Ion-pair extraction of multi-OH compounds by complexation with organoboronate
- Lawrence Berkeley Lab., CA (United States) Univ. of California, Berkeley, CA (United States)
Ion-pair extraction with organoboronate has been investigated as a regenerable means of removal and recovery of multi -OH compounds from aqueous solution. The extractant utilized was 3-nitrophenylboronate (NPB[sup [minus]]), paired with Aliquat 336 as cation (A336[sup +]). The solubility of 3-nitrophenylboronic acid (NPBA) in water at 25[degree]C was measured as 0.45 [+-] 0.02 g/100 g H[sub 2]O. The 1:1 complexation stability constant for 1,2-propanediol with NPB[sup [minus]] was measured by the buffer-capacity method through the Antikainen model as 3.2, 2.3 and 1.95 mol/l[sup [minus]1] at 25[degree], 35[degrees] and 44.8[degree]C, respectively. The A336[sup +]NPB[sup [minus]] ion pair was prepared by repeated washing of a mixture of Aliquat 336, NPBA and diluent with aqueous NaOH and then water. Equilibria were measured for extraction of fructose, glycerol, and sorbitol from aqueous solution into the ion-pair extractant in a diluent of 2-ethylhexanol. 21 refs., 4 figs., 3 tabs.
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 6915240
- Journal Information:
- Solvent Extraction and Ion Exchange; (United States), Journal Name: Solvent Extraction and Ion Exchange; (United States) Vol. 12:4; ISSN 0736-6299; ISSN SEIEDB
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
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400201 -- Chemical & Physicochemical Properties
ALCOHOLS
ALKALI METAL COMPOUNDS
AQUEOUS SOLUTIONS
CARBOHYDRATES
COMPILED DATA
COMPLEXES
DATA
DISPERSIONS
DIURETICS
DRUGS
ENERGY CONSERVATION
ENTHALPY
ENTROPY
EXTRACTION
FRUCTOSE
GLYCEROL
HEXOSES
HYDROGEN COMPOUNDS
HYDROXIDES
HYDROXY COMPOUNDS
INFORMATION
ION PAIRS
KETONES
MIXTURES
MONOSACCHARIDES
NUMERICAL DATA
ORGANIC BORON COMPOUNDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SACCHARIDES
SEPARATION PROCESSES
SODIUM COMPOUNDS
SODIUM HYDROXIDES
SOLUTIONS
SORBITOL
THERMODYNAMIC PROPERTIES