Wish I knew.
Lets think on it

A fractional distillation sounds difficult.
Will need tight temperature control in a closed system.
Don't want to just "burn off" THC, it has medical uses.

Might be able to do a column separation, but it will be messy and imprecise.
Analytical chromatography might be doable but requires some skills.
A preparative gas chromatography is ideal, but way beyond my means.
I'm wondering if it would work to separate the components in their acidic form and then decarb with heat.

Also wondering if THC and CBD can be persuaded to become salts.
That might simplify the fractionating.

If we all go ponder this, and do some reading.
We can probably figure this out.

Meet you all back here in a day or three.
Lets see what we can see.

Obligatory Disclaimer:

I am NOT a chemist.
Don't even play one on TV.
I'm just some guy on the net who reads way too much.

Aloha,
Weezard
Weezard Reviewed by Weezard on . Reducing THC Content in Cannabis Extracts After months of trying, I have come to the conclusion that my cancer patient has 0, no, nada tolerance for high THC Cannabis Oils. I've tried extracts with White Rhino, Northern Lights crosses, and Blueberry. All are too high in THC and he cannot take them for more than a few weeks, even in very small doses. Although they do alleviate his pain to a point, he is so uncomfortable he stops taking it. Which brings me to ask this question: If I had access to high CBD Strains such as CBD Crew Rating: 5