Influence of the addition of blast furnace slag to alkali-acti-2 vated mixtures based on natural zeolites

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62243136%3A_____%2F21%3AN0000017" target="_blank" >RIV/62243136:_____/21:N0000017 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2075-163X/11/12/1307/htm" target="_blank" >https://www.mdpi.com/2075-163X/11/12/1307/htm</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/min11121307" target="_blank" >10.3390/min11121307</a>

Result language

angličtina

Original language name

Influence of the addition of blast furnace slag to alkali-acti-2 vated mixtures based on natural zeolites

Original language description

This study focuses on a comparison of alkali-activated materials based on natural zeolites without and with the addition of blast furnace slag and their subsequent modification by acid leaching. The addition of slag to alkali-activated mixtures is generally used to increase the strength. The subsequent modification of its chemical, textural and mechanical properties by acid leaching makes this material usable in other industries, especially in the chemical industry. This study aimed to examine the influence of the addition of blast furnace slag to alkali-activated mixtures based on natural zeolites and observe the effect of subsequent acid leaching on the chemical, textural and mechanical properties and CO2 adsorption capacity of these materials. The modification of alkali-activated materials was carried out by acid leaching using 0.1 M HCl and then using 3 M HCl. The properties of these materials were determined using N2 physisorption, Hg porosimetry, XRF, XRD, DRIFT, TGA and strength measurements. The results showed that the addition of blast furnace slag significantly increased the cutting-edge strength of the obtained materials and affected the textural properties, especially in leached samples. The presence of blast furnace slag generated a higher proportion of mesopores, which are attributed to the presence of the calcium silicate hydrate (C–S–H) phase and are easily removed by leaching, as shown by the XRF results. The obtained data showed an improvement in properties and extension of the potential applicability of these materials in the chemical industry, especially for catalytic and adsorption applications.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

20400 - Chemical engineering

Project

<a href="/en/project/LM2018119" target="_blank" >LM2018119: Catalytic processes for efficient utilization of carbonaceous energy raw materials</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Minerals

ISSN

2075-163X

e-ISSN

2075-163X

Volume of the periodical

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Issue of the periodical within the volume

517c

Country of publishing house

CH - SWITZERLAND

Number of pages

19

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85119668386