Results 331 to 340 of about 670,141 (365)
Some of the next articles are maybe not open access.
Journal of Inorganic and Nuclear Chemistry, 1968
Abstract Lithium was quantitatively and selectively extracted from aqueous solutions of alkali metal salts by forming a suitable adduct of a lithium chelate. Thus, the trioctylphosphine oxide (TOPO) adduct of lithium dibenzoylmethane (LiDBM) was readily extracted into dodecane or p-xylene.
J.S. Drury +3 more
openaire +2 more sources
Abstract Lithium was quantitatively and selectively extracted from aqueous solutions of alkali metal salts by forming a suitable adduct of a lithium chelate. Thus, the trioctylphosphine oxide (TOPO) adduct of lithium dibenzoylmethane (LiDBM) was readily extracted into dodecane or p-xylene.
J.S. Drury +3 more
openaire +2 more sources
Accelerated Solvent Extraction
2004Extraction of solid and semisolid samples using liquid solvents is a common practice in nearly every analytical laboratory. Years of empirical testing have resulted in rugged and reproducible methodologies for a wide range of analyte classes. However, recent concerns regarding the volumes of organic solvents used (with the associated human exposure ...
Devanand L. Luthria +3 more
openaire +2 more sources
Solvent extraction of halogens
Fresenius' Zeitschrift für analytische Chemie, 1978The solubility formula previously proposed was applied to the partition of halogens between water and some typical organic solvents, and the character of parameter θ in the formula was examined. The formula reproduces the experimental data of the solvent extraction of halogens reasonably.
Kiyoteru Otozai, Itiro Tohyama
openaire +2 more sources
Hyperbranched polymers: new selective solvents for extractive distillation and solvent extraction
Separation and Purification Technology, 2002Abstract Ternary vapor–liquid (VLE), liquid–liquid (LLE) and solid–liquid–liquid (SLLE) equilibria of ethanol–water and tetrahydrofuran (THF)–water solutions containing different kinds of hyperbranched polymers are presented. For the system THF–water-hyperbranched polyester a remarkably distinct solutropic phenomenon is observed.
D. Köhler, M. Seiler, Wolfgang Arlt
openaire +2 more sources
1996
Extraction is the removal of a soluble constituent from one liquid into another. Liquid-liquid extraction is a unit operation frequently employed for recovery and purification of a desired component from solution, including product recovery from fermentation broths.
openaire +3 more sources
Extraction is the removal of a soluble constituent from one liquid into another. Liquid-liquid extraction is a unit operation frequently employed for recovery and purification of a desired component from solution, including product recovery from fermentation broths.
openaire +3 more sources
2011
Publisher Summary This chapter describes solvent extraction (SX) that purifies and upgrades the pregnant leach solution (PLS) produced by the leaching operation to generate an electrolyte. It is a crucial step in producing high purity electrowon copper from leached ores.
Mark E. Schlesinger +3 more
openaire +2 more sources
Publisher Summary This chapter describes solvent extraction (SX) that purifies and upgrades the pregnant leach solution (PLS) produced by the leaching operation to generate an electrolyte. It is a crucial step in producing high purity electrowon copper from leached ores.
Mark E. Schlesinger +3 more
openaire +2 more sources
Solvent Extraction of Xenon [PDF]
Nature, 1965 SOLVENT extraction of xenon has never been reported. Two years ago, one of us (R. K.) noticed that caesium-138 (half-life 32.2 min) was extracted in di-isobutylketon (DIBK) when he was carrying out a rapid solvent extraction separation of short-lived selenium activities from uranium fission products1. The caesium-138 activity did not appear in the DIBK
Rokuro Kuroda +3 more
openaire +1 more source
Solvent Extraction in Hydrometallurgy
2004The use of solvent extraction as a unit operation in hydrometallurgy now extends to a wide range of metals from a variety of feed materials including low-grade ores, scrap and waste, and dilute aqueous solutions. The technology was pioneered in the 1940s for the extraction of uranium from its ores and, later, for the treatment of wastes from spent ...
openaire +2 more sources
2019
Solvent extraction does not destroy hazardous contaminants, but is a means of separating those contaminants from soils, sludges, and sediments, thereby reducing the volume of the hazardous material that must be treated. Generally it is used as one in a series of unit operations, and can reduce the overall cost for managing a particular site.
Jim Rawe, George Wahl
openaire +2 more sources
Solvent extraction does not destroy hazardous contaminants, but is a means of separating those contaminants from soils, sludges, and sediments, thereby reducing the volume of the hazardous material that must be treated. Generally it is used as one in a series of unit operations, and can reduce the overall cost for managing a particular site.
Jim Rawe, George Wahl
openaire +2 more sources
Solvent extraction of penicillin
Journal of the Society of Chemical Industry, 1946AbstractThe extraction method for the purification and concentration of penicillin is reviewed. The theoretical basis underlying the extraction process is examined. A simple distribution formula reproduces the results well and in used to examine the dependence of the selectivity of a solvent on pH of extraction.
H Steiner, E. Zimmen, D. Rowley
openaire +2 more sources