首页>
外国专利>
Method for preparation of building materials from Tetra Pak scrap for the innovative packaging
Method for preparation of building materials from Tetra Pak scrap for the innovative packaging
展开▼
机译：用利乐废料制备建筑材料以进行创新包装的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
The purpose of the notification is to recycle waste materials of the type Tetra Pak using an organic solvent to separate polyethylene waste from aluminium waste. The solution concerns the recycling of waste of the type Tetra Pak using an organic solvent in which the mechanically fragmented components of the tetra Pak packaging after recovery of the polyethylene-aluminium-mixed cellulose called polyalu undergo the treatment of the organic solvent, xylene-treated not less than 4:1 in relation to the weight of the plastic, at the boiling point of the solvent,the mixture of solvent and polymer obtained after separation of pure non-polyethylene aluminium filter sieves with a pressure pump is converted into a evaporator, where at temperature 1000-18000-C the solvent is evaporated, which is returned to the process after condensation in the refrigerator, and plastic polyethylene translates into further processing. In the form of separation of aluminium from polyethylene, poly waste, the solvent is treated as xylene at boiling temperature i.e. ok.140 degrees C. Process is conducted in excess of solvent,in closed circuit. The solution of the poly waste is carried out periodically in a reactor with a heating coat and mixer and a return cooler. The diluted aluminium plastic is transmuted by pump through a filtration sieve (the precision of the filtration of the mesh. 50-micrometers) receiving aluminium, followed by the reception of aluminium and cellulose residues. The aluminium removed is directed to the induction crucible kilns where at temperature 660-700-C it is melted and cast into uniform components which can be further sold (castings, foundries). In this process, the residues of cellulose are incinerated,which allows high purity aluminium to be obtained. The notification shall also cover the management of individual recovery fractions in order to obtain packaging.
展开▼
