Division BAT 22
United Kingdom
In order to use energy efficiently in secondary copper production, BAT is to use one or a combination of the techniques given below.
| Technique | Applicability | |
|---|---|---|
| a | Reduce the water content of the feed material | Applicability is limited when the moisture content of the materials is used as a technique to reduce diffuse emissions |
| b | Produce steam by recovering excess heat from the smelting furnace to heat up the electrolyte in refineries and/or to produce electricity in a co-generation installation | Applicable if an economically viable demand of steam exists |
| c | Melt scraps using the excess heat that is produced during the smelting or converting process | Generally applicable |
| d | Holding furnace between processing stages | Only applicable for batch-wise operated smelters where a buffer capacity of molten material is required |
| e | Preheat the furnace charge using the hot process gases from the melting stages | Only applicable to shaft furnaces |