Process for precipitation of Carnallite from aqueous solutions
AssigneeDead Sea Works Ltd.
InventorShai Rhamim
Life of this patent
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Abstract
There is provided a process for extracting Carnallite from an aqueous solution, the process comprising steps of pre-heating the solution comprising said Carnallite in a series of at least two heat exchangers, thereby obtaining a pre-heated solution; and concentrating said pre-heated solution in a series of at least two evaporation units, whereby forming a concentrated solution and hot vapors; wherein at least one of said evaporation units employs steam for indirect heating, and wherein at least one of said heat exchanger units employs the heat of said hot vapors formed in said evaporation units.
Claims14
A process for extracting Carnallite from an aqueous solution, the process comprising steps of
- i) pre-heating the solution comprising said Carnallite in a series of at least two heat exchangers, thereby obtaining a pre-heated solution;
- and
- ii) concentrating said pre-heated solution in a series of at least two evaporation units, whereby forming a concentrated solution and hot vapors;
- wherein at least one of said evaporation units employs steam for indirect heating, and wherein at least one of said heat exchanger units employs the heat of said hot vapors formed in said evaporation units.
A process for extracting Carnallite from an aqueous solution, the process comprising steps of
- i) pre-heating the solution comprising said Carnallite in a series of at least two heat exchangers, thereby obtaining a pre-heated solution;
- and
- ii) concentrating said pre-heated solution in a series of at least two flashers, whereby forming a concentrated solution and hot vapors;
- and
- iii) feeding the concentrated solution through a series of at least two cooler evaporators to provide a cool concentrated solution;
- iv) precipitating Carnallite from said cool concentrated solution.
Dependencies are inferred from the claim text.