Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Treatment of metal sulphide concentrates by roasting and electrically stabilized open-arc furnace smelt reduction

Treatment of metal sulphide concentrates by roasting and electrically stabilized open-arc furnace smelt reduction

US Patent 6699302 · Granted Mar 2, 2004

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Sorting materials using pattern recognition, such as upgrading nickel laterite o2022
Sorting materials using pattern recognition, such as upgrading nickel laterite o2019
Sorting materials using a pattern recognition, such as upgrading nickel laterite2016
Process for treating ore having recoverable metal values including arsenic conta2002
Fluidized bed reduction of laterite fines with reducing gases generated in situ2002
Process for treating ore having recoverable metal values including arsenic conta2001
Pretreatment of chromium-bearing metal scrap to remove chromium1995
Pretreatment of chromium-bearing metal scrap to remove chromium1993
Process for treating ore having recoverable gold values and including arsenic-, 1992
Electrically heated fluidized bed reactor and processes employing same1992
Non-ferrous metal recovery1989
Methods of making cementitious compositions from waste products1988