Equilibrium and kinetics of copper extraction from acidic sulfate solutions with isomeric 1-(2′-hydroxy-5′-alkyl-phenyl)-1-alkanone (E)-oximes

1991 ◽  
Vol 150 (2) ◽  
pp. 335-350 ◽  
Author(s):  
J. Szymanowski ◽  
E. Krzy⩅anowska ◽  
R. Cierpiszewski ◽  
K. Prochaska
Keyword(s):  
Copper Extraction ◽  
Sulfate Solutions ◽  
Acidic Sulfate ◽  
Equilibrium And Kinetics ◽  
Kinetics Of

Chemical model for copper extraction from acidic sulfate solutions by hydroxy oximes

1989 ◽  
Vol 28 (3) ◽  
pp. 284-288 ◽  
Author(s):  
Jerzy Piotrowicz ◽  
Mariusz B. Bogacki ◽  
Stanislaw Wasylkiewicz ◽  
Jan Szymanowski
Keyword(s):  
Chemical Model ◽  
Copper Extraction ◽  
Sulfate Solutions ◽  
Acidic Sulfate

Copper(II) extraction by alkyl- and alkenyl-substituted 8-quinolinols

1989 ◽  
Vol 54 (4) ◽  
pp. 922-933 ◽  
Author(s):  
Mirko Černý ◽  
Jan Vilímec ◽  
Jitka Šťastová ◽  
Vladimír Rod ◽  
Miloš Kraus
Keyword(s):  
Extraction Process ◽  
Side Chain ◽  
Complex Nature ◽  
Copper Extraction ◽  
Rate Data ◽  
Rate Parameter ◽  
Extraction Constants ◽  
Equilibrium And Kinetics ◽  
Equilibrium Data ◽  
Kinetics Of

The equilibrium and kinetics of copper extraction from water solutions of copper(II) perchlorate into chloroform by 8-quinolinol, 2-methyl-8-quinolinol, six 7-alkenyl-8-quinolinols (with C3 to C12 side chains) and by 7-(p-tert.butylbenzyl)-8-quinolinol were measured. The data were treated by previously derived models which take into account the complex nature of the extraction process. The equilibrium data were expressed as extraction constants Kex, the rate data as the rate parameter Θ and initial extraction rates J0, respectively. The influence of the position, size and structure of the substituents on these parameters is discussed. A strong effect of the position of the double bond C=C in the side chain was found.

Adsorption Equilibrium and Kinetics of CO2 and H2O on Activated Carbon

2012 ◽  
Vol 27 (2) ◽  
pp. 139-145 ◽  
Author(s):  
Dong XU ◽  
Jun ZHANG ◽  
Gang LI ◽  
Penny XIAO ◽  
Paul WEBLEY ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Adsorption Equilibrium ◽  
Equilibrium And Kinetics ◽  
Adsorption Equilibrium And Kinetics ◽  
Kinetics Of

Codeposition of copper and tin from acidic sulfate solutions containing polyethylene glycols. Effect of length of the hydrocarbon chain

2008 ◽  
Vol 14 (4) ◽  
pp. 507-514 ◽  
Author(s):  
Arvydas Survila ◽  
Dalia Bražinskienė ◽  
Stasė Kanapeckaitė ◽  
Zenius Mockus ◽  
Vitalija Jasulaitienė
Keyword(s):  
Hydrocarbon Chain ◽  
Polyethylene Glycols ◽  
Sulfate Solutions ◽  
Acidic Sulfate

scholarly journals Silica Removal from a Paper Mill Effluent by Adsorption on Pseudoboehmite and γ-Al2O3

Water ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2031
Author(s):  
Ruben Miranda ◽  
Isabel Latour ◽  
Angeles Blanco
Keyword(s):  
Paper Mill ◽  
Ph Adjustment ◽  
Paper Mill Effluent ◽  
Kinetics Studies ◽  
Silica Removal ◽  
Industrial Water Use ◽  
Optimum Ph ◽  
Initial Ph ◽  
Equilibrium And Kinetics ◽  
Kinetics Of

Effluent reuse is a common practice for sustainable industrial water use. Salt removal is usually carried out by a combination of membrane processes with a final reverse osmosis (RO). However, the presence of silica limits the RO efficiency due to its high scaling potential and the difficulty of cleaning the fouled membranes. Silica adsorption has many advantages compared to coagulation and precipitation at high pHs: pH adjustment is not necessary, the conductivity of treated waters is not increased, and there is no sludge generation. Therefore, this study investigates the feasibility of using pseudoboehmite and its calcination product (γ-Al2O3) for silica adsorption from a paper mill effluent. The effect of sorbent dosage, pH, and temperature, including both equilibrium and kinetics studies, were studied. γ-Al2O3 was clearly more efficient than pseudoboehmite, with optimal dosages around 2.5–5 g/L vs. 7.5–15 g/L. The optimum pH is around 8.5–10, which fits well with the initial pH of the effluent. The kinetics of silica adsorption is fast, especially at high dosages and temperatures: 80–90% of the removable silica is removed in 1 h. At these conditions, silica removal is around 75–85% (<50 mg/L SiO2 in the treated water).

Equilibrium and kinetics of Safranin O dye adsorption on MgO decked multi-layered graphene

2014 ◽  
Vol 258 ◽  
pp. 412-419 ◽  
Author(s):  
Naresh Kumar Rotte ◽  
Subbareddy Yerramala ◽  
Jeyaraj Boniface ◽  
Vadali V.S.S. Srikanth
Keyword(s):  
Dye Adsorption ◽  
Equilibrium And Kinetics ◽  
Safranin O ◽  
Kinetics Of

Study on schwertmannite production from copper heap leach solutions and its efficiency in arsenic removal from acidic sulfate solutions

2014 ◽  
Vol 147-148 ◽  
pp. 30-40 ◽  
Author(s):  
Sengpasith HoungAloune ◽  
Takahiro Kawaai ◽  
Naoki Hiroyoshi ◽  
Mayumi Ito
Keyword(s):  
Arsenic Removal ◽  
Heap Leach ◽  
Sulfate Solutions ◽  
Acidic Sulfate
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