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SM ISO690:2012 ZELENTSOV, Veaceslav, DATSKO, Tatiana. Active pore materials based on sludges of Cr-Ni alloy electrochemical machining. In: Moldavian Journal of the Physical Sciences, 2006, nr. 2(5), pp. 225-230. ISSN 1810-648X. |
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Moldavian Journal of the Physical Sciences | ||||||
Numărul 2(5) / 2006 / ISSN 1810-648X /ISSNe 2537-6365 | ||||||
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Pag. 225-230 | ||||||
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Physico-chemical and adsorption-structural properties of the Cr-Ni alloy product elec-
trochemical machining (EM) subjected to thermo treatment within temperature interval
100-950o
C are considered. Using X-rays diffraction and DTA data the original EM product
was established to be amorphous nickel hydroxide with little amount of nickel and iron oxides. Thermo treatment of the products leads to the changes both in their chemical and phase
composition and their adsorption-structural properties.
The isotherms of methanol adsorption-desorption by the products treated under different
conditions were constructed. The values of specific surface and adsorption pore volume of the
samples were calculated from the isotherm data. On the base of Ni-Cr alloy EM sludge new
various pore inorganic materials with different composition and crystal structure have been
obtained, which can be used as adsorbents for removing of different toxic admixtures from
water solutions and as catalysts in some chemical reactions at synthesis of some organic compounds. |
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