ChemInform Abstract: Solid-State Reaction of the Lead Tetraacetate-Metal Halide System with Naphthalene under Mechanical Activation.

ChemInform ◽  
2010 ◽  
Vol 29 (40) ◽  
pp. no-no
Author(s):  
G. I. NIKISHIN ◽  
L. L. SOKOVA ◽  
V. D. MAKHAEV ◽  
L. A. PETROVA ◽  
A. V. IGNATENKO ◽  
...  
Keyword(s):  
Solid State ◽  
Mechanical Activation ◽  
Solid State Reaction ◽  
Lead Tetraacetate ◽  
Metal Halide ◽  
Halide System

solid-state reaction of a lead tetraacetate-metal halide system with naphthalene under mechanical activation

1998 ◽  
Vol 47 (7) ◽  
pp. 1353-1355
Author(s):  
G. I. Nikishin ◽  
L. L. Sokova ◽  
V. D. Makhaev ◽  
L. A. Petrova ◽  
A. V. Ignatenko ◽  
...  
Keyword(s):  
Solid State ◽  
Mechanical Activation ◽  
Solid State Reaction ◽  
Lead Tetraacetate ◽  
Metal Halide ◽  
Halide System

Oxidation of aliphatic alcohols with the lead tetraacetate—metal halide system under mechanical activation

2000 ◽  
Vol 49 (11) ◽  
pp. 1842-1845 ◽  
Author(s):  
N. I. Kapustina ◽  
V. D. Makhaev ◽  
A. P. Borisov ◽  
G. I. Nikishin
Keyword(s):  
Mechanical Activation ◽  
Lead Tetraacetate ◽  
Aliphatic Alcohols ◽  
Metal Halide ◽  
Halide System

Mechanothermal Synthesis of SrSnO3

2014 ◽  
Vol 69 (3) ◽  
pp. 313-320 ◽  
Author(s):  
Vittorio Berbenni ◽  
Chiara Milanese ◽  
Giovanna Bruni ◽  
Alessandro Girella ◽  
Amedeo Marini
Keyword(s):  
Solid State ◽  
Mass Loss ◽  
Mechanical Activation ◽  
Solid State Reaction ◽  
Thermal Activation ◽  
Dsc Analysis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Annealing Experiments ◽  
Physical Mixtures

The synthesis of strontium metastannate (SrSnO3) has been performed by coupling mechanical activation with thermal activation of SnC2O4-SrCO3 mixtures. The solid-state reaction has been studied by TG-DSC analysis and powder X-ray diffraction. By annealing experiments performed on physical mixtures (no mechanical activation) it has been assessed that the formation of SrSnO3 occurs through the intermediate Sr2SnO4 and is complete only after annealing at 1400 °C. By performing the annealing experiments on activated mixtures it has been established that the formation of SrSnO3 takes place directly at temperatures between 800 and 1000 °C. The SrSnO3 samples obtained at 800 and 900 °C show, by TG analysis, mass loss processes that suggest that SrSnO3 obtained at these temperatures absorbs H2O and CO2 from the air so that its use as gas sensor can be envisaged. This is no longer true for the sample obtained at 1000 °C or above

Effect of Mechanical Activation on the Synthesis of Ba-Celsian and Sr-Celsian using Precursor Mixtures Containing Coal Fly Ash

2016 ◽  
Vol 1812 ◽  
pp. 89-94
Author(s):  
Claudia M. Lopez-Badillo ◽  
Jorge López-Cuevas ◽  
Carlos A. Gutiérrez-Chavarría ◽  
José L. Rodríguez-Galicia ◽  
Elia M. Múzquiz-Ramos
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Solid State ◽  
Mechanical Activation ◽  
Solid State Reaction ◽  
Milling Time ◽  
Coal Fly Ash ◽  
Raw Material ◽  
Attrition Mill ◽  
Sintered Materials

ABSTRACTBaAl2Si2O8 and SrAl2Si2O8 were synthesized by solid-state reaction of stoichiometric mixtures of either BaCO3 or SrCO3 with coal fly ash and Al2O3. The mixtures were mechanically activated in an attrition mill for up to 12 h and then reaction-sintered at 900-1300 °C, aiming to promote the formation of BaAl2Si2O8 and SrAl2Si2O8 as well as the conversion from their hexagonal (Hexacelsian) into their monoclinic (Celsian) forms, which is associated with improved mechanical properties in the sintered materials. Especially in the case of SrAl2Si2O8, the formation of Celsian was favored at relatively low sintering temperatures by increasing milling time. Although only the SrAl2Si2O8 composition was fully converted into Celsian, the Hexacelsian to Celsian conversions obtained for the mechanically-activated BaAl2Si2O8 composition were significantly higher than those previously reported in the literature for this compound. This could be attributed to the use of coal fly ash as raw material, which contains mineralizers that promote the mentioned conversion.

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