Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Patent
1984-02-06
1988-03-29
Spear, Frank
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
210 962, 21032172, B01D 1300
Patent
active
047341980
ABSTRACT:
A system and process for preparation of dialysis solution from dry chemicals and water on a large scale batch basis. The required amount of water is metered into a dialysis solution tank. Water from the tank is pumped into a spray head which is positioned above a shipping drum containing predetermined amounts of chemicals. Water rains down on the chemicals dissolving and/or entraining the same and the resulting slurry is returned to the dialysate tank as a slurry by means of a pickup wand and suction source. The liquid and chemicals in the dialysis solution tank are continually cycled until all the chemicals in the drum have been removed. Typically, an additional drum containing other kinds of chemicals is then added to the dialysis solution tank in the same manner. Circulation of the solution is continued within the tank until a fully uniform solution results. Dialysis solution in the tank is then filtered and checked for conductivity prior to its direct use in hemodialysis or dilution in a conventional proportioning system.
REFERENCES:
patent: 2270372 (1942-01-01), Hunter
patent: 3352779 (1967-11-01), Austin et al.
patent: 4045004 (1977-08-01), Berger
patent: 4116834 (1978-09-01), King
patent: 4265760 (1981-05-01), Abel et al.
Caine Earnest R.
Cosentino Louis C.
Cracauer Raymond F.
Fuller Larry E.
Harm William H.
Minntech Corporation
Spear Frank
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