Patent ID: 10941131

Abstract:
A solvent-free method for converting CBD or delta-9 THC-A to delta-9 THC and delta-8 THC includes adding CBD to a reaction vessel, streaming an inert gas through the reaction vessel, heating the CBD while stirring to melt the CBD, stirring the melting CBD, adding concentrated hydrochloric acid as a catalyst to the melting CBD while stirring, increasing the temperature over time to a temperature not to exceed the boiling point of reactants and products in the reaction vessel, holding the reaction vessel at a temperature less than the boiling point temperature for the reactants and products in the reaction vessel for an amount of time to allow the complete conversion of the CBD, and bubbling an inert gas into the reaction products to remove free ions of hydrogen and chloride. The CBD can be replaced in whole or in part by delta-9 THC-A as the reactant.