The performance profile of a supported metallocene catalyst in slurry-phase ethylene polymerisation can be significantly enhanced by tuning the chemical composition support. By employing supports derived from zinc-containing layered double hydroxides (LDHs), slurry phase productivity (EBI)ZrCl2 (EBI = rac-ethylenebis(indenyl)) quadrupled relative to magnesium-containing Productivity increases a...

The catalytic pyrolysis of beech wood and corncob was experimentally investigated considering six additives containing alkali alkaline earth metals (Na2CO3, NaOH, NaCl, KCl, CaCl2 MgCl2). Thermogravimetric analyses (TGA) were carried out with raw feedstocks samples impregnated different concentrations catalysts. In a bid to better interpret observed trends, measured data analyzed using an integ...

This study compared magnesium oxide and magnesium citrate with respect to in vitro solubility and in vivo gastrointestinal absorbability. The solubility of 25 mmol magnesium citrate and magnesium oxide was examined in vitro in solutions containing varying amounts of hydrochloric acid (0-24.2 mEq) in 300 ml distilled water intended to mimic achlorhydric to peak acid secretory states. Magnesium o...

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evaluation of magnesium levels in serum and cerebrospinal fluid of patients with febrile convulsion (fc) hospitalized in bahrami hospital in tehran in 2010-2011. in the past, decreased levels of magnesium in serum and csf of patients with fc were reported. the purpose of this study was to identify the possible role of magnesium in febrile seizures in children. identifying this condition, we may...

Wet-kneaded silica–magnesia is a benchmark catalyst for the one-step ethanol-to-butadiene Lebedev process. Magnesium silicates, formed during wet kneading, have been proposed as active sites butadiene formation, and their properties are mainly explained in terms of ratio acid base sites. However, mechanism formation reactivity not yet fully established. Here we show that magnesium silicates by ...

1. In eight patients being treated by chronic dialysis the relation of magnesium metabolism to the magnesium concentration of the dialysate was investigated. During four periods of 2-6 weeks the magnesium concentrations of the dialysis fluid were 0'44±0'15 mg/IOO ml, 0'70±0'24 mg/IOO ml, 1'83±0'18 mg/IOO ml and 1'97±0'21 mg/IOO ml. 2. During all periods the concentration of plasma magnesium and...

In the following review, we evaluated the current literature and evidence-based data on transdermal magnesium application and show that the propagation of transdermal magnesium is scientifically unsupported. The importance of magnesium and the positive effects of magnesium supplementation are extensively documented in magnesium deficiency, e.g., cardiovascular disease and diabetes mellitus. The...