Ecolab has agreed to acquire Purolite, a supplier of ion exchange resins for the separation and purification of solutions based in Pennsylvania, for $3.7 billion in cash. This should close within Q4, subject to regulatory clearance and other closing conditions. It is expected to be revenue-neutral in 2022 and slightly accretive in 2023.

Purolite operates in more than 30 countries and employs about 1,000 people, with expected 2021 sales of around $400 million. It will operate as a separate global business unit and it results will be reported within the Life Sciences division.