Modified clay sorbents
Abstract
A novel modified clay sorbent and method of treating industrial effluents to remove trace pollutants, such as dioxins, biphenyls, and polyaromatics such as benzo(a)pyrene and pentachlorophenol. The novel clay sorbent has a composite structure in which the interlayer space of an expandable clay, such as smectite, is filled with polyvalent or multivalent inorganic cations which forces weaker surfactant cations to locate on the surface of the clay in such an orientation that the resulting composite is hydrophilic in nature. A specific example is cetylpyridinium-hydroxy aluminum-montmorillonite. In certain embodiments, a non-expanding clay, such as kaolinite, is used and surfactant cations are necessarily located on an external surface of the clay. A specific example is cetylpyridinium-kaolinite.
- Inventors:
-
- Ann Arbor, MI
- Livonia, MI
- Issue Date:
- Research Org.:
- University of Michigan (Ann Arbor, MI)
- OSTI Identifier:
- 867336
- Patent Number(s):
- 4916095
- Assignee:
- University of Michigan (Ann Arbor, MI)
- 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:
- FG22-87PC79918
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- modified; clay; sorbents; novel; sorbent; method; treating; industrial; effluents; remove; trace; pollutants; dioxins; biphenyls; polyaromatics; benzo; pyrene; pentachlorophenol; composite; structure; interlayer; space; expandable; smectite; filled; polyvalent; multivalent; inorganic; cations; forces; weaker; surfactant; locate; surface; orientation; resulting; hydrophilic; nature; specific; example; cetylpyridinium-hydroxy; aluminum-montmorillonite; embodiments; non-expanding; kaolinite; necessarily; located; external; cetylpyridinium-kaolinite; resulting composite; external surface; composite structure; treating industrial; specific example; clay sorbent; modified clay; trace pollutants; remove trace; /502/
Citation Formats
Fogler, H Scott, and Srinivasan, Keeran R. Modified clay sorbents. United States: N. p., 1990.
Web.
Fogler, H Scott, & Srinivasan, Keeran R. Modified clay sorbents. United States.
Fogler, H Scott, and Srinivasan, Keeran R. Mon .
"Modified clay sorbents". United States. https://www.osti.gov/servlets/purl/867336.
@article{osti_867336,
title = {Modified clay sorbents},
author = {Fogler, H Scott and Srinivasan, Keeran R},
abstractNote = {A novel modified clay sorbent and method of treating industrial effluents to remove trace pollutants, such as dioxins, biphenyls, and polyaromatics such as benzo(a)pyrene and pentachlorophenol. The novel clay sorbent has a composite structure in which the interlayer space of an expandable clay, such as smectite, is filled with polyvalent or multivalent inorganic cations which forces weaker surfactant cations to locate on the surface of the clay in such an orientation that the resulting composite is hydrophilic in nature. A specific example is cetylpyridinium-hydroxy aluminum-montmorillonite. In certain embodiments, a non-expanding clay, such as kaolinite, is used and surfactant cations are necessarily located on an external surface of the clay. A specific example is cetylpyridinium-kaolinite.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 1990},
month = {Mon Jan 01 00:00:00 EST 1990}
}