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Citation: GAO Yun-Tao, WU Li-Sheng, WANG Wei. Microwave-promoted Extraction of Pt and Pd from Aqueous Biphase System of Polyethyleneglyol/(NH₄)₂ SO₄ and the Non-isothermal Kinetics of Reaction[J]. Chinese Journal of Applied Chemistry, ;2001, 18(6): 490-492. shu

Microwave-promoted Extraction of Pt and Pd from Aqueous Biphase System of Polyethyleneglyol/(NH₄)₂ SO₄ and the Non-isothermal Kinetics of Reaction

1.
a Department of Chemistry, Yunnan Nationality University, Kunming 650031;
2.
b Kunming Institute of Precious Metals, Kunming

Received Date: 12 September 2000
Available Online: 3 January 2001
Fund Project: 云南省应用基础研究基金(97B095M)资助 (97B095M)

Microwave irradiation technique was used to promote the extraction processes of bromide complex anions of Pt(Ⅱ) and Pd(Ⅱ) from aqueous biphase system of polyethyleneglyol/(NH₄)₂SO₄. The results showed that under microwave irradiation the distribution ratio of metals, extraction capacity and extraction ratio increased significantly as compared with conventional extraction technique. Under microwave irradiation the extraction ratio of Pt or Pd achieved 100.0% and 99.6%, respectively. The non-isothermal kinetics on the extraction reaction also approved the enhanced extraction rate.
- platinum,
- palladium,
- aqueous biphase,
- extraction,
- microwave irradiation,
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Microwave-promoted Extraction of Pt and Pd from Aqueous Biphase System of Polyethyleneglyol/(NH4)2 SO4 and the Non-isothermal Kinetics of Reaction

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通讯作者: 陈斌, bchen63@163.com

Microwave-promoted Extraction of Pt and Pd from Aqueous Biphase System of Polyethyleneglyol/(NH₄)₂ SO₄ and the Non-isothermal Kinetics of Reaction