The invention provides a plurality of methods which may be employed as a single method or a plurality of sequential method steps in the isolation and purification of Cannabidiol from Hemp plants. It also provides methods for having a terpene-rich fraction as a byproduct of the method. Depending upon the ultimate objective, the individual method components may be used separately or combined with one or more method steps to accomplish the objectives.

A solvent extraction process for desalination of seawater. The process uses a special class of polar organic solvents to preferentially dissolve salt-free water from salty water, which exhibits a reverse solubility-temperature behavior (i.e., the solubility of water in the solvent is high at room temperature but significantly lower at higher temperatures). The desalination process includes adding these special class of solvents to sea or salty water at room temperature, separating the solvent-water phase (organic phase) from the remaining mass of salt-rich water (aqueous phase), heating the solvent-water phase to a higher temperature and recovering the relatively salt-free water that separates out. The process is simple, fast, ecologically safe and energy efficient.

A desulfurization system has an oxidation process unit, and a multi-stage, liquid-liquid extraction unit in series with the oxidation process unit. The multi-stage, liquid-liquid extraction unit spits a fuel input from the oxidation process unit into a desulfurized fuel that is output for use, and a by-product. A solvent/sulfur/hydrocarbon separation process unit receives the by-product from the multi-stage, liquid-liquid extraction unit.

A system and process for direct lithium extraction from geothermal brines, and more particular to the sequential combination of a binary cycle geothermal plant, a direct lithium extraction circuit, a lithium chloride concentration and purification circuit, and a lithium battery chemical processing circuit, for the production of battery-quality lithium hydroxide monohydrate, lithium carbonate or both from geothermal brines. The processing circuits are powered by the electricity and heat produced by the binary cycle geothermal plant without the use of carbon-based fuels. Non-condensable gases that may come out of solution from the geothermal brine are not emitted into the atmosphere.

In an embodiment is provided a process to re-refine used oil that includes introducing a used oil and a solvent to a separation unit under separation conditions selected to produce a purified oil product, the separation unit comprising a porous membrane, a semiporous membrane, or both; and separating the used oil to obtain an effluent comprising a purified oil product. In another embodiment is provided an apparatus for re-refining used oil that includes a separation unit comprising a porous or semiporous membrane; a used oil feed coupled to an inlet of the separation unit; and an inlet of a diffusate collection unit coupled to an outlet of the separation unit. In another embodiment is provided a composition generated from a membrane separation process that includes a base oil, the composition having a soot content of about 0.05% or less.

An object of the present invention is to provide a chemical liquid purification method by which a chemical liquid capable of inhibiting the occurrence of short in a semiconductor substrate manufactured by a photolithography process is obtained. Another object of the present invention is to provide a chemical liquid manufacturing method and a chemical liquid. The chemical liquid purification method of the present invention includes a purification step of filtering a liquid to be purified by using a filter, in which a filter satisfying a condition 1 or a condition 2 in the following test is used as the filter. Test: 1,500 ml of a test liquid formed of the organic solvent is brought into contact with the filter for 24 hours under a condition of 23° C., and a content of particles containing at least one kind of metal selected from the group consisting of Fe, Al, Cr, Ni, and Ti in the test liquid after the contact satisfies a predetermined condition.

A purification processing apparatus for supplying purified isopropyl alcohol to a substrate processing apparatus. The purification processing apparatus includes: a processing chamber in which unpurified isopropyl alcohol and ionic liquid are mixed, and the isopropyl alcohol and the ionic liquid are separated to purify the isopropyl alcohol; an unpurified solvent supply port configured to supply the unpurified isopropyl alcohol to the processing chamber; an ionic liquid supply port configured to supply the ionic liquid to the processing chamber; and a purified solvent outlet configured to supply the purified isopropyl alcohol from the processing chamber to the substrate processing apparatus.

A method for purification of a styrene-containing feedstock includes steps of introducing the styrene-containing feedstock into the middle of an extractive distillation column, and a solvent for the extractive distillation into the upper part of the column; discharging a raffinate oil from the top of the column, and a rich solvent rich in styrene from the bottom of the column. The rich solvent is then introduced into the middle of the solvent recovery column for vacuum distillation to obtain a crude styrene from the top of the solvent recovery column, and a lean solvent is discharged from the bottom of the solvent recovery column and recycled to the upper part of the extractive distillation column. A portion of the rich solvent is sent to a solvent purification zone for a liquid-liquid extraction using water to obtain a mixture of a styrene polymer and styrene.

The present disclosure relates to isolating one or more cannabinoids from an input mixture. There is disclosed an apparatus that comprises a mixing vessel, a volatizing unit, and a distillation unit. The mixing vessel combines a first input mixture and a high boiling-point carrier agent to generate a second input mixture. The volatizing unit volatilizes cannabinoids from the second input mixture for separating the mixture into a cannabinoid-containing vapor stream and a residue. The distillation unit receives the cannabinoid-containing vapor stream and separates a first cannabinoid from at least a second cannabinoid. There are also disclosed methods that comprise the steps of combining a first input mixture with a high boiling-point carrier agent to provide a second input mixture, volatilizing the second input mixture into a vapor stream containing one or more cannabinoids and a residue, and separating a first cannabinoid from a second in the distillation unit.

A process for rendering excavation material inert for the purpose of their analysis, of their storage and/or of their valorisation. The process for inerting the excavation material includes adding an organic acid, of a complexing agent or of a diaminotetracarboxylic acid to the excavation material, the complexing agent being chosen from a sugar alcohol, a cationic surface-active agent and their mixtures. Also, a method of determining the concentration by weight of a polluting inorganic element included in an excavated material, a method of storage of the inert excavation material, and a method of valorising the inerted material.