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Modeling and predictions of solids dynamic holdup in gas-flowing solids-fixed bed contactors
(Amer Chemical Soc, Washington, 2004)
A model based on first principles and free of any semiempirical parameters is presented for trickling solids holdup in gas-flowing solids-fixed bed contactors. A small double-cone cavity is used to characterize the voids ...
Water plus esters plus methanol: experimental data, correlation and prediction of surface and interfacial tensions at 303.15 K and atmospheric pressure
(Elsevier, Amsterdam, 2004)
For the ternary system water + ethyl propionate + methanol, and the constituent binaries, the surface tension at 303.15 K and atmospheric pressure was measured over the whole miscible composition range. The liquid interfacial ...
Photoacoustic study of CO2-laser coincidences with absorption of some organic solvent vapours
(Elsevier, Amsterdam, 2004)
Detection of specific molecules in the atmosphere is motivated by the need for monitoring the emission of industrial pollutants. CO2-laser photoacoustic (PA) spectroscopy was used here to obtain coincidence spectra of the ...
Protective properties of epoxy coatings electrodeposited on steel electrochemically modified by Zn-Ni alloys
(Elsevier Science Sa, Lausanne, 2004)
A review is given on Zn-Ni alloys electrochemically deposited on steel under various deposition conditions. The influence of deposition current density and type of deposition solution on the chemical content, phase structure ...
Pertraction of phenol in hollow-fiber membrane contactors
(Elsevier, Amsterdam, 2004)
In this paper the multistage membrane pertraction (simultaneous extraction and reextraction) of phenol with linear monoalkyl cyclohexane (IMACH) as a carrier and sodium hydroxide solution as a strip, in laboratory scaled ...
Optical fibers with composite magnetic coating for magnetic field sensing
(Elsevier Science Bv, Amsterdam, 2004)
The investigated system for optical fiber sensor was multi-mode optical fiber with magnetic composite coating. Polymer component of composite coating was poly (ethylene-co-vinyl acetate)-EVA, and the magnetic component was ...
Principal component analysis of trace elements in industrial soils
(Springer Heidelberg, Heidelberg, 2004)
The concentrations of the elements Cr, Pb, Cd, Zn, Ni, Mn, Cu and As in soil samples from industrial areas in Serbia were studied. The complexity of the data of eight elements in fifty-nine soil samples was reduced by ...
Synthesis and characterization of complexes between poly(itaconic acid) and poly(ethylene glycol)
(Springer, New York, 2004)
Interpolymer complexes of poly(itaconic acid) and poly(ethylene glycol) (PIA/PEG) were prepared by two different procedures: simple mixing of preformed PIA and PEG and by polymerization of itaconic acid on poly(ethylene ...
Metal sorption on macroporous poly(GMA-co-EGDMA) modified with ethylene diamine
(Elsevier Science Bv, Amsterdam, 2004)
Two samples of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate), poly(GMA-co-EGDMA), with different porosity parameters were synthesized by suspension copolymerization and modified by ...
Operating regime of a biphasic oil/aqueous hollow-fibre reactor with immobilized lipase for oil hydrolysis
(Elsevier Sci Ltd, Oxford, 2004)
Lipase from Candida rugosa was immobilized on Cuprophane membrane in a hollow-fibre module for possible application for oil hydrolysis. A simple immobilization technique was applied and 154.8 mg m(-2) lipase was immobilized ...