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Title: Method of manipulating the chemical properties of water to improve the effectiveness of a desired process

Abstract

The method of the present invention is adapted to manipulate the chemical properties of water in order to improve the effectiveness of a desired process. The method involves heating the water in the vessel to subcritical temperatures between 100.degree. to 374.degree. C. while maintaining sufficient pressure to the water to maintain the water in the liquid state. Various physiochemical properties of the water can be manipulated including polarity, solute solubility, surface tension, viscosity, and the disassociation constant. The method of the present invention has various uses including extracting organics from solids and semisolids such as soil, selectively extracting desired organics from liquids, selectively separating organics using sorbent phases, enhancing reactions by controlling the disassociation constant of water, cleaning waste water, removing organics from water using activated carbon or other suitable sorbents, and degrading various compounds.

Inventors:
 [1];  [1];  [1];  [2];  [3]
  1. Grand Forks, ND
  2. York, GB
  3. Leeds, GB
Issue Date:
Research Org.:
Univ. of North Dakota, Grand Forks, ND (United States)
OSTI Identifier:
874261
Patent Number(s):
6352644
Assignee:
Energy & Environmental Research Center Foundation (Grand Forks, ND)
Patent Classifications (CPCs):
C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
B - PERFORMING OPERATIONS B09 - DISPOSAL OF SOLID WASTE B09C - RECLAMATION OF CONTAMINATED SOIL
DOE Contract Number:  
FC21-94MC31388
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; manipulating; chemical; properties; water; improve; effectiveness; process; adapted; manipulate; involves; heating; vessel; subcritical; temperatures; 100degree; 374degree; maintaining; sufficient; pressure; maintain; liquid; physiochemical; manipulated; including; polarity; solute; solubility; surface; tension; viscosity; disassociation; constant; extracting; organics; solids; semisolids; soil; selectively; liquids; separating; sorbent; phases; enhancing; reactions; controlling; cleaning; waste; removing; activated; carbon; sorbents; degrading; compounds; sufficient pressure; chemical properties; /210/

Citation Formats

Hawthorne, Steven B, Miller, David J, Lagadec, Arnaud Jean-Marie, Hammond, Peter James, and Clifford, Anthony Alan. Method of manipulating the chemical properties of water to improve the effectiveness of a desired process. United States: N. p., 2002. Web.
Hawthorne, Steven B, Miller, David J, Lagadec, Arnaud Jean-Marie, Hammond, Peter James, & Clifford, Anthony Alan. Method of manipulating the chemical properties of water to improve the effectiveness of a desired process. United States.
Hawthorne, Steven B, Miller, David J, Lagadec, Arnaud Jean-Marie, Hammond, Peter James, and Clifford, Anthony Alan. Tue . "Method of manipulating the chemical properties of water to improve the effectiveness of a desired process". United States. https://www.osti.gov/servlets/purl/874261.
@article{osti_874261,
title = {Method of manipulating the chemical properties of water to improve the effectiveness of a desired process},
author = {Hawthorne, Steven B and Miller, David J and Lagadec, Arnaud Jean-Marie and Hammond, Peter James and Clifford, Anthony Alan},
abstractNote = {The method of the present invention is adapted to manipulate the chemical properties of water in order to improve the effectiveness of a desired process. The method involves heating the water in the vessel to subcritical temperatures between 100.degree. to 374.degree. C. while maintaining sufficient pressure to the water to maintain the water in the liquid state. Various physiochemical properties of the water can be manipulated including polarity, solute solubility, surface tension, viscosity, and the disassociation constant. The method of the present invention has various uses including extracting organics from solids and semisolids such as soil, selectively extracting desired organics from liquids, selectively separating organics using sorbent phases, enhancing reactions by controlling the disassociation constant of water, cleaning waste water, removing organics from water using activated carbon or other suitable sorbents, and degrading various compounds.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

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Works referenced in this record:

Hydrothermal reactions of 1-nitrobutane in high-temperature water
journal, March 1996


The influence of high-temperature water on the reaction pathways of nitroanilines
journal, September 1995


Organic synthesis in subcritical water
journal, July 1998


Reductive Dechlorination of Polychlorinated Biphenyls by Zerovalent Iron in Subcritical Water
journal, April 1999


Chemical reactions and phase equilibria of model halocarbons and salts in sub- and supercritical water (200–300 bar, 100–600°C)
journal, June 1998