无机盐工业 ›› 2021, Vol. 53 ›› Issue (5): 73-77.doi: 10.11962/1006-4990.2020-0366
收稿日期:
2020-08-13
出版日期:
2021-05-10
发布日期:
2021-05-12
通讯作者:
宁平
作者简介:
范天博(1976— ),男,博士,副教授,主要研究方向为无机化学工程;E-mail address: 基金资助:
He Liwei1,2,Zhou Xuejin2,3,Ning Ping2()
Received:
2020-08-13
Online:
2021-05-10
Published:
2021-05-12
Contact:
Ning Ping
摘要:
实验研究了模拟一氧化碳工业废气解毒的脱毒铬渣制备水泥矿物掺合料时,其添加比对胶砂试件抗压、抗折强度及凝结时间的影响,测定了试件中总铬(Cr)和六价铬Cr(Ⅵ)浸出浓度,并采用半动态浸出实验测定其有效扩散系数D和扩散因子L。结果表明,细磨后的脱毒铬渣符合水泥矿物掺合料的性能要求,随着添加比例的增加,胶砂凝结时间增加,抗压、抗折强度下降,但各实验组试件均达到C60的强度等级要求。试件中Cr(Ⅵ)和总Cr的D值达到10-10~10-9数量级,L值>9,迁移能力极低,证明制备矿物掺合料是一种安全有效的脱毒铬渣资源化处置方法。
中图分类号:
何力为,周学进,宁平. 一氧化碳脱毒铬渣制备水泥矿物掺合料[J]. 无机盐工业, 2021, 53(5): 73-77.
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