TMC & SGS Produce World-First Nickel Sulfate from Deep-Seafloor Polymetallic Nodules
The sulfate was generated during bench-scale testing of its hydrometallurgical flowsheet design in partnership with SGS Canada Inc., at their Lakefield, Ontario facility.
- The sulfate was generated during bench-scale testing of its hydrometallurgical flowsheet design in partnership with SGS Canada Inc., at their Lakefield, Ontario facility.
- Undertaken on samples of nickel-cobalt-copper matte produced by TMC in 2021, the Extractive Metallurgy team at SGS tested TMC’s efficient flowsheet to process high-grade nickel matte directly to nickel sulfate without making nickel metal, while producing fertilizer byproducts instead of solid waste or tailings.
- Following the successful nickel sulfate production, SGS continues testing to produce what TMC believes will be the world’s first cobalt sulfate from polymetallic nodules.
- This work was executed in close collaboration with SGS and other industry leaders to demonstrate the ability to refine nodules to high value products.