Waste PET use, price, processing technology?

Application: mainly used for regeneration PET fiber, sheet, non-food packagingbottles, development purposes are: building materials, food packaging and containers, Japan Inc have been using polymer alloy improved technology will regenerate powder coating processing performance is better than that of petmade of new material of pet. Price: not found open quotation, is basically a singlemeeting.

Process: Japan Teijin company developed a from waste PET bottle DMT(terephthalic acid methyl two) and EG (ethylene glycol) circulation method, thewaste PET bottles crushing and washing, and then dissolved in EG, EG in theboiling point temperature and under the pressure of 0.1MPa, PETdepolymerization, generating two terephthalic acid hydroxyl ethyl ester (BHET).Then after filtering, removing dregs and additives, BHET and methanol reaction in methanol, the boiling point temperature and under the pressure of 0.1MPa, afterthe ester exchange reaction to produce DMT and EG. After distillation, the DMT andEG were isolated, and then through the process of recrystallization, the refinement of the DMT; the EG was purified by distillation, methanol can be recycled. Recovery of DMT and the purity of EG reached 99.99%, the cost of production and the common DMT and EG method to be roughly the same cost. DMT can be transformed into pure TPA (terephthalic acid), used in the manufacture of bottle grade PET resin. Circulating device can generate about 10% of the companyproduction of resin raw materials.