| abstract |
The present invention relates to a process for the purification of triethylenediaminen(TEDA), in which TEDA evaporates and the vaporous TEDA into a liquidnSolvent is introduced and then crystallized from this, thenmother liquor obtained after crystallization of the TEDA with an extractantnis extracted, which is not or only slightly miscible with the solvent of the mother liquornand in which TEDA dissolves well, and the TEDA that is obtained after extraction is depleted of TEDAnMother liquor and / or the one used for extraction, enriched with TEDAnExtractant returns in the process. |