Extracting and purifying method for holmium oxide

• Main Authors: GAO WEIZHENG, JIAO DENGGAO, LU MEI, ZHU GUANCHENG, GAO WEIQUN, JIANG AIGUO, DING HAIYAN
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2017
• 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 for holmium oxide. The existing low-purity holmium oxide collecting by crude processing is re-purified by steps such as to-be-purified liquid preparation, intermediate agent preparation, separation column preparation, elution column transition, adsorption operation, elution ion exchange operation, sampling analysis for a liquid collected by volume, centralized sediment mixing and collection and waste liquid treatment, so that the purity of holmium oxide reaches 99.996-99.99999%. 本发明公开了种氧化钬的提取纯化方法，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钬进行再提纯，使得氧化钬纯度达到99.996~99.99999%。