| 第 39 卷第 2 期 |  | Vol. 39 No. 2 | | 2009 年 4 月 | Apr 2009 |
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所属栏目：安全与环保
树脂吸附法从含钼废水中回收制备三氧化钼 |
| 李志松，李群松，舒均杰
（湖南化工职业技术学院，湖南 株洲 412004） |
| 摘 要：采用A325树脂对某含钼废水进行吸附，回收废水中的钼并制得了三氧化钼产品。整个过程分为废水中钼的吸附、解吸、除杂净化和三氧化钼的制备等几个步骤。在钼的吸附过程中，当原料液钼浓度2.8 g／L时，适宜的工艺条件是：v（料液） ∶ v（树脂）=45 ∶ 1，料液pH值为3.0、料液温度25±2℃、料液流速10 mL／min，钼的吸附率可达到94.3%。解吸时，采用10%的氨水溶液作为解吸液，v（解吸液） ∶ v（树脂）=2 ∶ 1进行配料。富钼解吸液再经除杂净化、酸化沉淀、过滤、洗涤、烘干、煅烧，制得三氧化钼产品。 |
| 关键词：含钼废水；三氧化钼；树脂吸附法；回收制备 |
| 中图分类号：TF841.2 文献标识码：A 文章编号：1009-9212（2009）02- 0060-03 |
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| Recovery and Preparation of Molybdenum Trioxide from Wastewater by Way of Resin Adsorption |
| LI Zhi-song，LI Qun-song，SHU Jun-jie
（Hunan Chemical Industry Professional Technology College，Zhuzhou 412004，China） |
| Abstract：Molybdenum was recovered from wastewater by adsorption with A325 resin and then converted into molybdenum trioxide. The process was consisted of adsorption, desorption, purification and preparation of molybdenum trioxide. For a water feed containing Mo 2.8 g／L，the proper separation conditions were achieved as：v（feed solution） ∶ v(resin）=45 ∶ 1，pH 3.0，temperature 25±2℃，and feed flow rate 10 mL／min. Under these conditions 94.3% of Mo in the water was adsorbed. 10% NH4OH solution was used for desorption at a volume ratio of 2 ∶ 1［v（desorption solution）∶ v(resin）］. Molybdenum trioxide was prepared from the Mo rich desorption solution in steps of purification，acidic precipitation，filtration，washing，drying and calcination. |
| Key words：molybdenum containing wastewater；molybdenum trioxide；resin；adsorption |
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作者简介：李志松（1966-），高级工程师，湖南双峰人，主要从事教学及精细化工产品的研发工作。（E-mail：lizhisong1888@163.com）
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收稿日期：2009-03-26
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