2019-Sustainable Industrial Processing Summit
SIPS2019 Volume 4: Kozlov Intl. Symp. / Sustainable Materials Recycling Processes and Products

Editors:F. Kongoli, S.V. Alexandrovich, D.V. Grigorievich, L.L. Igoryevich, I. Startsev, T.A. Vladimirovich
Publisher:Flogen Star OUTREACH
Publication Year:2019
Pages:193 pages
ISBN:978-1-989820-03-2
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
CD-SIPS2019_Volume1
CD shopping page

    An Investigation on the Pyrometallurgical Recovery of Gold from Jewellery Workshop Wastes Using a Mixture of Fluxes

    Pouria Zakeri Ketabi1; Hossein Astaraki1; Manadana Adeli2;
    1IRAN UNICERSITY OF SCIENCE & TECHNOLOGY, Tehran, Iran; 2SCHOOL OF METALLURGY AND MATERIALS ENGINEERING, IRAN UNIVERSITY OF SCIENCE AND TECHNOLOGY, Tehran, Iran;
    Type of Paper: Regular
    Id Paper: 277
    Topic: 7

    Abstract:

    Precious metals such as gold and silver are a priority in recycling processes due to their economic values. In particular, jewellery workshop wastes which contain free gold and silver particles are considered a very valuable waste. These metals are usually extracted from jewellery wastes via the cupellation method using metallic lead. In this study, a pyrometallurgical method using a mixture of fluxes has been considered to recover gold from floor wastes of jewellery workshops. The process yields a relatively high efficiency in recovery, as well as savings in time and energy with the use of non-contaminating chemicals. The effect of type and flux-to-waste weight ratio on the properties of slag and recovery of gold has been studied. XRD, XRF, and DTA analyses have been used to characterize the wastes and the formed slag and to investigate the effect of slag properties on the recovery. A maximum value of 63.26wt.% was obtained for the recovery of gold without using dangerous chemical such as lead or contaminating processes such as cyanide leaching.

    Keywords:

    Non-Ferrous; Recycling; Slags;

    References:

    1. C. W. Corti, "Recovery and Refining of Gold Jewellery Scraps and Wastes," no. May, pp. 1-22, 2002
    2. S. Syed, "Recovery of gold from secondary sources-A review," Hydrometallurgy, vol. 115-116, pp. 30-51, 2012
    3. M. Delfini, A. Manni, and P. Massacci, "Gold recovery from jewellery waste," Miner. Eng., vol. 13, no. 6, pp. 663-666, 2000

    Cite this article as:

    Zakeri Ketabi P, Astaraki H, Adeli M. (2019). An Investigation on the Pyrometallurgical Recovery of Gold from Jewellery Workshop Wastes Using a Mixture of Fluxes. In F. Kongoli, S.V. Alexandrovich, D.V. Grigorievich, L.L. Igoryevich, I. Startsev, T.A. Vladimirovich (Eds.), Sustainable Industrial Processing Summit SIPS2019 Volume 4: Kozlov Intl. Symp. / Sustainable Materials Recycling Processes and Products (pp. 129-130). Montreal, Canada: FLOGEN Star Outreach