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2007
|
Invention
|
Lead slag reduction. A process for lead slag reduction subjects the slag to top-submerged lance i... |
|
2005
|
Invention
|
Process for copper converting. The process for converting a copper sulphide matte to blister copp... |
|
2004
|
Invention
|
An improved smelting process for the production of iron. A process for producing iron metal and s... |
|
2002
|
Invention
|
Hydroxamate composition and method for froth flotation. The invention relates to a hydroxamate co... |
|
|
Invention
|
Improvements in or relating to flotation. The invention provides a collector for mineral separati... |
|
2001
|
Invention
|
Preparation of fatty hydroxamate. A method for preparing fatty hydroxamic acids and salts thereof... |
|
1997
|
Invention
|
Smelting of carbon-containing material. A process for treating carbon-containing material contami... |
|
1996
|
Invention
|
Continuous smelting and refining of iron. The production of iron product uses a top-submerged lan... |
|
|
Invention
|
Recovery of cobalt from slag. The process for the recovery of cobalt product from a molten slag h... |
|
1995
|
Invention
|
Processing of municipal and other wastes. The process provides for disposal of waste materials, i... |
|
1994
|
Invention
|
Process for production of iron. A process for smelting iron-containing source material in a react... |
