Study on the Mechanisms for Vanadium Phases' Transformation of Vanadium Slag Non-salt Roasting Process

被引：6

作者：

Yuan, Junfan ^{[1
]}

Cao, Yijun ^{[1
,3
]}

Fan, Guixia ^{[1
]}

Du, Hao ^{[2
]}

Dreisinger, David ^{[4
]}

Han, Guihong ^{[1
]}

Li, Meng ^{[1
,2
,4
]}

机构：

[1] Zhengzhou Univ, Sch Chem Engn, Zhengzhou 450001, Peoples R China

[2] Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China

[3] Zhengzhou Univ, Henan Prov Ind Technol Res Inst Resources & Mat, Zhengzhou 450001, Peoples R China

[4] Univ British Columbia, Dept Mat Engn, Vancouver, BC V6T 1Z4, Canada

来源：

RARE METAL TECHNOLOGY 2020 | 2020年

基金：

国家重点研发计划;

关键词：

Non-salt roasting; Vanadium slag; Ammonium leaching; Roasting and leaching mechanisms; OXIDATION; RECOVERY; KINETICS;

D O I：

10.1007/978-3-030-36758-9_22

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Sodium and calcium salts roasting are main processes for the production of vanadium compounds using vanadium slag as raw material. These processes suffer from heavy pollution and operation difficulty, respectively. Based on the principle regarding ferrovanadium spinel oxidation, as well as investigation of vanadium phases' in situ transformation, a clean and efficient vanadium extraction process featuring non-salt vanadium slag roasting, ammonium meta-vanadate conversion, was established. The new process is expected to be able to realize high vanadium recovery and reduce exhaust gas and wastewater at source. Further, the tailing can be comprehensively utilized in conjunction with ironmaking process. This process may provide scientific and technical support for the green upgrading of vanadium industry.

引用

页码：235 / 242

页数：8

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