The MaxR System is the key to getting the best results out of your treatment processes. Our unique system uses fewer chemicals while producing better results.
What we offer
An Improved Process
Between pulling them out of the ground, and using them for a variety of commercial applications, the valuable metals that your mining business produces need to go through several stages of treatment. These processes improve metal purity and help eliminate waste materials, for a product that can meet the high standards expected in the mining industry. Traditionally, these processes involve the addition of chemical reagents into the process stream to drive precipitation and form solids. Solids precipitated in this manner form very finely divided particles which settle slowly, forming a low density sludge that is difficult to dewater.
The MaxR® System solves this problem, by incorporating recycled thickener underflow to serve as precipitation sites for fresh solids. The underflow solids mix with the incoming feed. This allows for a process that requires fewer chemicals.
The newly precipitated solids attach to and grow on the existing particles, creating larger crystals of increased density. The ultimate discharge slurry density of a material (solids concentration) can be increased by 5-30 wt% over conventional treatment. This higher density (and by extension, the improved dewatering characteristics of the solids) also creates a system by which the dewatering rate is significantly increased. This means less dewatering equipment is required, saving your business on related equipment costs.
In addition, if mechanical dewatering is used, the dewatering rate is greatly increased due to the high density of the feed sludge and improved dewatering characteristics of the solids. As a result, the size and the cost of the dewatering equipment are reduced.
Typical Applications
The MaxR system can be applied in any application where chemical precipitation and flocs agglomeration occurs and where the process can be modified to control the reaction process. Applications where FLSmidth has obtained process improvement include:
● Magnesium hydroxide production
● Acid mine drainage (metal hydroxides and CaSO4)
● Steel mill acid pickle (FeCl3, HCl)
● Water softening [Ca(HCO3)2, Mg(HCO3)2, SiO2]
● Rare earth oxide production (lead sulfide)
● Chemical plant wastewater (calcium fluoride)
● Agra-fuel ethanol production (CaSO4, metal oxides)
● Industrial wastewater from Latex manufacture (magnesium hydroxide)
● Fluoro-hydrocarbon manufacture wastewater (calcium fluoride and arsenic)
● Aluminum reduction facility wet scrubber (calcium fluoride and sulfate)
● Power plant wastewater (metal selenium sulfites)
Caustic-chlorine/brine treatment
FLSmidth has successfully applied the MaxRTM process for use in brine treatment, where removal of soluble magnesium, silica and other metals as precipitated solids is required. Several installations have enabled us to demonstrate the MaxR process performance in saturated brine applications. Specifically at the most recent installation in Louisiana, we had the opportunity to compare the MaxR process versus a conventional treatment system that has yet to be upgraded to a MaxR process. MaxR treatment technology generated superior effluent quality, produced a more dense sludge and reduced the quantity of chemicals required.
The MaxR System brings with it a number of significant advantages:
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