Technology Description

As a leading supplier of terephthalic acid production technology, INVISTA understands that even the best technology cannot eliminate the by-products that result from impurities generated in the paraxylene oxidation process. While these by-products must be purged from the process and are often burned as waste, they can actually yield valuable chemical components using recovery technology.
At present, there are a range of options for dealing with such residues.  A few processes are available that attempt to recover, at best, one or two of the valuable components in the residue stream. However, until now, none could treat the whole stream.
INVISTA's R²R Technology is a solution that should result in the recovery of over 90 percent of the chemicals in the plant residues stream reducing by-product waste. These valuable chemicals can either be returned to the process or offered for commercial sale. The straightforward yet comprehensive process yields low operational cost and can easily be retrofitted to existing PTA and TA plants of any technology.

Offerings

This innovative and environmentally beneficial technology is available as a licence package exclusively from INVISTA.  The technology package will be tailored to suit each individual customer’s requirements whilst still achieving the same exceptional performance.  Contact us today to discuss how INVISTA's R²R Technology could benefit your environmental and variable cost performance.

Key Features

INVISTA's R²R Technology should result in the recovery of over 90 percent of the chemicals in the plant residues stream reducing by-product waste. These valuable chemicals can either be returned to the process or offered for commercial sale. The straightforward yet comprehensive process yields low operational cost and can easily be retrofitted to existing PTA and TA plants of any technology. With world PTA demand in 2008 reaching 38 million metric tonnes, a conservative estimate would put the quantity of residues produced between 250,000 and 300,000 metric tonnes per annum. Turning 90 percent of this waste stream into useful chemicals offers manufacturers a major environmental and financial benefit.