Chemical Recycling of Fluorochemicals

Introduction

Hydrofluorocarbons (HFCs) and fluorinated polymers (fluoropolymers) are widely used as refrigerants, foaming agents, insulating materials, and coatings. The negative impact of HFCs and fluoropolymers in the environment is under increasing scrutiny.

Environmental Impact

HFCs are potent contributors to global warming, while it has been suggested that fluoropolymers can break down into small chain poly(fluorinated) alkyl substances (PFAS), known to be damaging to health. Current methods for disposal of F-gases and fluoropolymers are both highly energy-intensive and costly.

Proposed Solution

Arguably, a better approach would involve the chemical recycling of these molecules and materials. This would not only prevent their release into the environment, but it would also provide an alternative means to source fluorine atoms that does not rely on mining finite mineral resources (e.g., CaF2, fluorspar).

Project Background

Underpinned by ERC StG and CoG projects and more than 10 years of experience in the field, my lab recently developed a breakthrough technology that allows a simple, cost-effective method for recycling HFCs and fluoropolymers.

Project Goals

In this project, we will:

1. Translate and commercialise this technology.
2. Allow the fluorine content of both HFCs and fluoropolymers to be reused.
3. Generate commercially relevant fluorochemicals.

This activity marks an important step toward a new circular economy for fluorine.