Main > POLYMERS > A - M O N O M E R S > DiCarboxylic Acid > Purified TerePhthalic Acid (PTA) > Technology Licensor Companies > Co.: UK. B (Licensees/Patents) > ImPurity>4-HO2C-C6H4-CHO>Redn.

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>Catalyst>Patent>
- USA. A. No. 18
- USA. A. No. 20
>Catalyst>Seq.>Rh on C & Pd on C>Patent>
- USA. A. No. 26



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