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Title: The use of basic polymer sorbents for the recovery of acetic acid from dilute aqueous solution

Abstract

Measurements were made of preferential uptakes of acetic acid from aqueous solution onto basic polymer sorbents. Individual uptakes of water and acetic acid were measured as well. The sorption equilibria were interpreted through a chemical complexation model yielding sorption affinities and capacities for acetic acid. Basicity scales, such as pKa and Gutmann Donor Number (DN) based upon the monomeric functional group chemistry, were shown to explain the trends in sorption affinities. The use of different solvents to leach sorbed acetic acid from basic polymer sorbents was investigated as a means of regenerating the sorbents. It was found that regeneration can be improved by using solvents of high donicity. Aqueous ammonia proved to be effective for regenerating moderately strong base sorbents. 83 refs., 51 figs., 11 tabs.

Authors:
;
Publication Date:
Research Org.:
Lawrence Berkeley Lab., CA (USA)
OSTI Identifier:
7200500
Report Number(s):
LBL-24543
ON: DE88008392
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ACETIC ACID; ABSORPTION; RECOVERY; AMMONIA; SOLVENT PROPERTIES; METHANOL; POLYMERS; SORPTIVE PROPERTIES; RESINS; AFFINITY; AQUEOUS SOLUTIONS; ION EXCHANGE; ISOTHERMS; LEACHING; MOLECULAR STRUCTURE; ORGANIC NITROGEN COMPOUNDS; PH VALUE; POLYVINYLS; REACTION KINETICS; SOLVENTS; ALCOHOLS; CARBOXYLIC ACIDS; DISPERSIONS; DISSOLUTION; HYDRIDES; HYDROGEN COMPOUNDS; HYDROXY COMPOUNDS; KINETICS; MIXTURES; MONOCARBOXYLIC ACIDS; NITROGEN COMPOUNDS; NITROGEN HYDRIDES; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; PETROCHEMICALS; PETROLEUM PRODUCTS; SEPARATION PROCESSES; SOLUTIONS; SURFACE PROPERTIES; 400201* - Chemical & Physicochemical Properties; 400105 - Separation Procedures

Citation Formats

Garcia, A.A., and King, C.J. The use of basic polymer sorbents for the recovery of acetic acid from dilute aqueous solution. United States: N. p., 1988. Web.
Garcia, A.A., & King, C.J. The use of basic polymer sorbents for the recovery of acetic acid from dilute aqueous solution. United States.
Garcia, A.A., and King, C.J. Fri . "The use of basic polymer sorbents for the recovery of acetic acid from dilute aqueous solution". United States.
@article{osti_7200500,
title = {The use of basic polymer sorbents for the recovery of acetic acid from dilute aqueous solution},
author = {Garcia, A.A. and King, C.J.},
abstractNote = {Measurements were made of preferential uptakes of acetic acid from aqueous solution onto basic polymer sorbents. Individual uptakes of water and acetic acid were measured as well. The sorption equilibria were interpreted through a chemical complexation model yielding sorption affinities and capacities for acetic acid. Basicity scales, such as pKa and Gutmann Donor Number (DN) based upon the monomeric functional group chemistry, were shown to explain the trends in sorption affinities. The use of different solvents to leach sorbed acetic acid from basic polymer sorbents was investigated as a means of regenerating the sorbents. It was found that regeneration can be improved by using solvents of high donicity. Aqueous ammonia proved to be effective for regenerating moderately strong base sorbents. 83 refs., 51 figs., 11 tabs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {1}
}

Technical Report:
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