Processing methods and processing apparatus
AssigneeAltek Europe Limited
InventorsAlan Peel, Andrew Gibbs
Life of this patent
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Abstract
A method and apparatus for processing a material are provided, the material being the upper layer from a metal melting process, the material containing one or more salts, the material containing one or more metals, the salts and/or metals being recycled as a result of the method/apparatus. The method includes feeding the material to a leaching step; obtaining a leachate from the leaching step; feeding the leachate to a drying step or spray drying step; obtaining a solid from the drying step or spray drying step. Off gases from the leaching step are used to provide heat to the drying step. The drying step provides a product well suited to being turned into pellets for reuse.
Claims7
A system for processing a material containing one or more salts and one or more metals, the system including:
- a leaching tank having:
- an inlet configured to provide material to the leaching tank;
- and
- a first outlet configured to transfer leachate from the leaching tank;
- a dryer having:
- an inlet directly coupled to the outlet of the leaching tank;
- an outlet configured to transfer solids from the dryer;
- a first feeder configured to provide off gas from the leaching tank to an off gas stream processor;
- and
- a second feeder configured to provide hot gas to the dryer, wherein the hot gas is provided to the second feeder by the off gas stream processor and/or possesses energy generated by the off gas stream processor.
Dependencies are inferred from the claim text.