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Sulphur 421 Nov-Dec 2025

21 November 2025

Arianne to use Travertine technology

CANADA

Arianne to use Travertine technology

Arianne Phosphates has signed a memorandum of understanding with Travertine Technologies Inc. for the production of purified phosphoric acid using Travertine’s proprietary process on high-purity phosphate concentrate from Arianne’s planned Lac à Paul project in Quebec Province.

Travertine’s phosphate process produces PPA from phosphate concentrate using recycled sulphuric acid, eliminating a substantial cost associated with PPA production, as well as avoiding phosphogypsum waste, while producing carbon-neutral or carbon-negative materials for cements. Arianne says that its phosphate concentrate is a perfect feedstock for this process, given its high-purity, low-contaminant nature. Current work is on-going to advance engineering on a Phase 1 small commercial facility expected to produce PPA for use in lithium iron phosphate (LFP) cathode active materials production.

“We are excited to be working with Travertine on this venture,” said Brian Ostroff, Arianne’s head of Strategic and Business Initiatives. “This partnership plays directly into Arianne’s strategy of not only being a miner of phosphate but in also being a producer of purified phosphoric acid thus capturing the opportunity and unlocking the substantial economic benefits. Arianne has concluded on this as a first step in its goal of partnering with players that have technologies and operations that will allow the Company to benefit directly from the growing demand for purified phosphoric acid, a necessity for the LFP battery. Deals like this will allow Arianne and its partners to aid in the West’s requirement for a secure supply of battery materials.”

“The global energy transition is driving huge demand growth for critical elements such as phosphorus,” said Laura Lammers, PhD, founder and CEO of Travertine. “Partnering with Arianne is an important step toward our goal of building a new circular economy at scale for the next generation of phosphates production.”

Lac à Paul is claimed to be the world’s largest greenfield phosphate deposit. Due to the phosphate deposit being igneous, and thus geologically rare, Arianne can produce a very high-purity,

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