Re: ORGLIST:distillation of Triethanolamine

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From: John S. Roberts (john.roberts$##$engineering-experts.com)
Date: Thu Apr 24 2003 - 07:14:46 EDT


A wiped film evaporator works pretty well with these type of compounds.
Obviously, a tight cut is going to be impossible with a wiped film
evaporator, but a quick evaporation and removal of lights and color is
feasible.
John Roberts
----- Original Message -----
From: "Yuehui Zhou" <yuehuizhou$##$hotmail.com>
To: <mzmj$##$hiroshima-u.ac.jp>
Cc: <everybody$##$orglist.net>
Sent: Wednesday, April 23, 2003 8:33 PM
Subject: Re: ORGLIST:distillation of Triethanolamine

>
> Such hydroxy compound may not be destillable at all (too strong hydrogen
> bonds).
> What is the impurity you want to remove? If the impurity is not an amine,
> you can make your product a salt with HCl, then extract it with organic
> solvents. Then release the amine with a base.
>
> Y. Zhou
>
>
> >From: mohd zulkefeli <mzmj$##$hiroshima-u.ac.jp>
> >To: <everybody$##$orglist.net>
> >Subject: ORGLIST:distillation of Triethanolamine
> >Date: Fri, 18 Apr 2003 17:25:54 +0900
> >
> >Hi everybody,
> >
> >I'm trying to distill a triethanolamine by reduce-pressure distillation,
> >heating till about 200 degree celsius but it seems doesn't work. Does
> >anybody knows the right method to distil this reagent?
> >
> >Thanks in advanced!
> >
> >zulkefeli
> >
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