The Coleraine Laboratory is a fully equipped mineral processing laboratory for both laboratory and pilot scale testing. Our main emphasis is on assisting the development of the mineral resources of the state of Minnesota in an environmentally sound manner. A partial list of equipment is given below:
Crushing – from 8-inches down
Jaw crushers
Gyratory crusher
Roll crushers
Hammer mill
Pulverizers
Grinding
Rod Mills from 5 feet diameter to 8-inches diameter
Ball Mills from 6 feet diameter to 6-inches diameter
Autogenous Mill 6 feet diameter
Classification
Screening plant
Fine screens
Screw classifiers
Cyclones 1 to 15-inches diameter
Density separators – Laboratory and Pilot scale
Rake classifiers
Magnetic Separation
Convention drum separators from 4 feet to 6-inches in diameter
Davis Tubes
Wet High Intensity – Laboratory and Pilot scale
Dry High Intensity – Laboratory
Induced rolls – Pilot scale
Dry Magnetic Cobbing – Pilot scale
Gravity Separation
Spirals
Tables
Reichart Cone
Falcon Concentrator
Jig
Diester Concentrator
Flotation
Conventional cells from 50 cubic feet to 1 liter
Column flotation – 3-inch and 8-inch diameter columns
Electrostatic Separation
Laboratory Unit
Continuous Pilot Plant Unit with rougher, cleaner, and recleaner stages
Thickeners
Laboratory settling rate determinations
Pilot Plant Units ranging from 3 feet to 6 feet in diameter
Filtration
Pressure filters – batch
Disk Filters – 2 and 6 foot diameter dual disks continuous filters
High Temperature
Electric furnaces from 1-inch diameter to several square feet.
Linear hearth gas fire pilot scale unit
Induction furnaces with capacities up to 200 pounds.
Pot-Grate furnace to simulate pellet induration
Mini-pot-grate furnace
Biomass gasifier
Balling disks
Sinter-pot to simulate sinter production
Hydrometallurgy
Laboratory and pilot scale leaching tanks
Reagent pumps
Batch 1-liter autoclaves for pressure leaching
Solvent extraction – extraction and loading isotherms
Electro-winning – Laboratory cell
Analytical
Indirectly Coupled Plasma Spectometer
Automated titration
LECO carbon-sulfur analyzers
CVAFS for mercury
Specific ion electrodes
Ohio Lumex on-line continuous mercury analyzer
High resolution microscope with digital camera
Ancillary Equipment
Fork lift trucks
Dump truck
Front end loader
Conveyors
Pumps
Dust collectors
Machine Shop