从富硒石煤回收制备粗硒的新工艺

田欢; 帅琴; 徐生瑞; 鲍征宇; 谢淑云

doi:10.3799/dqkx.2014.082

Volume 39 Issue 7

Jul. 2014

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Article Navigation > Earth Science > 2014 > 39(7): 880-888

Tian Huan, Shuai Qin, Xu Shengrui, Bao Zhengyu, Xie Shuyun, 2014. Novel Technology for Preparation of Crude Selenium from Se-Rich Stone Coal. Earth Science, 39(7): 880-888. doi: 10.3799/dqkx.2014.082

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Tian Huan, Shuai Qin, Xu Shengrui, Bao Zhengyu, Xie Shuyun, 2014. Novel Technology for Preparation of Crude Selenium from Se-Rich Stone Coal. Earth Science, 39(7): 880-888. doi: 10.3799/dqkx.2014.082

Tian Huan, Shuai Qin, Xu Shengrui, Bao Zhengyu, Xie Shuyun, 2014. Novel Technology for Preparation of Crude Selenium from Se-Rich Stone Coal. Earth Science, 39(7): 880-888. doi: 10.3799/dqkx.2014.082

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Novel Technology for Preparation of Crude Selenium from Se-Rich Stone Coal

doi: 10.3799/dqkx.2014.082

1.
Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China
2.
Faculty of Material Science and Chemistry, China University of Geosciences, Wuhan 430074, China

Received Date: 2013-09-26
Publish Date: 2014-07-15

Abstract

Abstract

A new effective recovery method of crude Se by Na₂SO₃ is presented from high efficient calcium-adsorbent used for combustion of Se-rich stone coal, which was collected from Yutangba, Enshi, Hubei Province. The reduction of Se reaches 98.48±1.95% (n=3) in the simulation process and the optimium parameters are determined as follows: terperature 353 K, time 15 mins, HCl concentration 4 mol·L^-1 and mass ratio between Na₂SO₃ to Se of 6∶1. An acceptable recovery rate of selenium was also obtained from the actual experiment using Se-rich stone coal. The XRD and SEM-EDS analysis results show that the crystal system and purity of Se are controlled by many factors in the reaction system.
- Se-rich stone coal,
- selemium,
- Na₂SO₃,
- reduction,
- recovery,
- geochemistry

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References(62)

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Novel Technology for Preparation of Crude Selenium from Se-Rich Stone Coal

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