Sulfur Removal of High-Sulfur Bauxite
Sulfur Removal of High-Sulfur Bauxite
复制标题
高硫铝土矿脱硫
DOI:
10.1007/s42461-020-00225-6
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发表时间:
2020-06
期刊:
影响因子:
--
通讯作者:
Xiong Ping
中科院分区:
文献类型:
--
作者:
Liu Zhanwei;Yan Hengwei;Ma Wenhui;Xiong Ping
The sulfur in high-sulfur bauxite not only pollutes the environment but also harms alumina production. This study investigated the removal of sulfur from high-sulfur bauxite by adding Zn or ZnO during the Bayer process. The results showed that the different valence sulfur (S2−, S2O32−, SO32−, and SO42−) in sodium aluminate solution can be effectively removed by adding Zn during the digestion process. Adding ZnO removes the S2−in liquor, but the other sulfur compounds (S2O32−, SO32−, and SO42−) are not affected. The mechanism of sulfur removal has been elucidated, where the S2O32−, SO32−, and SO42−are first reduced to S2−, and after adding Zn, the S2−enters into red mud in the form of ZnS. The ZnO then reacts with S2−to generate the ZnS that enters into red mud. Thus, this is a new and effective method of sulfur removal by adding Zn during the digestion process. The results shed light on the removal of sulfur from high-sulfur bauxite during alumina production.
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DOI:
10.1007/bf03402263
发表时间:
2013-08
期刊:
Mining, Metallurgy & Exploration
影响因子:
--
作者:
E. H. Cho;O. Olajide;R. Y. Yang
通讯作者:
E. H. Cho;O. Olajide;R. Y. Yang
影响因子:
1.8
作者:
H. Helms;Elke Schlömer;Walter Jansen
通讯作者:
H. Helms;Elke Schlömer;Walter Jansen
影响因子:
4.8
作者:
Chimonyo, W.;Corin, K. C.;O'Connor, C. T.
通讯作者:
O'Connor, C. T.
DOI:
10.1007/s11663-016-0841-4
发表时间:
2017-02-01
影响因子:
3
作者:
Gong, Xuzhong;Wang, Zhi;Wang, Mingyong
通讯作者:
Wang, Mingyong
影响因子:
4.7
作者:
Lou, Zhenning;Xiong, Ying;Zhai, Yuchun
通讯作者:
Zhai, Yuchun