Beneficiation Exploration Test of a Low-grade Rubidium Ore

Modern Mining ›› 2024, Vol. 40 ›› Issue (03): 126-130.

Beneficiation Exploration Test of a Low-grade Rubidium Ore

A low-grade rubidium ore with Rb2O grade of only 0.048% was directly subjected to chlori⁃ nation roasting-leaching to obtain qualified rubidium chloride products. In order to reduce the comprehen⁃ sive processing cost and improve the development and utilization value of rubidium resources，the explora⁃ tion test of beneficiation pre-concentration of rubidium resources was carried out for the low-grade rubidium ore.The test results show that under the condition of grinding fineness of -74 μm 65% and neutral flotation， the mass ratio of sodium dodecyl sulfate to coconut oil amine is 1∶1 as the combined collector，and the rubid⁃ ium concentrate with Rb2O grade of 0.102% and Rb2O recovery of 60.99% is finally obtained by one rough⁃ ing two scavenging，roughing and scavenging concentrate combined one cleaning flotation process.

1. Sinosteel Maanshan General Institute of Mining Research Co.，Ltd.； 2. State Key Laboratory of Safety and Health for Metal Mines； 3. Huawei National Engineering Research Center for Efficient Recycling of Me⁃ tallic Mineral Resources Co.，Ltd.

Online:2024-03-18 Published:2024-08-15

Abstract

Abstract: A low-grade rubidium ore with Rb2O grade of only 0.048% was directly subjected to chlori⁃ nation roasting-leaching to obtain qualified rubidium chloride products. In order to reduce the comprehen⁃ sive processing cost and improve the development and utilization value of rubidium resources，the explora⁃ tion test of beneficiation pre-concentration of rubidium resources was carried out for the low-grade rubidium ore.The test results show that under the condition of grinding fineness of -74 μm 65% and neutral flotation， the mass ratio of sodium dodecyl sulfate to coconut oil amine is 1∶1 as the combined collector，and the rubid⁃ ium concentrate with Rb2O grade of 0.102% and Rb2O recovery of 60.99% is finally obtained by one rough⁃ ing two scavenging，roughing and scavenging concentrate combined one cleaning flotation process.

Key words:

low grade rubidium ore, magnetic separation, flotation, neutral, sodium dodecyl sulfate,

coconut oil amine

CHEN Shaoxue, .

Beneficiation Exploration Test of a Low-grade Rubidium Ore

[J]. Modern Mining, 2024, 40(03): 126-130.

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