Abstract: A method of preparing a cannabidivarin (CBDv) isolate generally includes a step of dissolving a distillate comprising (cannabidivarin), such as a full spectrum distillate obtained from hemp extract, in alkane solvent to form a first solution, cooling the first solution to within a first temperature range to thereby form first crystals comprising CBDv, dissolving the first crystals in alkane solvent to form a second solution, cooling the second solution to within a second temperature range to thereby form second crystals having a higher CBDv content than the first crystals, dissolving the second crystals in alkane solvent to form a third solution, and cooling the third solution to within a third temperature range to thereby form third crystals having a higher CBDv content than the second crystals. The method can be carried out to prepare crystals having a CBDv content greater than 97 wt %, such as greater than 99 wt % or greater than 99.9 wt %.

Abstract: The method of capturing gaseous heavy metals disclosed herein includes exposing a stream of vapor including the gaseous heavy metals to a reactor bed of carbon (C) and aluminum (Al) in the form of pellets and granules. The gaseous heavy metals include mercury (Hg), mercury oxide (HgxOy), and other heavy metals in ionized or oxidized form.

Abstract: The method of capturing gaseous heavy metals disclosed herein includes exposing a stream of vapor including the gaseous heavy metals to a reactor bed of carbon (C) and aluminum (Al) in the form of pellets and granules. The gaseous heavy metals include mercury (Hg), mercury oxide (HgxOy), and other heavy metals in ionized or oxidized form.