Process for the extraction of a compound by a fluorocarbon compound
OwnerRichard Llewellyn Powell, Timothy James Noakesinventors
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Abstract
A process for extracting a compound or composition of matter from a raw material containing that compound or composition as a constituent part is described. The process comprises the steps of (1) contacting a sample of the raw material with an extraction solvent comprising a C1-4 (hydro)fluorocarbon alone or with a co-solvent, and (2) separating the solvent liquor thus obtained containing the extract from the raw material. The process may be used to extract natural products, such as flavored or aromatic oils, and biologically active compounds, such as pesticides and pharmaceuticals.
Claims37
A process for extracting a composition comprising a biologically active compound or a precursor thereof from a raw material containing such a compound or precursor as a constituent part, which process comprises the steps of (1) contacting a sample of the raw material with an extraction solvent comprising a C1-4 (hydro)fluorocarbon, and (2) separating the solvent liquor thus obtained containing the extract from the raw material.
A process as claimed in any one of the preceding claims wherein the extraction solvent comprises a co-solvent in addition to the C1-4 (hydro)fluorocarbon.
A process for extracting a compound or composition of matter from a raw material containing that compound or composition as a constituent part, which process comprises the steps of (1) contacting a sample of the raw material with an extraction solvent comprising a C1-4 (hydro)fluorocarbon and a co-solvent, and (2) separating the solvent liquor thus obtained containing the extract from the raw material.
A process for extracting a natural product from a plant material containing that product as a constituent part, which process comprises the steps of (1) contacting a sample of the plant material with an extraction solvent comprising a C1-4 (hydro)fluorocarbon and a co-solvent, and (2) separating the solvent liquor thus obtained containing the extract from the plant material.
A process as claimed in any one of the preceding claims wherein the extraction solvent comprises a (hydro)fluorocarbon having a boiling point of 15° C. or below.
A process as claimed in any one of the preceding claims wherein the extraction solvent comprises a C1-4 hydrofluorocarbon.
Dependencies are inferred from the claim text.