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), Vol. 12:4; ISSN 0736-6299
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
FRUCTOSE
EXTRACTION
GLYCEROL
SORBITOL
ALCOHOLS
AQUEOUS SOLUTIONS
COMPILED DATA
COMPLEXES
ENERGY CONSERVATION
ENTHALPY
ENTROPY
ION PAIRS
ORGANIC BORON COMPOUNDS
SODIUM HYDROXIDES
ALKALI METAL COMPOUNDS
CARBOHYDRATES
DATA
DISPERSIONS
DIURETICS
DRUGS
HEXOSES
HYDROGEN COMPOUNDS
HYDROXIDES
HYDROXY COMPOUNDS
INFORMATION
KETONES
MIXTURES
MONOSACCHARIDES
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SACCHARIDES
SEPARATION PROCESSES
SODIUM COMPOUNDS
SOLUTIONS
THERMODYNAMIC PROPERTIES
400105* - Separation Procedures
400201 - Chemical & Physicochemical Properties
320303 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Equipment & Processes