Technology Description

The chemistry of converting BDO to THF and subsequently to PTMEG is show here:

see diagram >>

The simplified process flow diagram for INVISTA’s THF/PTMEG process technology offered for license is shown here:

see diagram >>

Reference List

To download a copy of the reference list for this technology, please click here:


IPT's technology offerings include a Technology Package that comprises a Process and Basic Design Package (PBDP), technology & operating know-how, market knowledge and project execution resources.  The size of the plant can be configured to meet the needs of the client. IPT also offers on-going Technical Services and the potential to enter into off-take agreements with its licensees.

Key Features

• Robust and efficient process based on INVISTA’s patented PTMEG process and catalyst
• Low capital cost

  • Active catalyst
  • Stainless Steel and Carbon Steel materials of construction
  • Continuous Methanolysis

• Over 10 years of commercial operation

INVISTA’s PTMEG product made using this process is qualified for all major end uses