| 摘要 |
<p>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.</p> |
