摘要
用D2EHPA从制备硫酸用的废钒催化剂的还原性硫酸浸出液中萃取钒,硫酸反萃取,反萃取液氧化、氨水中和沉淀钒,沉淀物经煅烧得五氧化二钒产品,其纯度达出口标准。计算钒的总回收率达96％。该工艺流程简单可行,便于实现工业生产。
The paper presents the results of recovering vanadium from Na2SO3-H2SO4 solution obtained from the leaching of spent vanadium catalyst in sulphuric acid production, using solvent extraction with D2EHPA-TBP-kerosene, stripping and oxidation-precipitation, the vanadium efficiencies of which were up to 99%,99. 7% and 98% respectively. The obtained product can meet the requirements for export commodities. The tested flowsheet is simple, feasible and suitable for industrial production.
出处
《铀矿冶》
CAS
1993年第3期174-180,共7页
Uranium Mining and Metallurgy
