Purification of an oil-containing liquid using a surface treated

Details Purification of an oil-containing liquid using a surface treated Purification of an oil-containing liquid using a surface treated

1991-10-07

1993-05-11

Morris, Theodore

Mineral oils: processes and products

Refining

Purifying used oil

208187, 210649, 210650, 210651, 210799, C10M17500, C10G 3306, B01D 6100

Patent

active

052098389

ABSTRACT:
A process is described for purifying an oil-containing liquid to remove aqueous and solid impurities which comprises passing said liquid through a permeable inorganic membrane previously treated by contacting the membrane with an organic reactant selected from the group consisting of a phosphonic acid, a phosphinic acid, a monocarboxylic acid, a dicarboxylic acid, a boronic acid, a phosphoric acid ester and a precursor which decomposes upon contact with said inorganic membrane to form one of said organic reactants whereby the treated membrane is capable of separating aqueous and solid impurities from hydrocarbons in the oil-containing liquid.

REFERENCES:
patent: 4788176 (1988-11-01), Wieserman et al.
patent: 4957890 (1990-09-01), Wieserman et al.
patent: 4962073 (1990-10-01), Martin et al.

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