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Citation: FAN Yue-Qin, LIU Yong-Wen, GUO Yong, MENG Shuang-Ming, CHANG Xi-Jun, DIN Bing-Jun. Floatation Separation of Lead(Ⅱ) via Ammonium Sulfate-Dibromo-p-methylcarboxy-sulfonazo-Polyglycol System[J]. Chinese Journal of Applied Chemistry, ;2004, 21(12): 1295-1299. shu

Floatation Separation of Lead(Ⅱ) via Ammonium Sulfate-Dibromo-p-methylcarboxy-sulfonazo-Polyglycol System

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a Department of Chemistry, Yanbei Normal Institute, Datong 037000;
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b School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou;
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c School of Material Science and Engineering, Xi'an Jiaotong University, Xi'an

Corresponding author: LIU Yong-Wen,
Received Date: 16 January 2003
Available Online: 1 June 2004
Fund Project:

Lead(Ⅱ) can form precipitate with dibromo-p-methylcarboxysulfonazo and polyglycol. This precipitate can be floated quantitatively. The experimental results show that in a HAc-NaAc medium(pH=4.0) with (NH₄)₂SO₄ present, lead(Ⅱ) can be completely separated by floatation from Fe(Ⅲ), Cr(Ⅲ), Al(Ⅲ), Co(Ⅱ), Ni(Ⅱ), Cu(Ⅱ), Zn(Ⅱ), Mn(Ⅱ), Cd(Ⅱ) and Hg(Ⅱ) within 5 min at room temperature. The great features of this method are simple, rapid and selective for lead(Ⅱ). It has been applied to the floatation of lead(Ⅱ) in synthetic water sample with satisfactory results.
- lead,
- floatation separation,
- dibromo-p-methylcarboxysulfonazo,
- polyglycol,
- ammonium sulfate
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