A method for purification of crude glycerol, especially crude glycerol derived from biodiesel production using alkaline catalysts. The method comprises combining the crude glycerol with acid, separating a glycerol layer, and treating the glycerol layer to decolorize it.

Title
Method for purification of glycerol from biodiesel production
Application Number
12/221582
Publication Number
20090048472
Application Date
August 5, 2008
Publication Date
February 19, 2009
Inventor
Alfred Karl Schultz
Maple Glen
PA, US
Robert Tryon Hanlon
Philadelphia
PA, US
Rajiv Manohar Banavali
Rydal
PA, US
Agent
Rohm And Haas Company
PA, US
IPC
C07C 29/86
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