Purified Terephthalic Acid ( PTA ) Formula: C8H6O4 Description: White needle crystal or powder Uses : As a reagent for alkali in wool , additive to poultry feeds. Chemical and physical propertiesCombustibility: FlammableToxicity : Low toxicityDensity : 1.510 gcm3Sublimation : 402 C ( Under natural pressure)Melting point: 425 C (in a gland )Solubility : dissolving in hot grain alcohol , not dissolving in water, aether , glacial acetic acid and chloroform. PTA Specification: Test Item Specification PTA Content% 99% Metal(Fe, Mo, Cr, Ti, Mn, Ni, Co)ppm 4ppm Moisture % 0.5% Fe ppm 2ppm DMF Chroma.5%Liquor 10 4-CBA ppm 25ppm Acid Num(mg KOHg) 6752 Package and storageStorage : Keep container closed when not in use, Store in a cool, dry, well-ventilated area away from strong oxidizing substances. Package : Pocket by measured or pocket in tank car PreparationHigh temp. oxidation: While acetic acid as solvent, Co, Mn, Br admixture as catalyzer p-xylene will oxidate into crude terephthalic acid . Under certain temperature and pressure. Then CTA dissolve into water under high temperature and pressure. And passa PdC catalyzer settled vessel which is a reactor where the oxidation production will be hydrogenated in order to removeimpurity(4-CBA).Afterward.the hydrogenation production will become the final production(PTA) after crystallizing filtrating P-Tol acid and drying. Packaging Detail: Big-bags of 1000kg (23MT per 20ft container). Big-bags of 1100kg (23MT per 20ft container). Bulk container (up to 25MT per 20ft container).
Kimberley, South Africa
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Mr. Dan Chen (Apollo Trade Holdings Pty Ltd)
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