Results 51 to 60 of about 1,644,753 (251)

The Effect of Organic Compounds on Iron Concentration in the Process of Removing Iron from Sulfur-Containing Sodium Aluminate Solution via Oxidation

Metals
In this study, we investigate the effects of adding varying proportions of fulvic acid during the digestion of pyrite on the iron concentration in both dissolved and diluted sodium aluminate solutions.
Jingyi Hao, Daxue Fu, Na Xu, Qing Han
doaj   +1 more source

Synthesis Antioxidant and Antimicrobial Activities of N-[(5′-Substituted 2′-phenyl-1H-indol-3′-yl)methylene]-5-(pyridin-4-yl)-1,3,4-oxadiazol-2-amines

Journal of Chemistry, 2013
The main aim of the present study was to develop antimicrobial and antioxidant compounds. As a part of systematic investigation, several new compounds 3a–c, 4a–c, and 5a–f were synthesized and screened for their biological activities.
A. R. Saundane, Vijaykumar Katkar, A. Verma Vaijinath   +2 more
doaj   +1 more source

Corroded scale analysis from water distribution pipes [PDF]

Hemijska Industrija, 2011
The subject of this study was the steel pipes that are part of Belgrade's drinking water supply network. In order to investigate the mutual effects of corrosion and water quality, the corrosion scales on the pipes were analyzed.
Rajaković-Ognjanović Vladana N., Grgur Branimir N.   +1 more
doaj   +1 more source

Hydrophobic MFI‐Type Zeolites via Alkali‐Cation‐Induced Defect Healing: Implications for Adsorbent and Catalyst Design

Advanced Materials, EarlyView.
Sub‐stoichiometric amounts of Na+ or K+ enhance defect healing during Silicalite‐1 (MFI) and TS‐1 calcination by promoting Si–O–Si annealing and healing framework vacancies. The resulting defect‐free zeolites are more hydrophobic and show improved butanol/water separation and improved activity and selectivity in the epoxidation of 1‐hexene, offering a ...
Christos Kanteler, Pau Ferri, Francisco Javier Escobar‐Bedia, Álvaro Mayoral, Alejandro Vidal‐Moya, Richard Kendra, Chen Lei, Miguel Palomino, Fernando Rey, Lukáš Grajciar, Christopher James Heard, Pedro Serna, Mercedes Boronat, Cristina Martínez, Manuel Moliner   +14 more
wiley   +1 more source

Produção de sulfato ferroso a partir do resíduo proveniente da mineração de ferro [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Química, Florianópolis, 2012.O ferro é o metal de transição mais abundante da crosta terrestre e o quarto de todos os elementos ...
Cardoso, Kelly Araldi
core  

Production of siderophore type chelates by mixed bacterioplankton populations in nutrient enriched seawater incubations [PDF]

, 2004
Siderophore type chelates were isolated from nutrient enriched seawater collected from coastal and near shore environments and detected using a novel high performance liquid chromatography – electrospray ionisation – mass spectrometric technique ...
McCormack, P., Achterberg, Eric P., Gledhill, M., Achterberg, E.P., Ussher, S., Worsfold, P., Mantoura, R.F.C., Gledhill, Martha, Mantoura, R. F. C., Worsfold, P. J.   +9 more
core   +1 more source

Fenton Oxidation Efficiency in Removal of Detergents from Water [PDF]

آب و فاضلاب, 2010
Advanced oxidation processes are associated with the production of very active hydroxyle radicals with a high potential for oxidation of organic compounds.
Seyed Alireza Mousavi, Amir Hossein Mahvi, Alireza Mesdaghinia, Simin Nasseri, Hamid Reza Honari   +4 more
doaj  

Controlled Growth of Boron Nitride in Various Phases

Advanced Materials Interfaces, EarlyView.
Phase‐selective boron nitride growth is presented as a unified materials‐design problem across hexagonal, rhombohedral, cubic, and amorphous phases. By linking synthesis routes to thermodynamic stability, kinetic accessibility, surface diffusion, interfacial templating, and energetic activation, this review clarifies how bonding and stacking are ...
Pan Wu, Kanghao Xie, Jiajie Qi, Xiaorui Zheng, Kaihui Liu, Xuedong Bai, Li Wang   +6 more
wiley   +1 more source

Mathematical modeling of ferrous sulfate oxidation in presence of air

MATEC Web of Conferences, 2018
In the present paper we studied the oxidation of ferrous sulfate salt with oxygen. ferric ammonium sulfate and ferrous sulfate were used to prepare standard solutions of Fe(III) and Fe(II) solutions. Oxidation experiments were carried out by mixing FeSO4·
Beltrán-Prieto Juan Carlos, Kolomazník Karel   +1 more
doaj   +1 more source

Controlling Polystyrene Particle Distribution in Colloidal Lithography For Correlated‐Disorder Structures

Advanced Optical Materials, EarlyView.
Colloidal lithography is a low‐cost, simple and scalable technique to fabricate correlated‐disorder nanostructures for light‐trapping in solar cells. This work investigates the control of polystyrene particle distribution in colloidal lithography, highlighting the importance of particle surface functionalization as well as the ability to tune the ...
Laura de Almeida, Jean‐Baptiste Doucet, Mathieu Arribat, Guilhem Almuneau, Stéphane Collin, Inès Revol   +5 more
wiley   +1 more source