Division BAT 86
United Kingdom
In order to reduce the quantities of salt slag produced from secondary aluminium production, BAT is to use one or a combination of the techniques given below.
| Technique | Applicability | |
|---|---|---|
| a | Increase the quality of raw material used through the separation of the non-metallic constituents and metals other than aluminium for scraps where aluminium is mixed with other constituents | Generally applicable |
| b | Remove oil and organic constituents from contaminated swarf before melting | Generally applicable |
| c | Metal pumping or stirring | Not applicable for rotary furnaces |
| d | Tilting rotary furnace | There may be restrictions on the use of this furnace due to the size of the feed materials |