Subventions et des contributions :

Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2018-2019).

This proposal describes the plan for the development of a breakthrough technology based on supercritical fluid extraction (SCFE)x000D
for the removal of contaminants that cause color and odor in specialty chemicals such as waxes derived from recycled polymers.x000D
Polyethylene and polypropylene feedstock contain various additives, such as fillers and colorants, which either degrade or carryx000D
through the depolymerization process; thereby causing intense dark colors and a pungent petroleum odor. The combination ofx000D
color and odor imposes several challenges, limiting the potential markets of the waxes products. This project aims to develop anx000D
innovative, cost effective, and environmentally friendly SCFE process to purify the waxes by removing the contaminants. Thex000D
purified waxes could then be utilized in a variety of market segments, including color masterbatch, roofing shingles, rubber,x000D
coatings, and road asphalt modifiers. Compared with traditional purification technologies based on solvent extraction andx000D
absorbent filters, SCFE process offers exceptional advantages, including fast reaction rates, little liquid waste, ease of separationx000D
of solutes, and fewer separation stages. It has been shown that supercritical CO2 dissolves various types polymers. It is thereforex000D
expected that the contaminants in polymers can be removed by SCFE. This project is highly beneficial for Canada and Ontario inx000D
terms of academic excellence and industrial competitive advantage, as it creates an opportunity to produce high-value water whitex000D
waxes from reclaimed polymeric feedstock with a focus on clean technologies and enhanced resource efficiency. Also, top highx000D
quality personnel will be trained for careers in the Canadian and Ontario-based Chemicals sector.