Extracting and purifying method of praseodymium oxide

• Main Authors: GAO WEIZHENG, JIAO DENGGAO, LU MEI, ZHU GUANCHENG, GAO WEIQUN, JIANG AIGUO, DING HAIYAN
• Format: Patent
• Language: Chinese; English
• Published: 13.06.2017
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; FERROUS OR NON-FERROUS ALLOYS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses an extracting and purifying method of praseodymium oxide. Through such steps as preparation of liquid to be purified, preparation of an intermediate agent, preparation of a separation column, transformation of a leaching column, absorption operation, leaching ion exchange operation, collection of the liquid according to the volume for sampling analysis, centralization, merging and collection of precipitates, and treatment of waste liquid, low-purity praseodymium oxide collected in traditional roughening is re-purified, so that the purity of praseodymium oxide reaches 99.997-99.99999%. 本发明公开了种氧化镨的提取纯化方法，通过配置待提纯液、中间剂配置、分离柱准备、淋洗柱转型、吸附操作、淋洗离子交换操作、按体积收集液进行取样分析，集中沉淀合并收集、废液处理等步骤，将现有粗加工收集的低纯度氧化镨进行再提纯，使得氧化镨纯度达到99.997~99.99999%。