| 摘要 |
<p>In continuous extraction and simultaneous neutralisation of acids or bases dissolved in non-aq. media with aq. bases or acids, extraction column used has stirrers which move up and down and rotate. Technique is useful for deacidification of vegetable oils, selective extraction of natural or synthetic N bases and re-extraction with aq. acid or selective extraction with acid from organic solvent contg. N base mixed with neutral substances. Space-time yield is considerably better than usual and operating and plant costs are relatively low.</p> |
