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Minerals, Volume 8, Issue 4

April 2018 - 53 articles

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Cover Story: Scanning precession diffraction offers the possibility to record orientation maps within the transmission electron microscope, with spatial resolution of a few nanometers. Here we present an application to an aggregate of wadsleyite and ringwoodite (two high-pressure polymorphs of olivine present in the mantle transition zone) which allows to address the relative rheological behaviour of those two phases when deformed at high-pressure and high-temperature. View this paper

Articles (53)

  • Article
  • Open Access
20 Citations
5,815 Views
22 Pages

Insights into the Surface Transformation and Electrochemical Dissolution Process of Bornite in Bioleaching

  • Hongbo Zhao,
  • Xiaotao Huang,
  • Minghao Hu,
  • Chenyang Zhang,
  • Yisheng Zhang,
  • Jun Wang,
  • Wenqing Qin and
  • Guanzhou Qiu

23 April 2018

In this work, density functional theory (DFT) calculations, X-ray photoelectron spectroscopy (XPS) and electrochemistry analysis were combined to analyze the electrochemical dissolution process of bornite during bioleaching. DFT calculations showed t...

  • Article
  • Open Access
29 Citations
7,310 Views
11 Pages

Effect of Sodium Sulfite on Floatability of Chalcopyrite and Molybdenite

  • Hajime Miki,
  • Tsuyoshi Hirajima,
  • Yukihiro Muta,
  • Gde Pandhe Wisnu Suyantara and
  • Keiko Sasaki

22 April 2018

Sodium hydrogen sulfide (NaHS) is commonly used as a copper depressant in the selective flotation of copper and molybdenum ores. However, the process is facing health and safety issues because NaHS readily yields toxic hydrogen sulfide gas (H2S) unde...

  • Article
  • Open Access
11 Citations
16,616 Views
33 Pages

21 April 2018

Three major gold deposits, Matandani, Kukuluma, and Area 3, host several million ouncez (Moz) of gold, along a ~5 km long, WNW trend in the E part of the Geita Greenstone Belt, NW Tanzania. The deposits are hosted in Archaean volcanoclastic sediment...

  • Article
  • Open Access
5 Citations
4,919 Views
16 Pages

Carbonation-Induced Mineralogical Changes in Coal Mining Waste Blended Cement Pastes and Their Influence on Mechanical and Microporosity Properties

  • Moisés Frías,
  • Raquel Vigil De la Villa,
  • Rosario García,
  • Olga Rodríguez,
  • Lucía Fernández-Carrasco and
  • Sagrario Martínez-Ramírez

20 April 2018

The worldwide pursuit of new eco-efficient pozzolans is ongoing. Kaolinite-based waste is an eco-friendly source of recycled metakaolinite, a highly pozzolanic product. In this study, a blended cement paste containing 20% activated coal waste (ACW) w...

  • Article
  • Open Access
20 Citations
7,267 Views
15 Pages

Breakage Function for HPGR: Mineral and Mechanical Characterization of Tantalum and Tungsten Ores

  • Hernan Anticoi,
  • Eduard Guasch,
  • Sarbast Ahmad Hamid,
  • Josep Oliva,
  • Pura Alfonso,
  • Maite Garcia-Valles,
  • Marc Bascompta,
  • Lluis Sanmiquel,
  • Teresa Escobet and
  • Rosa Argelaguet
  • + 4 authors

20 April 2018

The modelling of high pressure grinding rolls is described by the population balance model, a mass balance which includes several functions that are related to the mineral characteristics, material kinetics and operative conditions of the device. The...

  • Article
  • Open Access
75 Citations
6,187 Views
15 Pages

19 April 2018

The microstructure evolution and strength development of cemented tailings backfill (CTB), mixed with plant tailings and cement, is critical to a more thorough and complete understanding of its functionality as a support structure in underground mini...

  • Article
  • Open Access
5 Citations
4,448 Views
10 Pages

Effect of Chain Length Compatibility of Alcohols on Muscovite Flotation by Dodecyl Amine

  • Li Wang,
  • Ning Sun,
  • Jiapeng Liu,
  • Honghu Tang,
  • Runqing Liu,
  • Haisheng Han,
  • Wei Sun and
  • Yuehua Hu

19 April 2018

A portion of dodecyl amine (DDA) in a muscovite flotation system was replaced with alcohols with different carbon-chain lengths. These alcohols included octanol (OCT); decanol (DEC); dodecanol (DOD); and tetradecanol (TER). The muscovite adsorption b...

  • Article
  • Open Access
23 Citations
5,646 Views
16 Pages

An Insight into Flotation Chemistry of Pyrite with Isomeric Xanthates: A Combined Experimental and Computational Study

  • Guihong Han,
  • Shengpeng Su,
  • Yanfang Huang,
  • Weijun Peng,
  • Yijun Cao and
  • Jiongtian Liu

19 April 2018

The flotation chemistry between pyrite and isomeric xanthates (butyl xanthate and isobutyl xanthate) was investigated by means of adsorption experiments, surface tension tests, and molecular dynamic simulations in this work. The flotation chemical re...

  • Article
  • Open Access
31 Citations
6,319 Views
13 Pages

18 April 2018

Response surface methodology is used to optimize the leaching process for refractory flotation copper tailings. The proportion of the refractory combination oxide copper (chrysocolla) is 64.84%. At present, few studies have examined the leaching of...

  • Article
  • Open Access
22 Citations
5,321 Views
18 Pages

17 April 2018

As a kind of coating material, the inorganic coating of alkali-activated metakaolin geopolymer cured at high temperature has been studied a lot for special applications. To our best knowledge, however, not much attention has been given to investigate...

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