DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Self-regenerating column chromatography

Abstract

The present invention provides a process for treating both cations and anions by using a self-regenerating, multi-ionic exchange resin column system which requires no separate regeneration steps. The process involves alternating ion-exchange chromatography for cations and anions in a multi-ionic exchange column packed with a mixture of cation and anion exchange resins. The multi-ionic mixed-charge resin column works as a multi-function column, capable of independently processing either cationic or anionic exchange, or simultaneously processing both cationic and anionic exchanges. The major advantage offered by the alternating multi-function ion exchange process is the self-regeneration of the resins.

Inventors:
 [1]
  1. Centerville, OH
Issue Date:
Research Org.:
Monsanto Research Corporation
Sponsoring Org.:
USDOE
OSTI Identifier:
869902
Patent Number(s):
5419819
Application Number:
08/214,261
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AC04-76DP00053
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
self-regenerating; column; chromatography; provides; process; treating; cations; anions; multi-ionic; exchange; resin; requires; separate; regeneration; steps; involves; alternating; ion-exchange; packed; mixture; cation; anion; resins; mixed-charge; multi-function; capable; independently; processing; cationic; anionic; simultaneously; exchanges; major; advantage; offered; self-regeneration; exchange column; anion exchange; process involves; exchange resin; exchange resins; column chromatography; exchange process; exchange chromatography; regeneration step; /204/376/

Citation Formats

Park, Woo K. Self-regenerating column chromatography. United States: N. p., 1995. Web.
Park, Woo K. Self-regenerating column chromatography. United States.
Park, Woo K. Tue . "Self-regenerating column chromatography". United States. https://www.osti.gov/servlets/purl/869902.
@article{osti_869902,
title = {Self-regenerating column chromatography},
author = {Park, Woo K},
abstractNote = {The present invention provides a process for treating both cations and anions by using a self-regenerating, multi-ionic exchange resin column system which requires no separate regeneration steps. The process involves alternating ion-exchange chromatography for cations and anions in a multi-ionic exchange column packed with a mixture of cation and anion exchange resins. The multi-ionic mixed-charge resin column works as a multi-function column, capable of independently processing either cationic or anionic exchange, or simultaneously processing both cationic and anionic exchanges. The major advantage offered by the alternating multi-function ion exchange process is the self-regeneration of the resins.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {5}
}

Works referenced in this record:

Fractionation of Strontium Isotopes in Cation-Exchange Chromatography
journal, April 1992


Displacement Band Chromatography of Hydrogen Sulfites for Enrichment of Sulfur Isotopes
journal, January 1993


Separation of Nitrogen Isotopes by Displacement Band Chromatography
journal, October 1988


Magnesium Isotope Fractionation in Cation-Exchange Chromatography
journal, November 1987


Anion—cation separations on a mixed bed alumina—silica column
journal, January 1989


Calcium Hydroxide Isotope Effect in Calcium Isotope Enrichment by Ion Exchange
journal, February 1984


The Effects of Operating Parameters on Nitrogen Isotopes Separation by Displacement Band Chromatography
journal, October 1990


A Laboratory Method for Separating Nitrogen Isotopes by Ion Exchange 1
journal, December 1955