Research Article
Regeneration of Spent Lubricant Refining Clays by Solvent Extraction
Table 5
The influence of storage time on the oil recovery.
| Storage time, h | Ideal oil, g/100 g (spent clay) | Nonideal oil, g/100 g (spent clay) | Total oil, g/100 g (spent clay) |
| 0 | 18.2 | 14.6 | 32.8 | 24 | 18.1 | 14.5 | 32.6 | 48 | 18.1 | 14.4 | 32.5 | 72 | 18.0 | 14.4 | 32.4 | 168 | 17.9 | 14.3 | 32.2 |
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