Process for preparing organoclays for aqueous and polar-organic systems
Abstract
A process for preparing organoclays as thixotropic agents to control the rheology of water-based paints and other aqueous and polar-organic systems. The process relates to treating low-grade clay ores to achieve highly purified organoclays and/or to incorporate surface modifying agents onto the clay by adsorption and/or to produce highly dispersed organoclays without excessive grinding or high shear dispersion. The process involves the treatment of impure, or run-of-mine, clay using an aqueous biphasic extraction system to produce a highly dispersed clay, free of mineral impurities and with modified surface properties brought about by adsorption of the water-soluble polymers used in generating the aqueous biphasic extraction system. This invention purifies the clay to greater than 95%.
- Inventors:
-
- Naperville, IL
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 873486
- Patent Number(s):
- 6172121
- Assignee:
- University of Chicago (Chicago, IL)
- 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 C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- process; preparing; organoclays; aqueous; polar-organic; systems; thixotropic; agents; control; rheology; water-based; paints; relates; treating; low-grade; clay; ores; achieve; highly; purified; incorporate; surface; modifying; adsorption; produce; dispersed; excessive; grinding; shear; dispersion; involves; treatment; impure; run-of-mine; biphasic; extraction; free; mineral; impurities; modified; properties; brought; water-soluble; polymers; generating; purifies; 95; biphasic extraction; water-soluble polymers; aqueous biphasic; modified surface; process involves; surface properties; soluble polymer; process relates; highly dispersed; produce highly; water-soluble polymer; surface modifying; modifying agent; shear dispersion; water-based paint; soluble poly; polar-organic systems; preparing organoclays; /516/106/501/507/524/
Citation Formats
Chaiko, David J. Process for preparing organoclays for aqueous and polar-organic systems. United States: N. p., 2001.
Web.
Chaiko, David J. Process for preparing organoclays for aqueous and polar-organic systems. United States.
Chaiko, David J. Mon .
"Process for preparing organoclays for aqueous and polar-organic systems". United States. https://www.osti.gov/servlets/purl/873486.
@article{osti_873486,
title = {Process for preparing organoclays for aqueous and polar-organic systems},
author = {Chaiko, David J},
abstractNote = {A process for preparing organoclays as thixotropic agents to control the rheology of water-based paints and other aqueous and polar-organic systems. The process relates to treating low-grade clay ores to achieve highly purified organoclays and/or to incorporate surface modifying agents onto the clay by adsorption and/or to produce highly dispersed organoclays without excessive grinding or high shear dispersion. The process involves the treatment of impure, or run-of-mine, clay using an aqueous biphasic extraction system to produce a highly dispersed clay, free of mineral impurities and with modified surface properties brought about by adsorption of the water-soluble polymers used in generating the aqueous biphasic extraction system. This invention purifies the clay to greater than 95%.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2001},
month = {Mon Jan 01 00:00:00 EST 2001}
}