苛化泥为焙烧添加剂从石煤提取五氧化二钒  

Extraction of Vanadium Pentoxide from Stone Coal by Using Causticizing Mud as Roasting Additive

作　　者：张萍[1] 蒋馥华[2] 

机构地区：[1]中国地质大学材料与化学工程学院 [2]武汉科技大学化工与资源环境学院

出　　处：《稀有金属》2000年第2期115-118,共4页Chinese Journal of Rare Metals

摘　　要：从石煤中提取五氧化二钒时 ,用苛化泥作焙烧添加剂 ,以取代氯化钠。焙烧后的物料先用水浸 ,再用碳酸氢铵并通入二氧化碳加压浸出。浸出液经离子交换法净化 ,再经沉钒和灼烧 ,得到合格的五氧化二钒产品。Causticizing mud was used as a roasting additive of sodium chloride for extraction of vanadium pentoxide from stone coal. The raw feed after roasting was leached by water, and then by ammonium bicarbonate and introduced carbon dioxide under high pressure. The leaching solution was purified by ion exchange, and then ammonium metavanadate was precipitated. A qualified product V 2O 5 was obtained by calcining ammonium metavanadate.

关 键 词：五氧化二钡 石煤 苛化泥 氧化焙烧 

分 类 号：TQ135.11[化学工程—无机化工]