Technology Unit

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Vicinals Separation Column
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Generic TDA Process
Short Name
Vicinals Separation
Description
The Vicinals Separation Column separates out the Toluenediamins with ortho Groups (Vicinals), which boil at slightly lower temperatures (2,3-TDA Boiling Point is 255°C; 3,4-TDA Boiling Point is 265°C) than the desired Product Amines (both 2,4-TDA and 2,6-TDA Boiling Point is 292°C). After removing the Vicinals, the TDA Stream is sent to the Heavy Ends Removal Column.
Link
https://nepis.epa.gov/Exe/ZyNET.exe/9101XOAK.txt?ZyActionD=ZyDocument&Client=EPA&Index=1981%20Thru%201985&Docs=&Query=&Time=&EndTime=&SearchMethod=1&TocRestrict=n&Toc=&TocEntry=&QField=&QFieldYear=&QFieldMonth=&QFieldDay=&UseQField=&IntQFieldOp=0&ExtQField
System Info

Updated by
UserPic  Kokel, Nicolas
Updated
4/8/2022 6:14 PM
Added
3/26/2022 4:25 PM
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