阅读说明：本技术 一种从废钽/铌酸锂中制备高纯五氯化钽/铌和氯化锂的方法 (Method for preparing high-purity tantalum/niobium pentachloride and lithium chloride from waste tantalum/lithium niobate ) 是由 李焌源 田吉英 王一舟 向小绢 任改梅 黎静 于 2021-01-04 设计创作，主要内容包括：本发明公开了一种从废钽/铌酸锂中制备高纯五氯化钽/铌和氯化锂的方法,以酸碱清洗前处理的废钽/铌酸锂为钽/铌锂金属来源,石油焦、活性炭、炭黑为碳源,破碎后按一定比例混匀,经等离子体活化后,装入氯化炉中升温通入高纯氯气进行反应,产生的混合气控制温度280-400℃,通过高温除尘和过滤段除铁后,进入温度控制150-220℃的收料段冷却回收高纯五氯化钽/铌,氯化炉的残料通过水浸回收高纯氯化锂。本发明实现了高纯五氯化钽/铌和氯化锂的制备,解决了传统废钽/铌酸锂回收工艺普遍存在产品纯度不高、回收率低、工艺繁琐等问题,本发明具有工艺设备简单、原料完全利用、成本低廉、清洁环保的突出优点。(The invention discloses a method for preparing high-purity tantalum/niobium pentachloride and lithium chloride from waste tantalum/lithium niobate, which comprises the steps of taking waste tantalum/lithium niobate pretreated by acid-base cleaning as a tantalum/niobium lithium metal source, taking petroleum coke, activated carbon and carbon black as carbon sources, crushing, uniformly mixing according to a certain proportion, activating by plasma, putting into a chlorination furnace, heating, introducing high-purity chlorine gas for reaction, controlling the temperature of generated mixed gas to be 280 plus materials and 400 ℃, removing iron by a high-temperature dust removal and filtration section, entering a material receiving section with the temperature controlled to be 150 plus materials and 220 ℃, cooling and recovering the high-purity tantalum/niobium pentachloride, and recovering the high-purity lithium chloride from residual materials of the chlorination furnace by water leaching. The method realizes the preparation of high-purity tantalum/niobium pentachloride and lithium chloride, solves the problems of low product purity, low recovery rate, complex process and the like of the traditional waste tantalum/lithium niobate recovery process, and has the outstanding advantages of simple process equipment, complete utilization of raw materials, low cost, cleanness and environmental protection.)