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BASF Aktiengesellschsft
| BASF Aktiengesellschsft Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20090250409 | PURIFICATION OF IONIC LIQUIDS - The invention relates to a process for purifying an ionic liquid, which comprises the steps (a) partial crystallization of the ionic liquid from its melt and (b) separation of the crystals from the residual melt. | 10-08-2009 |