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HPA 12-tungstosilicoheteropolyacid (H 4 SiW 12 O 40 ) The hydrolysis of DME, the limiting step in the overall SRDME process, is equilibrium controlled and limited by a low equilibrium constant (with

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Wang SG Qu LY ( 2002 ) The solid-state synthesis of polyaniline/H 4 SiW 12 O 40 materials . Synth Met 129 : 187 – 192 http://dx.doi.org/10.1016/S0379

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( C c ) 0.89 Unified Soil Classification System (USCS) Poorly-graded sand (SP) ASTM D422 and ASTM D2487 Permeability coefficient, k (cm sec −1 ) 5.5∙10 −3 ASTM D2434 Dry friction angle, Ø (°) 40° Direct shear test ASTM 3080 Saturated friction angle

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to the prior pozzolanic activity mediated by the 8.0% and 11.50% Al 2 O 3 r− content, respectively, in these blends. Indeed, the activity attributed to the respective proportions of SiO 2 r− (%) [ 5 ] in the three pozzolans, i.e., O , 40.7%; A , 37

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Journal of Thermal Analysis and Calorimetry
Authors:
V. Sydorchuk
,
W. Janusz
,
S. Khalameida
,
E. Skwarek
,
J. Skubiszewska-Zięba
,
R. Leboda
, and
V. Zazhigalov

. Synthesis, physical-chemical and catalytic properties of mixed compositions Ag/H 3 PMo 12 O 40 /SiO 2 J Therm Anal Calorim. 2011 . doi: 10.1007/s10973-011-1430-z . 28. Tarafdar , A , Panda

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(7.2 g, 28 mmol) in Et 2 O (40 mL) was added dropwise n -BuLi (12 mL, 30 mmol, 2.5 M solution in hexane) at 298–300 K. The reaction mixture was stirred for another 1.5 h at room temperature. The mixture was then heated to reflux, followed by dropwise

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. Oxalate precursor Ca 3 [Bi 6 O 6 (C 2 O 4 ) 4 (OH) 3 NO 3 ]0.5H 2 O40–200 0.5 0.46 H 2 O Endoth./50 °C Ca 3 Bi 6 O

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Reaction Kinetics, Mechanisms and Catalysis
Authors:
Cleanio L. Lima
,
Hélvio S. A. de Sousa
,
Santiago J. S. Vasconcelos
,
Josué M. Filho
,
Alcemira C. Oliveira
,
Francisco F. de Sousa
, and
Alcineia C. Oliveira

. Yori , JC , Grau , JM , Benítez , VM , Sepúlveda , J 2005 Hydroisomerization-cracking of n-octane on heteropolyacid H 3 PW 12 O 40 supported on ZrO 2 , SiO 2 and carbon: effect of Pt incorporation on catalyst performance . Appl Catal A Gen

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], methyltrioxorhenium [ 36 ], V, Bi doped heteropolyacids (H 3 PMo 12 O 40 ) [ 37 ] for the oxidation of sulfides to sulfoxides or sulfones, depending on the conditions. However, the problem with the use of transition metal catalysts in oxidations with H 2 O 2 is

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