Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
29 words
A composition for use in solvent extraction of desired materials from aqueous solution, the composition comprising 10 to 90 wt% monochlorodifluoromethane and 90 to 10 wt% 1, 1, 2-trichloro-1-2,2-trifluroethane.
Claim 2
Dependent Claim
29 words
A composition for use in solvent extraction of desired materials from aqueous solution, the composition comprising 10 to 90 wt% monochlorodifluoromethane and 90 to 10 wt% 1, 1, 2-trichloro-1-2,2-trifluroethane.
Claim 3
Dependent Claim
20 words
A composition as claimed in claim 1 and containing 13 to 32 wt% monochlorodifluoromethane and 87 to 68 wt% 1,1,2-trichloro-1,2,2-trifluoroethane.
Claim 4
Dependent Claim
18 words
3 . A composition as claimed in claim 2 and containing 13 wt% monochlorodifluoromethane and 87 wt% 1,1,2-trichloro-1,2,2-trifluoroethane.
Claim 5
Dependent Claim
117 words
A process for extracting solute from an aqueous solution by contacting the solution with an immiscible solvent in which said solute is soluble, the process comprising contacing said aqueous solution containing a solute that is insoluble in 1,1,2-trichloro-1,2,2-triflurorethane with a mixture of 10 to 90 wt% monochlorodifluoromethane and 90 to 10 wt% 1,3,2-trichloro-1,2,2-trifluoroethane at a pressure sufficient to maintain the mixture in the liquid state, allowing the contacted liquids to return to a quiescent state after said contact thus forming separate liquid layers, separating the liquid layers, vaporizing the monochlorodifluoroethane in the fluorocarbon solvent phase by reducing pressure thereby causing the solute to precipitate or form a second liquid layer, and separating said solute from the 1,3,2-crichloro-1,2,2-trifluoroethane.
Claim 6
Dependent Claim
117 words
A process for extracting solute from an aqueous solution by contacting the solution with an immiscible solvent in which said solute is soluble, the process comprising contacing said aqueous solution containing a solute that is insoluble in 1,1,2-trichloro-1,2,2-triflurorethane with a mixture of 10 to 90 wt% monochlorodifluoromethane and 90 to 10 wt% 1,3,2-trichloro-1,2,2-trifluoroethane at a pressure sufficient to maintain the mixture in the liquid state, allowing the contacted liquids to return to a quiescent state after said contact thus forming separate liquid layers, separating the liquid layers, vaporizing the monochlorodifluoroethane in the fluorocarbon solvent phase by reducing pressure thereby causing the solute to precipitate or form a second liquid layer, and separating said solute from the 1,3,2-crichloro-1,2,2-trifluoroethane.
Claim 7
Dependent Claim
14 words
A process as claimed in claim 4 in which the aqueous solution contains caffeine.