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Zeolite synthesis in basic media using expanded perlite and its application in Rhodamine B adsorption
(Elsevier BV, 2018-09-15)
Experimental Analysis and Modeling of a Stormwater Perlite Filter
(WATER ENVIRONMENT FEDERATION, 2008)
This paper presents the study of a mixed porous media composed of expanded perlite and a nonwoven needle-punched geotextile used to reduce the suspended solids load and concentration in urban runoff. Laboratory procedures ...
Surface modifications of Volcanic Glasses (Perlites) by water vapor
(Planta Piloto de Ingeniería Química, 2003-12)
Hydrothermal treatments on expanded volcanic glasses (perlites) were studied. The main objective of this paper is to obtain an activated surface able to interact with specific chemical substances. The above mentioned ...
Modification and characterization of natural aluminosilicates, expanded perlite, and its application to immobilise α – amylase from A. oryzae
(Elsevier Science, 2016-05)
The aim of this study was to modify natural silicoaluminates as expanded perlite (EP) through simple and inexpensive treatments in order to get a greater reactivity of surface and immobilise α-amylase from A. oryzae by ...
Estudo termoanalítico da perlita hidrofobizada com óleo de linhaça
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em QuímicaFísico-Química; Química, 2010-01-21)
In this work, expanded perlite, a mineral clay, consisting of SiO2 and Al2O3 in
the proportions of 72.1 and 18.5%, respectively, was used as an adsorbent for oil in
its pure expanded form as well as hydrofobized with linseed ...
Green synthesis of ZSM-5 zeolite prepared by hydrothermal treatment of perlite: Effect of the chemical composition and characterization of the product
(American Scientific Publishers, 2014-06)
We studied the influence of the chemical composition of the starting synthesis gel (SiO2/Al2O3, H2O/SiO2, amount of seed and pH) on the preparation of ZSM-5 zeolite by hydrothermal treatment of expanded perlite. Gels with ...
The effect of mesoporosity in the reaction of vinyl acetate and isoamyl alcohol catalyzed by H-ZSM-5 zeolites based on natural Perlite
(Elsevier Science, 2020-07-25)
Diverse ZSM-5 zeolites having a dual porosity and different acidic properties have been prepared using natural Perlite as source of SiO2 and Al2O3. Two traditional methodologies were selected to generate hierarchical ...
Self-compacting mortars with mineral additions: Perlite and limestone filler
(Pontificia Universidad Católica Chile, 2021-12)
With the increasing infrastructure and the need for eco-sustainable alternatives, the concrete industry has motivated to look for supplementary cementitious materials especially those generated from waste. The advantages ...