Development of separation method for secondary copper and arsenic minerals using flotation

再生铜砷矿物浮选分离方法的开发

• 批准号: 22K14636
• 负责人: Suyantara Gde・Pandhe・Wisnu
• 金额: $ 2.91万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Early-Career Scientists
• 财政年份: 2022
• 资助国家: 日本
• 起止时间: 2022-04-01 至 2024-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-22K14636/
• 关键词: enargite; chalcocite; hydrogen peroxide; potassium amyl xanthate; selective flotation; mineral separation; Secondary copper sulfide; Arsenic bearing minerals; Oxidation treatment; Selective flotation; Surface properties

The separation of chalcocite (a secondary copper mineral) and enargite (a copper arsenic mineral) was studied using hydrogen peroxide (H2O2) oxidation treatment and flotation process. Flotation tests of pure and mixed minerals indicated that H2O2 treatment reduced the floatability of chalcocite and enargite by forming sulfate and copper hydroxide on their surfaces. Despite the detrimental effect of the H2O2 treatment, there was a narrow window of H2O2 concentration for separating both minerals, in which enargite floated and chalcocite was depressed. This selective flotation behavior was caused by the rapid adsorption of potassium amyl xanthate (KAX) and lower surface oxidation of enargite compared with that of chalcocite.

研究了采用过氧化氢 (H2O2) 氧化处理和浮选工艺分离辉铜矿（一种次生铜矿物）和硫铜矿（一种铜砷矿物）。纯矿物和混合矿物的浮选试验表明，H2O2 处理通过在其表面形成硫酸盐和氢氧化铜，降低了辉铜矿和硫铜矿的可浮性。尽管 H2O2 处理有不利影响，但分离两种矿物的 H2O2 浓度范围很窄，其中硫铜矿上浮，辉铜矿下沉。这种选择性浮选行为是由于戊基黄原酸钾（KAX）的快速吸附以及与辉铜矿相比，硫铜矿的表面氧化程度较低而引起的。

项目成果

Oxidation treatment for separation of copper sulfide minerals and arsenic-bearing copper minerals using flotation

氧化处理浮选分离硫化铜矿物和含砷铜矿物

• 发表时间: 2022
• 作者: Gde Pandhe Wisnu Suyantara;Tsuyoshi Hirajima;Hajime Miki;Keiko Sasaki;Yoshiyuki Tanaka;Eri Takida
• 通讯作者: Eri Takida

Investigation of sodium sulfite as a selective depressant in the flotation of chalcopyrite and enargite

亚硫酸钠作为黄铜矿和硫铜矿浮选选择性抑制剂的研究

• 发表时间: 2022
• 作者: Gde Pandhe Wisnu Suyantara;Tsuyoshi Hirajima; Hajime Miki; Keiko Sasaki;Yoshiyuki Tanaka; Yuji Aoki
• 通讯作者: Yuji Aoki

Selective Flotation of Fluorite from Calcite using Sodium Humate as a Depressant

使用腐植酸钠作为抑制剂从方解石中选择性浮选萤石

• 发表时间: 2023
• 作者: Rihan Efendi;Farahat Mohsen;Hajime Miki;Gde Pandhe Wisnu Suyantara;Keiko Sasaki
• 通讯作者: Keiko Sasaki

Selective flotation of Copper Mineral and Enargite with PAX and Hydrogen Peroxide

用 PAX 和过氧化氢选择性浮选铜矿物和硫铜矿

• 发表时间: 2022
• 作者: Daniyarov Berdakh;Hajime Miki;Gde Pandhe Wisnu Suyantara;Tsuyoshi Hirajima;Keiko Sasaki
• 通讯作者: Keiko Sasaki

Study on the Effect of Sodium Metabisulfite on Selective Flotation of Chalcopyrite and Molybdenite with Seawater

焦亚硫酸钠对海水选择性浮选黄铜矿和辉钼矿的影响研究

• 发表时间: 2022
• 作者: Ryoji Ogi;Gde Pandhe Wisnu Suyantara;Hajime Miki;Tsuyoshi Hirajima;Keiko Sasaki;Yuji Aoki; Daishi Ochi
• 通讯作者: Daishi Ochi