+61 (0) 8 9240 4357 info@processIQ.com.au

Current Courses & Seminars

PROCESS IQ TECHNICAL SEMINAR

Optimising your Mining Operations

Location:                Perth

Venue:                    Fraser Suites, 10 Adelaide Terrace

Date:                       Friday 17 May 2019

Time:                       8.00am – 4.00pm

 

Join us for a day of discussion around optimising minerals processing performance utilising real-time measurement & modelling and advanced process control.   Find out how you can use the latest technology to improve your mineral processing plant.

TOPICS
  • Orway IQ – Official Launch
  • Mineral Process Optimisation
  • Data Analytics, Techniques and Tools
  • Advanced Process Control
  • Cyanide and Carbon Measurement, Gold Leach Circuit Control
  • Optimising Leach Performance: Gold Leach Kinetics
  • Milling Optimisation
  • Ultrasonic Density Measurement
GUEST SPEAKERS

 

To reserve your place, contact Paula Cairns on email paula@processiq.com.au

IMPROVE LEACH PERFORMANCE WITH OXYGEN DEMAND TEST WORK

Availability:                              May 2019

Location:                                   Australia

To book:                                    Contact Stuart Nuttall

Phone:                                       08 9240 4357

*  FULLY BOOKED  *

Typically, Gold leach performance in a CIP/CIL circuit is directly determined by the kinetics of the following equation:
4 Au + 8(NaCN) +O2 + 2 H2O = 4 NaAu(CN)2 + 4 NaOH
In cases where there is limited residence time, optimising the leach kinetics can have significant benefit to recovery.

The Reactivity Number (RN) is a characteristic of the ore type and is useful in determining the effectiveness of a pre-oxidation stage, or to assess the benefits (cyanide saving, improved kinetics) of possible future pre-oxidation.

  • Characterization of feed ores (O2 & CN demands)
  • Cyanide and oxygenation dosage systems – audit & specification
  • Determination of optimal NaCN & DO ratios to maximize kinetics
  • Dosage of reagents like peroxide and Pb-nitrate

Influence of grind size – specifically UFG

The “blue line”, as shown in the above figure, indicates a CIL circuit that has a low dissolved oxygen (DO) profile in the initial critical stages of the circuit. Ideally, in order to achieve the optimal NaCN / DO ration of 20, the objective is to target the red line. This will help maximise leach kinetics and improve recovery. 

To discuss further, please email Stuart Nuttall on email stuart@processiq.com.au

Process IQ Pty Ltd

Unit 1 / 23 Gibberd Road Balcatta, WA 6021 Western Australia Tel: +61 (0) 8 9240 4357 Fax: +61 (0) 8 6316 0486 Email: info@processiq.com.au