Reducing aqueous boron concentrations with reverse osmosis membr

Details Reducing aqueous boron concentrations with reverse osmosis membr Reducing aqueous boron concentrations with reverse osmosis membr

1992-05-01

1993-10-05

Sever, Frank

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

21050038, B01D 6102

Patent

active

052501850

ABSTRACT:
A method of treating an aqueous charge liquid, such as oilfield produced waters, containing boron and solubilized hydrocarbon compounds to reduce boron concentration, which comprises water softening to remove substantially all divalent cations, raising the pH of the liquid above about 9.5, and driving the liquid through a reverse osmosis membrane.

REFERENCES:
patent: 3953580 (1976-04-01), Allen et al.
patent: 4755298 (1988-07-01), Grinstead

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