从含钒页岩中提取五氧化二钒的研究进展

亢选雄; 叶国华; 朱思琴; 梁雪崟

doi:10.7513/j.issn.1004-7638.2022.02.005

从含钒页岩中提取五氧化二钒的研究进展

doi: 10.7513/j.issn.1004-7638.2022.02.005

昆明理工大学国土资源工程学院, 云南昆明650093

基金项目: 国家自然科学基金资助项目（51964028，51304090）。

详细信息

作者简介:
亢选雄(1999—)，男，云南宣威人，硕士研究生，主要从事钒资源的物理分选与化学提取研究，E-mail：kxx520 lyx@163.com

通讯作者:
叶国华，博士，副教授，长期从事钒资源的物理分选与化学提取研究，E-mail：ghye581@163.com

中图分类号: TF841.3
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- 被引次数: 0
出版历程
- 收稿日期: 2022-01-14
- 网络出版日期: 2022-05-11
- 刊出日期: 2022-04-28

Research progress on V₂O₅ extraction from vanadium-bearing shale

Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China

摘要

摘要: 介绍了含钒页岩提钒的主要环节，包括预富集、焙烧、浸出等，分析讨论了各环节的优缺点。含钒页岩的预富集可以提高原矿中钒的品位、降低矿石处理量、提高含钒页岩资源的有效利用率，但对矿石性质要求较高；焙烧可以有效地破坏含钒页岩的晶体结构、促进低价钒向高价钒的转化，但存在效率较低、能耗较高和潜在污染等问题；直接酸浸工艺能有效浸取以吸附形式存在的含钒页岩中的钒，但对于以类质同象赋存于云母晶格中的含钒页岩适用性较差；新型浸出技术（如超声波浸出、微波浸出、微生物浸出技术等）强化了对含钒矿物晶体结构的破坏，但受技术和设备发展水平的限制，目前并未在工业上得到很好的应用。
- 提钒 /
- 含钒页岩 /
- 预富集 /
- 焙烧 /
- 浸出
Abstract: The main links of vanadium extraction from vanadium-bearing shale were introduced, including pre-enrichment, roasting, leaching, etc. The advantages and disadvantages of each step were analyzed and discussed. Pre-enrichment of vanadium-bearing shale can improve the grade of vanadium in the raw ore, reduce ore processing capacity, and increase the effective utilization of vanadium-bearing shale resources, but requires high ore properties. Roasting can effectively destroy the crystal structure of vanadium-bearing shale and promote the conversion of vanadium from low valence to high valence. Nevertheless, there are some problems such as low efficiency, high energy consumption and potential pollution. The direct acid leaching process can effectively extract vanadium in the form of adsorption from vanadium-containing shale, but the applicability to vanadium-bearing shale with isomorphism in the mica crystal lattice is poor. Recently new occurring leaching technologies, such as ultrasonic leaching, microwave leaching, microbial leaching, etc., can strengthen the destruction of the crystal structure of vanadium-bearing minerals. However, these processes have not been well used in industry at present due to limited development level of technology and equipment.
- vanadium extraction /
- vanadium-bearing shale /
- pre-enrichment /
- roasting /
- leaching

HTML全文

图 1 含钒页岩焙烧脱碳—摇床预抛尾工艺流程

Figure 1. Process of roasting decarburization of vanadium-bearing shale and rocking bed pre-throwing

下载: 全尺寸图片幻灯片

图 2 空白焙烧-酸浸提钒工艺流程

Figure 2. Process of vanadium extraction using blank roasting and acid leaching

下载: 全尺寸图片幻灯片

图 3 直接酸浸工艺流程

Figure 3. Process of vanadium extraction using direct acid leaching

下载: 全尺寸图片幻灯片

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