Raw Material Process Engineering · RMPE · GMIT

Process engineering,taught interactively.

Courses for every stage — Bachelor, Master & Doctor and professional Further Training — rebuilt as lectures you click through: animated machines, 3D models, live diagrams, glossary and quizzes.

  • 63 interactive lectures
  • 5 courses · 3 study levels
  • 45+ animated machines & 3D models
  • 18 process simulators
  • 115+ self-marking exercises
  • 320+ quiz questions
  • 300+ glossary terms
Prof. Dr. Purev-Ochir Togtokhbaatar Chemical Process Engineer · GMIT · purevochir@gmit.edu.mn
01

Bachelor · Raw Material Process Engineering (RMPE)

Bachelor

Core courses of the bachelor programme — every lecture is an interactive deck with animated machines, calculators, glossary and quizzes.

21 lectures · live

Chemical Reaction Engineering

RMPE410 · 4 ECTS. From the general mole balance to reactor safety, with live plots and worked examples.
You have marked 0 of 21 pages done.

L 01

Introduction

What chemical reaction engineering is for, the five model reactors, and the one balance equation that generates all of their design equations.

reactor familyfirst sizing
Open lecture
L 02

Balance Equations

The chemical system, stoichiometric coefficients, the extent of reaction, and the general mole balance: in, out, generation, accumulation.

extent calculatorcontrol volume
Open lecture
L 03

Tank Reactors

The hardware behind the perfectly-mixed assumption: impellers, baffles, the power characteristic and P/V scale-up.

stirred tankpower number
Open lecture
L 04

Tube Reactors

Plug flow and the differential mole balance, multitubular industrial forms, and why a PFR beats a CSTR for a positive-order rate.

tube bundlePFR vs CSTR
Open lecture
L 05

Conversion

Conversion X, the four design equations rewritten in X, and the Levenspiel plot — the rectangle and the area under the curve.

live Levenspiel plotSimpson
Open lecture
L 06

Reactors in Series

Cascades, the staircase construction, N tanks approaching a PFR, and why the order of a mixed train matters.

staircasecascade calculator
Open lecture
L 07

Rate Laws

Order, elementary reactions, the units of k, half-lives, non-elementary and Langmuir–Hinshelwood forms, reversible rate laws.

rate plotterfind the order
Open lecture
L 08

The Arrhenius Equation

The energy barrier, the Arrhenius plot, the 10 K rule of thumb, and why extrapolation is dangerous.

Arrhenius plotactivation energy
Open lecture
L 09

Isothermal Reactors

Stoichiometric tables, the feed ratio, the expansion factor, and every concentration written in terms of one variable.

live stoich tablegas expansion
Open lecture
L 10

Isothermal Reactors — Examples

The design algorithm end to end: SO₂ oxidation, an LHHW packed bed, N₂O₄ dissociation and a laboratory-to-plant scale-up.

worked exampleslive sizing
Open lecture
L 11

Batch Reaction Times

How long the vessel must be held, and the cycle time that decides how many batches a year the plant actually makes.

cycle-time Ganttintegral method
Open lecture
L 12

Damköhler Numbers

One dimensionless group that compares a laboratory reactor with a plant reactor, and conversion as a function of it.

X vs Dascale-up
Open lecture
L 13

Pressure Drop

The Ergun equation, the coupled pressure–conversion system, and why a gas-phase packed bed punishes you twice.

profile plotErgun
Open lecture
L 14

Active Intermediates

Radicals, the pseudo-steady-state hypothesis, Lindemann fall-off, and chain reactions from initiation to termination.

chain reactionfall-off
Open lecture
L 15

Enzymatic Reactions

Michaelis–Menten from the PSSH, the three inhibition types, and the chemostat with its washout limit.

Lineweaver–Burkchemostat
Open lecture
L 16

Residence Time Distribution

What a real reactor actually does: tracer experiments, E(t) and F(t), tanks in series, dispersion, conversion from an RTD.

RTD explorertracer data
Open lecture
L 17

Multiple Reactions

Selectivity and yield: the concentration lever, the temperature lever, series reactions and the optimum quench time.

series plotselectivity
Open lecture
L 18

Catalysis

The seven steps at a catalyst pellet, Langmuir isotherms, LHHW rate laws, and deactivation by sintering, coking and poisoning.

pellet cross-sectionLHHW
Open lecture
L 19

Nonisothermal Design

The energy balance joins the mole balance: adiabatic temperature rise, the X–T diagram, multi-bed converters with interstage cooling.

X–T diagramadiabatic rise
Open lecture
L 20

Unsteady-State Nonisothermal Design

Start-up transients, multiple steady states, and the ignition–extinction hysteresis a controller cannot fix.

ignition curvestart-up
Open lecture
L 21

Reactor Safety

Runaway and the Semenov diagram, time to maximum rate, the layers of protection, and the accidents that taught the discipline.

Semenov diagramlayers of protection
Open lecture
12 lectures · live

Hydrometallurgy

Basics and technology. ← → to move, G glossary, T contents, F presentation.
You have marked 0 of 12 pages done.

L 02

Thermodynamics & Kinetics

Will it leach, and how fast? Interactive Cu–H₂O Pourbaix diagram and the shrinking-core model, zone by zone.

Pourbaix mapshrinking core
Open lecture
L 03

Leaching I & II

Five methods from wells to autoclaves — animated heap-leach pad, Pachuca and stirred tanks, and the pressure autoclave.

heap padautoclave
Open lecture
L 04

Solvent Extraction I & II

Extract, scrub, strip, wash — the animated mixer–settler, extractant chemistry and a visual McCabe–Thiele staircase.

mixer–settlerMcCabe–Thiele
Open lecture
L 05–06

Electrolysis I & II

From EMF to the tankhouse: polarisation explorer, Faraday’s accounting, and winning vs refining side by side in one animated cell.

EW vs ER cellsFaraday
Open lecture
L 07

Copper Hydrometallurgy

Three mineral families, the ferric–ferrous engine, and a station-by-station tour of the full SX–EW plant.

plant tourErdenet · Achit Ikht
Open lecture
L 08

Zinc Hydrometallurgy

The RLE route: animated fluidised-bed roaster, iron’s gatekeeping, and the hydrogen-overvoltage miracle that makes Zn EW possible.

roasterZn cell
Open lecture
L 09

Aluminium

The Bayer NaOH merry-go-round and the Hall–Héroult cell — why water purifies aluminium but molten salt must reduce it.

Bayer circuitHall–Héroult
Open lecture
L 10

Uranium Hydrometallurgy

Acid vs carbonate chemistry and the ISR wellfield in cross-section — including Mongolia’s own Zuuvch-Ovoo project.

ISR wellfieldZuuvch-Ovoo
Open lecture
L 11

Gold Hydrometallurgy

Oxidant + ligand or nothing: Elsner’s equation, the animated CIP carbon train, refractory ores and the cyanide-free frontier.

CIP trainBoroo · Gatsuurt
Open lecture
L 12

Ion Exchange · Carbon · Precipitation

Columns and breakthrough curves, activated carbon’s 3000 m²/g, and separations run with nothing but a pH dial.

breakthroughpH map
Open lecture
L 13–14

Biohydrometallurgy & Bioleaching

Microbes as metallurgists: contact vs non-contact mechanisms, thiosulfate vs polysulfide pathways, bio-heaps, BIOX — and biomining in orbit.

mechanism mapBioRock
Open lecture
15 lectures · live

Fossil Fuel Technology

RMPE403 · coal, oil, gas and synthesis gas — course page. ← → to move, G glossary, T contents, F presentation.
You have marked 0 of 15 pages done.

L 03

Solid Fuels: Classification and Characterisation

A coal is only as useful as the numbers on its certificate, and every one of those numbers depends on how it was measured and on which basis it is reported.

basis converterASTM D388
Open lecture
L 07

Kinetics of Solid Fuel Conversion

Equilibrium says where a coal particle ends up; rates, pores and films decide whether it gets there inside the reactor.

ThieleDAEM
Open lecture
L 08

Pyrolysis, Carbonisation and Coking

Heat without air turns coal, lignite and wood into char, tar and gas; the coke oven is the art of steering that split.

coke ovenpyrolysis
Open lecture
L 12

Coal Liquefaction and Hydrogenation

Coal is a hydrogen-deficient oil: liquefaction is the art of breaking it gently and paying for the hydrogen.

BergiusH₂ balance
Open lecture
02

Master & Doctor · Resources and Technology

Master & Doctor

Master class for the master programme, also open to doctoral candidates of the GMIT “Resources and Technology” PhD programme — research-led lectures built on real GMIT laboratory data.

10 lectures · live 🔒 Master & PhD accounts

Master class · PDRW 502

Process Design in Raw Material and E-waste Treatment — 321 slides, 3D equipment models, time-stepped simulations, a practice arcade in every lecture and a capstone plant-design project.
You have marked 0 of 10 lectures done.

Open the master-class hub →
L 02

Lithium: raw materials, extraction and battery recycling

lithium brines and solar ponds, spodumene and zinnwaldite processing, the COOL CO2-leaching process, lithium-ion battery recycling routes, reagent and waste balances, climate footprint and the Mongolian perspective.

Lithium todayBrinesHard rock31 slides
Open lecture
L 03

Deep-sea manganese nodules: leaching and solid-state chlorination

polymetallic nodules of the Clarion–Clipperton Zone, why MnO2 needs reductive leaching, NH4Cl solid-state chlorination in sublimation reactor and rotary kiln, Mn electrowinning and MnSO4·H2O for batteries, and the deep-sea mining debate.

Nodules as a resourceLeaching chemistrySolid-state chlorination30 slides
Open lecture
L 05

Feasibility studies and project development: from laboratory data to a bankable design

study levels and accuracy, Mongolian and international reporting rules, ore characterisation and back-calculation of ICP data, metallurgical balances, equipment sizing, CAPEX/OPEX estimation, NPV/IRR/payback with sensitivity, royalty, software and AI tools, and how to write the report.

Studies and rulesPlanning and toolsOre characterisation32 slides
Open lecture
L 07

Urban mining of e-waste: physical and chemical processing routes

urban mining, dismantling, comminution, magnetic, eddy-current, density and electrostatic separation with their physics, pyrometallurgy in copper smelters, hydrometallurgical lixiviants, shrinking-core kinetics, bioleaching, nanometals and a Mongolian processing decision.

Urban miningPhysical processingPyrometallurgy32 slides
Open lecture
L 08

Electrochemically enhanced metal recovery from e-waste and ionic liquids

Faraday, Nernst and mass transfer for electrowinning; copper, gold, silver and neodymium recovery from e-waste; slurry and electrogenerative cells; ionic liquids and deep eutectic solvents for electrodeposition.

Why electrochemistryCopperGold and silver33 slides
Open lecture
L 09

Advances in mineral identification and mineral synthesis

UV fluorescence, ED-XRF, MLA/QEMSCAN automated mineralogy, XRD with phase-identification game, Raman, hyperspectral imaging, handheld XRF/LIBS, machine learning and the synthesis of minerals.

Seeing mineralsAutomated mineralogyDiffraction & spectroscopy33 slides
Open lecture
L 10

Design project: an e-waste processing plant for Mongolia

Capstone design studio: market, feed definition, flowsheet, mass balance, lab results, equipment sizing, CAPEX/OPEX, NPV and risk for a pre-feasibility PCB/e-waste plant in Mongolia, built on the previous cohort's project report.

Project briefMarket and feedFlowsheet and lab36 slides
Open lecture
03

Further Training · GMIT · GIZ · Мэдлэгийн төв

Further Training

Эрдэс боловсруулалтын шинэ технологиуд ба судалгааны арга зүй — a 3-day (18 h) professional course for mineral-processing, mining and laboratory engineers, plus a one-day hydrometallurgy course. In Mongolian with English technical terms.

5 decks · 134 slides · live 🔒 Full-access accounts

GMIT further training

Мэргэжил дээшлүүлэх сургалт — three one-day modules, a one-day hydrometallurgy course and a 30-minute demo for companies. Nine simulators, calculators, exercises, tests and lab sheets built in.
You have marked 0 of 5 decks done.

Open the training hub →
18 simulators · live 🔒 Signed-in students

Interactive simulators

A crushing and grinding circuit from run-of-mine rock to a flotation feed, the leaching and electrochemistry that follow it, the automated mineralogy that measures what comes out of all of it, and a complete hydrogen-fluoride plant run from its flow diagram, and the fuel-conversion tools of Fossil Fuel Technology — coal analysis, combustion, gasification, syngas synthesis, coking and crude distillation. Nothing to install — change a number and the whole calculation redoes itself in front of you.

Jaw crusher simulator: crusher station process mimicCR-101 · Primary crushing

Jaw Crusher CR-101 — Primary Crushing Station

A primary crushing station on an operator HMI: apron feeder, grizzly, jaw chamber and discharge conveyor, with the Whiten crusher model, Bond power draw, a chamber-level PI loop, liner wear and tramp-metal faults.

Whiten modelBond powerLIC-101 PI loopfault injection
Open the simulator
SAG mill simulator: charge cross-section and grinding circuit mimicML-201 · SABC circuit

SAG Mill ML-201 — SABC Grinding Circuit

A SAG–ball mill–pebble crusher circuit with cyclones, run from an operator HMI: Morrell power model, Whiten population balance, Plitt cyclone model and a bearing-pressure controller, with hard-ore, worn-liner and overload scenarios.

Morrell C-modelpopulation balancePlitt cyclonesbearing-pressure PID
Open the simulator
Ball mill simulator: 3-D mill chargeML-301 · closed circuit

Ball Mill ML-301 — Closed-Circuit Grinding

A secondary ball mill in closed circuit with a hydrocyclone cluster on an operator HMI: Bond with Rowland efficiency factors, Austin population balance, Plitt cyclones and Morrell power, with sump-level, density and P80 control loops and the circulating load settling in real time.

Bond + EF1–8population balancePlitt cyclonesLIC / DIC / P80 loops
Open the simulator
Copper flotation simulator: cell cross-section and froth cameraFL-300 · rougher to column

Copper Flotation Circuit — Rougher to Column Cleaner

Rougher, scavenger, regrind and column-cleaner flotation on an operator HMI: rate constants from bubble-surface-area flux and froth recovery, Savassi entrainment, cell-level PID loops and live grade–recovery curves.

k = P·Sb·Rfentrainmentlevel PIDgrade–recovery
Open the simulator
CuFloat simulator: concentrator process flow diagramCuFloat · concentrator PFD

CuFloat Flotation Simulator

A copper flotation concentrator — rougher, scavenger, regrind and cleaner banks fed by SABC grinding — solved to steady state every second, with a plant-metallurgist AI tutor that runs on your own PC.

flotation kineticsgrade–recovery9 hidden faultslocal AI tutor
Open the simulator
CIL leaching simulator: tank train cutawayTK-300…307 · CIL train

CIL Leaching Plant — TK-300 to TK-307

An eight-tank carbon-in-leach train on a control-room HMI: Habashi and second-order leach kinetics, Fleming k–n carbon adsorption, cyanide, oxygen and pH control loops, and an HCN safety interlock.

CIL trainFleming k–n3 PI loopsHCN interlock
Open the simulator
Gold leach tank simulator: 3-D stirred tankTK-201 · leach reactor

Leach Reactor TK-201 — Agitated Cyanide Leach

A single agitated leach reactor treated as a chemical reactor: Habashi mixed-control kinetics, oxygen mass transfer, Zwietering suspension and tanks-in-series residence time, with cyanide, pH and dissolved-oxygen loops and an HCN interlock.

Habashi kineticskLa & NjsN tanks in seriesHCN interlock
Open the simulator
Cyclic voltammetry simulator: electrode and diffusion layerPGSTAT-401 · voltammogram

Electrochemical Workstation — Cyclic Voltammetry

A three-electrode potentiostat with the feel of commercial electrochemistry software: finite-difference diffusion with Butler–Volmer kinetics, iR drop, double-layer current and autoranging; CV, LSV, chronoamperometry, rotating-disk and Tafel scans with nine electrolyte presets.

CV · CA · RDE · TafelNicholson k°Randles–Ševčík9 presets
Open the simulator
MLA-SEM simulator: classified mineral mapMLA Dataview · XBSE

MLA-SEM — Automated Mineralogy Workstation

A field-emission SEM with xT-style control software and an MLA measurement suite: BSE/SE imaging, EDS spectra, XBSE and GXMAP measurements, modal mineralogy, liberation and Dataview-style reports on porphyry copper ore.

BSE / EDSXBSE · GXMAPliberationDataview reports
Open the simulator
Batch reactor simulator: jacketed reactor P&IDR-101 · jacketed reactor

BatchLab Pro — Batch Reactor Simulator

A jacketed, agitated batch reactor run from a control-room screen: mass, energy, jacket and pressure balances solved as it runs, a PID loop, an automatic charge-to-clean sequence, alarms with safety trips and injectable faults. Five reaction schemes including shrinking-core ore leaching, a thermal-safety study (MTSR, Stoessel class, Semenov), scale-up and a virtual laboratory with unknown samples.

live P&IDrunaway & MTSRleaching SCMvirtual lab
Open the simulator
HF plant simulator: live process flow diagramAHF plant · 29 units

AHF Plant — Bor-Öndör 1,000 t/d

The whole anhydrous-HF plant on one operator screen: spar drying, DCDA acid plant, three-zone rotary kiln solved along its 40 m bed, condensation and distillation, tail-gas scrubbing and product storage, with eight PID loops and a safety system that trips the kiln feed.

40 m kiln profileDCDA converter8 PID loops · SIS14 scenarios
Open the simulator
Screenshot: Gold CIL site · 3-D walkthroughGold CIL site · 3-D walkthrough

Gold CIL Plant — 3D Site Walkthrough

A whole gold operation as one place you can stand in: the open pit and waste dump, crushing and the conveyor line, the mill and cyclone cluster, seven CIL tanks, ADR and the gold room, the tailings line out to the TSF, the switchyard and the water mains. Take control of a worker and walk it on foot, or tick the buildings off to see what stands behind them.

walk it on foot17 viewpointslayer togglesday → night
Open the simulator
Screenshot: Van Krevelen · coal rankVan Krevelen · coal rank

Coal Analysis & Calorific Value

Proximate and ultimate analysis on every basis, gross and net calorific value, ASTM D388 rank and a live Van Krevelen plot — with Tavan Tolgoi- and Baganuur-type presets.

ar · ad · db · dafASTM D388Python · SCORM
Open the simulator
Screenshot: Flame temperature · λ sweepFlame temperature · λ sweep

Fuel Combustion & Flame Temperature

Air demand, wet and dry flue gas, water and acid dew points, adiabatic flame temperature and boiler efficiency for any solid, liquid or gaseous fuel.

λ sweepflue gasPython · SCORM
Open the simulator
Screenshot: C-101 · crude columnC-101 · crude column

Crude Distillation Cut Simulator

Five crudes with realistic TBP curves, including an indicative Tamsag-type waxy crude: move the cut points and watch the product yields and the column respond.

TBP curvescut pointsPython · SCORM
Open the simulator
Screenshot: Gasifier · carbon boundaryGasifier · carbon boundary

Gasification Equilibrium

Gibbs minimisation for coal, lignite, petcoke or wood with O₂ or air and steam: syngas composition, cold-gas efficiency, adiabatic temperature and the carbon boundary.

Gibbs minimisationadiabatic TPython · SCORM
Open the simulator
Screenshot: Fischer–Tropsch · ASFFischer–Tropsch · ASF

Syngas Synthesis Explorer

Fischer–Tropsch ASF distribution, methanol equilibrium with Graaf constants and the shift duty to reach any H₂/CO ratio — three calculators in one.

ASF αmethanol K(T)Python · SCORM
Open the simulator
Screenshot: Coke oven · heating wallsCoke oven · heating walls

Coke-Oven Battery

Transient heat conduction across the charge, plastic layers moving to the centre, coking time for any oven width, and coke, tar and gas yields.

coking timeplastic layersPython · SCORM
Open the simulator

More tools are on the way — see them all on the tools page.

Course information

How the course is run

Evaluation system

50%
Final exam
30%
Student presentation
10%
Laboratory
10%
Homework

Course literature

  • Free: Hydrometallurgy — Fundamentals and Applications, 2nd ed., Springer/TMS
  • Habashi: A Textbook of Hydrometallurgy, 2nd ed.
  • Schlesinger et al.: Extractive Metallurgy of Copper, 5th ed.
  • Adams (ed.): Gold Ore Processing, 2nd ed.
  • Marsden & House: The Chemistry of Gold Extraction, 2nd ed., SME

How to study with these lectures

  • Click any underlined term — the definition opens in place (G for the full glossary)
  • Tap the parts of every machine diagram — the labels are exam material
  • Repeat each end-of-lecture quiz until you score full marks
  • The 2026 Frontier chips are the presentation topics
GMIT
monprocess.org

Interactive lecture series for the Raw Material Process Engineering programme at the German-Mongolian Institute for Resources and Technology.

Contact

Prof. Dr. Purev-Ochir Togtokhbaatar Chemical Process Engineer
Raw Material Process Engineering (RMPE)
German-Mongolian Institute for Resources and Technology
OfficeGMIT campus, Nalaikh, Ulaanbaatar
HoursBy appointment
Source material Built on the GMIT RMPE course material, restructured and rebuilt as interactive web lectures by Prof. Dr. Purev-Ochir Togtokhbaatar.
Photographs Diagrams and machine artwork drawn for this edition.
Your data Signing in records the time you sign in and which lectures you open, so your lecturer can follow class progress. Lecture tick-marks and quiz scores stay in this browser only.
Lecture card photographs are from Wikimedia Commons and are used under their respective public-domain, CC0, CC BY or CC BY-SA licences; the photographer and licence for each image are recorded on the image in the site media library.
© 2026 Purev-Ochir Togtokhbaatar · GMIT. Course content for teaching use. Privacy · Report a mistake · Lecturer sign-in · Back to top