Extraction of chromium(VI) from acid solutions by tri-iso-octylamine.
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چکیده
منابع مشابه
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 ...
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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...
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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...
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In this study, the separation of formic acid from aqueous solutions was investigated. Liquid-liquid equilibrium (LLE) data including tie-lines was reported for water + formic acid + 2-methylpropyl ethanoate ternary mixture at (293.15 to 323.15) K and atmospheric pressure. The system shows type-I phase behavior based on Treybal’s classification because only one partially miscible binary mixture ...
متن کاملPlatinum Extraction Modeling from Used Catalyst by Iodine Solutions
Platinum extraction from spent reforming catalysts in iodine solutions under atmospheric pressure at different temperatures, acid concentration, and iodine spices concentration, catalyst particle size, and impeller agitation speed have been studied in our group. In this system, platinum is oxidized from spent catalyst with I3¯ that is formed ...
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ژورنال
عنوان ژورنال: JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
سال: 1991
ISSN: 0021-9592,1881-1299
DOI: 10.1252/jcej.24.149