Back to results
US 12,662,716 B2Granted
Method and smelting unit for pyrometallurgical smelting of metal- containing raw materials, waste materials and/or secondary waste materials
AssigneeSMS group GmbH
InventorsFrank Marlin Kaussen, Nikolaus Peter Kurt Borowski, Timm Lux, Rolf Degel
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a method and a smelting unit (1) for the pyrometallurgical smelting of metal-containing raw materials, waste materials and/or secondary waste materials (M) in the presence of an oxidizing, reducing and/or inert gas (G).
Claims15
A method for pyrometallurgical smelting, comprising:
- feeding metal-containing raw material, waste material and/or secondary waste material (M) in shredded form to a smelting unit (1) which comprises
- a smelting zone (6),
- a main reaction zone (7), and
- a secondary reaction zone (8);
- and
- smelting the material (M) in presence of an oxidizing, reducing and/or inert gas and/or gas mixture (G), and thereby forming
- a liquid melt phase (9),
- a liquid slag phase (10), and
- a gas phase,
- wherein the oxidizing, reducing and/or inert gas and/or gas mixture (G) is blown into the liquid slag phase (10) via at least one injector (11) arranged in the smelting unit (1) above the liquid slag phase (10) and without contacting the liquid slag phase (10) at an angle of 5 to 85° with respect to a horizontal and tangentially with respect to a notional flow ring (16) having a diameter that corresponds to 0.1 to 0.9 times an inner diameter of the main reaction zone,
- thereby forming a vortex in the main reaction zone (7), and the secondary reaction zone (8).
8 more elements
A method for pyrometallurgical smelting, comprising:
- feeding metal-containing raw material, waste material and/or secondary waste material (M) in shredded form to a smelting unit (1) which comprises
- a smelting zone (6),
- a main reaction zone (7), and
- a secondary reaction zone (8);
- and
- smelting the material (M) in presence of an oxidizing, reducing and/or inert gas and/or gas mixture (G), and thereby forming
- a liquid melt phase (9),
- a liquid slag phase (10), and
- a gas phase,
- wherein the smelting unit (1) comprises a hollow cylinder, hollow cone, or hollow cuboid having a height that is greater than a length and a width,
- wherein the oxidizing, reducing and/or inert gas and/or gas mixture (G) is blown into the liquid slag phase (10) via at least one injector (11) arranged in the smelting unit (1) above the liquid slag phase (10) and without contacting the liquid slag phase (10) at an angle of 5 to 85° with respect to a horizontal.
8 more elements
Dependencies are inferred from the claim text.