Solvent extraction process
OwnerPaul Alan Dowdle, Stuart Corr +1inventors
InventorsPaul Alan Dowdle, Stuart Corr, Helen Harris
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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 the raw material with an extraction solvent comprising a heptafluoropropane so as to extract the compound or composition from the raw material into the solvent, and (2) separating the solvent containing the extracted compound or composition from raw material. The process is particularly adapted for extracting flavours, fragrances and neutraceuticals from materials of plant origin.
Claims20
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 the raw material with an extraction solvent comprising a heptafluoropropane so as to extract the compound or composition from the raw material into the solvent, and (2) separating the solvent containing the extracted compound or composition from the raw material.
A process as claimed in any one of the preceding claims, wherein the extraction solvent comprises 1,1,1,2,3,3,3-heptafluoropropane (R-227ea).
A process as claimed in any one of the preceding claims, wherein the extraction solvent comprises a co-solvent in addition to the heptafluoropropane.
A process as claimed in any one of the preceding claims, wherein the extraction solvent is in liquid form.
A process as claimed in any one of the preceding claims which is conducted at a temperature in the range of from −60 to 150° C.
Dependencies are inferred from the claim text.