We advised the Geological Survey of Estonia on signing two contracts, the first step in exploring the possibilities of processing and mining phosphorite.
Exploring the phosphorite value chain
The first contract was signed in January with Prayon Technologies to test phosphorite processing using the hydrochloric acid method.
Three and a half tonnes of phosphorite were sent from the Arbavere Research Centre to the University of Liège in Belgium for research purposes. The studies cover the phosphorite value chain, from the mechanical pre-enrichment of phosphorite ore to the production of marketable phosphoric acid. These processes are adapted explicitly for Estonian phosphorite.
As a by-product of Prayon Technologies’ tests, a stream containing rare earth elements, will be used in further studies to determine whether Estonian phosphorite could be a potential source of rare earth elements, and how if so.
An opportunity to compare pros and cons
The second contract was signed in March with AFRY, an international provider of engineering, design and consulting services, to explore the mining and valorisation of phosphorite using the more traditional sulphuric acid processing method. The entire value chain, from mining to the production of phosphoric acid, will be addressed.
These studies will consider the specific characteristics of Estonian phosphorite and will result in a feasibility and profitability analysis based on the Aru-Lõuna study area.
Our services and client team
We advised the client during the negotiation of both contracts, provided contractual legal advice and offered sector-specific expertise.
We are pleased to be contributing to exploring the possibilities for using Estonia’s mineral resources.
The Geological Survey of Estonia was advised by senior associate Liisa Maria Kuuskmaa and partner Mihkel Miidla.
