Method for removing organic liquids from aqueous solutions and mixtures
Abstract
A method for removing organic liquids from aqueous solutions and mixtures. The method employs any porous material preferably in granular form and having small pores and a large specific surface area, that is hydrophobic so that liquid water does not readily wet its surface. In this method, organics, especially organic solvents that mix with and are more volatile than water, are separated from aqueous solution by preferentially evaporating across the liquid/solid boundary formed at the surfaces of the hydrophobic porous materials. Also, organic solvents that are immiscible with water, preferentially wet the surfaces of the hydrophobic material and are drawn within the porous materials by capillary action.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of California, Oakland, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1174780
- Patent Number(s):
- 6709600
- Application Number:
- 09/957,854
- Assignee:
- University Of California, The Regents Of
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Hrubesh, Lawrence W., Coronado, Paul R., and Dow, Jerome P. Method for removing organic liquids from aqueous solutions and mixtures. United States: N. p., 2004.
Web.
Hrubesh, Lawrence W., Coronado, Paul R., & Dow, Jerome P. Method for removing organic liquids from aqueous solutions and mixtures. United States.
Hrubesh, Lawrence W., Coronado, Paul R., and Dow, Jerome P. Tue .
"Method for removing organic liquids from aqueous solutions and mixtures". United States. https://www.osti.gov/servlets/purl/1174780.
@article{osti_1174780,
title = {Method for removing organic liquids from aqueous solutions and mixtures},
author = {Hrubesh, Lawrence W. and Coronado, Paul R. and Dow, Jerome P.},
abstractNote = {A method for removing organic liquids from aqueous solutions and mixtures. The method employs any porous material preferably in granular form and having small pores and a large specific surface area, that is hydrophobic so that liquid water does not readily wet its surface. In this method, organics, especially organic solvents that mix with and are more volatile than water, are separated from aqueous solution by preferentially evaporating across the liquid/solid boundary formed at the surfaces of the hydrophobic porous materials. Also, organic solvents that are immiscible with water, preferentially wet the surfaces of the hydrophobic material and are drawn within the porous materials by capillary action.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 23 00:00:00 EST 2004},
month = {Tue Mar 23 00:00:00 EST 2004}
}
Works referenced in this record:
The Colloid Chemistry of Silica and Silicates: By Ralph K. Iler, Cornell University Press, Ithaca, New York. 324 pp. 1955. $5.50
journal, July 1955
- Jackson, M. L.
- Soil Science Society of America Journal, Vol. 19, Issue 3
Solvent removal from water with hydrophobic aerogels
journal, June 2001
- Hrubesh, L. W.; Coronado, P. R.; Satcher, J. H.
- Journal of Non-Crystalline Solids, Vol. 285, Issue 1-3