Purify cbd extract/extractum, why recommend 3-stage molecular distillation?
CBD extract (extractum) is a multi-component mixture. Except CBD, it contains dozens or even
hundreds of compounds including plant essential oil, plant wax, pigment, water, residual solvent,
etc. In order of molecular weight or boiling point, CBD is in the middle segment.
The function of each stage of three stages molecular distillation
1. The first stage is used for the separation of water, solvent and other ultra-low molecular weight
components in the extract.
2. The second stage: the components in the enrichment section whose molecular weight (boiling point)
is less than CBD are isolated.
3. The third stage: the molecular weight (boiling point) of the distillation is close to the CBD enrichment
section, which is used for the subsequent extraction of high-purity CBD.
Larger molecular weight of wax, pigment and other residues in the distillation residue.
If use the single-stage molecular distillation device, the distillation process needs to be repeated
three times. In each process, cbd extract (extractum) needs to be heated. The components of
plant extract are relatively complex. During the heating process, decomposition and polymerization
may occur, forming impure, affect the total efficiency of extraction.
Experimental equipment can use a single stage multiple times, which can reduce the early equipment
investment. The extraction yield loss and repeated heating cost caused by multiple heating may be
much higher than the cost of three stage molecular distillation equipment input, so it is recommended
to use three stage continuous production mode.
CBD oil distillation one stop solution, include molecular distillation equipment, supercritical co2 extraction
machine, crystallization and dewaxing filtration, wiped film evaporator, rotary evaporator, heating and
cooling circulator bath, vacuum pump, spray drying equipment, etc.
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