摘要
The PMBP method for extracting REE from iron ores is improved by oxidizing Fe(Ⅱ) into: Fe(Ⅲ)with hydrogen peroxide, by adding large amount of sulfosalicyli-acid to get complex compound, and by sheltering the dominating iron. RE2O3 of 5 μg ean be extract quantitatively from 100 mg iron. Combined with colorimetric method of Arsena-20Ⅲ, this method has been applied successfully to the separation and determination of trace amount o REE (no less than 0.005%) in iron ores with relative error of ±10%.
The PMBP method for extracting REE fram iron ores is improved by oxidizing Fe(Ⅱ) into Fe(Ⅲ) with hydrogen peroxide, by adding large amount of sulfosalicyli-acidto get complex compound, and by sheltering the dominating iron. RE_2O_3 of 5μg call beextract quantitatively from 100 mp iron. Combined with colorimetric method of Arsena-20III, this method has been applied successfully to the separation and determination oftrace amount of REE (no less than 0.005%) in iron ores with relative error of ±10%.
出处
《地球化学》
CAS
1983年第1期98-102,共5页
Geochimica
