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Experiment study on water-rock interaction about gold activation and migration in different solutions

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Abstract

The interactions on gold active and migratory quantities and rates between tuffaceous slate and solutions with different compositions were experimentally studied at 200 °C, 20 MPa, in a high-pressure apparatus. After reaction, tuffaceous slate became light colored and soft, and its mass density reduced. The amount of gold extracted from tuffaceous slate ranges widely, from 0.027 to 0.234 µg/g. Chlorine solution may activate appreciable amount of gold, and the gold migratory rate is high enough, from 50.70% to 92.30%, which reveals that sulphur and chlorine work together in solutions to accelerate gold activation and migration, and to realize gold mineralization in favorable places.

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Authors and Affiliations

  1. College of Resources, Environment and Civil Engineering, Central South University, 410083, Changsha, China

    Dai Ta-gen, Gu Li, Qiu Dong-sheng & Xie Wen-bing

Authors
  1. Dai Ta-gen
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  2. Gu Li
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  3. Qiu Dong-sheng
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  4. Xie Wen-bing
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Additional information

Foundation item: The National Doctoral Found of China (No. 9705301) and the Natural Science Foundation of Hunan Province (No. 97jj205).

Biography of the first author: DAI Ta-gen, professor, born in Aug. 1952, majoring in application geochemistry.

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Dai, Tg., Gu, L., Qiu, Ds. et al. Experiment study on water-rock interaction about gold activation and migration in different solutions. J Cent. South Univ. Technol. 8, 105–107 (2001). https://doi.org/10.1007/s11771-001-0035-2

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  • DOI: https://doi.org/10.1007/s11771-001-0035-2

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