Okay so I was thinking about the reasons why certain compounds were able to adsorb onto bentonite when they’re dissolved in an alkane, i.e. CRC. The compiubds absorbed to the media are more attracted to the media than the solution they are dissolved in. This is because the compiunds share more in common with the bentonite media than the solvent in which they’re contained. Bentonite media tends to attract semi polar molecules as opposed to chiefly non polar molecules, so my idea is what if you took a winterized solution of a cannabis extract and reduced it to 20% of its original alcohol content by volume and then dissolved this mixture in an alkane like heptane for example. If you sent lthe solution through a thick bentonite cake would the bentonite cake preferentially adsorb the alcohol from the solution along with the pigments since they are both less polar and so would have a greater attraction towards the weakly polsr media than the heptane solution they are dissolved in?
Could this potentially be a way of removing the last bit of alcohol from a winterized extract without having to introduce too much heat? Propane comes to mind…