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钠化钒渣中几种水溶性钒酸钠物相
朱秀松; 付玉珍; 周丽珍
1984
Source Publication化工冶金
Issue03Pages:55-61
Abstract本文叙述了使用差热分析、X射线衍射、偏光显微镜和扫描电子显微镜等方法对钠化钒渣中几种钒酸钠物相分析研究的结果。水溶性钒酸钠有三种,偏钒酸钠—NaVO_3、焦钒酸钠—Na_4V_2O_7、正钒酸钠—Na_3VO_4。钠化钒渣中最主要的钒酸钠是正钒酸钠和少量的焦钒酸钠。焦正钒酸钠的水溶性较偏钒酸钠好。为了获得较纯的各种钒酸钠单矿物,用化学纯的V_2O_5、Na_2CO_3试剂,按照Na_2O/V_2O_5克分子比为1:1、2:1、8:1的配比,在高温差热分析上加热至900℃合成了偏、焦、正钒酸钠矿物,取得了三种矿物的热化学数据,对三种矿物的晶体结构和晶体光性进行分析测定。偏钒酸钠晶体呈柱状和板状,淡黄色,N_p1.74,N_m、N_p>1.74,二轴晶正光性。焦钒酸钠晶体呈羽扇状和束状,淡黄至白色,N_p=1.630±0.015,N_m=1.635,N_g=1.643±0.003二轴晶正光性。正钒酸钠晶体呈树枝状和粒状等,黄褐色,等轴晶系,光性异常,N=1.610±0.010。焦、正钒酸钠吸附水或溶水后重结晶可形成Na_4V_2O_7·12H_2O、Na_3VO_4·12H_2O、Na_3VO_4·16H_2O等多种含水相。
Keyword正钒酸钠 钒渣 钠化 二轴晶 光性异常 克分子比 差热分析 偏光显微镜 等轴晶系 化学纯
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/9696
Collection研究所(批量导入)
Recommended Citation
GB/T 7714
朱秀松,付玉珍,周丽珍. 钠化钒渣中几种水溶性钒酸钠物相[J]. 化工冶金,1984(03):55-61.
APA 朱秀松,付玉珍,&周丽珍.(1984).钠化钒渣中几种水溶性钒酸钠物相.化工冶金(03),55-61.
MLA 朱秀松,et al."钠化钒渣中几种水溶性钒酸钠物相".化工冶金 .03(1984):55-61.
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