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US 2016/0355905 A1Published application
Method for treating sulfide-free minerals
AssigneeOutotec (Finland) Oy
InventorsGunter SCHNEIDER, Nikola Anastasijevic, Jochen Guntner
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Abstract
The present invention provides a method of producing metal oxide(s) by sulfatizing a sulfide-free ore and/or concentrate comprising the steps of providing a sulfide-free ore and/or concentrate comprising sulfide-free mineral(s); and contacting the sulfide-free ore and/or concentrate with gaseous SO3 for sulfatizing the sulfide-free mineral(s) thereby forming metal sulfate(s) and metal oxide(s).
Claims18
A method of producing metal oxide(s) by sulfatizing a sulfide-free ore and/or concentrate comprising:
- (o) providing a sulfide-free ore and/or concentrate comprising sulfide-free mineral(s);
- and
- (a) contacting the sulfide-free ore and/or concentrate with gaseous SO3 for sulfatizing the sulfide-free mineral(s) thereby forming metal sulfate(s) and metal oxide(s).
Dependencies are inferred from the claim text.