Now showing items 21-30 of 248
Dissolution kinetics: Catalysis by salts
(Elsevier, 1981-07)
The dissolution of silicate minerals by hydrofluoric acid has been found to be catalyzed by salts such as NH4Cl, NaCl, and LiCl as well as by strong acids. This catalysis is a strong function of pH and is attributed to the ...
Lubrication theory for n-layer thin-film flow with applications to multilayer extrusion and coating
(Elsevier, 1990)
Two-dimensional, n-layer isothermal flows of Newtonian liquids are analyzed by means of the Reynolds lubrication approximation (Phil. Trans. R. Soc. 177, 157, 1886). For algebraic simplicity, the coordinates are transformed ...
New sorbents for desulfurization of diesel fuels via Π-complexation
(Wiley Subscription Services, Inc., A Wiley Company, 2004-04)
Desulfurization of a commercial diesel fuel by different adsorbents was studied in a fixed-bed adsorber operated at ambient temperature and pressure. In general, the adsorbents tested for total sulfur adsorption capacity ...
Influence of transport and reaction on wormhole formation in porous media
(Wiley Subscription Services, Inc., A Wiley Company, 1998-09)
The transport and reaction of fluids in porous media results in unique pore growth and channel evolution as the media are dissolved. This often leads to the formation of highly conductive flow channels, commonly referred ...
Fabrication of conductometric gas-sensing films by selected area chemical-vapor deposition
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1997)
A new selected-area chemical-vapor deposition (CVD) process to fabricate thin sensing films on a micromachined silicon-based, conductometric gas-sensor structure is reported. The CVD method is self-lithographic and does ...
Reactions at supercritical conditions: Applications and fundamentals
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1995-07)
Supercritical fluids posses properties that make them attractive as media for chemical reactions. Conducting chemical reactions at supercritical conditions affords opportunities to manipulate the reaction environment ...
Acidization--II. The dissolution of calcite in hydrochloric acid
(Elsevier, 1975-08)
The dissolution of calcite in hydrochloric acid was studied with the aid of a rotating disk system at 800 psig in the temperature range -15[middle dot]6-25[deg]C. At 25[deg]C the dissolution process is mass transfer limited ...
Emulsion stability: Determination from turbidity
(Elsevier, 1981-01)
A novel technique for studying the stability of emulsions has been developed. Owing to the fact that emulsion turbidity is a function of particle concentration and size, the stability of emulsions can be determined by ...
Oxygen transport in biofilm electrodes for screening of toxic chemicals
(American Institute of Chemical EngineersWiley Periodiocals, Inc., 1990-01)
A biosensor electrode system with unique configuration and a thin layer of immobilized yeast cells, set on the surface of an amperometric oxygen membrane electrode, was developed for rapid screening of toxic chemicals in ...