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Precipitation of calcium salts of surfactants
Faraday Discussions of the Chemical Society, 1976The precipitation of calcium laurate from solution has been studied using a stopped-flow spectrophotometric technique. From measurements of turbidity at two different wavelengths, particle radii and number concentration were calculated using Rayleigh-Debye theory, the results being checked by electron microscopy and laser counting.
David E. Clarke +2 more
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Purification of diverse hemoglobins by metal salt precipitation
Protein Expression and Purification, 2016Although donated blood is the preferred material for transfusion, its limited availability and stringent storage requirements have motivated the development of blood substitutes. The giant extracellular hemoglobin (aka erythrocruorin) of the earthworm Lumbricus terrestris (LtEc) has shown promise as a blood substitute, but an efficient purification ...
Devon Zimmerman +3 more
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Initial protein concentration effects on precipitation by salt
Biotechnology and Bioengineering, 1997The influence of initial protein concentration on the performance of salting-out precipitation is examined. In the precipitation of bovine albumin by ammonium sulfate, a peak occurs in the plot of protein solubility versus initial protein concentration; that is, the solubility first increases and then falls with increasing initial protein concentration.
K S, Shiau, T L, Chen
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Precipitation of oppositely charged polyelectrolytes in salt solutions
The Journal of Chemical Physics, 2004We study phase separation in symmetric solutions of weakly charged flexible chains of opposite sign. Precipitation is caused by effective attractions due to charge fluctuations and by short-range attractions between monomers. The contribution from charge fluctuations is computed within the random phase approximation (RPA), which takes into account the ...
Alexander, Kudlay +1 more
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Multiphase equilibrium flash with salt precipitation in systems with multiple salts
Chemical Engineering Research and Design, 2015Abstract A new methodology for determining simultaneous chemical and phase equilibrium of mixtures of light gases and aqueous electrolyte solutions with the potential for multiple salt deposition is proposed. The novel aspects of this new approach include, but are not limited to (1) a novel tearing algorithm for determining equilibrium ion solubility
Lucia, Angelo +2 more
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The Precipitation of Salt in Gas Producing Wells
SPE European Formation Damage Conference, 2001Abstract The entrainment of reservoir water from gas reservoirs and the associated precipitation of dissolved salts in the late production stage can impair the productivity and may even result in the abandonment of wells, even in reservoirs without active edge water drive. The causes of precipitation of dissolved salts from the entrained
W. Kleinitz, M. Koehler, G. Dietzsch
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Recovery of Cellulase by HPMC-Salt Precipitation
1999Production of industrial enzymes including cellulases requires minimum cost with the down stream processing. The objective of this work was toanalyze the precipitation of cellulases by ammonium sulfate in the presence of hydroxypropyl(methylcellulose) as a co-precipitant through the use of statistical experimental design.
Sebastião Avelino +4 more
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