Zobrazeno 1 - 10
of 118
pro vyhledávání: '"C. Volzone"'
Publikováno v:
Materials Research, Vol 5, Iss 4, Pp 475-479 (2002)
N2 and CO2 gases adsorption by tetramethylammonium(TMA)-montmorillonites and hexadecylpyridinium(HDP)-montmorillonites was carried out using volumetric equipment at 25 °C and 0.1 MPa. The addition of organic compounds to montmorillonites was 1 and 4
Externí odkaz:
https://doaj.org/article/ee76aada636d43c18f2aa973c605ccda
Autor:
C. Volzone, L. B. Garrido
Publikováno v:
Cerâmica, Vol 48, Iss 307, Pp 153-156 (2002)
Retention of chromium (III) from a tanning wastewater by modified Al-bentonites was studied. One bentonite from San Juan province, Argentina, was used. Al-bentonite was prepared by contact of bentonite with hydrolyzed OH-Al solutions (0.10 M in Al) f
Externí odkaz:
https://doaj.org/article/17b650d2052142bcbf57fe23bba14c33
Publikováno v:
Cerâmica, Vol 47, Iss 304, Pp 208-211 (2001)
A ativação ácida de uma argila tem por finalidade aumentar as suas propriedades adsortivas e catalíticas. Nesse estudo, uma amostra de argila bentonítica, proveniente da Província de Mendoza (Argentina), foi ativada com diferentes concentraçõ
Externí odkaz:
https://doaj.org/article/53cf1c81938a44318c067f720c2a135e
Autor:
C. Volzone, L. B. Garrido
Publikováno v:
Cerâmica, Vol 47, Iss 301, Pp 4-8 (2001)
Rheological changes were found in smectite (Wyoming- and Cheto-type montmorillonites) suspensions after structural modifications. The effect of the particle size and Na+ exchange on the flow curves of 6% wt/wt suspensions of smectites with and withou
Externí odkaz:
https://doaj.org/article/2bb2c746dabc44c29fb09105d3af8d05
Publikováno v:
Materials Research, Vol 3, Iss 4, Pp 115-118 (2000)
Organo-clays were prepared by exchange cations of the montmorillonite with tetramethylammonium (TMA)- and hexadecylpyridinium (HDP)-chloride. Two different montmorillonite types were studied. Two amounts of each organic substances (1 and 4 cation exc
Externí odkaz:
https://doaj.org/article/418fe4ca8b094ba9b59cc68e61b935d7
Autor:
E. L. Tavani, C. Volzone
Publikováno v:
Cerâmica, Vol 45, Iss 295, Pp 133-136 (1999)
The adsorption of sulphuric acid on smectite from acidic aqueous solutions was studied. The amounts of cations dissolved in each equilibrium solution were determined by chemical analysis. Simultaneously, the original smectite and the smectite after e
Externí odkaz:
https://doaj.org/article/386583fcf48542e3a0ddd2b093fb73a2
Publikováno v:
Cerâmica, Vol 64, Iss 369, Pp 64-68
Abstract Beidellite clay mineral after intercalation of OH-Cr(III) species were thermally analyzed up to 1350 °C in oxygen and nitrogen atmospheres. OH-Cr-beidellite can be used as a pillared clay precursor for catalysis or as adsorbent applications
Externí odkaz:
https://doaj.org/article/293179c06fdb485aa6b88378ab1487db
Publikováno v:
Cerâmica, Vol 64, Iss 372, Pp 526-537
Abstract The aim of the present work was to study Argentinean natural clays with different modifications and their use as desiccants. To this end, bentonite clays collected from different regions were characterized and modified by heat treatment and
Externí odkaz:
https://doaj.org/article/d62991caddb740c1ba9c4958b1742a35
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 128:61-69
Aluminum-pillared montmorillonites are useful materials for their application as catalysts, adsorbents and ceramic composites. The precursor is a pillared montmorillonite that is not thermally stabilized. The precursor preparation methods, textural p
A polymeric Al-modified bentonite (B-OHAl) obtained by intercalation of OH-Al species was used as precursor for mullite-containing coatings. Raw clay and B-OHAl were characterized by X-ray fluorescence (XRF), Infrared spectroscopy (FTIR), X-ray diffr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90e6d2e57ca66baf3b762f079083c11b
https://www.sciencedirect.com/science/article/pii/S0169131717303952
https://www.sciencedirect.com/science/article/pii/S0169131717303952