terephthalic acid


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Related to terephthalic acid: Isophthalic acid

terephthalic acid

[¦ter·əf¦thal·ik ′as·əd]
(organic chemistry)
C6H4(COOH)2 A combustible white powder, insoluble in water, soluble in alkalies, sublimes above 300°C; used to make polyester resins for fibers and films and as an analytical reagent and poultry-feed additive. Also known as para-phthalic acid; TPA.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Major portion of PTA wastewater comprises of benzoic acid (BA), phthalic acid (PA), p-toluic acid (p-Tol), 4-carboxybenzaldehyde (4-CBA), and terephthalic acid (TA) with minor concentrations of the p-xylene, methyl acetate and 4-formylbenzoic acid (Kleerebezem et al., 1999).
If the amine attacks the carbonyl groups at opposite side of molecule, antisymmetric terephthalic acids 6(A-N) could be obtained, while if the amine reacts with the carbonyl groups on the same side, symmetric terephthalic acids 7(A-N) would be expected.
Several other commodity building blocks are also being targeted, including isoprene, acrylic acid, and terephthalic acid. A fermentation process for isoprene has been developed by Danisco in partnership with Goodyear as well as by Amyris in partnership with Michelin and others, predominantly for tire applications.
N, N'-Bis(benzoyl) terephthalic acid dihydrazide(NA) was synthesized from benzoyl hydrazine and terephthaloyl chloride which was deprived from terephthalic acid via acylation, and the structures of the synthesized compound had been characterized by Fourier transform infrared spectroscopy, 1H nuclear magnetic resonance techniques.
Analysts are positive on PTTGC's long-term earnings outlook due to high demand for purified terephthalic acid (PTA) in the next few years and a rising utilisation rate for olefins after the merger.
The product has been developed for Yangzi Petrochemical, for the separation of Metaxylene and Paraxylene, the original ingredients for Purified Terephthalic Acid, commonly utilised in polyester production.
Siemens Energy has received an order for the supply of a new compressor train for expansion of the Ibn Rushd PTA (purified terephthalic acid) plant in Yanbu in Saudi Arabia.
FCFC mainly rolls out petrochemicals and chemical-fibers as PTA (purified terephthalic acid) and PS (polystyrene), with FPC mainly producing petrochemicals and plastics as PP (polypropylene), PVC (polyvinyl chloride) and AE (acrylic ester).
The contract with CTCI would double Ibn Rushd's aromatics production capacity to 1.2 million tons per year from 560,000 tons and more than double its terephthalic acid capacity to 750,000 tons per year, of Ibn Rushd.
The contract with CTCI would double Ibn Rushd's aromatics production capacity to 1.2 million tonnes per year from 560,000 tonnes and more than double its terephthalic acid capacity to 750,000 tonnes per year, SABIC said in an emailed statement on Tuesday.
As part of the rationalisation of its chemical activities La Seda last year closed its Artenius purified terephthalic acid (PTA) plant at Wilton in Britain which it described as technologically obsolete.