Patent ID: 11858831
Assignee: RESEARCH TRIANGLE INSTITUTE
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 7:
8. A desalination apparatus using a solvent extraction scheme, the desalination apparatus comprising:
a source water supply module configured to supply first source water comprising salt of a first concentration and water;
a functional solvent supply module configured to supply a functional solvent of which solubility in water varies according to temperature;
a mixing module configured to generate mixture water by mixing the first source water and the functional solvent;
a first separation module configured to receive the mixture water from the mixing module and dissolve the water contained in the first source water in the functional solvent at a first temperature;
a salt crystallization module configured to receive, from the first separation module, second source water comprising salt of a second concentration that is higher than the first concentration, the second source water being the first source water from which the water has been removed;
a second separation module configured to receive the functional solvent in which the water has been dissolved, from the first separation module, and thermally separate the water and the functional solvent at a second temperature that is higher than the first temperature; and
a cooling module configured to provide cooling water that cools the salt crystallization module,
wherein the salt crystallization module further comprises seeds that crystallize the salt of the second concentration, and
wherein the first separation module is configured to separate the mixture water into layers.