Thermal transformations of (NH4, Cs)-clinoptilolite with compositions in between the end-members
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DOI: 10.1016/j.micromeso.2017.09.008
Abstract: Abstract A powder containing about 90% of clinoptilolite in ammonium form, previously employed in a study concerning the thermal transformations of NH4-clinoptilolite, was used to prepare three samples with the following Cs+/NH4+ ratios: 0.51; 1.16;… read more here.
Keywords: clinoptilolite compositions; glass; compositions end; transformations nh4 ... See more keywords
Solid-state thermal transformations in mixtures of platinum(II) tetraammine with ammonium chromate and ammonium dichromate
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DOI: 10.1134/s0020168517100065
Abstract: Thermal transformations of 3[Pt(NH3)4]Cl2–(NH4)2CrO4 (I) and 3[Pt(NH3)4]Cl2–2(NH4)2Cr2O7 (II) mixtures in a solid state have been studied by thermal analysis and mass spectrometry in an inert (Ar) atmosphere and air at temperatures from 40 to 550°C.… read more here.
Keywords: solid state; transformations mixtures; state thermal; ammonium ... See more keywords
Influence of Asphaltenes on the Direction of Thermal Transformations of Heavy Oil Hydrocarbons
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DOI: 10.1134/s0965544120020103
Abstract: Abstract Thermal transformations of asphaltenes and oils isolated from heavy petroleum of the Usa oilfielb (Timan–Pechora oil-and-gas basin) have been studied, as well as their interplay during thermal treatment. The thermolysis has been performed in… read more here.
Keywords: thermal transformations; asphaltenes direction; thermolysis; direction thermal ... See more keywords
Thermal transformations of gamma alumina with phosphorus oxide surface nanostructures
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DOI: 10.1134/s1070427217050032
Abstract: Differential scanning calorimetry, thermogravimetry, and X-ray diffraction analysis were used to study the fundamental aspects of structural-chemical transformations occurring under the action of temperature in the range 50–1530°C in the system constituted by alumina core… read more here.
Keywords: surface; gamma alumina; phosphorus; phosphorus oxide ... See more keywords