Evaluation of true zeta potential of the particles of a diaphragm, taking surface conductivity and phase volume ratio into account

1955 ◽  
Vol 42 (5) ◽  
pp. 121-121 ◽  
Author(s):  
B. N. Ghosh
Keyword(s):  
Zeta Potential ◽  
Volume Ratio ◽  
Surface Conductivity ◽  
Phase Volume ◽  
Phase Volume Ratio

scholarly journals Partitioning of cerrena unicolor laccase activity in an aqueous two-phase system

2016 ◽  
Vol 37 (2) ◽  
pp. 269-280 ◽  
Author(s):  
Michał Blatkiewicz ◽  
Axel Prinz ◽  
Andrzej Górak ◽  
Stanisław Ledakowicz
Keyword(s):  
Volume Ratio ◽  
Line Length ◽  
Bottom Phase ◽  
Phase System ◽  
Phase Volume ◽  
Two Phase ◽  
Aqueous Two Phase System ◽  
Phase Volume Ratio ◽  
Cerrena Unicolor ◽  
Tie Line

Abstract Culture supernatant containing laccase produced by Cerrena unicolor strain was used to examine laccase partitioning between phases in an aqueous two-phase system. The investigated system consisted of polyethylene glycol 3000 and sodium phosphate buffer adjusted to pH = 7. Influence of several parameters on partitioning was measured, including phase forming components’ concentrations, tie line lengths, phase volume ratio, supernatant dilution, process temperature and halogen salt supplementation. Partitioning coefficients up to 78 in the bottom phase were achieved with yields of over 90%. Tie line length and phase volume ratio had significant effect on enzyme partitioning.

The Effect of Phase Volume Ratio on Emulsion Type*

1954 ◽  
Vol 43 (2) ◽  
pp. 117-119 ◽  
Author(s):  
Rupert Salisbury ◽  
E.E. Leuallen ◽  
L.T. Chavkin
Keyword(s):  
Volume Ratio ◽  
Phase Volume ◽  
Phase Volume Ratio

Method of computing hydraulic gradient for the case of a two-phase mixture flowing in sloping pipes

2019 ◽  
Author(s):  
A.S. Kondratiev ◽  
T.L. Nha
Keyword(s):  
Solid Phase ◽  
Slope Angle ◽  
Axisymmetric Flow ◽  
Volume Ratio ◽  
Hydraulic Gradient ◽  
Transitional Region ◽  
Phase Volume ◽  
Two Phase ◽  
Phase Volume Ratio ◽  
Phase Mixture

The paper investigates two-phase mixture flows in sloping pipes employing two computational methods in the transitional region of pipe slope angle. We used methods of computing two-mixture flows in horizontal and vertical pipes as the basis for our equations. When flowing downwards through a sloping pipe, the solid phase volume ratio distribution changes most significantly: an axisymmetric flow through a vertical pipe transforms into a flow featuring a markedly non-uniform distribution of the solid phase along the vertical plane in the sloping pipe. When flowing upwards, the solid phase volume ratio profile is inversely transformed. Comparison of the experimental and computational data showed that the datasets are in a sufficiently good agreement. The computational method developed is semi-empirical and may be recommended for calculating hydraulic gradient in sloping pipes.

Study of ionizable drugs transfer across the water/ 1,2-dichloroethane interface with phase volume ratio equal to unity using a three-electrode system

2003 ◽  
Vol 48 (12) ◽  
pp. 1234-1239
Author(s):  
Meiqin Zhang ◽  
Peng Sun ◽  
Yong Chen ◽  
Fei Li ◽  
Zhao Gao ◽  
...  
Keyword(s):  
Volume Ratio ◽  
Electrode System ◽  
Phase Volume ◽  
Phase Volume Ratio

scholarly journals Solvent extraction of scandium from chlorination system with EHPAEH

2019 ◽  
Vol 277 ◽  
pp. 01002
Author(s):  
Lan Jiang ◽  
Hongliang Yang ◽  
Yang Sun
Keyword(s):  
Hydrochloric Acid ◽  
Organic Phase ◽  
Volume Ratio ◽  
Phase Volume ◽  
Acid Media ◽  
Organic System ◽  
Phase Volume Ratio ◽  
Ethyl Hexyl ◽  
Leaching Solution ◽  
Hydrochloric Acid Media

The extraction of scandium from hydrochloric acid media with EHPAEH is investigated. Fe3+ in synthesized solution would reduce the purity of scandium, therefore, N235 is selected as extractant for separating Fe3+ and Sc3+. Experimental results indicated that separation factor βFe/Sc reached 5416.4 with the organic system consisting of 20 vol% trinoctylamine(N235), phase volume ratio(O/A) of 1:1, extraction stage of 3. Then mono(2-ethyl hexyl)-2-ethyl hexyl phosphonate(EHPAEH) is employed to extract Sc3+ from the leaching solution of Fe3+ free. With the organic phase containing 5 vol% EHPAEH, phase volume ratio O/A of 1:5, at pH 0.3, nearly 99% scandium is extracted. Finally, the scandium-loaded organic phase is stripped with 4.5N hydrochloric acid, under phase volume ratio of 1:1 at 65°C.

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