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Russian supplier opts for PET melt-to-pellet line

Russian plastics and chemicals supplier Alco-Naphtha LLC has tasked Austria’s Uhde Inventa-Fischer to construct a 240,000tonnes/yr PET plant, the biggest single-line polyethylene terephthalate plant in Europe, at Alco-Naphtha’s site in Kaliningrad.

The new plant will use Uhde Inventa-Fischer’s proprietary 2-Reactor (2R) technology and
Melt-To-Resin (MTR) process to produce PET suitable for application as PET bottles and containers for carbonated soft drinks (CSD), beer, water, juice, and other beverages.

The 2R technology simplifies the polycondensation process and the plant layout compared to conventional multiple-reactor technologies and is said to offer lower energy and maintenance costs, higher raw material yield, and superior PET quality.

The Kaliningrad plant will be the first plant in Eastern Europe based on the MTR process, a cost-effective alternative to conventional production processes because it eliminates expensive solid state post-condensation (SSP). (Initial report on MTR: August 2004 MPW, pg. 47).

MTR produces PET from terephthalic acid (PTA) and ethylene glycol (MEG) using a two-reactor system in melt phase up to the ready-to-use intrinsic viscosity (iV) for bottle or film sheet applications. PET up to an intrinsic viscosity of 0.85 dl/g is obtained. Uhde-Fischer says the
2R-MTR combination cuts a supplier’s cost of converting purified terephthalic acid (PTA) and ethylene glycol (EG) into PET by 28% compared to conventional polycondensation technologies. Uhde-Fischer also is building a similar plant for DAK Americas (USA), and a
400-tonnes/day MTR plant for an unidentified customer in the Middle East.