C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 11/16 (2006.01)
Patent
CA 2431489
A process for the recovery of useful constituents from multi layered laminated fragments of packaging industrial refuse in sheet, strip, tube or shredded form from each other as separate constituents comprising treating the fragments with an inorganic acid solution being 50%-70% conc. nitric acid for about 4-7 hours, so as to loosen the bonding of the cotituents; stripping the constituents physically and washing the same.
Cette invention concerne un procédé permettant de récupérer en les triant des constituants utiles tirés de fragments multicouche laminés de rebuts industriels d'emballages se présentant sous forme de feuilles, bandes, tubes ou copeaux. Ce procédé consiste à traiter les fragments avec une solution d'acide inorganique ayant une concentration d'acide nitrique de 50 %-70 % pendant une durée de 4 à 7 heures, de manière à détacher la colle de ces constituants, à dénuder physiquement ces constituants et à les laver.
Mukhopadhyay Ashutosh
Riches Mckenzie & Herbert Llp
LandOfFree
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