Introduction to Mineral Processing. ... Chemicals referred to as depressants are added to the pulp to reduce the flotation of the copper minerals while allowing the molybdenum minerals to float. ... from the molybdenum plant are the final copper concentrate (typically greater than 30% copper). Following molybdenum rougher flotation and several ...
optimum conditions for the flotation of nickel, copper and cobalt from a nickel-copper sulphide ore. The parameters investigated include collector dosage, percentage solids, depressant dosage and pH. ... Flotation Procedure All the flotation test-work was done using the Denver laboratory machine with a 1.5l stainless steel
Sep 12, 2012· This shows you the froth produced by flotation on a porphyry copper ore of about 1.5% Cu. You see the rougher flotation, the cleaner and scavenger circuit. It is a very small pilot plant small ...
MECHANISM OF SPHALERITE DEPRESSION IN AN OPEN CU/ZN FLOTATION SEPARATION CIRCUIT *L. Xia1, B. Hart1, ... particularly for the sphalerite recovery in the rougher copper concentrate. Tests indicate that sphalerite recovery of the flotation concentrate in the laboratory testing was ... The total rougher copper flotation time was 7.5min.
Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic. ... the Minerals Separation paid for a test plant for the Inspiration Copper Company at Miami, Arizona. Built under the San Francisco office director, Edward Nutter, it proved a success. ... The rougher flotation step is often followed by a scavenger ...
In this work, rougher flotation of low grade copper minerals (0.6–0.7% Cu) was tested in column cells at laboratory scale. A negative bias regime was used in order to create a levitating effect on particle–bubble aggregates to promote gross particle flotation.
Both sections consist of three bulk copper and molybdenum rougher flotation lines, and the rougher concentrate is transferred to a regrinding stage. ... (TC5) tests and lab flotation tests with fresh process samples. Basis of the generated kinetic test data rougher flotation model was implemented using Outotec HSC Chemistry software.
Sep 12, 2012· Copper is recovered by Froth Flotation in the mini float plant. Standard rougher and cleaner circuit. Nice clean metallurgy from the 1% copper rock.
Depression of pyrite in porphyry copper flotation ... • Copper and collector detected on the surface of pyrite • More Si, Al, K, ... Flotation tests on plant rougher con (60% Cp, 18% Py) (Ore 1) Pyrite is Cu and xanthateactivated 0 20 40 0 4 8 12 16 20 time [min] pH 12 with Lime
Flotation Test of a High Silica Copper Oxide Ore in Yunnan Yang Zhao1,a 1,c 1 Faculty of Land Resource Engineering, ... A. Effect of grinding fineness on copper flotation The test mainly studies the influence between ... Sodium sulfide was used as activator for rougher flotation, where 1000g/t sodium sulfide, 150g/t butyl ...
1 Froth Flotation – Fundamental Principles Froth flotation is a highly versatile method for physically separating particles based on ... Table 1: Grade/recovery performance of a hypothetical copper ore flotation process. Product % Weight % Cu Assay Feed 100 2.09 Concentrate 10 20.0 ...
The mesh of grind test was conducted by rougher the copper/lead bulk flotation with 1500 g/t of lime, 1000g/t of Zinc sulfate, 500 g/t of sodium sulfate, 40 g/t of Z-200, 40 g/t of
The results obtained from the flotation tests indicate that the grinding fineness and the lime dosage have significant effects on the flotation of copper and arsenic.
A Copper Flotation Flowsheet Because the copper in this type of ore usually assays only plus or minus 1% copper, the porphyry copper operations must be relatively large in order to be commercial. ... thus some form of regrinding is necessary on the rougher flotation copper concentrate. It is not unusual to grind the rougher flotation ...
back to feed the rougher scavengers. test-work was done on-site to evaluate the possibility of using a flotation column as a pre-cleaner. a ... shows typical copper flotation performance by particle size for major operations that are using mainly conventional mechanical cells.
and Kinetics of Copper Flotation ... rougher flotation conditioning tank. The pH of the feed with respect to rougher flotation is measured in this conditioning ... To perform flotation tests, after preparing the feed pulp at the defined percent solids, collector was added to the
The copper flotation circuits upgrade copper content by a ... flotation tests. 264 Separation efficiency improvement of a low grade copper-gold... David Seaman et al. introduction ... streams and the Train 1 rougher concentrate A.
Flotation of copper sulphides assisted by high intensity conditioning (HIC) and concentrate recirculation Erico Tabosa, Jorge Rubio* ... batch tests simulating single-stage andsplit feedﬂotation circuits. Collector (kerosene) and frother(iso-
copper concentrator rougher flotation feed showed retention time gains on the order of 6 to 9 times when compared with conventional flotation equipment. This finding has the potential of reducing capital demands for rougher flotation circuit designs when incorporating the StackCell. The results from test …
Froth flotation circuit design and basic testwork requirements Froth flotation is a very important mineral concentration process that is used to recover a vast array of different minerals containing valuable commodities such as copper, lead, zinc, nickel, molybdenum, tungsten, …
Average feed grade were 0,17% Cu; 0,63 g/t Au and 53,5 g/t Mo. Rougher kinetics flotation tests were carried, obtaining the optimal flotation time and applying different first order flotation models (García –Zuñiga; Klimpel; Kelsall; modified Kelsalland Gamma) using MATLAB and finding the kinetic parameters and constants for each model.
laboratory flotation cell for copper ore separation testing. Conducting small scale flotation tests either in the laboratory or pilot plant does provide the for flotation. By way of example, the paper explains the scale up methodology for a copper ore, and flow rate, and residence times for the copper rougher flotation cells. .. Mineral.
Rougher flotation tests on a laboratory scale. The effectiveness of using either biosolids or humic acids as both collector and frother for the concentration of a copper sulphide ore was investigated through rougher flotation tests with a Denver cell at laboratory scale.
The flotation circuit consists of rougher, scavenger and cleaning circuits. The volumetric size of the cells in the rougher, ... flotation tests. In these tests, the copper recovery was increased from 89.79% to 94.56 for coarse (d80= +312 µm) and fine (d80= -312 µm) feed respectively. The
82% Au by 6-stage rougher flotation. Although finer grinding improved the copper recovery, primary grinding to a 80% passing size (P 80) of 150μm was the indicated optimum target with regarding the energy consumption in the comminution processes. The tests reveal that the mineralization type has substantial influence on the
2. 2. Flotation Procedure All the flotation test-work was done using the Denver laboratory machine with a 1.5l stainless steel flotation cell. The required mass of nickel-copper sulphide ore material ground to 70% passing 75 µm was weighed and placed in the flotation cell. This was followed by the addition of distilled water to about
able to run continuous flotation tests with drill core samples. since ... proven that mpp can achieve similar copper grade and recovery at the rougher stage in comparison to the rougher stage of a copper concentrator mill (santos, Gonçalves and Andrade, 2003).
gold flotation behaviour in different test conditions (Cu rougher feed aerated and non-aerated) using SIBX/XD5002 as collector, p80=38 µm. However, when the copper rougher tails (Test 1, Test 2 and Test 3) were reground, only 25% of the total gold lost was recovered in Test 1. Test 2 showed the highest gold recovery
Optimization of reagent dosages for copper flotation using statistical technique Y. VAZIFEH 1, E. JORJANI, ... rougher circuit of the Sungun Copper Concentrator Plant to achieve the maximum grade or recovery. By using this ... 16 sets of tests were necessary based on the N = 2n equation, where N and n are the number of tests and
Evaluating Copper Rougher-Scavenger Flotation Circuit Grade/Recovery Results View Larger Image A modal examination of the products produced by the copper flotation rougher-scavenger circuit reveal important information regarding the limits to the efficiency of the process, imposed by mineralogy, fragmentation and flotation capacity .