Author: Pulin Dai
Publisher: OAE Publishing Inc.
ISBN:
Category : Science
Languages : en
Pages : 10
Book Description
Removing molybdenite from chalcopyrite by flotation has long been a challenge due to their similar floatability as sulfide minerals. However, the difference in the magnetic susceptibility of the two minerals may be employed to address this challenge. Recently, pulsating high-gradient magnetic separation (PHGMS) has been reported effective as an environmentally friendly and economical strategy for separating chalcopyrite from molybdenite, but the mechanism of their magnetic difference is unclear. The current investigation employed crystal field theory and density functional theory calculations to theoretically elucidate the magnetic properties of these two minerals, and their difference was further demonstrated by experimental investigations. Under optimized conditions in a SLon-100 cyclic PHGMS separator, a chalcopyrite concentrate assaying 31.47% Cu and 0.44% Mo at 81.93% Cu and 5.56% Mo recoveries was produced from a pure chalcopyrite-molybdenite mixture that initially contained 26.29% Cu and 5.42% Mo. After the separation process, the Cu grade decreased to 15.06%, whereas the Mo grade increased to 16.22% in the nonmagnetic product. These findings have potential implications for the separation of chalcopyrite from molybdenite using PHGMS.
High-gradient magnetic separation mechanism for separation of chalcopyrite from molybdenite
Author: Pulin Dai
Publisher: OAE Publishing Inc.
ISBN:
Category : Science
Languages : en
Pages : 10
Book Description
Removing molybdenite from chalcopyrite by flotation has long been a challenge due to their similar floatability as sulfide minerals. However, the difference in the magnetic susceptibility of the two minerals may be employed to address this challenge. Recently, pulsating high-gradient magnetic separation (PHGMS) has been reported effective as an environmentally friendly and economical strategy for separating chalcopyrite from molybdenite, but the mechanism of their magnetic difference is unclear. The current investigation employed crystal field theory and density functional theory calculations to theoretically elucidate the magnetic properties of these two minerals, and their difference was further demonstrated by experimental investigations. Under optimized conditions in a SLon-100 cyclic PHGMS separator, a chalcopyrite concentrate assaying 31.47% Cu and 0.44% Mo at 81.93% Cu and 5.56% Mo recoveries was produced from a pure chalcopyrite-molybdenite mixture that initially contained 26.29% Cu and 5.42% Mo. After the separation process, the Cu grade decreased to 15.06%, whereas the Mo grade increased to 16.22% in the nonmagnetic product. These findings have potential implications for the separation of chalcopyrite from molybdenite using PHGMS.
Publisher: OAE Publishing Inc.
ISBN:
Category : Science
Languages : en
Pages : 10
Book Description
Removing molybdenite from chalcopyrite by flotation has long been a challenge due to their similar floatability as sulfide minerals. However, the difference in the magnetic susceptibility of the two minerals may be employed to address this challenge. Recently, pulsating high-gradient magnetic separation (PHGMS) has been reported effective as an environmentally friendly and economical strategy for separating chalcopyrite from molybdenite, but the mechanism of their magnetic difference is unclear. The current investigation employed crystal field theory and density functional theory calculations to theoretically elucidate the magnetic properties of these two minerals, and their difference was further demonstrated by experimental investigations. Under optimized conditions in a SLon-100 cyclic PHGMS separator, a chalcopyrite concentrate assaying 31.47% Cu and 0.44% Mo at 81.93% Cu and 5.56% Mo recoveries was produced from a pure chalcopyrite-molybdenite mixture that initially contained 26.29% Cu and 5.42% Mo. After the separation process, the Cu grade decreased to 15.06%, whereas the Mo grade increased to 16.22% in the nonmagnetic product. These findings have potential implications for the separation of chalcopyrite from molybdenite using PHGMS.
Magnetic Separation of Ores
Author: Reginald Scott Dean
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 480
Book Description
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 480
Book Description
High Gradient Magnetic Separation
Author: Richard Gerber
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 246
Book Description
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 246
Book Description
A Method for High Gradient Magnetic Separation of Magnetite Ore in a Gas Flow
Author: Ryan Godfrey
Publisher:
ISBN:
Category : Magnetic separation of ores
Languages : en
Pages : 22
Book Description
Publisher:
ISBN:
Category : Magnetic separation of ores
Languages : en
Pages : 22
Book Description
Magnetic Separation
Author: H. Pfister
Publisher:
ISBN:
Category :
Languages : en
Pages : 22
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 22
Book Description
High Intensity and High Gradient Magnetic Separation in Mineral Processing
Author: Jan A. Jirestig
Publisher:
ISBN:
Category :
Languages : en
Pages : 107
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 107
Book Description
Economics of the Application of High Gradient Magnetic Separation to Ceramic Minerals
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
High Gradient Magnetic Separation
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 115
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 115
Book Description
Magnetohydrodynamic & Magnetohydrostatic Methods of Mineral Separation
Author: U. Andres
Publisher:
ISBN:
Category : Magnetic separation of ores
Languages : en
Pages : 242
Book Description
Publisher:
ISBN:
Category : Magnetic separation of ores
Languages : en
Pages : 242
Book Description
High Gradient Magnetic Separation of Weakly Magnetic Materials
Author: Yukihiko Yanagisawa
Publisher:
ISBN:
Category :
Languages : en
Pages : 15
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 15
Book Description