Results 221 to 230 of about 970,819 (298)

Effects of simultaneous ultrasonic treatment on the separation selectivity and flotation kinetics of high-ash lignite

Fuel, 2020
The purpose of this study was to investigate the effects of conventional flotation and simultaneous ultrasonic flotation in the pulp/froth zones on the separation selectivity and kinetics of high-ash lignite flotation.
Xiangning Bu, Guangyuan Xie
exaly   +2 more sources

Effect of particle shape on the flotation kinetics of fine coking coal

Journal of Cleaner Production, 2018
Particle shape has a significant effect on the flotation process of fine mineral and fine coal particles. In this paper, the effects of particle shape on the flotation kinetics and behavior of fine coking coal of different size fractions were ...
Wencheng Xia, Guangxi Ma, Guangyuan Xie   +2 more
exaly   +2 more sources

Flotation kinetics of a pyritic gold ore

International Journal of Mineral Processing, 2011
Abstract Kinetics of semi-batch flotation behavior of a gold ore from North-Western Quebec, Canada was investigated with respect to fineness of grind (P80). The gold was mostly associated with pyrite in native form as inclusions and was also in contact with pyrite along the boundaries of non-sulphide gangue.
E. Yalcin, S. Kelebek
exaly   +2 more sources

Flotation kinetics performance of different coal size fractions with nanobubbles

International Journal of Minerals, Metallurgy and Materials, 2022
Huaifa Wang
exaly   +2 more sources

Effect of nanobubbles on electrode material flotation: A comparative study of flotation kinetics

Powder Technology
Yuwei Qin, Chenwei Li, Yating Zhang, Haijun Zhang   +3 more
semanticscholar   +2 more sources

Determination of three stages for molybdenite flotation kinetics in seawater

Mineral Processing and Extractive Metallurgy Review, 2023
This research mainly investigated the flotation kinetics of molybdenite in seawater based on four flotation models. Molybdenite flotation presented an excellent agreement with the first-order model with rectangular distribution.
Wanqing Li, Yubiao Li, Wen Chen, Wanqing Duan, Zhenlun Wei, Xu Yang   +5 more
semanticscholar   +1 more source

Challenges in flotation scale-up: The impact of flotation kinetics and froth transport

Minerals Engineering
J. Yianatos, P. Vallejos
semanticscholar   +2 more sources

On the kinetics of froth flotation

International Journal of Mineral Processing, 1990
Abstract The problem of froth flotation kinetics is treated as a transport phenomenon. Two coupled equations of balance are formulated which concern the particles attached upon the bubbles and the free particles in the pulp. The combined equations are solved and an analytical expression for the recovery as a function of time is obtained.
B.P. Radoev, L.B. Alexandrova, S.D. Tchaljovska   +2 more
openaire   +1 more source

Flotation characteristics and flotation kinetics of fine wolframite

Powder Technology, 2017
Abstract The flotation characteristics and kinetics of fine wolframite from Shizhuyuan Mine, Hunan, China were studied. Coarse and middle particles entered the concentrate easily. However, because of the reduction of middle particles as carriers and the poor collision and attachment between fine particles and air bubbles, it was difficult to float ...
Guanghua Ai, Xiuli Yang, Xiaobo Li
openaire   +1 more source

Wetting film stability and flotation kinetics

Advances in Colloid and Interface Science, 2002
Single bubble experiments performed with different size fractions of quartz particles and different, but known, contact angles revealed two modes of flotation dynamics in superclean water. (1.) A monotonic increase of collection efficiency Ecoll with increasing particle size was observed at high particle hydrophobicity and, correspondingly, a low ...
J, Ralston, S S, Dukhin, N A, Mishchuk
openaire   +2 more sources