Grade-recovery curves provide many characteristic features of separation process. • Theoretical and practical grades of first flotation concentrate depend on ore type. • Recovery at maximum curvature to a great extent coexists with liberation degree. • Slope of grade-recovery curve at high recoveries reflects middlings liberation
Flotation performance is most commonly represented using grade-recovery curves, with a shift upwards and to the right indicating an improvement in performance
To generate a limiting grade-recovery curve, three points are shown for each mineral. The left most end point of the curve represents the feed grade of the composite. The middle point of each curve represents the concentrate grade produced when all of the particles bearing target mineral are recovered. The far right end point represents the concentrate grade and recovery of all liberated
The texture of particles within a flotation cell play a pivotal role in both mineral recovery, and the grade, in the flotation concentrate. Theoretical curves can be generated based on particle mineralogy and texture to indicate the maximum grade-recovery possible for a given feed ore. Comparing this ‘theoretical’ curve to actual grade recovery will provide insight in to the efficiency of the flotation circuit
Flotation 3 65,58 70,35 32,15 87,97 0,56 12,03. The grade/recovery curves are as follow. It is clear that the flotation circuit 1 is out of the competition, nor the grade neither the recovery were maximized (100 microns was not enough for liberating that ore). Both flotation 2 and 3 gave higher grade and recovery
Mineralogy and critically the texture of both the ore and gangue phases are of paramount importance in the flotation recovery of copper from porphyry ores. Mineralogy and texture will define the theoretical grade recovery curve for a feed ore. Actual grade-recovery falling below this may be due to texture and gangue influences, whilst desired
The texture of particles within a cell play a pivotal role in both mineral recovery and the grade in the flotation concentrate. Theoretical curves can be generated based on particle mineralogy and texture to indicate the maximum grade-recovery possible for a given feed ore
In this paper, prediction of copper and molybdenum grades and their recoveries of an industrial flotation plant are investigated using the Artificial Neural Networks (ANN) model. Process modeling has done based on 92 datasets collected at different operational conditions and feed characteristics. The prominent parameters investigated in this network were pH, collector, frother and F-Oil
Sep 24, 2018 · The optimum solids content of the pulp is 35%, because by increasing the pulp density, more particles report to the concentrate and increase copper recovery (also reducing concentrate grade). Drawing on the literature in the flotation area, a dependence of mineral recovery upon pulp density can be seen [ 24, 26, 32 ]
A flotation bank is a serial arrangement of cells. How to optimally operate a bank remains a challenge. This article reviews three reported strategies: air profiling, mass-pull (froth velocity) profiling and Peak Air Recovery (PAR) profiling. These are all ways of manipulating the recovery profile down a bank, which may be the property being exploited. Mathematical analysis has shown that a
Copper ores containing secondary Au and/or Ag values when the recovery of these metals can have a significant economic impact on the profitability of an operating plant whose primary products are base metal sulfide concentrates; Selective flotation of Cu at high pH from Ni/Cu ores; High grade precious metal (Au/Ag) ores containing sulfides
Jul 13, 2020 · Flotation feed grades were 4.8 g/t and 2.3 g/t gold, respectively. Cleaner concentrate grades ranged from 105 g/t to 637 g/t gold. Flotation gold recoveries ranged from 77% to 80%. Overall recovery (gravity and flotation) for all laboratory tests presented in Table 1 exceeded 90% gold recovery
Got any Questions?
Call Us TodayInquiry Online [email protected]
Copyright © 2021. Mondi Machinery Co., ltd. All rights reserved.