Company profile
Suprex Limited
Home
Carbon Dioxide is universally considered as a clean, green solvent capable of replacing organic solvents which are environmentally harmful, increasingly restricted by legislation and facing more and...
Corporate ownership
Updated 06 Jun 2026 16:52
Company events
Reference milestones and recent Companies House filing stream events.
Incorporated
InceptionCompany registered at Companies House
Spinout profile
Company description
Suprex researches and develops technologies that enable the use of supercritical (liquid) carbon dioxide as a replacement for solvents traditionally used within the chemical industry.
A spin-out of Bangor University's internationally acclaimed C02 Lab, Suprex specialises in the development of applications of supercritical CO2The company carries out contract research and processing at laboratory, pilot plant and commercial scale at its new site in Caernarfon. It is supported by excellent analytical facilities to promote the development and implementation of green and sustainable chemistry into new products and processes, and has one of the most versatile small-scale CO2 process plants in the UK. These facilities and technologies are available to commercial companies and academic groups and we welcome collaborative research projects. The principal activities of the company are: Extraction and fractionation of solid and liquid materials Reactions in supercritical CO2 using biocatalysts Production of ultraclean materials Impregnation of solid materials
Project impact
The CO2 processing is supported by a range of pre-treatment techniques for biomass and additional downstream processing such as molecular distillation. The company is continuously extending its range of processes and scale and the new premises have extensive expansion capacity. Suprex Ltd works closely with its commercial and academic clients to ensure that project work or processing delivers the expected outcomes and costs are kept to a minimum. Suprex is a joint venture between Phytovation Ltd and Bangor University.
Public funding
Projects
COtooCLEAN food grade recycled polyolefins
1 Apr 2022 to 31 Mar 2024
Currently the recycling of films is greatly held back by the absence of a technology that can decontaminate post consumer polyolefin (LDPE, LLDPE,HDPE,PP) films back to food-grade and create high value end-markets for these recycled plastics back into films which is critical to boosting the recycling rate of films. The vision of this project is to fill th...