C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 63/26 (2006.01) C07C 51/09 (2006.01)
Patent
CA 2337597
The present invention relates to a method of recovering terephthalic acid from a material containing poly(ethylene terephthalate) (P.E.T.) in the form of bottles, by making said material react, in the absence of water, with a reagent consisting of one or more metal salts of a weaker acid than the terephthalic acid, until a water-soluble compound is obtained, and subsequently carrying out dissolution in water and acidification.
La présente invention concerne une méthode de récupération d'acide téréphtalique d'un matériau contenant du poly(téréphtalate d'éthylène)(P.T.E.) sous forme de bouteilles, en faisant réagir le matériau, en l'absence d'eau, avec un réactif composé d'un ou de plusieurs sels métalliques d'un acide plus faible que l'acide téréphtalique, jusqu'à l'obtention d'un composé hydrosoluble pour ensuite procéder à une dissolution dans l'eau et à une acidification.
Broccatelli Massimo
Oyen Wiggs Green & Mutala Llp
LandOfFree
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