山东冶金
山東冶金
산동야금
SHANDONG METALLURY
2013年
5期
44-46
,共3页
谭正泽%韩京增%尹国逊%赵士旺%孙建元
譚正澤%韓京增%尹國遜%趙士旺%孫建元
담정택%한경증%윤국손%조사왕%손건원
炼铁除尘灰%全铁分析%碱熔除碳%重铬酸钾容量法
煉鐵除塵灰%全鐵分析%堿鎔除碳%重鉻痠鉀容量法
련철제진회%전철분석%감용제탄%중락산갑용량법
ironmaking dusting ash%total iron analysis%alkali fusion carbon removal%potassium dichromate volumetric method
以炼铁除尘灰为试样，采用过氧化钠熔融法分析全铁，在过氧化钠加入量2.0 g、熔融温度650℃、熔融时间10 min的条件下，碳去除率98.65%，消除了碳对还原、滴定终点颜色的影响。人工样品分析结果表明，本方法适用于全铁含量＜48%、碳含量＜54%的炼铁除尘灰中全铁的测定，分析结果与国标法、行标法和预氧化法测定值相比，无显著性差异。
以煉鐵除塵灰為試樣，採用過氧化鈉鎔融法分析全鐵，在過氧化鈉加入量2.0 g、鎔融溫度650℃、鎔融時間10 min的條件下，碳去除率98.65%，消除瞭碳對還原、滴定終點顏色的影響。人工樣品分析結果錶明，本方法適用于全鐵含量＜48%、碳含量＜54%的煉鐵除塵灰中全鐵的測定，分析結果與國標法、行標法和預氧化法測定值相比，無顯著性差異。
이련철제진회위시양，채용과양화납용융법분석전철，재과양화납가입량2.0 g、용융온도650℃、용융시간10 min적조건하，탄거제솔98.65%，소제료탄대환원、적정종점안색적영향。인공양품분석결과표명，본방법괄용우전철함량＜48%、탄함량＜54%적련철제진회중전철적측정，분석결과여국표법、행표법화예양화법측정치상비，무현저성차이。
Taking ironmaking dusting ash as samples, the total iron in it was analyzed by sodium peroxide melting method. In the conditions of sodium peroxide dosage 2 g, melting temperature of 650℃and melting time of 10 min, the carbon removal rate reached 98.65%, eliminating the influences of the carbon on the colour of reduction end-point and titration end-point. The analytical results of the artificial samples showed that this method is applicable to the total iron content determination of the ironmaking dusting ash with less than 48% TFe and less than 54% C. Comparing with the National Standard Method, the Industry Standard Method and pre-oxidation method, the results by this method have no significant differences.
