Division BAT 106
United Kingdom
In order to reuse or recover the sulphuric acid collected from the battery recovery process, BAT is to organise operations on site so as to facilitate its internal or external reuse or recycling, including one or a combination of the techniques given below.
| Technique | Applicability | |
|---|---|---|
| a | Reuse as a pickling agent | Generally applicable depending on the local conditions such as presence of the pickling process and compatibility of the impurities present in the acid with the process |
| b | Reuse as raw material in a chemical plant | Applicability may be restricted depending on the local availability of a chemical plant |
| c | Regeneration of the acid by cracking | Only applicable when a sulphuric acid or liquid sulphur dioxide plant is present |
| d | Production of gypsum | Only applicable if the impurities present in the recovery acid do not affect the gypsum quality or if gypsum of a lower quality can be used for other purposes such as a flux agent |
| e | Production of sodium sulphate | Only applicable for the alkaline leaching process |