Methods for transforming rare earth (RE) sulfate into chloride mainly include extraction process with organophosphonic mono-acids or aliphatic acids and precipitation process with ammonium bicarbonate (NH4HCO3). In this paper, alkylphenoxy carboxylic acids(HAs) of p-dodecylphenoxy acetic acid (H...

Herein, we describe a novel amphipathic chitosan derivative (N-octyl-N’-phthalyl-O-phosphoryl chitosan, abbreviated as OPPC) as an effective oral delivery platform for P-gp substrates, especially paclitaxel (PTX). OPPC could readily self-assemble into micelles, solubilize and encapsulate PTX in...

Seeking new solvents for green processing of chalcopyrite at low temperature with low energy and acid consumption as well as low pollutant release is key task in hydrometallurgy of chalcopyrite. In the present study, 1-hexyl-3-methyl-imidazolium hydrogen sulfate ([HMIm]HSO4) aqueous solution was...

In the present work, n-butyl levulinate is synthesized by esterification of levulinic acid (LA) with n-butanol using Brønsted acidic ionic liquid [MIM][HSO4] as a catalyst in a solvent free condition. The prepared IL was characterized by FT-IR, 13C‐NMR and 1H–NMR. For optimization study, centr...

A novel thiophene branched polystyrene copolymer (PS-Th) was successfully synthesized and well characterized. Two different Organic Field Effect Transistor (OFET) devices were fabricated by using this novel PS-Th material and polystyrene (PS) as insulator materials and main performance parameter...

The present work investigated an effective reductive desulfurization method for thiophene sulfur in high organic sulfur coal utilizing the potassium tert-butoxide/hydrosilane. Maximum decreases of 65.8% and 64.2% in organic sulfur for Xinyu coal and Guxian raw coals were, respectively obtained u...

Catalytic removal of the S-content from thiophene is a central step in efforts aiming to reduce the environmental burdens of transportation fuels. In this contribution, we investigate the hydrodesulfurization (HDS) mechanisms of thiophene (C4H4S) over γ-Mo2N catalyst by means of density functio...

In the present study, Quantitative Structure-Properties Relationship (QSPR) methodology has been employed to propose predictive and descriptive models for the prediction of thiophene distribution between the ionic liquid (IL) and hydrocarbon-rich phases in ternary systems containing IL, thiophen...

Thiophene (T) is one of the main sulfur-containing impurities in crude benzene produced by coke production. One effective way to remove the majority of thiophene from crude benzene is extractive distillation (ED) with dimethylformamide (DMF), which has been reported to increase the relative vola...

Polythiophenes have attracted much attention for their application in flexible, low-cost, tunable, and comparatively efficient optoelectronic devices due to their highly-controlled synthesis, modifiable microstructures, and favorable optoelectronic properties. Grignard Metathesis (GRIM) polymeri...

Ten thiophene derivatives monomers were designed based on thiophene-linker-thiophene platform and were subjected to CBr/CH bulk polycondensation. All of them were converted to corresponding polythiophene derivatives smoothly, indicating that up to three-building-blocks of thiophene monomers can ...

One option for reducing the sulphur content in gasoline is the reduction in the FCC process using specific additives. In this context, the cracking of a hexane stream containing 100 ppm thiophene was used to test Beta zeolite modified with zinc at different contents. It was confirmed that hydrog...

We study the adsorption of thiophene on Al(100), Ir(100), W(100), Mo(100), Cr(100), Ta(100), Nb(100), V(100), and Co(10–10) surfaces using density functional theory specifically the van der Waals inclusive optB88-vdW functional. We present a thorough report detailing the geometric and electroni...

Three stereoselective synthetic approaches to tetrahydrofuran-containing biaryl scaffolds are described. All approaches involve a high-pressure promoted Diels-Alder reaction of substituted diene with methyl propiolate to give, after aromatization, the corresponding biaryl. The tetrahydrofuran mo...

A novel tetrahydrofuran derivative, trigonohowine (1), together with five known tetrahydrofuran derivatives (2–6), were isolated from the stems and leaves of Trigonostemon howii. The structure of 1 was elucidated by extensive spectroscopic methods and the known compounds were identified by comp...

Salts strongly affect the phase equilibria of aqueous systems in biotechnological processes. In this work, the influence of salt on the performance of extracting 5-hydroxymethylfurfural (HMF) from aqueous media using tetrahydrofuran (THF) was investigated. The liquid–liquid equilibria (LLE) of ...

Raman binary calibration curves for poly(styrene) – tetrahydrofuran and poly(methyl methacrylate) – tetrahydrofuran were obtained from their prepared samples in sealed quartz vials. These binary calibration curves were successfully tested to calculate the amount of polymers and solvent in the ...

Clathrate hydrate is a kind of environment-friendly material for storing hydrogen under a certain condition of temperature and pressure. In this work, tetrahydrofuran aqueous solution with concentration of 3.0 mol% was adopted to investigate hydrogen storage process. Moreover, thermal property o...

Oxidative stability is of particular importance to maintain the morphology and adjust physicochemical properties of pitch-based carbon products. Due to the complex composition of pitch, the oxidative reactivity of the pitch components has rarely been reported to date, so that the oxidative stabi...

The C18–C26 fragment of amphidinolide C congeners has been synthesized starting from methyl acetoacetate in 14 steps in >17.0% overall yield. The C20 stereogenic center was secured by asymmetric hydrogenation of a β-keto ester and the configuration at both C23 and C24 was introduced by asymmet...