METHOD FOR ISOLATING CELLULOSE AND OTHER ADHESIVE MATERIALS DURING THE RECYCLING OF WASTE PLASTICS, IN PARTICULAR MIXED PLASTICS

摘要

The invention relates to a method for isolating cellulose and other adhes ive material from waste plastics during the recycling of all types of waste plastics, in particular mixed plastics. According to said method, films and pieces consisting of thicker plastic parts of optionally pre-sorted waste pl astics are mechanically pre-ground to obtain flakes or particles of a pre-de termined size, any oversize material being discarded. The ground product is introduced together with water into a disc refiner, the fraction of flakes a nd other particles being at least 10 % of the total volume, any material adh ering to the flakes is rubbed off to a considerable extent and forms a separ ate material and the latter is isolated from the plastic particles in an ind ividual separation method.