Results 1 to 10 of about 750 (118)

Investigation on Gold Dissolution Performance and Mechanism in Imidazolium Cyanate Ionic Liquids [PDF]

Molecules
To explore green gold leaching reagents, a series of imidazolium cyanate ionic liquids (ILs), 1-ethyl-3-methyl-imidazolium cyanate ([C2MIM][OCN]), 1-propyl-3-methyl-imidazolium cyanate ([C3MIM][OCN]) and 1-butyl-3-methyl-imidazolcyanate ([C4MIM][OCN ...
Na Zhang, Yuxin Zhang, Zhengyu Liu, Ziyuan Liu, Chunbao Sun, N. Emre Altun, Jue Kou   +6 more
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Synthesis and Biological Importance of 2-(thio)ureabenzothiazoles [PDF]

Molecules, 2022
The (thio)urea and benzothiazole (BT) derivatives have been shown to have a broad spectrum of biological activities. These groups, when bonded, result in the 2-(thio)ureabenzothizoles (TBT and UBT), which could favor the physicochemical and biological ...
Martha Cecilia Rosales-Hernández, Jessica E. Mendieta-Wejebe, Itzia I. Padilla-Martínez, Efrén V. García-Báez, Alejandro Cruz   +4 more
doaj   +2 more sources

Synthesis and pharmacological profiling of cis-1-amino-2-indanol derivatives as α-glucosidase inhibitors [PDF]

Scientific Reports
By treating cis-1-amino-2-indanol with different functionalized isocyanates and isothiocyanates, a group of 15 indanol derivatives were synthesized. The synthesis was effectively performed employing a previously proven method and the resulting products ...
Serab Khan, Farzana Shaheen, Liaqat Ali, Ajmal Khan, Muhammad U. Anwar, Atta Ullah, Sobia Ahsan Halim, Faizullah Khan, Saeed Ullah, Jalal Uddin, Ahmed Al-Harrasi, Javid Hussain   +11 more
doaj   +2 more sources

Challenge N- versus O-six-membered annulation: FeCl3-catalyzed synthesis of heterocyclic N,O-aminals [PDF]

Beilstein Journal of Organic Chemistry
A new class of heterocyclic N,O-aminal and hemiaminal scaffolds was successfully obtained by means of a three-component reaction (3-CR) of 1,2-diaza-1,3-dienes (DDs), α-aminoacetals and iso(thio)cyanates.
Giacomo Mari, Lucia De Crescentini, Gianfranco Favi, Fabio Mantellini, Diego Olivieri, Stefania Santeusanio   +5 more
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Photocascade chemoselective controlling of ambident thio(seleno)cyanates with alkenes via catalyst modulation [PDF]

Nature Communications
Controlling the ambident reactivity of thiocyanates in reaction manifolds has been a long-standing and formidable challenge. We report herein a photoredox strategy for installing thiocyanates and isothiocyanates in a controlled chemoselective fashion by ...
Injamam Ul Hoque, Apurba Samanta, Shyamal Pramanik, Soumyadeep Roy Chowdhury, Rabindranath Lo, Soumitra Maity   +5 more
doaj   +2 more sources

Carbonitration of a tool for pressing stainless steel pipes [PDF]

Журнал інженерних наук, 2020
To upgrade the operational stability of the tool at LLC “Karbaz”, Sumy, Ukraine, carbonation of tools and samples for research in melts of salts of cyanates and carbonates of alkali metals at 570–580 °C was carried out to obtain a layer thickness of 0.15–
Ivanov I. V., Mohylenets M. V., Dumenko K. A., Kryvchyk L., Khokhlova T. S., Pinchuk V. L.   +5 more
doaj   +1 more source

Detoxification of effluents with cyanide. Application on a cyanide gossan mineral [PDF]

E3S Web of Conferences, 2023
The process of cyanidation is employed to extract the gold and silver components from minerals. As a result of this procedure, the production of effluents and solid waste occurs, wherein the presence of free cyanide is observed as the most hazardous form.
Da Cruz Abby, Daza María, Zavala Sandra, Camargo Steve, Balbin Nadia   +4 more
doaj   +1 more source

Nitriding in non-toxic salts bath: An approach to implement cleaner production in the metallurgic industry

Cleaner Engineering and Technology, 2021
The need for sustainable development has been reflected in the adoption of cleaner production initiatives in the last years. However, the literature indicates that more research is still necessary to engage industries in adopting alternatives to reduce ...
Vinicius Timm Bonow, Débora Stefani Maciel, Natalia Ledur Fenner, Afonso Reguly, André Zimmer, Cínthia Gabriely Zimmer   +5 more
doaj   +1 more source

An Evaluation of Four Electrolyte Models for the Prediction of Thermodynamic Properties of Aqueous Electrolyte Solutions [PDF]

Iranian Journal of Oil & Gas Science and Technology, 2017
In this work, the performance of four electrolyte models for prediction the osmotic and activity coefficients of different aqueous salt solutions at 298 K, atmospheric pressure and in a wide range of concentrations are evaluated. In two of these models, (
Kamalodin Momeni, Hesam Najibi Najibi, Mohammad T. Sadeghi   +2 more
doaj   +1 more source

High wear resistance and better pitting corrosion resistance of AISI 316L stainless steel by a self-protective oxy-nitrocarburizing paste

Journal of Materials Research and Technology, 2022
Simultaneous oxidation and nitrocarburizing of AISI 316 SS at 580 °C for 5, 10, 15, and 20 min were studied using self-protecting pastes of sodium cyanate and sodium carbonate.
L. López-Ojeda, G. Vargas-Gutiérrez
doaj   +1 more source