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白云鄂博铁矿是我国主要矿藏之一,它含稀士、Nb、Mn、P等元素,使钢包铁水及积存废平炉渣均含Nb。为解决废渣回收Nb和Mn,通常从铁水提Nb或连续提Nb及从平炉渣提Nb,使Nb、Mn富集。再用此渣为原料炼成Nb-Mn-Fe,以便用于生产含Nb高强度钢等产品。而Nb渣是中间产品。成分复杂且波动很大,要求全分析。用化学法分析SiO_2、Nb_2O_5等元素手续繁琐、耗时多,而荧光X射线分析前处理简单、分析迅速,因此我们应用PW1600多道X光荧光光谱仪开展了铌渣中各元素的分析研究。采用铂-黄坩埚熔融技术,通过熔剂稀释作用有效地减弱了铌渣样品的粒度影响和共存元素
The Bayan Obo Iron Ore is one of the main mineral deposits in China. It contains elements such as rare earth, Nb, Mn and P, which make the ladle molten iron and the accumulated waste slag contain Nb. In order to solve the problem of recovering Nb and Mn from waste slag, Nb and Mn are usually enriched by adding Nb or adding Nb continuously from hot metal and extracting Nb from flat slag. And then use this slag as raw material into Nb-Mn-Fe, so that for the production of Nb-containing high-strength steel and other products. Nb slag is an intermediate product. The composition is complex and volatile, requiring full analysis. Chemical analysis of SiO_2, Nb_2O_5 and other elements of the procedure is cumbersome and time-consuming, while the pretreatment of fluorescence X-ray analysis is simple and rapid analysis, so we use PW1600 multi-channel X-ray fluorescence spectrometry niobium in the analysis of the elements. Using the platinum-yellow crucible melting technique, the effect of grain size and the coexistence of niobium slag samples are effectively reduced by flux dilution