Arsenic removal in low-grade fluorite by using mineral processing techniques (第7回資源リサイクル・材料科学に関する日韓国際シンポジウム特集)

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概要

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• A high grade of fluorite ore is necessary to produce hydrogen fluoride (HF) that is changed to fluoro-resin and then used in the semiconductor manufacturing. With the continues depletion of resources, novel technologies for processing low-grade fluorite ores are urgently needed, in order to lower the arsenic concentration to less than 100 mg/kg. In this study, a low-grade flotation concentrated fluorite ore, imported from Mexico, was upgraded by removing arsenic, which is difficult to be decreased by conventional method. The micro-bubble flotation, liquid-liquid separation and mechano-chemical leaching of fluorite ore were carried out to investigate the removal of arsenic from the low-grade fluorite. Experimental results showed that the arsenic concentration was reduced to less than 100 mg/kg.

著者

• Dodbiba Gjergj

  Graduate School Of Engineering The University Of Tokyo

• Dodbiba Gjergj

  Department Of Geosystem Engineering School Of Engineering The University Of Tokyo

• Dodbiba Gjergj

  Department Of Systems Innovation The University Of Tokyo

• Fujita Toyohisa

  Department of Systems Innovation, Graduate School of Engineering, The University of Tokyo

• Park Hyun

  Department of Systems Innovation, Graduate School of Engineering, The University of Tokyo

• HIGASHINO Koji

  Department of Systems Innovation, Graduate School of Engineering, The University of Tokyo

• MATSUO Seiji

  Department of Systems Innovation, Graduate School of Engineering, The University of Tokyo

• Matsuo Seiji

  Department Of Systems Innovation The University Of Tokyo

• FUJITA Toyohisa

  Akita University SVBL

• Fujita Toyohisa

  Dep. Of Geosystem Engineering School Of Engineering The Univ. Of Tokyo

• Fujita Toyohisa

  Department Of Systems Innovation The University Of Tokyo

• Fujita Toyohisa

  Department Of Geosciences Mining Engineering And Materials Processing Akita University

• Park Hyun

  Department Of Computer Science Korea Advanced Institute Of Science & Technology

• Higashino Koji

  Department Of Gastrointestinal Oncology Osaka Medical Center For Cancer And Cardiovascular Disease

• Matsuo Seiji

  Department Of Systems Innovation Graduate School Of Engineering The University Of Tokyo

• Park Hyun

  Department Of Chemical & Biomolecular Engineering Korea Advanced Institute Of Science & Tech

• Park Hyun

  Department Of Ceramic Engineering Chonnam National University

• Park Hyun

  Department of Biotechnology, Yeungnam University

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