State-owned IOC has commissioned its Propylene recovery unit at its Mathura Refinery. IOCBSE -1.12 % inaugurated the new propylene recovery unit which is designed to process cracked LPG feed to produce 165,000 tons per annum of 99.7 per cent pure, petrochemical-grade propylene product," the company said in a statement here. Propylene is used in the major building blocks of the country. It is used in manufacturing of wide variety of products like automobile headlights, disk brake pads and bumper , film food wrap, plastic goods such as baskets and containers.