摘要
为综合利用开发硼铁矿资源，模拟硼铁矿高温选择性还原－熔融分离铁硼工艺的渣组成，用化学试剂合成配制Ｂ２Ｏ３－ＭｇＯ－ＳｉＯ２－Ａｌ２Ｏ３－ＣａＯ渣样，在ＺＣ－１６００型高温综合测试仪上，用双柱联称法同时测定熔渣的密度及表面张力。结果表明：在１４６０～１５００℃密度为２．５±０．５ｇ·ｃｍ－３表面张力为０．４～０．６Ｎ·ｍ－１。其密度及表面张力均随渣中ＭｇＯ含量的增加，或随ＳｉＯ２量的减少而增大，随温度的提高而变小。
In order to utilize the resource of ludwigite, a separation art was simulated.The density and surface tension were measured by the method of double-cylinder continuous measurement on the ZC-1600 multifunctional unit for high temperatures.Slags of B2O3 -MgO-SiO2 -Al2O3 -CaO system used were prepared with chemical reagents.The results show that the density varied in the range of 2.5 ± 0.5gcm-3 at 1460 to 1500℃,and surface tension in the range of 0.4 ～ 0.6Nm-1. The density and surface tension increased with increasing quantity of MgO in the slag or with decreasing quantity of SiO2,and decreased as the temperature increased.
出处
《有色金属》
CSCD
1996年第1期49-53,共5页
Nonferrous Metals
基金
国家自然科学基金
关键词
表面张力
密度
硼铁矿
熔渣
boron-rich slag
surface tension
density
