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[huatsiang]

Dear all

 

My boss want me to calculate how much soda ash i need to put theoritically to my crude glycerin in order to remove FAE. As i know it is hard to do this because everyimt the FAE molecular number changes and this FAE can consist of FAE and FFA.

 

I have also read that soda ash does not react with FAE and only react with FFA is that really true? and i also read that the amount of soda ash i use will be twice then the amount of caustic soda because caustic soda is stonger then soda ash but from the reaction equation

 

2R-cooh+Na2co3--->2RCooNa +co2 +h20

 

if caustic soda is

 

R-Cooh+Naoh-->RCooNa +h20

 

Am i doing this right?

 

best regards