I am making carotene butter by mixing clarified butter and carrot juice.  The idea is that I now need to separate the carotene infused butter from the juice. The only problem being that they are very well emulsified together.  I tried blending it more until the heat and friction would break it, but that has not happened, even after more than 5 minutes of blending on high (my blender's limit.  I tried heating the liquid to a boil but this did nothing either. Lastly, I tried decanting it, but it barely separates even after a long time.  How can I break the emulsion? 
Chill it.  The butter will solidify and upon remelting the emulsion will be broken.  I've never had a butter emulsion not break after chilling. 