as a catalyst. PTA is purified in a crystallizer, where unreacted xylene […]

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