Influence of flotation cell hydrodynamics on the flotation kinetics and scale up, Part 1: Hydrodynamic parameter measurements and ore property determination

2016 ◽  
Vol 99 ◽  
pp. 40-51 ◽  
Author(s):  
E. Amini ◽  
D.J. Bradshaw ◽  
W. Xie
Keyword(s):  
Scale Up ◽  
Hydrodynamic Parameter ◽  
Flotation Kinetics ◽  
Flotation Cell

A Study of the Optimal Model of the Flotation Kinetics of Copper Slag from Copper Mine BOR

2014 ◽  
Vol 59 (3) ◽  
pp. 821-834 ◽  
Author(s):  
Rodoljub D. Stanojlović ◽  
Jovica M. Sokolović
Keyword(s):  
Pure Copper ◽  
Copper Slag ◽  
Copper Recovery ◽  
Optimal Model ◽  
Flotation Kinetics ◽  
Kinetics Parameters ◽  
Flotation Tailings ◽  
Copper Mine ◽  
Flotation Cell ◽  
Kinetics Of

Abstract In this study the effect of mixtures of copper slag and flotation tailings from copper mine Bor, Serbia on the flotation results of copper recovery and flotation kinetics parameters in a batch flotation cell has been investigated. By simultaneous adding old flotation tailings in the ball mill at the rate of 9%, it is possible to increase copper recovery for about 20%. These results are compared with obtained copper recovery of pure copper slag. The results of batch flotation test were fitted by MatLab software for modeling the first-order flotation kinetics in order to determine kinetics parameters and define an optimal model of the flotation kinetics. Six kinetic models are tested on the batch flotation copper recovery against flotation time. All models showed good correlation, however the modified Kelsall model provided the best fit.

NiAl precipitation in Fe-12w/o Cr-5w/o Ni-4w/o Al

1983 ◽  
Vol 41 ◽  
pp. 202-203
Author(s):  
L.E. Murr ◽  
J.S. Dunning ◽  
S. Shankar
Keyword(s):  
Solid Solution ◽  
Stainless Steel ◽  
Stainless Steels ◽  
Alloy Composition ◽  
Chromium Content ◽  
Scale Up ◽  
Optical Metallography ◽  
Property Evaluation ◽  
310 Stainless Steel ◽  
Microstructural Studies

Aluminum additions to conventional 18Cr-8Ni austenitic stainless steel compositions impart excellent resistance to high sulfur environments. However, problems are typically encountered with aluminum additions above about 1% due to embrittlement caused by aluminum in solid solution and the precipitation of NiAl. Consequently, little use has been made of aluminum alloy additions to stainless steels for use in sulfur or H2S environments in the chemical industry, energy conversion or generation, and mineral processing, for example.A research program at the Albany Research Center has concentrated on the development of a wrought alloy composition with as low a chromium content as possible, with the idea of developing a low-chromium substitute for 310 stainless steel (25Cr-20Ni) which is often used in high-sulfur environments. On the basis of workability and microstructural studies involving optical metallography on 100g button ingots soaked at 700°C and air-cooled, a low-alloy composition Fe-12Cr-5Ni-4Al (in wt %) was selected for scale up and property evaluation.

Scale-up of polyphenolic isolation by HPLC from Uncaria guianensis leaves by applying chromatographic models

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
RS Barboza ◽  
BR Rocha ◽  
AC Siani ◽  
LMM Valente ◽  
JL Mazzei
Keyword(s):  
Scale Up
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