Buscar

Mostrando ítems 1-10 de 188

Improving reactivity of fly ashes towards zeolite synthesis by using alkaline fusion pretreatments

Monzón, Jorge; Pereyra, Andrea; Basaldella, Elena (International Zeolite Conference, 2018)

The role of alkaline activation in the structural transformations of aluminosiliceous industrial wastes towards zeolite production

Monzon, Jorge Daniel; González, Maximiliano; Mardones, Lucas Emanuel; Conconi, María Susana; Pereyra, Andrea Marisa; Basaldella, Elena Isabel (Elsevier Science, 2019-12)

The zeolitization of two selected aluminosiliceous industrial wastes, a fly ash and an exhausted Fluid Catalytic Cracking (FCC) catalyst, was studied. Solid products enriched in zeolite A were successfully synthesized by ...

Crystallization of low silica Na-A and Na-X zeolites from transformation of kaolin and obsidian by alkaline fusion.

Ríos, Carlos A.; Williams, Craig D.; Castellanos, Oscar M. (2013-09-20)

En el presente estudio se llevó a cabo la síntesis de zeolitas Na-A y Na-X a partir de caolín y obsidiana, respectivamente, siguiendo el método de fusión alcalina. Los materiales de partida fueron activados hidrotérmicamente ...

Effects of transmembrane potential and pH gradient on the cytochrome c-promoted fusion of mitochondrial mimetic membranes

Kawai, Cintia; Pessoto, Felipe S. [UNIFESP]; Graves, Catharine V.; Carmona-Ribeiro, Ana Maria; Nantes, Iseli L. (Springer, 2013-08-01)

The present study investigated the effects of Delta I and Delta pH (pH gradient) on the interaction of cytochrome c with a mitochondrial mimetic membrane composed of phosphatidylcholine (PC), phosphatidylethanolamine (PE), ...

Geochemistry of mid- upper eocene intra-continental alkaline volcanic range, south part of central alborz mountains, north of Iran.Geoquímica del rango volcánico alcalino del eoceno medio-superior, parte sur de las montañas centrales de Alborz, norte de Irán

Abbaspour Shirjoposht, Leila; Sheikh Zakariaee, Sayed Jamal al-Din; Reza Ansari, Mohammad; Hashem Emami, Mohammad (Nexo, 2020)

CONTEMPORANEOUS ERUPTIONS OF CALC-ALKALINE AND ALKALINE MAGMAS ALONG THE VOLCANIC FRONT OF THE MEXICAN VOLCANIC BELTCONTEMPORANEOUS ERUPTIONS OF CALC-ALKALINE AND ALKALINE MAGMAS ALONG THE VOLCANIC FRONT OF THE MEXICAN VOLCANIC BELT

Luhr, J. F.; Department of Geology, Franklin and Marshall College, Lancaster, PA 17604, U. S. A.; E.Carmichael., I. S.; Department of Geology and Geophysics, University of California, Berkeley, CA 94720, U. S. A. (Instituto de Geofísica, 2012)

Determinação de elementos traços em carbeto de boro de alta pureza por SS-GFAAS e comparação estatística com resultados de diferentes procedimentos de decomposição

Müller, Edson Irineu (Universidade Federal de Santa MariaBRQuímicaUFSMPrograma de Pós-Graduação em Química, 2008-02-18)

In this work a procedure is proposed for determination of Al, Cr, Cu, Mg, Mn and Ni in boron carbide samples by solid sampling graphite furnace atomic absorption spectrometry (SS-GFAAS). The samples, ESK and PL360, ...

Volatile elements in alkaline and calc-alkaline rocks from the Colima graben, Mexico: Constrains on their genesis and evolutionVolatile elements in alkaline and calc-alkaline rocks from the Colima graben, Mexico: Constrains on their genesis and evolution

Macías, José Luís; Capaccioni, Bruno; Conticelli, Sandro; Martini, Marino; Rodríguez, Sergio (Instituto de Geofísica, 2013)

A comparative study of two aging and fusion methods in the synthesis of zeolitic materials from natural clinker

Lizcano Cabeza, Jeimer Alexander; Ávila Ascanio, Luis Fernando; Ríos-Reyes, Carlos Alberto; Vargas Fiallo, Luz Yolanda (Universidad Nacional de Colombia (Sede Medellín). Facultad de Minas., 2015-09-01)

A sample of Colombian natural clinker was evaluated as a raw material in a laboratory-scale synthesis of zeolitic materials using two methods of alkaline fusion, followed by two aging methods, and finally hydrothermal ...

GEOCHEMICAL CONSTRAINTS ON THE ORIGIN OF CALCALKALINE AND ALKALINE MAGMAS OF THE EASTERN TRANS-MEXICAN VOLCANIC BELTGEOCHEMICAL CONSTRAINTS ON THE ORIGIN OF CALCALKALINE AND ALKALINE MAGMAS OF THE EASTERN TRANS-MEXICAN VOLCANIC BELT

Besch, Th.; Universität Mainz, Institut für Geowissenschaften, Lehreinheit Mineralogie, 6500 Mains (FRG); W. Negendank, J. F.; Universität Trier, Abt. Geologie, 5500 Triet (FRG); Emmermann, R.; Universität Giessen, Institut für Geowissenschaften und Lithosphärenforschung, 6300 Giessen (FRG); J. Tobschall, H.; Universität Hannover, Institut für Mineralogie, 3000 Hannover (FRG) (Instituto de Geofísica, 2012)

1
2
3
4
. . .
19