| Precipitation of antimony from the solution of sodium thioantimonite by air oxidation in the presence of catalytic agents |
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| 作者姓名： | 杨天足 赖琼琳 唐建军 楚广 |
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| 作者单位： | DepartmentofMetallurgicalScienceandEngineering,CentralSouth-University,Changsha410083,China |
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| 基金项目： | TheKeyProgramof 9thFive YearPlanofChina (No 96 915 0 8 0 4 ) |
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| 摘 要： | The behavior of antimony oxidation in the solution of sodium thioantimonite was studied in the presence of catalytic agents. The catalytic effects of the respective addition of cupric sulfate, sodium tartrate, potassium permanganate, phenol, 1,2-dihydroxybenzene and their combination on the oxidation of sodium thioantimonite were investigated. A pilot test was carried out. The results show that the respective use of sodium tartrate, cupric sulfate, potassium permanganate, phenol and 1,2-dihydroxybenzene have little catalytic effect on the oxidation of sodium thioantimonite. However there exists obvious catalytic oxidation by the combination of 0.25 g/L 1,2-dihydroxybenzene, 0.5 g/L potassium permanganate and 1.0 g/L phenol. Moreover, high blast intensity, the increase of temperature and NaOH concentration favor the oxidation of antimony. The oxidation process of antimony has such advantages as quick reaction and low operation costs. The results of the pilot test are consistent with those of laboratory experiments.
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| 关 键 词： | 析出 锑 硫代亚锑酸钠溶液 空气氧化 催化剂 |
| 收稿时间： | 21 November 2001 |
Precipitation of antimony from the solution of sodium thioantimonite by air oxidation in the presence of catalytic agents |
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| Yang Tian-zu , Lai Qiong-lin , Tang Jian-jun and Chu Guang.Precipitation of antimony from the solution of sodium thioantimonite by air oxidation in the presence of catalytic agents[J].Journal of Central South University of Technology,2002,9(2):107-111. |
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| Authors: | Yang Tian-zu Lai Qiong-lin Tang Jian-jun and Chu Guang |
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| Affiliation: | (1) Department of Metallurgical Science and Engineering, Central South University, 410083 Changsha, China |
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| Abstract: | The behavior of antimony oxidation in the solution of sodium thioantimonite was studied in the presence of catalytic agents.
The catalytic effects of the respective addition of cupric sulfate, sodium tartrate, potassium permanganate, phenol, 1,2-dihydroxybenzene
and their combination on the oxidation of sodium thioantimonite were investigated. A pilot test was carried out. The results
show that the respective use of sodium tartrate, cupric sulfate, potassium permanganate, phenol and 1,2-dihydroxybenzene have
little catalytic effect on the oxidation of sodium thioantimonite. However there exists obvious catalytic oxidation by the
combination of 0.25 g/L 1,2-dihydroxybenzene, 0.5 g/L potassium permanganate and 1.0 g/L phenol. Moreover, high blast intensity,
the increase of temperature and NaOH concentration favor the oxidation of antimony. The oxidation process of antimony has
such advantages as quick reaction and low operation costs. The results of the pilot test are consistent with those of laboratory
experiments.
Foundation item: The Key Program of 9th Five-Year Plan of China (No 96-915-08-04)
Biography of the first author: YANG Tian-zu, Ph.D, professor, born in April 1958, majoring in the utilization of complex polymetallic concentrate and metallurgy
and refining of precious metals |
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| Keywords: | sodium thioantimonite air oxidization catalyzer |
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