Membrane Extraction of Chromium(VI) by Tri-n-Octylamine during Electrodialysis

Reactive Extraction of Nicotinic Acid with Tri-n-Octylamine (TOA) Dissolved in Different Diluents

The production of nicotinic acid and nicotinamide can be intensified by enzymatic conversion of 3-cyanopyridine. This fermentation process requires an economic and efficient separation method to compete with the synthetic process. In the present study, equilibrium data for the extraction of nicotinic acid using TOA dissolved in different diluents such as toluene and butyl acetate and n-dodecane...

Comparative Study on Pantothenic Acid Separation by Reactive Extraction with Tri-n-octylamine and Di-(2-ethylhexyl) Phosphoric Acid

Vitamin B5 was isolated from yeast in 1933, and a few years later from liver, by R.J. Williams. The main role of pantothenic acid in cells is the synthesis of coenzyme A, as well as the synthesis and metabolism of proteins, carbohydrates and fats. Regarding the human body, this compound is involved in the health of the digestive, nervous, circulatory, and skeletal systems, skin and hair, as wel...

The quantitative extraction of histamine from tissues by electrodialysis.

Studies on the Solvent Extraction of Iron (III) with Tri-iso-octylamine from Aqueous Mineral Acid Solutions

Liquid-Liquid extraction of iron (III) was carried out with 5.0X10-2 M of Tri iso-octylamine in benzene from hydrochloric, sulphuric, nitric and perchloric acid. After extraction from the organic phase, iron was stripped with 1M H2SO4 and was determined spectrophotometrically at 480nm as thiocyanate complex. The extraction was quantitative only in the presence of hydrochloric acid solution and ...

Equilibrium Study on Reactive Extraction of Acetic Acid with Tri-n-butyl Phosphate in N-hexane

Extraction of carboxylic acids from dilute aqueous solution using traditional solvents such as ketones, alcohols, ethers, and ester is inefficient because the distribution ratio is rather low. Reactive extraction which exploits reversible chemical complexation is an effective separation process for extraction of carboxylic acids from aqueous streams such as fermentation broths and wastewaters. ...