Methodology for the study of the dolomite porosity in essay of interrupted sulfation

Quimica nova

Milioli, Fernando E.¹  Crnkovic, Paula M.¹  Ávila, Ivonete¹ 

[1] Universidade de São Paulo, São Carlos, Brasil

关键词: sulfation;    limestone;    porosimetry.;   

DOI  :  10.1590/S0100-40422010000800021

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The aim of thiswork is to propose a methodology to evaluate the evolution of the pore blockageof limestone during the sulfation reaction. The experiments were performed fora national limestone (dolomite) with average particle size of 545 μmin interrupted sulfation tests were conducted at seven different times and atthree different temperatures of the process. The empirical data were obtainedfrom porosimetry tests to establish BET surface area, volume and average sizeof pore and distribution of pore sizes of the sulfated samples. Thermogravimetrictests were performed to evaluate the preparation methodology of the samplesused in the porosimetry tests.

【 授权许可】

CC BY