METHODS FOR DECOLORIZING COMPOSITIONS COMPRISING BETAINES

摘要

The invention relates to a process for decolorizing a composition comprising a betaine comprising the steps of (a) providing a solution of the composition in an organic solvent, (b) contacting the solution with a decolorant, wherein the decolorant is a polar solid decolorant. The invention also relates to uses of ion exchange materials and decolorized solutions and compositions obtainable by the inventive process.