نتایج جستجو برای: carbonate platform
تعداد نتایج: 167016 فیلتر نتایج به سال:
Conversion of glycerol from biodiesel production to glycerol carbonate was studied by esterification with dimethyl carbonate in a non-catalytic supercritical condition. It was found that in a non-catalytic supercritical condition, glycerol at higher purity gave higher yield of glycerol carbonate at 98 wt% after reaction at 300 °C/20-40 MPa/15 min. The yield of glycerol carbonate was observed to...
BACKGROUND Sevelamer carbonate is an improved, buffered form of sevelamer hydrochloride developed for the treatment of hyperphosphataemia in CKD patients. Sevelamer carbonate formulated as a powder for oral suspension presents a novel, patient-friendly alternative to tablet phosphate binders. This study compared the safety and efficacy of sevelamer carbonate powder with sevelamer hydrochloride ...
Limestones designated the Štramberk-type are most common carbonate exotic clasts (exotics) embedded in uppermost Jurassic–Miocene flysch deposits of Polish Outer Carpathians. About 80% stratigraphically determinable exotics from Silesian, Sub-Silesian and Skole units (nappes) Tithonian (mostly)–Berriasian (sporadically Valanginian) age. A study these revealed eight main facies types: coral-micr...
Authigenic carbonate was recently invoked as a third major global carbon sink in addition to primary marine carbonate and organic carbon. Distinguishing the two carbonate sinks is fundamental to our understanding of Earth's carbon cycle and its role in regulating the evolution of atmospheric oxygen. Here, using microscale geochemical measurements of carbonates in Early Triassic strata, we show ...
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