Market and product

Arianne Phosphate, a Canadian phosphate mining company, has announced the successful completion of a pilot-scale trial of a high-purity phosphoric acid (PPA) production process developed in collaboration with Travertine Technologies. According to the companies, the pilot demonstrated that the process can produce phosphoric acid meeting the quality requirements for lithium iron phosphate (LFP) battery materials and other industrial applications.

The pilot follows a memorandum of understanding signed by the two companies in late 2025 and a framework agreement for a joint venture reached in early June 2026. Under the collaboration, Arianne supplied high-grade phosphate concentrate from its Lac à Paul project in Quebec, Canada, while Travertine Technologies conducted pilot-scale testing at its facility in Colorado, United States.

The trial was designed to evaluate the compatibility of Arianne's phosphate concentrate with Travertine's electrochemical processing technology. According to the companies, the pilot successfully produced high-purity phosphoric acid suitable for use in LFP battery manufacturing as well as other specialty chemical applications.

One notable feature of the technology is its ability to recover and recycle more than 95% of the sulfuric acid used during production. According to the companies, the closed-loop process significantly reduces sulfuric acid consumption while minimizing the generation of phosphogypsum, a major by-product associated with conventional phosphoric acid production.

Demand for high-purity phosphoric acid has been increasing in recent years, driven by the rapid expansion of lithium iron phosphate battery production for electric vehicles and energy storage systems. Beyond the battery industry, high-purity phosphoric acid is also widely used in the food, pharmaceutical, electronics, and semiconductor sectors.

Market analysts note that China currently dominates global production of both LFP battery materials and high-purity phosphoric acid. As governments and industries seek to diversify supply chains for strategic raw materials, interest has grown in developing PPA production capacity outside China.

Following the successful pilot, Arianne Phosphate announced that it has signed a site option agreement for the construction of a demonstration plant. The facility is expected to produce high-purity phosphoric acid at a larger scale to further validate the technology before potential commercial deployment.

Travertine Technologies stated that its electrochemical process is designed to reduce dependence on sulfur in the production of critical minerals while minimizing sulfate and phosphogypsum waste streams. If successfully commercialized, the technology could help reduce the environmental footprint of phosphoric acid manufacturing.

The two companies are continuing to advance the next phase of the project while engaging with potential partners and customers to assess opportunities for commercializing the technology.