Statistical Methods For Mineral Engineers Jun 2026

: Moving beyond "gut feeling" to using statistical tools (many of which are built directly into Excel ) to prove whether a process change truly improves recovery or throughput. Key Topics Covered

Maintaining a stable processing plant requires continuous monitoring. Statistical Process Control (SPC) uses time-series charts to differentiate between "common cause" variation (routine, expected fluctuations) and "special cause" variation (mechanical failures, sudden ore hardness changes).

Statistical Methods for Mineral Engineers In modern mineral processing and extractive metallurgy, operations succeed or fail based on data precision. Mineral engineers manage highly variable raw materials, complex chemical processes, and massive equipment networks. Relying on intuition or simple averages to optimize these systems invites costly inefficiencies. Statistical methods provide the mathematical framework required to convert raw operational data into actionable engineering decisions, ensuring process stability, maximizing recovery, and minimizing waste. Statistical Methods For Mineral Engineers

: Essential for establishing relationships between measurements, such as modeling how reagent dosage affects recovery rates. 2. Experimental Design (DoE)

: Measures the spread of the process relative to the specification limits. It assumes the process mean is perfectly centered. Cpkcap C sub p k end-sub : Adjusts the capability estimate for a shifted mean. A Cpkcap C sub p k end-sub : Moving beyond "gut feeling" to using statistical

Data reconciliation using statistics to check for consistency in mass flow across conveyors.

Full or fractional factorial designs allow engineers to screen multiple factors (reagent dosage, pulp density, impeller speed) in a minimal number of test runs. Statistical Methods for Mineral Engineers In modern mineral

Shewhart, CUSUM, and EWMA charts track process stability over time. For example, a shift in a grinding mill's power draw chart can give early warning of liner wear or feed size changes.