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US 2020/0023316 A1Published application
A thermo-responsive solution, and method of use therefor
AssigneeAquafortus Technologies Limited
InventorDaryl Joseph BRIGGS
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Abstract
The present invention relates to a thermo-responsive solution and in particular, a solution for use in an osmosis process that is suitable for separating or purifying solutes and or water from an aqueous solution on a large scale and under energy efficient conditions.
Claims35
A thermo-responsive osmotic solution having a lower critical solution temperature in a solvent suitable for use in osmosis comprising:
- a) at least one tertiary amine containing compound;
- and
- b) at least one enolisable carbonyl of Formula I,
- wherein
- c) R1 and R2 are independently selected from a —C1-C7 alkyl or a —C3-C7 monocyclic or a -phenyl;
- or
- d) one of R1 or R2 is selected from a —O—(C1-C7 alkyl) and the other is selected from a —C1-C7 alkyl, or
- e) R1 and R2 together, with the carbonyl of Formula I, form
- a. a 3-15 membered monocyclic ketone or
- b. a 3-15 membered monocyclic heterocyclic ketone;
- or
- c. acetophenone;
- and
- wherein in use at least one of the tertiary amine containing compound or the at least one enolisable carbonyl is immiscible with the solvent at or above 20 degrees Celsius and at 1 atmosphere.
11 more elements
Dependencies are inferred from the claim text.