FIELD OF THE INVENTION

The present disclosure relates tocannabisoil preparation and, in particular, to methods for removing sulfur fromcannabisproducts, such as natural cannabinoids, cannabinoid aetates, and cannabinoid carboxylates, during the preparation ofcannabisoil.

BACKGROUND

Cannabisproducts originate with commercially growncannabiscrops. As with many commercially grown crops, fertilizers are used in the production ofcannabis. Fertilizing crops is an essential step in the cultivation of a healthy and bountiful crop. Due to their importance, there are a large variety of fertilizers on the market containing a variety of chemicals, such as sulfur. As a result, manycannabisproducts have come into contact with sulfur.

Sulfur is an elemental chemical that has been used in the farming industry as a component of a variety of fertilizers and is registered in the United States by the Environmental Protection Agency (“EPA”) for use as an insecticide, fungicide, and rodenticide on several hundred food and feed crops on ornamental, turf, and residential sites. It is considered green for insecticides and fungicides.

Sulfur poses a challenge in thecannabisindustry. During the extraction process, sulfur is taken up and made into distillate. This results in a sulfur smell being generated during the extraction process and result in a sour taste to the distillate. Therefore, it is essential to remove the sulfur fromcannabisproducts prior to distributingcannabisproducts in the marketplace.

For at least these reasons, a versatile and cost-effective means of removing sulfur fromcannabisproducts is needed.

SUMMARY

According to an aspect of the present disclosure, a method for removing sulfur from acannabisproduct is provided. The method includes dissolving, in a solvent, thecannabisproduct including sulfur, forming a dissolved solution, and mixing an oxidation agent into the dissolved solution, causing the dissolved solution to form into a plurality of solutions. The plurality of solutions include a water solution and an organic solution, the water solution includes sulfur, and the organic solution includes thecannabisproduct. The method further includes removing the water solution from the plurality of solutions.

According to various embodiments, the method further includes washing the organic solution with a brine solution, and removing the brine solution.

According to various embodiments, the method further includes removing the solvent from the organic solution in a reduced pressure.

According to various embodiments, thecannabisproduct is a distilledcannabismaterial.

According to various embodiments, thecannabisproduct is a crudecannabismaterial.

According to various embodiments, the solvent is a non-water soluble miscible solvent.

According to various embodiments, the solvent is an organic solvent.

According to various embodiments, the non-water soluble miscible solvent is an organic solvent.

According to various embodiments, the oxidation agent includes sodium perchlorate.

According to various embodiments, the non-water soluble miscible solvent includes at least one solvent selected from the group consisting of: an alkane; and an aromatic.

According to another aspect of the present disclosure, a method for removing sulfur from acannabisproduct is provided. The method includes dissolving thecannabisproduct in a non-water soluble miscible solvent, forming a dis-solved solution, and mixing an oxidation agent into the dissolved solution, causing the dissolved solution to form into a plurality of solutions. The plurality of solutions include a water solution and an organic solution, the water solution includes sulfur, and the organic solution includes thecannabisproduct. The method further includes removing the water solution from the plurality of solutions, washing the organic solution with a brine solution, and removing the brine solution.

According to various embodiments, the non-water soluble miscible solvent is an organic solvent.

According to various embodiments, the oxidation agent includes sodium perchlorate.

According to various embodiments, the non-water soluble miscible solvent includes at least one solvent selected from the group consisting of: an alkane; and an aromatic.

According to various embodiments, thecannabisproduct is a distilledcannabismaterial.

According to various embodiments, thecannabisproduct is a crudecannabismaterial.

