Process for treatment of aqueous solutions of polyhydric alcohol

Details Process for treatment of aqueous solutions of polyhydric alcohol Process for treatment of aqueous solutions of polyhydric alcohol

1993-06-28

1996-04-23

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210665, 210666, 210669, 210688, 210694, 210724, 210725, G02F 900

Patent

active

055100368

ABSTRACT:
The process relates to the treatment of aqueous solutions of polyhydric alcohols to remove heavy metal components, oils, organic contaminants and, optionally, water. The process is particularly well suited for use in the treatment of spent antifreeze/coolant from the cooling systems of internal combustion engines.

REFERENCES:
patent: 3575854 (1971-04-01), Richards
patent: 4946595 (1990-08-01), Miller
patent: 5223144 (1993-06-01), Woyciesjes et al.

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