Enduring Technology

Flotation of Metallic Ores – an Overview, Part 2

Quelle/Source: Gründer/www.harzinfo.com

7 Blei-Kupfer-Zink-Flotationsanlage Rammelsberg • Lead-copper-zinc flotation facility Rammelsberg

Quelle/Source: Gründer/www.harzinfo.com

Quelle/Source: Xstrata Copper

8 Zink/Markasit-Flotationsanlage der Kidd Creek Mine/Ontario • Zinc/marcasite flotation facility of the Kidd Creek Mine/Ontario

Quelle/Source: Xstrata Copper

Quelle/Source: Ivernia Inc. Canada

9 Bleikarbonataufbereitung der Magellan Lead Carbonate Mine • Lead carbonate processing plant of the Magellan Lead Carbonate Mine

Quelle/Source: Ivernia Inc. Canada

10 Prinzip der Umkehrflotation für Eisenerze • Principle of reverse flotation for iron ores

11 Typische brasilianische Eisenerzaufbereitung • Typical Brazilian iron ores concentration plant

Quelle/Source: Araujo et al., 2008

12 Eisengehalt und Ausbringen mit rückgewonnenen Aminen • Iron concentration and recovery with recycled amine

Quelle/Source: Araujo et al., 2008

Quelle/Source: Bernhart, 2002 u. Mosser et al. 2011

13 Flussdiagramm der Scheelitaufbereitung in Mittersill/Österreich • Flow diagram of the scheelite processing plant in Mittersill/Austria

Quelle/Source: Bernhart, 2002 u. Mosser et al. 2011

Quelle/Source: Chryssoulis et al. (2003), Weitkämper, Wotruba et al (2008) and Phyco (2010)

14 Zusammensetzung freier Goldpartikel und Goldflotation • Composition of free Gold particles and flotation

Quelle/Source: Chryssoulis et al. (2003), Weitkämper, Wotruba et al (2008) and Phyco (2010)

Quelle/Source: RPM – Rio Paracatu Mineração

15 Fließbild einer Goldaufbereitungsanlage in Brasilien • Flow diagram of a gold processing plant in Brazil

Quelle/Source: RPM – Rio Paracatu Mineração

Quelle/Source: Douglas W. Fuerstenau, Brisbane/Australia, 2005

6 Das klassische Flotationsdiagramm von Wark und Cox zeigt die kritischen pH-Werte für den Flotationsgrenzbereich von Pyrit, Galenit und Chalcopyrit • The classical flotation diagram of Wark and Cox shows the critical pH values for the flotation limits of pyrite, galena and chalcopyrite

Quelle/Source: Douglas W. Fuerstenau, Brisbane/Australia, 2005

Summary: After the authors had described the fundamentals of the process, the reagents used and had presented a historical survey regarding the various types of apparatuses in the previous issue – AT MINERAL PROCESSING 5/2015, p. 68-80 – the second part of their paper focuses on the practical use of floatation. Metal ores are classified due to their mineral and chemical characteristics and processing examples are provided, referring to various mineral processing plants worldwide.

5 Flotation of metal ores

Metal-bearing ores can be classified as follows for the purposes of flotation [29]:

“Class b” metal sulphides and “borderline” metals, in particular lead, zinc, copper, nickel, bismuth, antimony and mercury

Carbonates, sulphates and silicates of metals such as lead, zinc, copper, etc.

Polar salt-type minerals containing cations of alkaline earth metals such as Ca, Mg, Sr and Ba – e.g. scheelite, calcite, dolomite, magnesite, fluorite, apatite, celestine and barite

Metal oxides, arsenates, silicates and alumina silicates

Water-soluble salts of alkali and alkaline earth...