Rare earth minerals, pilot plant, ore, extraction, processing, calcination, flotation, bastnaesite, monazite, allanite, euxinite, extraction,

REE Pilot Plant Processing

ANZAPLAN uses its in-house technical center and selected machine manufacturer’s equipment for tailor-made process development and to provide samples for end user approval. This can be a mineral concentrate or the precipitated mixed REE compounds.
ANZAPLAN’s bench scale and pilot plant processing facilities cover the value chain of REE ore processing from the liberation and concentration of REE bearing minerals to extraction of REE’s and purification of mixed REE compounds as final products.
Besides the more conventional REE bearing minerals like bastnaesite or monazite we especially develop specific processing and extraction routes tailored for the less well known REE bearing pay minerals such as apatite, eudialyte, allanite, zircon, euxenite, fergusonite, pyrochlore, florencite and churchite taking full advantage of its close link between analytical and engineering department. 

Concentration of REE bearing minerals
In our pilot plant REE ore mineral concentrates are produced and provided for customer approval. Since REE bearing minerals are usually present in minor quantities special attention is paid to potential by-products which may create additional revenue.
The ANZAPLAN technical center is well equipped and experienced to test and evaluate all steps for concentration of REE bearing minerals. Besides the various conventional comminution and concentration technologies, highly innovative processing techniques (e.g. electrodynamic comminution) are available and allow for selective liberation of REE-bearing minerals especially in coarse grained pegmatite material.
High gradient magnetic separation, electrostatics, gravimetric and/or flotation tests can be carried out to further concentrate REE bearing minerals. If applicable a temperature treatment is performed in static and rotary furnaces at ANZAPLAN’s technical center to drive off volatile species or change crystal structure to improve leaching results.

Extraction of REE’s from a mineral concentrate
A tailor-made processing route for efficient extraction of REE’s from the mineral concentrate will be developed at ANZAPLAN’s technical center.
In hydrometallurgical tests leaching and purification to high-quality mixed REE compounds is performed. An optimized route for the specific leaching process along with hydrometallurgical purification by precipitation and separation of interfering chemical elements is developed specifically for the obtained mineral concentrate. Special attention is paid to the by-products which may be created during leaching and purification.
A final precipitate of mixed but separated into LREE and HREE compounds will be provided for customer approval.