Asbestos Waste Treatment-An Effective Process to Selectively Recover Gold and Other Nonferrous Metals

被引：4

作者：

Baigenzhenov, Omirserik ^{[1
]}

Khabiyev, Alibek ^{[1
]}

Mishra, Brajendra ^{[2
]}

Aimbetova, Indira ^{[3
]}

Yulusov, Sultan ^{[1
]}

Temirgali, Inkar ^{[1
]}

Kuldeyev, Yerzhan ^{[1
]}

Korganbayeva, Zhanar ^{[4
]}

机构：

[1] Satbayev Univ, Min Met Inst, 22a Satpaev Str, Alma Ata 050013, Kazakhstan

[2] Worcester Polytech Inst, Met Proc Inst, 100 Inst Rd, Worcester, MA 01609 USA

[3] Akhmet Yassawi Int Kazakh Turkish Univ, Fac Nat Sci, 29 B Sattarkhanov Ave, Turkestan 161200, Kazakhstan

[4] Abai Univ, Inst Nat Sci & Geog, 13 Dostyk Ave, Alma Ata 050010, Kazakhstan

来源：

RECYCLING | 2022年 / 7卷 / 06期

关键词：

asbestos tailings; complex processing; enrichment; nonferrous metals; gold; MAGNETIC SEPARATOR;

D O I：

10.3390/recycling7060085

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

We investigated the potential of tailings generated from chrysotile asbestos fiber production as a source of iron, nonferrous metals, and gold. We proposed the use of granulometric separation and systematically examined different enrichment processes, namely magnetic separation, gravity concentration, and enrichment using a Knelson concentrator, to extract the valuable components. The characterization of the initial tailing samples revealed that it comprises primarily of serpentine, brucite, antigorite, hematite, vustite, sillimanite, and magnesium oxide. Using the suggested enrichment process, we isolated gold, chromite, and nickel-cobalt concentrates as valuable products in addition to magnetite. The new approach exhibited high separation efficiency for iron, nonferrous metals, and gold, allowing their satisfactory extraction.

引用

页数：11

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