Metals Company and SGS produce world’s first nickel sulphate from seafloor polymetallic nodules
TMC the metals company Inc. announced on April 23 that the world’s first nickel sulphate derived exclusively from seafloor polymetallic nodules has been recovered. The sulphate was generated during bench-scale testing of a hydrometallurgical flowsheet in partnership with SGS Canada.
Undertaken on samples of nickel-cobalt-copper matte produced by TMC in 2021, the extractive metallurgy team at SGS tested TMC’s flowsheet that processes high-grade nickel matte directly to nickel sulphate without making nickel metal. The process produces fertilizer by-products instead of solid waste or tailings.
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