US focused lithium company ioneer (ASX:INR) has hit a huge milestone, successfully producing a battery grade lithium hydroxide from its Rhyolite Ridge ore.


  • ioneer tapped Veolia to produce battery-grade lithium hydroxide from its lithium-boron ore
  • This validates early work done by Ioneer, with the flowsheet to be folded into a DFS, expected in the third quarter this year
  • ioneer’s pilot plant is now simulating commercial processes in a continuous cycle using the flow sheet from the Veolia testing

Veolia produced both a high purity lithium hydroxide and lithium carbonate using bench-scale test work which simulated major unit operations with the DFS process flowsheet.

It means that ioneer’s early thinking around processing were on the mark, which further underpins progress on the company DFS.

But Veolia will also attempt to produce a battery-grade lithium carbonate from ioneer’s ore — using several different methods.

The flowsheet used by Veolia to produce the battery-grade lithium hydroxide is now being run at the company’s pilot plant in Canada — with that work to feed even more data into the company’s DFS.

The testwork confirms that Rhyolite Ridge will be able to produce a range of products at the mine site including boric acid, lithium carbonate, and lithium hydroxide,” managing director of ioneer, Bernard Rowe, said.

“ioneer is well-placed to meet the expected strong North American demand for lithium as the United States looks to develop a domestic battery supply chain.”

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About ioneer

ioneer (ASX:INR) is an ASX-listed lithium resource developer with a focus on the Rhyolite Ridge lithium-boron project in Nevada.

Rhyolite Ridge is a large, shallow lithium-boron deposit located close to existing infrastructure in southern Nevada, USA and owned 100 percent by ioneer.


This content is produced by Star Investing in commercial partnership with ioneer.  This content does not constitute financial product advice. You should consider obtaining independent advice before making any financial decisions.