Activation of a sepiolite with dilute solutions of HNO3 and subsequent heat treatments: III. Development of porosity-Reference-Cited by-同舟云学术

Activation of a sepiolite with dilute solutions of HNO3 and subsequent heat treatments: III. Development of porosity

Published:1981-12 Issue:4 Volume:16 Page:315-323
ISSN:0009-8558
Container-title:Clay Minerals
language:en
Short-container-title:Clay miner.

Author:

Rodríguez-Reinoso F.,Ramírez-Sáenz A.,López-González J. De D.,Valenzuela-Calahorro C.,Zurita-Herrera L.

Abstract

AbstractPorosity development in a sepiolite from Toledo, Spain, has been studied as a function of acid (0·25, 0·50, 0·75 and 1·0 m HNO3) and subsequent heat treatments (110–400°C). Adsorption isotherms of N2 at 77 K have been analysed by f-plot, t-plot, αs-plot and the Cranston & Inkley methods. Results are compared with those obtained on products heated without previous acid activation. Experimental conditions favouring porosity development are discussed.

Publisher

Mineralogical Society

Subject

Geochemistry and Petrology

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