Application of carrier-microencapsulation for coal flotation to remove pyrite and to suppress acid mine drainage formation at tailing dam

载体微胶囊在煤炭浮选中应用去除黄铁矿并抑制尾矿坝酸性矿井排水的形成

• 批准号: 20360401
• 负责人: HIROYOSHI Naoki
• 金额: $ 11.48万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20360401/
• 关键词: 石炭; 黄鉄鉱; カテコール; 薄膜; 脱硫; 鉱山酸性汚濁水; Si; Ti; 薄膜形成; サイクリックボルタンメトリ; 酸化還元

Pyrite associated with coal generates SOx causing acid rain during coal combustion. In coal preparation, pyrite is rejected as a gangue mineral using the physical separation technique such as froth flotation and wasted into tailing pond. In the froth flotation, pyrite is frequently entrapped in froth together with valuable mineral due to its hydrophobic nature. Formation of acid mine drainage due to the air-oxidation of pyrite in tailing pond is also a serious problem. In the present study, carrier-microencapsulation (CME) is proposed to suppress both the floatability and oxidation of pyrite in coal preparation.

煤中的硫铁矿在燃烧过程中会产生SOx，造成酸雨。在选煤过程中，采用泡沫浮选等物理分离技术将硫铁矿作为脉石矿物剔除，排入尾矿库。在泡沫浮选中，由于黄铁矿的疏水性，黄铁矿经常与有价值的矿物一起被捕获在泡沫中。尾矿库中硫铁矿的空气氧化形成酸性矿井水也是一个严重的问题。本研究提出采用载体微胶囊（CME）来抑制选煤过程中黄铁矿的可浮性和氧化性。

项目成果

Application of CME Treatment on the Suppression of Pyrite Floatability and Oxidation in Coal Preparation

CME处理在选煤中抑制黄铁矿浮选和氧化的应用

• 发表时间: 2010
• 作者: Jha R.K.T.;Satur J.;Ito M.;Hiroyoshi N.;Tsunekawa M.
• 通讯作者: Tsunekawa M.

Carrier-microencapsulation Using Si-catechol Complex for suppressing Pyrite Floatability

使用硅儿茶酚复合物的载体微胶囊抑制黄铁矿的可浮性

• 发表时间: 2008
• 期刊: Mineral Engineering 21
• 作者: R. K. T. Jha;J. Satur;N. Hiroyoshi;M. Ito and M. Tsunekawa
• 通讯作者: M. Ito and M. Tsunekawa

Suppression of floatability of pyrite in coal processing by carrier microencapsulation

• DOI: 10.1016/j.fuproc.2010.12.028
• 发表时间: 2011-05-01
• 期刊: FUEL PROCESSING TECHNOLOGY
• 影响因子: 7.5
• 作者: Jha, Rani Kumari Thakur;Satur, Jacqueline;Tsunekawa, Masami
• 通讯作者: Tsunekawa, Masami

Carrier Micro Encapsulation (CME) for Suppressing Pyrite Floatability and Oxidation in Coal Preparation

用于抑制选煤中黄铁矿可浮性和氧化的载体微胶囊 (CME)

• 发表时间: 2011
• 作者: R.K.T.Jha;J.Satur;N.Hiroyoshi;M.Ito;M.Tsunekawa
• 通讯作者: M.Tsunekawa

Carrier microencapsulation (CME) for Coal Preparation, Department of Sustainable Resources Engineering,Hokkaido University

用于选煤的载体微胶囊（CME），北海道大学可持续资源工程系

• 发表时间: 2009
• 作者: Jha R.K.T.;Satur J.;Ito M.;Hiroyoshi N.;Tsunekawa M.
• 通讯作者: Tsunekawa M.