刘红盼,黄小凤,马丽萍,蒋明,李国标,陈丹莉

• 1:昆明理工大学环境科学与工程学院
• 2:云南农业大学资源与环境学院

摘要(Abstract)：

为研究利用自然冷却态黄磷炉渣制备微晶玻璃过程中所产生的污染过程,利用Factsage6.4热力学软件并结合自然冷却态黄磷炉渣的化学成分分析结果,计算自然冷却黄磷炉渣制备CaO-Al_2O_3-SiO_2系微晶玻璃时有害组分As、F、P、S 4种元素随温度变化以不同形态存在的规律。结果表明,在自然冷却黄磷炉渣加热至熔融状态过程中,炉渣中As和S元素逐渐达到热力学平衡状态,而F和P则需要更高温度。在高温状态下,体系中S主要以气相SO_2和SO_3存在,P从固态氟磷灰石(Ca_(10)(PO_4)_6F_2)转变为熔融态磷酸钙(Ca_3(PO_4)_2),As存在形态由固态砷酸钙(Ca_3(AsO_4)_2)向气相AsF_3(87.72%)和液态As_2O_3渣相转变,F则以熔融态CaF_2(64.88%)、MgF_2(11.34%)和气相SiF_4存在。并对As元素的迁移转化进行了试验验证,试验测得的结果和理论计算结果有较好的相关性。

关键词(KeyWords)： 自然冷却态黄磷炉渣;Factsage;微晶玻璃;迁移;转化

Abstract:

Keywords:

基金项目(Foundation): 昆明理工大学校人培基金(KKZ3201422009);; 分析测试基金(20150471)

作者(Author): 刘红盼,黄小凤,马丽萍,蒋明,李国标,陈丹莉

DOI: 10.13289/j.issn.1009-6264.2016.07.037

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