scholarly journals Reactive Extraction of Tartaric Acid

2009 ◽  
Vol 4 (2) ◽  
pp. 28-33
Author(s):  
Natalia Marchitan
Keyword(s):  
Acid Solution ◽  
Tartaric Acid ◽  
Secondary Amine ◽  
Separation Process ◽  
Model Systems ◽  
Reactive Extraction ◽  
Acid Extraction ◽  
Stirring Time ◽  
Tartaric Acid Solution

The present paper describes the results of reactive extraction of tartaric acid in model systems, which can be used for its separation from secondary wine products. As extractant have been used a normal/isododecyl mixed secondary amine Amberlite LA-2. The following parameters of the separation process have been varied: nature of diluent and modifier; modifier concentration; concentration, temperature and pH of the tartaric acid solution and the stirring time, and the work intervals have been established. It was concluded that in determinated conditions the extent of tartaric acid extraction attains value 85-95%.

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

Electrodeposition of Copper Selenide onto Mo Electrode in Tartaric Acid Solution

2018 ◽  
Vol 91 (5) ◽  
pp. 778-784
Author(s):  
M. B. Dergacheva ◽  
A. E. Nurtazina ◽  
K. A. Urazov ◽  
N. N. Gudeleva ◽  
V. I. Yaskevich ◽  
...  
Keyword(s):  
Acid Solution ◽  
Tartaric Acid ◽  
Copper Selenide ◽  
Tartaric Acid Solution

Fluorometric Determination of Methylergonovine Maleate and Ergonovine Maleate in Tablets and Injections

1978 ◽  
Vol 61 (6) ◽  
pp. 1433-1434 ◽  
Author(s):  
Ross D Kirchhoefer
Keyword(s):  
Acid Solution ◽  
Tartaric Acid ◽  
Fluorometric Determination ◽  
Sodium Tartrate ◽  
Tartaric Acid Solution

Abstract A column cleanup, followed by a shakeout and fluorometric determination, has been developed to determine methylergonovine maleate and ergonovine maleate in tablets and injections. The ether eluate is extracted with tartaric acid solution. An aliquot is diluted with sodium tartrate solution, and this solution is excited at 325 nm. The resulting fluorescence is measured at 432 nm. Results obtained using this method compare favorably with those from the official NF XIV procedure and a semiautomated procedure. Recoveries of 100 and 99% were obtained from one sample each of spiked excipient tablets of methylergonovine maleate and ergonovine maleate, respectively.

Ptomaïnes extracted from Urine in certain Infectious Diseases

1893 ◽  
Vol 19 ◽  
pp. 97-101
Author(s):  
A. B. Griffiths
Keyword(s):  
Infectious Diseases ◽  
Acid Solution ◽  
Calcium Hydroxide ◽  
Tartaric Acid ◽  
Sulphuric Acid ◽  
Sodium Carbonate ◽  
Lower Layer ◽  
Water Bath ◽  
Ethereal Solution ◽  
Tartaric Acid Solution

The author has extracted ptomaïnes from the urine of patients suffering from certain infectious diseases by the following method :— (a) A considerable quantity of urine was made alkaline by the addition of a solution of sodium carbonate, and then agitated with half its volume of ether, (b) The ethereal solution (after standing) was filtered, and agitated with a solution of tartaric acid. The tartaric acid combines with any ptomaïnes present, forming soluble tartrates ; and the solution of tartrates forms the lower layer of the liquid mass, (c) The tartaric acid solution (after being separated from the ether) was also made alkaline by the addition of sodium carbonate, and was once more agitated with half its volume of ether. (d) The ethereal solution (after standing) was separated, and the ether allowed to evaporate spontaneously, (e) The residue (after drying over sulphuric acid) was treated with water, an excess of pure calcium hydroxide added, and the mixture evaporated on a water-bath. The residue so obtained was treated with chloroform and filtered. The filtrate (after evaporation) yielded the ptomaïne in an isolated and a crystalline condition.

Structural and fluorescence characterization of anodic alumina/carbon composites formed in tartaric acid solution

2017 ◽  
Vol 182 ◽  
pp. 233-239 ◽  
Author(s):  
Katsiaryna Chernyakova ◽  
Renata Karpicz ◽  
Sergey Zavadski ◽  
Olga Poklonskaya ◽  
Arunas Jagminas ◽  
...  
Keyword(s):  
Acid Solution ◽  
Tartaric Acid ◽  
Anodic Alumina ◽  
Carbon Composites ◽  
Tartaric Acid Solution

scholarly journals Reactive Extraction of L (+) Tartaric Acid by Amberlite LA-2 in Different Solvents

2011 ◽  
Vol 8 (s1) ◽  
pp. S509-S515 ◽  
Author(s):  
I. Inci ◽  
Y. S. Asçi ◽  
A. F. Tuyun
Keyword(s):  
Tartaric Acid ◽  
Extraction Efficiency ◽  
Methyl Isobutyl Ketone ◽  
Distribution Coefficients ◽  
Reactive Extraction ◽  
Methyl Isobutyl ◽  
Isobutyl Ketone ◽  
Initial Concentration ◽  
Maximum Removal ◽  
Extraction Equilibria

The extraction of L(+) tartaric acid from aqueous solutions by amberlite LA-2 is a secondary amine mixture in different diluent solvents. Extraction equilibria of L(+) tartaric acid by amberlite LA-2 in 1-octanol, cyclohexane, isooctane, hexane, methyl isobutyl ketone (MIBK) solvents at temperature 298.15 K have been measured. The batch extraction experiments distribution coefficients (D), loading factors (Z) and extraction efficiency (E) were calculated. The maximum removal of L(+) tartaric acid is 91 % with MIBK and 0.92 mol.L-1initial concentration of Amberlite LA-2.

Equilibrium and Kinetics of Reactive Extraction of Propionic Acid Using Aliquat 336 and Tri-n-Butyl Phosphate in n-Hexanol

2009 ◽  
Vol 7 (1) ◽  
Author(s):  
Dr. Kailas L. Wasewar ◽  
Amit Keshav ◽  
Shri Chand
Keyword(s):  
Propionic Acid ◽  
Acid Concentration ◽  
Fermentation Broth ◽  
Reactive Extraction ◽  
Acid Extraction ◽  
Aliquat 336 ◽  
Pseudo First Order Reaction ◽  
First Order ◽  
Pharmaceutical Industries ◽  
Kinetics Of

Recovery of propionic acid from different sources, like aqueous streams or from fermentation broth, is important in view of its wide usage in food, chemical and pharmaceutical industries. Reactive extraction is an emerging separation technique having numerous advantages like high selectivity and recovery. Effect of acid concentration, extractant concentration, pH, temperature and kinetics are the important steps in the reactive extraction. Equilibrium of propionic acid extraction using tri-n-butyl phosphate (TBP) and Aliquat 336 in n-hexanol respectively was carried out to find the better extractant out of the two for extraction of propionic acid. Aliquat 336 was found to be better than TBP with Ks = 2.2119 m3/kmol, thus indicating good complexation between it and the acid. The kinetics of extraction of the acid using Aliquat 336 in a stirred cell was investigated. The reaction was found to be first order in acid concentration and zero order in Aliquat 336 concentration. The reaction was found to be fast pseudo first order reaction occurring in the diffusion film and was found to be independent of hydrodynamics conditions. Rate constant was evaluated to be 163.398 1/s.

Leaching of Pewterware by Organic Acids

1977 ◽  
Vol 60 (6) ◽  
pp. 1408-1413
Author(s):  
John H Gould
Keyword(s):  
Organic Acids ◽  
Tartaric Acid ◽  
Atomic Absorption Spectrophotometry ◽  
Leach Solution ◽  
The Other ◽  
Acid Solutions ◽  
Absorption Spectrophotometry ◽  
Acid Leach ◽  
Mineral Acids ◽  
Tartaric Acid Solution

Abstract Three pewter goblets were repeatedly leached by acetic, citric, lactic, malonic, and tartaric acid solutions. The leach solutions were periodically analyzed for Pb, Cd, Cu, Bi, Sb, and Sn by atomic absorption spectrophotometry. Analysis of the leach solutions showed that, without the addition of nitric or perchloric acid to the acetic and malonic acid leach solutions, Pb precipitated from the solutions on standing. Addition of the mineral acids redissolved the precipitate. Pb, Cd, and Bi were found in higher concentrations in the leach solution than in the metal; Cu and Sb were less concentrated in the leach, while the amount of Sn was approximately equal in both. Tartaric acid solution dissolved about 9 times as much metal from the pewter as the other organic acids but removed less Pb than acetic or malonic acids. None of these samples tested exceeded the Food and Drug Administration standards for Pb or Cd release.

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