首页>
外国专利>
PROCESS FOR EXTRACTING GALIUM FROM A HIGHLY BASIC AQUEOUS SOLUTION OF SLDIUM ALUMINATE
PROCESS FOR EXTRACTING GALIUM FROM A HIGHLY BASIC AQUEOUS SOLUTION OF SLDIUM ALUMINATE
展开▼
机译:从高碱性铝酸钠水溶液中提取镓的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
The process consists in extracting, in a liquid-liquid extractor 1, the gallium present in a basic solution of sodium aluminate (Bayer liquor) by means of an extractant known under the tradename of Kelex, dissolved in an organic solvent. The organic phase containing the gallium is subjected to a first liquid-liquid extraction 2 by means of an acidic solution to remove, to at least a large extent, aluminium and sodium and then to a second liquid-liquid extraction 3 by means of another acidic solution to recover gallium. This acidic gallium solution is purified by extraction of gallium with an extractant at 4. After the extraction of gallium the acidic solution is recycled to the extractor 2 to reduce the usage of acid in the process. IMAGE
展开▼