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New Environment-Friendly Approach for Bastnasite Metallurgic Treatment (I): Extraction of Tetravalent Cerium from Sulphuric Acid Medium with Di(2-ethylhexyl) Phosphoric Acid

稀土学报(英文版)

关键词:

New Environment-Friendly Approach for Bastnasite Metallurgic Treatment (I): Extraction of Tetravalent Cerium from Sulphuric Acid Medium with Di(2-ethylhexyl) Phosphoric Acid

稀土学报(英文版)

关键词:

New Environment-Friendly Approach for Bastnasite Metallurgic Treatment (I): Extraction of Tetravalent Cerium from Sulphuric Acid Medium with Di(2-ethylhexyl) Phosphoric Acid

稀土学报(英文版)

关键词:

New Environment-Friendly Approach for Bastnasite Metallurgic Treatment (I): Extraction of Tetravalent Cerium from Sulphuric Acid Medium with Di(2-ethylhexyl) Phosphoric Acid

稀土学报(英文版)

关键词:

New Environment-Friendly Approach for Bastnasite Metallurgic Treatment (I): Extraction of Tetravalent Cerium from Sulphuric Acid Medium with Di(2-ethylhexyl) Phosphoric Acid

稀土学报(英文版)

关键词:

New Environment-Friendly Approach for Bastnasite Metallurgic Treatment (I): Extraction of Tetravalent Cerium from Sulphuric Acid Medium with Di(2-ethylhexyl) Phosphoric Acid

稀土学报(英文版)

关键词:

DBC-偶氮氯膦褪色分光光度法测定铈(IV)

翟庆洲 , 胡伟华 , 张晓霞 , 庞伟

稀有金属材料与工程

在1.0 mol·L-1～2.0 mol·L-1的H2SO4介质中,Ce(Ⅳ)与DBC-偶氮氯膦反应产生褪色反应,测定铈表观摩尔吸光系数为ε530nm=4.89×104L·mol-1·crm-1,Ce(IV)浓度范围在0.020μg·mL-1～0.88μg·mL-1范围内遵守比耳定律.考察了24种共存离子对测定铈的影响.本方法已满意地用于测定分子筛中的铈.

关键词: 铈(IV) , 褪色光度法 , DBC-偶氮氯膦