Zn release from fluid inclusions in a natural sphalerite

Shu-ming Wen; Jian Liu; Bo Li; Run-sheng Han; Yi Zhang; Jiu-shuai Deng

doi:10.1007/s12613-013-0745-0

Volume 20 Issue 5

May 2013

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International Journal of Minerals, Metallurgy and Materials > 2013 > 20(5): 420-426. > DOI: 10.1007/s12613-013-0745-0

Shu-ming Wen, Jian Liu, Bo Li, Run-sheng Han, Yi Zhang, and Jiu-shuai Deng, Zn release from fluid inclusions in a natural sphalerite, Int. J. Miner. Metall. Mater., 20(2013), No. 5, pp.420-426. https://dx.doi.org/10.1007/s12613-013-0745-0

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Zn release from fluid inclusions in a natural sphalerite

Shu-ming Wen^1), ,,
Jian Liu¹⁾,
Bo Li²⁾,
Run-sheng Han²⁾,
Yi Zhang¹⁾ and
Jiu-shuai Deng¹⁾

Author Affilications

Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming, 650093, China
Southwest Institute of Geological Survey Center for Non-ferrous Mineral Resources, Kunming University of Science and Technology, Kunming, 650093, China

Funds:

the Analysis Testing Foundation of Kunming University of Science and Technology (No.2010-303).

supported by the Key Program of the National Natural Science Foundation of China (No.u0837602)

Received: 02 June 2012; Revised: 21 September 2012; Accepted: 27 September 2012; Available Online: 09 June 2021

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Abstract

Abstract

The type, size, and compositions of fluid inclusions in a natural sphalerite were investigated and the total concentration of Zn released from the fluid inclusions was measured. To compare the total concentration of Zn released from the fluid inclusions with that dissolved from the sphalerite itself, dissolution experiments and theoretical calculations for the dissolution equilibrium of the sphalerite were also performed. The results indicate that large numbers of fluid inclusions with various sizes exist in the sphalerite, which can be divided into four types, i.e., pure gaseous inclusions, pure liquid inclusions, gas-liquid inclusions, and gas-liquid inclusions containing solid minerals. These inclusions were broken open during the grinding process, and their compositions were released to the solution. The total concentration of Zn released from these inclusions reaches 18.35×10⁻⁶ mol/L, which is much higher than that of Zn dissolved from the sphalerite itself (1.93×10⁻⁶ mol/L) and the theoretical calculation value (2.73×10⁻⁸ mol/L).
- zinc ore treatment,
- sphalerite,
- fluid inclusions,
- flotation

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