This paper deals with propionic acid extraction by Aliquat 336, a quaternary amine dissolved in ndodecane and 1-decanol. Chemical equilibrium experiments have been carried out to investigate the effect of modifier, 1-decanol on the extraction efficiency of Aliquat 336 in ndodecane at fixed initial acid concentration of 0.27 gmol/l. Extraction efficiency is determined in terms of distribution co...

The stability of an emulsified liquid membrane composed of Span80 as a surfactant, D2EHPA as an extractant and sulfuric acid as an internal phase was first studied according to different diluents and many operating parameters using the Plackett-Burman design of experiments. Then the removal of methylene blue from an aqueous solution has been carried out using this emulsified liquid membrane at ...

The fungus, Trichoderma reesei NCIM 1052 was used for the production of extra cellular amylase on agricultural residues viz. Soy cake, Wheat bran, Rice bran and Ragi (Eleusine corocana Gaertn.) in solid state fermentation (SSF). Maximum enzyme activity (324.45 IU g-1) was obtained in a medium having Soy cake as the substrate, moisture level 1:1 (distilled water) and incubation for 72 hours with...

Abstract Soil testing laboratories across the United States have implemented Mehlich‐3 (M3) extraction method for phosphorus (P) and other nutrients. Though M3 is known to work well as a multinutrient extractant, it raises concerns measuring exchangeable cations, particularly in calcareous soils. The objectives of this study were (a) evaluate an extractant base cations Kansas soils, (b) identif...

In order to understand the mechanisms involved in the extraction processes developed to separate minor actinides, the “ligand/metallic cation” complexes formed in the organic phases are characterized by electrospray ionization-mass-spectrometry (ESI-MS). This paper deals with the application of the ESI-MS technique to analyze americium complexes in organic solutions. Two extractant systems are ...

An inductively coupled plasma atomic emission spectrometric method for the determination of trace amounts of cadmium after extraction of the metal into isobutyl methyl ketone containing 1,5-bis(di-2-pyridylmethylene) thiocarbonohydrazide is described. The optimum extraction conditions were evaluated from a critical study of the effects of pH, concentration of extractant, shaking time and ionic ...

High-purity In₂O₃ nanoparticles were recovered from scrap indium tin oxide substrates in a stepwise process involving acidic leaching, liquid-liquid extraction with a phosphine oxide extractant, and combustion of the organic phase. The morphological and structural parameters of the recovered nanoparticles were investigated to support the formation of the desired products. These In₂O₃ nanopartic...