PACS中铝水解形态分布

采用A1-Ferron逐时络合比色法研究了PACS中铝水解形态分布随熟化时间的变化,考察了在不同熟化时间内,碱化度(B)Al~(3+)/SO_4~(2-)摩尔比和稀释作用对铝水解形态分布的影响。实验结果表明,熟化时间及稀释作用对铝水解形态分布影响不大;碱化度(B)及Al~(3+)/SO_4~(2-)摩尔比对铝水解形态分布有影响,Al_a含量随着碱化度(B)的升高而降低,Al_b和Al_c的含量随着碱化度(B)的升高而增加Al~(3+)/SO_4~(2-)摩尔比越小,则Al_b的含量就越小,而Al_c含量就越高。

STUDY ON THE DISTRIBUTION OF ALUMINUM SPECIES OF PACS

Effect of aging time on the distribution of aluminum species of PACS was studied by using Al-Ferron timed complex colorimetric method. Effects of basicities(B),. Al3+/ SO42- molar ratios and dilution under the condition of different aging times on the distribution of aluminum species of PACS were also investigated. The experimental results show that aging time and dilution affect the distribution of aluminum species of PACS to a small extent. The distribution of aluminum species of PACS is influenced by basicities and Al3+/SO42- molar ratios. The proportion of Ala decreases with the increases of basicity and the proportions of Alb and Alc increase with the increase of basicity. The lower the molar ratio of A13+/SO42- , the lower the proportion of Alb and the higher the proportion of Alc.