Sulfonated Xantphos Ligand and Methylated Cyclodextrin:  A Winning Combination for Rhodium-Catalyzed Hydroformylation of Higher Olefins in Aqueous Medium

2005 ◽  
Vol 24 (9) ◽  
pp. 2070-2075 ◽  
Author(s):  
Loïc Leclercq ◽  
Frédéric Hapiot ◽  
Sébastien Tilloy ◽  
Kevita Ramkisoensing ◽  
Joost N. H. Reek ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Methylated Cyclodextrin ◽  
Higher Olefins

Rheological behaviour of the condensed suspension of fluorinated montmorillonite “rassoul” particles in aqueous medium

2005 ◽  
Vol 123 ◽  
pp. 341-344
Author(s):  
A. Khaldoun ◽  
F. González-Caballero ◽  
J. G. López-Durán ◽  
N. Mahrach ◽  
M. L. Kerkeb
Keyword(s):  
Aqueous Medium ◽  
Rheological Behaviour

Changes of Magnetic Characteristics of iron Oxides and Hydroxides in Aqueous Medium

2017 ◽  
Vol 39 (1) ◽  
pp. 46-52
Author(s):  
T. SAVCHENKO ◽  
◽  
A. GRECHANOVSKY ◽  
A. BRIK ◽  
N. DUDCHENKO
Keyword(s):  
Aqueous Medium ◽  
Iron Oxides ◽  
Magnetic Characteristics

Biomimic Oxidation Kinetics of Folic Acid by Amine μ-peroxo Complex in Aqueous medium

2017 ◽  
Vol 7 (12) ◽  
pp. 1196-1201
Author(s):  
S. Ignatius Arockiam
Keyword(s):  
Folic Acid ◽  
Aqueous Medium ◽  
Oxidation Kinetics ◽  
Peroxo Complex ◽  
Kinetics Of

Surface interaction of sweet potato peels (Ipomoea batata) with Cd(II) and Pb(II) ions in aqueous medium

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Aqueous Medium ◽  
Sweet Potato ◽  
Adsorption Process ◽  
Low Cost ◽  
Correlation Coefficients ◽  
Order Kinetic ◽  
Thermodynamic Evaluation ◽  
Dissociative Mechanism ◽  
Pseudo Second Order ◽  
Potato Peels

The removal of Cd(II) and Pb(II) ions from aqueous medium was studied using potato peels biomass. The adsorption process was evaluated using Atomic Absorption Spectrophotometer (AAS). The Vibrational band of the potato peels was studied using Fourier Transform Infrared Spectroscopy (FTIR). The adsorption process was carried out with respect to concentration, time, pH, particle size and the thermodynamic evaluation of the process was carried at temperatures of 30, 40, 50 and 60(0C), respectively. The FTIR studies revealed that the potato peels was composed of –OH, -NH, –C=N, –C=C and –C-O-C functional groups. The optimum removal was obtained at pH 8 and contact time of 20 min. The adsorption process followed Freundlich adsorption and pseudo second-order kinetic models with correlation coefficients (R2) greater than 0.900. The equilibrium adsorption capacity showed that Pb(II) ion was more adsorbed on the surface of the potato peels biomass versus Cd (II) ion (200.91 mg/g > 125.00 mg/g). The thermodynamic studies indicated endothermic, dissociative mechanism and spontaneous adsorption process. This study shows that sweet potato peels is useful as a low-cost adsorbent for the removal of Cd(II) and Pb(II) ions from aqueous medium.

Extraction of Copper(II) from Sulphate Aqueous Medium with N,N′-bis(2-hydroxy-1-naphthalideneaminoethyl)amine Polydentate Schiff Base in Aqueous Two-phase Micellar of Non-Ionic Surfactant

2009 ◽  
Vol 46 (6) ◽  
pp. 361-367 ◽  
Author(s):  
H. Reffas ◽  
T. Benabdallah ◽  
M. Hadj Youcef ◽  
H. Ilikti
Keyword(s):  
Schiff Base ◽  
Aqueous Medium ◽  
Ionic Surfactant ◽  
Two Phase
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