Extraction of D-Tartaric Acid with Alamine 336/LIX 54 Mixture

1999 ◽  
Vol 64 (12) ◽  
pp. 2061-2072
Author(s):  
Ivo Mishonov ◽  
Jaroslav Procházka ◽  
Aleš Heyberger
Keyword(s):  
Mathematical Model ◽  
Aqueous Solution ◽  
Tartaric Acid ◽  
Tertiary Amine ◽  
Specific Effects ◽  
Alamine 336 ◽  
Amine Complex ◽  
Long Chain ◽  
Tartaric Acid Solution ◽  
Extraction Equilibria

Extraction equilibria in the system aqueous solution of D-tartaric acid-solution of tertiary amine in diluent at 25 °C have been studied. The amine was Alamine 336, a long-chain tertiary amine with C8-C10 alkyls in 2 : 1 ratio; the diluent was chelating extractant LIX 54, a solution of an alkyl β-diketone in kerosene. The experimental results were correlated using a mathematical model which takes into account chemical reactions involved in acid-amine complex formation and non-specific effects of the nonideality of the system.

Extraction of Tartaric Acid with Trialkylamine

1998 ◽  
Vol 63 (3) ◽  
pp. 305-320 ◽  
Author(s):  
Radmila Tomovska ◽  
Filimena Poposka ◽  
Eva Volaufová ◽  
Aleš Heyberger ◽  
Jaroslav Procházka
Keyword(s):  
Mathematical Model ◽  
Tartaric Acid ◽  
Methyl Isobutyl Ketone ◽  
Methyl Isobutyl ◽  
Isobutyl Ketone ◽  
Effect Of Solvent ◽  
Nonspecific Effects ◽  
Amine Complex ◽  
Tartaric Acid Solution ◽  
Extraction Equilibria

Extraction equilibria in the system aqueous solution of D-tartaric acid/solution of trialkylamine in binary diluent at 25 °C have been investigated. The amine used was a mixture of trialkylamines with C7-C9 alkyls, the diluent was a mixture hydrocarbon (n-heptane, kerosene) and a modifier (octan-1-ol, isodecanol, methyl isobutyl ketone). The effect of solvent composition on equilibrium was investigated and the experimental results were correlated using a mathematical model that takes into account chemical reactions involved in acid/amine complex formation, and the nonspecific effects of the nonideality of the system.

scholarly journals Bifurcation analysis of a mathematical model of atopic dermatitis to determine patient-specific effects of treatments on dynamic phenotypes

2018 ◽  
Vol 448 ◽  
pp. 66-79 ◽  
Author(s):  
Gouhei Tanaka ◽  
Elisa Domínguez-Hüttinger ◽  
Panayiotis Christodoulides ◽  
Kazuyuki Aihara ◽  
Reiko J. Tanaka
Keyword(s):  
Mathematical Model ◽  
Atopic Dermatitis ◽  
Bifurcation Analysis ◽  
Patient Specific ◽  
Specific Effects

Synthesis of ZnO Nanoparticles by Tartaric Acid Solution Combustion and Their Photocatalytic Properties

2020 ◽  
Vol 65 (7) ◽  
pp. 1102-1110
Author(s):  
Surisa Sa-nguanprang ◽  
Anukorn Phuruangrat ◽  
Titipun Thongtem ◽  
Somchai Thongtem
Keyword(s):  
Acid Solution ◽  
Tartaric Acid ◽  
Zno Nanoparticles ◽  
Photocatalytic Properties ◽  
Solution Combustion ◽  
Tartaric Acid Solution

Synthesis of “three-legged” tri-dentate podand ligands incorporating long-chain aliphatic moieties, for water remediators, and for isolating metal ions in non-aqueous solution

2018 ◽  
Vol 3 (11) ◽  
Author(s):  
Justin Pothoof ◽  
Michal Ruprecht ◽  
Ben D. Sliwinski ◽  
Ben M. Sosnowski ◽  
Polly R. Fitzgerald ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Metal Ions ◽  
Ambient Temperature ◽  
Water Remediation ◽  
Schiff’S Base ◽  
Aliphatic Aldehydes ◽  
Long Chain

Abstract Two molecules, each including tris-2-amino-ethyleneamine (tren), have been produced using a Schiff’s base condensation and long-chain, aliphatic aldehydes. The syntheses are straightforward and can be run in air at ambient temperature. The ability of these molecules to complex with metal ions makes them good candidates for water remediation. The ability of these ligands to hold metal ions in 0.03 M non-aqueous solutions was unexpected. Their syntheses and characterization are discussed.

pH-Regulated surface property and pH-reversible micelle transition of a tertiary amine-based gemini surfactant in aqueous solution

Soft Matter ◽  
2015 ◽  
Vol 11 (47) ◽  
pp. 9135-9143 ◽  
Author(s):  
Hongsheng Lu ◽  
Miao Xue ◽  
Baogang Wang ◽  
Zhiyu Huang
Keyword(s):  
Aqueous Solution ◽  
Tertiary Amine ◽  
Surface Property ◽  
Gemini Surfactant

scholarly journals CO2 Capture by Absorption in Activated Aqueous Solutions of N,N-Diethylethanoloamine

2017 ◽  
Vol 24 (2) ◽  
pp. 239-248 ◽  
Author(s):  
Ewelina Kruszczak ◽  
Hanna Kierzkowska-Pawlak
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Co2 Capture ◽  
Tertiary Amine ◽  
Absorption Rate ◽  
Absorption Process ◽  
Promising Technique ◽  
Gas Streams ◽  
Hindered Amines ◽  
Amine Solutions

Abstract The CO2 absorption process using aqueous amine solutions has been the most promising technique used for the removal of CO2 from gas streams in energy sector. In recent years, many researchers tested solutions which are composed of several compounds: a slow reacting tertiary amine- and a fast amine acting as an activator. In this paper, the CO2 absorption rate in an aqueous solution of N,N-diethylethanoloamine (DEEA) and activated solutions DEEA is investigated experimentally. The activators considered are sterically hindered amines: 2-amino-2-methyl-1-propanol (AMP), 2-amino-2-methyl-1,3-propanediol (AMPD) and N-methyl-1,3-propanediamine (MAPA) from the group of polyamines. The experiments were conducted over the temperature range of 303-333 K and the total amine concentration of 2 M. From the CO2 absorption experiments into mixed aqueous solutions of DEEA and MAPA, it was found that the addition of small amounts of MAPA into aqueous DEEA solutions has a significant effect on the enhancement of the CO2 absorption rate. The application of hindered amines: AMP or AMP as activators resulted in a marginally improvement of the absorption rate of CO2.

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