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AssigneeHatch Ltd.
InventorsRobert John Fraser, Henry Christian Immo Von Schroeter, Mark Joseph Machado
Estimating the term…
A treatment process for crystallizing a metal sulfate involving pre-treating a feedstock comprising calcium, magnesium, and/or lithium impurities, the pre-treating involving pre-leaching the feedstock in the presence of a lixiviant, selectively extracting a first portion of any of the impurities from the feedstock, and forming a leached solution comprising an uncrystallized metal sulfate and any remaining impurities; and/or refining the leached solution and removing a second portion of any of the remaining impurities; and crystallizing the uncrystallized metal sulfate from the leached solution to form a crystallized metal sulfate. So processed, the crystallized metal sulfate may be battery-grade or electroplating-grade.
A treatment process for crystallizing a metal sulfate, the process comprising:
A treatment process for crystallizing a metal sulfate, the process comprising:
A process for preparing a leached metal sulfate solution useful for production of battery materials, the process comprising:
The process of 23, wherein the fluoride source is hydrogen fluoride, sodium fluoride, cobalt fluoride, ammonium fluoride, or a combination thereof.
A process for preparing a leached metal sulfate solution useful for production of battery materials, the process comprising:
The process of 32, wherein the first portion of the lithium impurities comprises about 20% to about 70% of the lithium impurities in the feedstock.
Dependencies are inferred from the claim text.