冶金分析
冶金分析
야금분석
METALLURGICAL ANALYSIS
2010年
2期
51-54
,共4页
高炉除尘灰%熔融%X射线荧光光谱法
高爐除塵灰%鎔融%X射線熒光光譜法
고로제진회%용융%X사선형광광보법
blast furnace dust%fusion%X-ray fluorescence spectrometry
试样在高温下灼烧消除游离碳的影响,然后用熔融法制备样片,X射线荧光光谱法测定高炉除尘灰试样中TFe、SiO_2、CaO、MgO含量.使用铁矿石标准样品建立校准曲线,通过数学校正消除元素间的重叠和吸收-增强效应.本方法用于高炉除尘灰中4组分的测定,结果与湿法测试结果相符.对样品进行精密度试验,测得相对标准偏差在0.38%～5.0%间(n=7).
試樣在高溫下灼燒消除遊離碳的影響,然後用鎔融法製備樣片,X射線熒光光譜法測定高爐除塵灰試樣中TFe、SiO_2、CaO、MgO含量.使用鐵礦石標準樣品建立校準麯線,通過數學校正消除元素間的重疊和吸收-增彊效應.本方法用于高爐除塵灰中4組分的測定,結果與濕法測試結果相符.對樣品進行精密度試驗,測得相對標準偏差在0.38%～5.0%間(n=7).
시양재고온하작소소제유리탄적영향,연후용용융법제비양편,X사선형광광보법측정고로제진회시양중TFe、SiO_2、CaO、MgO함량.사용철광석표준양품건립교준곡선,통과수학교정소제원소간적중첩화흡수-증강효응.본방법용우고로제진회중4조분적측정,결과여습법측시결과상부.대양품진행정밀도시험,측득상대표준편차재0.38%～5.0%간(n=7).
The sample was ignited at high temperature to remove the influence of free carbon. The content of TFe, SiO_2, CaO and MgO in blast furnace dust sample was determined by X-ray fluorescence spectrometry in combination with fusion method. The calibration curves were established with standard iron ore samples. The spectral overlapping and absorption-enhancing effect among elements were eliminated by mathematic correction. This method had been applied to the determination of four components in blast furnace dust samples, and the results were accordant with those obtained by chemical method. The precision was alsb tested with the relative standard deviations (RSD) of 0.38%-5.0 % (n=7).
