Results 61 to 70 of about 23,681 (206)

Revisiting acidulation for tall oil and lignin manufacturing

open access: yesThe Canadian Journal of Chemical Engineering, Volume 104, Issue 4, Page 1677-1691, April 2026.
Abstract Tall oil is a byproduct of the kraft pulping process when softwood is used as raw material. As the production of softwood‐based pulp is in high demand, the optimization of the tall oil production process needs to be revisited to ensure the highest quality and quantity of tall oil manufacturing. In this work, the process for tall oil production
Thomas Aro, Weijue Gao, Pedram Fatehi
wiley   +1 more source

Synthesis of 2,3-Disubstituted Carbazoles, Benzo[c]carbazoles, and Phenanthrenes Through FeCl3-Mediated Cyclization of Triene Frameworks

open access: yesSynOpen, 2018
A facile synthesis of 2,3-disubstituted carbazoles through electrocyclization of 2,3-divinylindoles using FeCl3 in DMF at reflux is reported. The methodology was found to be applicable for smooth transformation of 3-aryl-2-vinylindole as well as 2 ...
Potharaju Raju   +3 more
doaj   +1 more source

Rapid Characterizaiton of Chemical Constituents of the Tubers of Gymnadenia conopsea by UPLC–Orbitrap–MS/MS Analysis

open access: yesMolecules, 2020
Gymnadenia conopsea R. Br. is a traditional Tibetan medicinal plant that grows at altitudes above 3000 m, which is used to treat neurasthenia, asthma, coughs, and chronic hepatitis.
Xin Wang   +9 more
doaj   +1 more source

Organic and Metallacages for Chemical Sensing: Progress in Water‐Compatible Systems

open access: yesAdvanced Sensor Research, Volume 5, Issue 3, March 2026.
Supramolecular cages function as three‐dimensional receptors for selective molecular recognition and sensing, and this review outlines design principles for water‐stable architectures, key analyte‐ and medium‐dependent challenges, recent water‐compatible examples (including polymer‐integrated systems), and future opportunities for cage‐based ...
Rabia Zahid   +4 more
wiley   +1 more source

Isolation and purification of phenanthrene from phenanthrene waste I

open access: yes, 2008
Department of Chemical Engineering. Taiyuan University of Technology, Taiyuan, Shanxi 030024, P.R. China Manuscript received 10 May 2007, revised 14 November 2007, accepted 22 January 2008 Isolation and purification of phenanthrene from phenanthrene waste has been studied by fractionation, recrystallization and precipitation.
Zuyu, Liu, Endong, Wang, Zhizhong, Wang
openaire   +1 more source

Cyanobacteria as multifunctional bioinputs for sustainable intensification, soil health enhancement, and climate resilience in rice‐based cropping systems

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 1, March 2026.
Abstract Ensuring food security goals through the provision of sustainable energy and food without compromising environmental sustainability is the current requirement amid threats from climate change, uncontrolled global population, and scarcity of natural resources.
Muhammad Shahbaz Farooq   +9 more
wiley   +1 more source

Svjetlom do heteropolicikličkih spojeva; Reakcije supstituiranih furostilbena [PDF]

open access: yesKemija u Industriji, 2007
Synthetic organic photochemistry, the chemistry of excited states of a molecule, differs from the ground state chemistry and provides a simple pathway to complicated structures, heavily obtainable by a classic synthetic approach.
Šindler-Kulyk, M., Škorić, I.
doaj  

Synthesis, Properties, Applications and Challenges of Multicomponent Doped Organic Room Temperature Phosphorescence Materials

open access: yesAggregate, Volume 7, Issue 3, March 2026.
The multi‐component doping strategy, involving self‐assembly, host‐guest systems, and crystal engineering, has gained attention for its simplicity, cost‐effectiveness, structural diversity, and adjustable room‐temperature phosphorescence (RTP). This review summarizes and evaluates the progress in creating RTP materials using this strategy, highlighting
Zhenjie Zhou   +10 more
wiley   +1 more source

Modelling and simulation of hydrogen production via natural gas plasma pyrolysis

open access: yesThe Canadian Journal of Chemical Engineering, Volume 104, Issue 3, Page 1174-1189, March 2026.
Methane pyrolysis simulation model. Abstract Plasma pyrolysis is a cutting‐edge technology that produces hydrogen and solid carbon from methane without emitting carbon dioxide. In this study, we developed a process simulation model in Aspen HYSYS to analyze the behaviour of this technology at the commercial scale.
Muhammad Badrul Islam Chowdhury   +2 more
wiley   +1 more source

[2+2+2] Annulation of N-(1-Naphthyl)acetamide with Two Alkynoates via Cleavage of Adjacent C–H and C–N Bonds Catalyzed by an Electron-Deficient Rhodium(III) Complex

open access: yesMolecules, 2018
It has been established that an electron-deficient cationic CpE-rhodium(III) complex catalyzes the non-oxidative [2+2+2] annulation of N-(1-naphthyl)acetamide with two alkynoates via cleavage of the adjacent C⁻H and C⁻N bonds to give densely ...
Jyunichi Terasawa   +3 more
doaj   +1 more source

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