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Title: Sorption of carboxylic acid from carboxylic salt solutions at pHs close to or above the pK[sub a] of the acid, with regeneration with an aqueous solution of ammonia or low-molecular-weight alkylamine

Abstract

Carboxylic acids are sorbed from aqueous feedstocks at pHs close to or above the acids' pH[sub a] into a strongly basic organic liquid phase or onto a basic solid adsorbent or moderately basic ion exchange resin. The acids are freed from the sorbent phase by treating it with aqueous alkylamine or ammonia thus forming an alkylammonium or ammonium carboxylate which dewatered and decomposed to the desired carboxylic acid and the alkylamine or ammonia. 8 figs.

Inventors:
;
Publication Date:
OSTI Identifier:
7233112
Patent Number(s):
US 5132456; A
Application Number:
PPN: US 7-697315
Assignee:
Univ. of California, Oakland, CA (United States) PTO; EDB-94-089522
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Patent
Resource Relation:
Patent File Date: 7 May 1991
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; CARBOXYLIC ACIDS; ADSORPTION; CHEMICAL INDUSTRY; DESORPTION; ENERGY CONSERVATION; PH VALUE; REGENERATION; SYNTHESIS; INDUSTRY; ORGANIC ACIDS; ORGANIC COMPOUNDS; SORPTION; 400201* - Chemical & Physicochemical Properties; 320303 - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Equipment & Processes

Citation Formats

King, C.J., and Tung, L.A. Sorption of carboxylic acid from carboxylic salt solutions at pHs close to or above the pK[sub a] of the acid, with regeneration with an aqueous solution of ammonia or low-molecular-weight alkylamine. United States: N. p., 1992. Web.
King, C.J., & Tung, L.A. Sorption of carboxylic acid from carboxylic salt solutions at pHs close to or above the pK[sub a] of the acid, with regeneration with an aqueous solution of ammonia or low-molecular-weight alkylamine. United States.
King, C.J., and Tung, L.A. Tue . "Sorption of carboxylic acid from carboxylic salt solutions at pHs close to or above the pK[sub a] of the acid, with regeneration with an aqueous solution of ammonia or low-molecular-weight alkylamine". United States.
@article{osti_7233112,
title = {Sorption of carboxylic acid from carboxylic salt solutions at pHs close to or above the pK[sub a] of the acid, with regeneration with an aqueous solution of ammonia or low-molecular-weight alkylamine},
author = {King, C.J. and Tung, L.A.},
abstractNote = {Carboxylic acids are sorbed from aqueous feedstocks at pHs close to or above the acids' pH[sub a] into a strongly basic organic liquid phase or onto a basic solid adsorbent or moderately basic ion exchange resin. The acids are freed from the sorbent phase by treating it with aqueous alkylamine or ammonia thus forming an alkylammonium or ammonium carboxylate which dewatered and decomposed to the desired carboxylic acid and the alkylamine or ammonia. 8 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {7}
}