Flotation

Arsenopyrite Flotation & Depression – Arsenopyrite Rejection

arsenopyrite flotation & depression Floatability of arsenopyrite as a function of initial concentration of sodium isopropyl xanthate at various pH values.

how does pax xanthate dosage affects arsenic flotation recovery Recovery of arsenic as a function of pH in flotation of an arsenopyrite ore assaying 12.5% As (27.2% FeAsS) using 30 and 60 g/ ton sodium isopropyl xanthate and 70 g/ton frother.

Flotation and depression control of arsenopyrite through pH and xanthate as the collector.

Arsenopyrite Rejection

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By | 2017-03-17T19:06:43+00:00 January 13th, 2017|Categories: Flotation|Comments Off on Arsenopyrite Flotation & Depression – Arsenopyrite Rejection

Flotation Material Balancing Excel Solver: Mass Balance Calculations Example

example-material-balance-calculations-using-excel-spreadsheetFor a flotation circuit, material balance calculations define an engineering problem where flow parameters between unit operations are partly known. The purpose of a material balancing is to mathematically examine the known flow parameters to solve for the unknown flow parameters. Two main types of material balances are commonly made:

  • design material balance
  • operating plant material balance.

The design material balance is typically faced during plant design when the flotation test work results and a flowsheet diagram are the only known values. Design material balance purpose is to find values for the unknown flow parameters.

Operating flotation

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By | 2017-03-17T19:11:56+00:00 December 3rd, 2016|Categories: Flotation, Tools of a Metallurgist|Comments Off on Flotation Material Balancing Excel Solver: Mass Balance Calculations Example

Flotation Simulation & Modelling Software to Improve Grade & Recovery Metallurgy

In this video EMC Supasim flotation simulation program is used to simulate the performance of a copper lead zinc plant in southern Spain. Flotation kinetics of key streams are generated by conducting bench scale rate tests on either a laboratory prepared sample of mill feed or grab samples of pulp taken from the plant. And this type of rate test is known as a hot float. A grab sample may or may not be representative and if not, the flotation kinetics it generates will not be a true reflection of the streams floatation characteristics.

  • If this happens and you cannot repeat the test, what do you do?
  • How to use flotation kinetics to determine what is required to improve plant recovery?

flotation_circuit_flowsheet_simulatorWhat you see here is a flow sheet for the copper lead

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By | 2017-03-17T19:12:21+00:00 November 24th, 2016|Categories: Flotation, Tools of a Metallurgist|Tags: |Comments Off on Flotation Simulation & Modelling Software to Improve Grade & Recovery Metallurgy

How to Perform a Laboratory Flotation Test

how-to-run-a-flotation-test-on-plant-samplesThis is an overview of setting up and conducting a flotation rate test. The test is a means of determining the flotation characteristics of an ore. It is conducted in a laboratory scale cell usually with a volume of two point five litres. The intention is to generate relationships of cumulative recovery, mass pull and grade versus time and use these to evaluate the floatability of metal, mineral and gang. The video is not intended to be a detailed explanation of how to conduct a rate test. For that, download the test procedure shown here below. flotationThe purpose of this

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By | 2017-03-17T19:12:22+00:00 November 23rd, 2016|Categories: Flotation, Laboratory Procedures|Tags: |Comments Off on How to Perform a Laboratory Flotation Test

How to Analyse Flotation Test Results

By | 2017-03-17T19:12:27+00:00 November 22nd, 2016|Categories: Flotation|Comments Off on How to Analyse Flotation Test Results

Timed Flotation Test & Cumulative Grade Recovery Curve

grade-recovery-over-timed-flotationApart from conducting a rate test in the correct manner, it’s important to collect the right number of concentrates and at the right times; doing this will ensure that the data you generate maximizes your analysis of flotation response. To properly define the relationship between recovery and time, you need a minimum of four concentrates and four data points on the graph. flotation_recovery_over_timeThe timing of these concentrates is critical to ensure that the three major characterizing aspects of the recovery time curve are defined accurately. These aspects are the initial slope of the curve; the determination

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By | 2017-03-17T19:12:28+00:00 November 22nd, 2016|Categories: Flotation, Laboratory Procedures, Tools of a Metallurgist|Tags: , |Comments Off on Timed Flotation Test & Cumulative Grade Recovery Curve

Mineralogy & Flotation: Floatability VS Selectivity Test Assessment

flotation_1Mineralogy is the driving force behind flotation performance. A flotation batch and rate test measures this as mass pull recovery and concentrate grade. The real data from a rate test can be processed to determine the flotation kinetics of metal, mineral and gangue. flotation_rate_determination_testWhat we cover here is what are kinetics and what do they mean. Special attention is paid to the definition of floatable gangue. How flotation kinetics are used to understand and optimized flotation performance is covered in the next series. Two other articles describe how a rate test is conducted and what

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By | 2017-03-17T19:12:29+00:00 November 22nd, 2016|Categories: Flotation, Mineralogy, Tools of a Metallurgist|Comments Off on Mineralogy & Flotation: Floatability VS Selectivity Test Assessment

Flotation Kinetics: Mass & Water Recovery VS Entrainment & Mineralogy

flotation_1

This covers the recovery of entrained solids with water and the relationship between mineralogy and flotation performance; both are described in terms of flotation kinetics. The starting points for the relationship between mass and water recovery other products of a flotation rate test. flotation_entrainmentIn addition to concentrate mass, metal or mineral and floatable gangue. If the mass of water in each concentrate has been measured, then a fourth set of kinetics can be added which defines water recovery. This is useful if dealing

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By | 2017-03-17T19:12:32+00:00 November 21st, 2016|Categories: Flotation, Mineralogy, Tools of a Metallurgist|Tags: |Comments Off on Flotation Kinetics: Mass & Water Recovery VS Entrainment & Mineralogy