Results 61 to 70 of about 20,819 (237)

Water, Alcohols, Amines, and Amides as Formal Hydrogen‐Atom‐Transfer Reagents Through Activation With Redox‐Active Lewis Acids

Angewandte Chemie, Volume 138, Issue 39, 21 September 2026.
Protic molecules containing strong O─H or N─H bonds typically resist hydrogen‐atom abstraction because of the high reactivity of the resulting heteroatom‐centered radicals. However, association of the protic molecules with redox‐active Lewis acids can provide powerful hydrogen‐atom donors or proton‐coupled‐electron‐transfer reagents.
Petra Vojáčková, Armido Studer
wiley   +2 more sources

Fabrication of oxygen-defective tungsten oxide nanorods for deep oxidative desulfurization of fuel

Petroleum Science, 2018
Owing to the increasingly serious environmental issues caused by the sulfur burnt in fuel, desulfurization has become an important topic. In this work, an amphiphilic oxygen-defective tungsten oxide was synthesized by a colloidal chemistry method.
Haibin Sun, Peiwen Wu, Jing He, Mingyang Liu, Linhua Zhu, Fengxia Zhu, Guangying Chen, Minqiang He, Wenshuai Zhu   +8 more
doaj   +1 more source

The Unexpected Desulfurization of 4-Aminothiophenols

The Journal of Organic Chemistry, 2007
Thermolysis of 4-aminophenyl benzyl sulfide at 523 K in the hydrogen donor solvent (HDS), 9,10-dihydroanthracene (AnH2), gave 4-aminothiophenol and toluene as the predominant products of the homolytic S-C bond cleavage. Under these conditions, a portion of the 4-aminothiophenol was desulfurized to aniline with first-order kinetics and with a rate ...
Mulder, Peter, Mozenson, Olga, Lin, Shuqiong, Ingold, Keith   +3 more
openaire   +3 more sources

Prospects of Eliminating Fluorspar Consumption in a Sustainable Argon‐Oxygen‐Decarburization Process

steel research international, EarlyView.
This study aims at identifying pathways for eliminating fluorspar consumption in the argon‐oxygen‐decarburization (AOD) process. Thermodynamic calculations suggest the feasibility of completely replacing fluorspar with alternative fluxes such as Al2O3, Na2O, K2O, and Li2O of suitable amounts.
Yu‐Chiao Lu, Fredrik Engström, Jyrki Pitkälä, Mikael Ersson   +3 more
wiley   +1 more source

Block copolymer-based CO2 separation membranes: synthesis, microstructures and recent progress

Advanced Membranes
Block copolymers (BCPs) have emerged as a fascinating tool within the realm of gas separation membranes, primarily for their remarkable ability to self-assemble into well-defined microstructures.
Jing Wei, Min Deng, Dengguo Yin, Dengrong Sun, Lin Yang, Lu Yao, Wenju Jiang, Shouliang Yi, Jing Deng, Xiaohua Ma, Zhuang Liu, Liangyin Chu, Maxim Bermeshev, Bart Van der Bruggen, Junfeng Zheng, Zhongde Dai   +15 more
doaj   +1 more source

Oxidative desulfurization using graphene and its composites for fuel containing thiophene and its derivatives: An update review

Egyptian Journal of Petroleum, 2018
Oxidative desulfurization, in which the aromatic sulfur containing compounds are oxidized to their analogical sulfones and subsequently extracted, has assured to be one of the exceedingly effective desulfurization processes for resulting ultra-low sulfur
Mohamed A. Betiha, Abdelrahman M. Rabie, Hoda S. Ahmed, Asmaa A. Abdelrahman, Mohamed F. El-Shahat   +4 more
doaj   +1 more source

Protein desulfurization and deselenization

Chemical Society Reviews
Chopping protein thiols or selenols provides powerful tools for chemical protein synthesis.
Diemer, Vincent, Roy, Eliott, Agouridas, Vangelis, Melnyk, Oleg   +3 more
openaire   +4 more sources

A Critical Review on Nitrogen Control in the Scrap‐Based Electric Arc Furnace Steelmaking Route to Produce Low‐Nitrogen Steels

steel research international, EarlyView.
In primary electric arc furnace (EAF) steelmaking, carbon boiling removes nitrogen from liquid steel and sustains slag foaming. In 100% scrap‐ or hydrogen direct reduced iron (HDRI)‐based EAF steelmaking, carbon boiling is absent; therefore, carbonaceous material and oxygen injection into the slag is needed to maintain foaming and avoid nitrogen ...
Zushu Li, Lei Guo, Jintao Gao, Yuri Korobeinikov   +3 more
wiley   +1 more source

Design of Integrated Automation Monitoring and Control System of Flue Gas Desulfurization and Its Applicatio

Gong-kuang zidonghua, 2011
In view of status of low desulphurization efficiency and no automatic control of desulfurization process in original flue gas desulfurization system of Thermal Power Plant of Daizhuang Coal Mine, the paper analyzed technical process of ammonia flue gas ...
LI Guo-feng
doaj  

Oxaziridines: Versatile Reagents in Modern Organic Synthesis

The Chemical Record, EarlyView.
Being capable of transferring an O atom and N‐group/atom, oxaziridines are considered multitasking agents. These are employed for diverse organic transformations, such as epoxidation of olefins, α‐ and γ‐hydroxylation/amination of carbonyl compounds, oxidation of sulfides, [3+2]cycloaddition with unsaturated systems.
Ajeet Chandra, Subba Rao Cheekatla, Keshaba Nanda Parida   +2 more
wiley   +1 more source