Vale informs on Onça Puma Vale
Vale hereby informs that today the President of Supreme Federal Court STF decided to suspend the injunctions and to grant the return of Vale s nickel operations mine and plant Onça Puma in Ourilândia do Norte state of Pará
Considerations for Scale Up of Ferronickel Electric Smelting Furnaces
Ferronickel is produced at a range of alloy nickel grades from 15% to 40% with the grade depending on a number of factors including geographical location and economics for overall nickel and iron 11 The ferronickel product grade is a function of the feed ore nickel grade Fe Ni ratio and the degree of iron reduction/recovery The extent of iron