| 摘要 |
<p>The waste comprises optical discs. The crushed waste is separated in sodium chloride solution (density of 1.05-1.10) by vibrating table to separate paper/paperboard, plastic and dust phases. The plastic phase with high and low density is separated and sorted by optical method (224). The separation consists of a fine screening (granulometry of 1 mm) to recover small plastic. The crushing (204) has a granulometry of 14 mm and equipped with de-dusting. The optical sorting is carried out by a vibrating circular screen in two flows of different granulometry. The extrusion (230) comprises a dye addition process. An independent claim is included for a system to carry out the above treatment.</p> |
