Effect of the microstructure on the properties of synthetic aluminosilicate articles

Refractories ◽  
1981 ◽  
Vol 22 (11-12) ◽  
pp. 632-635
Author(s):  
T. I. Nazarova ◽  
T. S. Ignatova ◽  
V. A. Perepelitsyn ◽  
T. N. Kudryavtseva
Keyword(s):  
Synthetic Aluminosilicate

scholarly journals The Simultaneous Removal of Zinc and Cadmium from Multicomponent Aqueous Solutions by Their Sorption onto Selected Natural and Synthetic Zeolites

Minerals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 343 ◽  
Author(s):  
Bożena Kozera-Sucharda ◽  
Barbara Gworek ◽  
Igor Kondzielski
Keyword(s):  
Aqueous Solutions ◽  
Low Cost ◽  
Environmental Pollutants ◽  
Chemical Properties ◽  
Simultaneous Removal ◽  
Physico Chemical ◽  
Synthetic Zeolites ◽  
Sorption Mechanisms ◽  
Synthetic Aluminosilicate ◽  
Natural And Synthetic

Natural and synthetic aluminosilicate minerals, in particular zeolites, are considered to be very useful in remediation processes, such as purification of waters polluted with heavy metals. That is due to their unique and outstanding physico-chemical properties, rendering them highly efficient, low-cost, and environmentally friendly sorbents of various environmental pollutants. The aim of this study was to examine the sorption capacity of four selected zeolites: A natural zeolite and three synthetic zeolites (3A, 10A, and 13X), towards zinc and cadmium present in multicomponent aqueous solutions, in relation to identified sorption mechanisms. It was stated that synthetic zeolites 3A and 10A were the most efficient in simultaneous removal of zinc and cadmium from aqueous solutions. Additionally, zeolite 10A was demonstrated to be the mineral best coping with prolonged pollution of water with those elements. The mechanism of sorption identified for tested minerals was physisorption.

Synthetic aluminosilicate based geopolymers – Second generation geopolymer HPLC stationary phases

2019 ◽  
Vol 1081 ◽  
pp. 209-217
Author(s):  
Nimisha Thakur ◽  
M. Farooq Wahab ◽  
Durga D. Khanal ◽  
Daniel W. Armstrong
Keyword(s):  
Second Generation ◽  
Stationary Phases ◽  
Synthetic Aluminosilicate

Alkaline activation of synthetic aluminosilicate glass

2014 ◽  
Vol 40 (4) ◽  
pp. 5547-5558 ◽  
Author(s):  
I. Garcia-Lodeiro ◽  
A. Fernández-Jimenez ◽  
P. Pena ◽  
A. Palomo
Keyword(s):  
Aluminosilicate Glass ◽  
Alkaline Activation ◽  
Synthetic Aluminosilicate

scholarly journals Phase evolution of Na2O–Al2O3–SiO2–H2O gels in synthetic aluminosilicate binders

2016 ◽  
Vol 45 (13) ◽  
pp. 5521-5535 ◽  
Author(s):  
Brant Walkley ◽  
Rackel San Nicolas ◽  
Marc-Antoine Sani ◽  
John D. Gehman ◽  
Jannie S. J. van Deventer ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Phase Evolution ◽  
Mas Nmr ◽  
Synthetic Aluminosilicate

Nanostructural evolution of Na2O–Al2O3–SiO2–H2O gels in synthetic aluminosilicate binders investigated by solid state 29Si, 27Al and 23Na MAS NMR spectroscopy.

Thin section microanalysis of zeolite Y

1984 ◽  
Vol 42 ◽  
pp. 650-651
Author(s):  
J. B. Hall
Keyword(s):  
Electron Microscopy ◽  
Thin Section ◽  
Zeolite Y ◽  
Catalyst Preparation ◽  
Unit Cell ◽  
Zeolite X ◽  
Thin Sections ◽  
X Ray ◽  
Synthetic Aluminosilicate ◽  
Individual Particles

Zeolite Y, a remarkably stable zeolite widely used in catalyst formulations, is a synthetic aluminosilicate with the faujaslte structure. It is distinguished from zeolite X by having fewer Al atoms per unit cell and greater stability. Y can be made even more stable by further reducing the number of Al atoms per unit cell to form ultrastable Y (U.S.Y). Because the Al/Si ratio of a zeolite is an important parameter affecting its properties, knowledge of the Al and Si distribution across individual particles is also important. A study of that distribution was therefore undertaken by electron microscopy. A catalyst preparation of 40% U.S.Y and 60% alumina was also analyzed.The samples were prepared for electron microscopy by embedding the particles in epoxy and cutting thin sections using an ultramicrotome. The thin section microanalysis was performed on a Philips 400T electron microscope equipped with a Tracor Northern TN2000 x-ray analyzer with digital beam control.

Inhibition of Thromboplastin Activity in Plasma by Aluminosilicate Treatment

1972 ◽  
Vol 28 (01) ◽  
pp. 135-143
Author(s):  
Theodore Chenkin ◽  
Doris Moses ◽  
James M. Perel ◽  
Murray Weiner
Keyword(s):  
Ion Exchange ◽  
Gamma Globulin ◽  
Time Change ◽  
Exchange Property ◽  
Heat Inactivation ◽  
Clotting Time ◽  
Clotting Factors ◽  
Exchange Agent ◽  
Synthetic Aluminosilicate

SummaryPermutit, a synthetic aluminosilicate is an ion exchange agent which, on mixing with plasma produces a prolongation of the clotting time, change in pH, and removal of some gamma globulin and alpha and beta lipoprotein. Heat-inactivation of the ion-exchange property of Permutit also eliminates these effects on plasma. Some of these changes also occur on mixing Permutit with extrinsic thromboplastins.The evidence presented suggests that the prolonged clotting time is not due to the removal of one or more clotting factors from plasma treated with Permutit.It is concluded that the prolongation of clotting time produced by Permutit treatment of plasma is due to the formation or release of a potent thromboplastin inhibitor.

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