Because free radical mechanisms may contribute to brain injury in hemorrhagic stroke, the effect of the free radical trapping agent disodium 4-[(tert-butylimino)methyl]benzene-1,3-disulfonate N-oxide (NXY-059) was investigated on outcome following intracerebral hemorrhage (ICH) in rat. ICH was i...

The reaction of Mn2(CO)10 with tert-butyl isocyanide in the presence of 10 bar of carbon monoxide leads to the formation of cis- and trans-[Mn(tBuNC)4(CN)(CO)], 1a and 1b, in good yields together with [Mn(tBuNC)6]CN (2), as a minor product. Nevertheless, the reaction pathway highly depends on th...

CsF induced 1,4-elimination of ammonium bromide 7, prepared by quaternization of N-tert-butyl o-(dimethylaminomethyl)benzimidoylsilane 6, provides a new generation of α-(N-tert-butylimino)-o-quinodimethane (3a), which gives benzocyclobutenone N-tert-butylimine (8) in the absence of dienophile. ...

A simple and reliable method for synthesizing four isomers of parinaric acid from α-linolenic acid (ALA) in high yields is described. The methylene-interrupted, cis triene system (1,4,7-octatriene) of ALA and common to other naturally occurring polyunsaturated fatty acids was transformed to a c...

In this study, the deactivation of commercial V2O5-WO3/TiO2 selective catalytic reduction catalysts by Pb was discussed primarily, and the combined promotive effects of SO2 and HCl on Pb-poisoned V2O5-WO3/TiO2 catalysts were studied. The results show that the treatment with SO2 and HCl markedly ...

Deacon process, one-step catalytic oxidation of HCl to Cl2, is the most effective way to realize the recycling utilization of chlorine element in industry since 1868. However, the stability of non-noble metal catalysts, e.g. Cr-based catalysts, is problematic to be commercialized due to the Cr l...

The HCl absorption by cement raw meals was experimentally evaluated in the temperature range 100-180℃, using a fixed-bed set-up and gas phase HCl content between 50ppmv and 200ppmv. The effects of temperature, gas phase composition and dispersion of raw meal particles on HCl absorption capacity...

Impurity removal is essential for the recovery and regeneration of silicon resources from diamond wire saw powder by metallurgical purification technologies. In this paper, the aluminum was removed from the diamond wire saw powder via a direct HCl leaching method. In order to analyze the removal...

The Montreal Protocol has banned the production of long-lived chlorine-containing gases such as chlorofluorocarbons (CFCs) that deplete stratospheric ozone. These halogenated compounds ultimately form HCl in the upper atmosphere; the effectiveness of the Montreal Protocol can therefore be monito...

Two chromatographic methods were suggested for the simultaneous determination of a binary mixture containing Saxagliptin HCl (SAG) and Metformin HCl (MET). First method was RP-HPLC method. Chromatographic separation was done on Kinetex™ column–C18 (4.6 × 150 mm, 2.6 µm) using mobile phase con...

The potassium vapor released during the combustion of biomass are known to result in serious ash deposition, fouling and corrosion issues of biomass furnaces. To develop potassium control technologies to mitigate these issues and achieve clean utilization of biomass fuel, a better understanding ...

Sodium emissions during pulverized-coal combustion (PCC) are known to result in severe ash-related operating issues of coal furnaces, e.g., fouling, slagging and corrosion. To relieve these issues and advance the clean utilization technologies of coal, a better understanding of the fundamental m...

HCl emission control optimization from cement plants requires a quantification of the HCl absorption capacity of raw meals (mixtures of fine particles of raw materials) and the determination of raw meal constituent effects on HCl capture below 400 °C. This work reports lab data obtained by ramp...

It is a great challenge to obtain reliable results in reasonable time by the Monte Carlo (MC) method in solving the deep-penetration shielding problem. Based on Discrete Ordinate (SN) fluence rate, local and global variance reduction (LVR and GVR) methods use the biased source and weight window ...

This research studies the release of bromine species from HBr-modified fly ash and the subsequent homogeneous oxidation of gaseous elemental mercury (Hg0) by active gaseous bromine species during heating. Tests utilize an innovative bench-scale experimental system specialized for the homogeneous...

An efficient and facile α-hydroxylation of ketones catalyzed by CuBr2 or HBr in DMSO is developed, providing secondary/tertiary α-hydroxy carbonyl compounds in moderate to good yields (up to 87%). A series of control experiments suggested that water and DMSO may work cooperatively in the hydro...

Hydrogen bromide (HBr) oxidation to molecular bromine (Br2) is demonstrated in a chemical looping process using a molten bromide salt. The two-step process is operated at 500 °C and first contacts oxygen with molten KBr-LiBr-NiBr2 to form Br2 gas and a suspension of nickel oxide (NiO) particles...

The study of InP etching kinetics as well as the evaluation of InP etching mechanism in HBr + Cl2 + Ar inductively coupled plasma were carried out. Experiments on the measurements of the etching rates for InP, SiO2, and SiNx as well as plasma diagnostics using Langmuir probes and optical emissio...

Modeling and optimization of key design parameters of bioreactors are critical for development of economically and technically viable algae technologies. The objective of this study is to use computational fluid dynamics (CFD) modeling to design a novel enclosed Horizontal BioReactor (HBR) equip...

A novel and efficient synthesis of Hantzsch 1,4-dihydropyridines through metal-free oxidative CC coupling process was described. The reaction between benzylic alcohols, 1,3-dicarbonyl compounds and ammonium hydroxide in the presence of HBr in DMSO at 75 °C led to afford 1,4-dihydropyridine in e...