Are High Caustic Soda Prices Messing With Your Budget?
Caustic Soda prices have risen to unprecedented levels. Truckload costs for Caustic Soda (sodium hydroxide) are currently greater than $1,000 to $1,200 per dry ton. Just a year ago costs were one–half of this amount.
Aries Magnesium Hydroxide may be your answer. It can reduce your wastewater neutralization costs dramatically. That’s because you will typically use 27% less Magnesium Hydroxide than Caustic Soda/sodium hydroxide. That’s on top of the fact that Magnesium Hydroxide will cost less!
Economic and Performance Comparisons for Aries 100 Magnesium Hydroxide and Caustic Soda
| Comparison Basis | Caustic Soda Sodium Hydroxide | Aries 100 Magnesium Hydroxide |
| Product form | 50% solution – NaOH | 60% solids slurry – Mg(OH)2 |
| Raw material cost (ton per ton basis) | Fluctuates widely with supply; often more expensive than Mg(OH)2 | Generally competitive with caustic soda; pricing consistent |
| Alkali requirement: ✓ per ton H2SO4 ✓ per ton HCl ✓ per ton HNO3 NaOH Consumption vs. Mg(OH)2 | 1630 dry lb. | 1190 dry lb. |
| Capital investment | Cost associated with safety considerations; no agitated tank required; freeze protection needed for 50% caustic | Agitated storage tank required |
| Residence time | Extremely fast acting to complete neutralization | Moderately fast acting to 95% of neutralization; more controllable process |
| Maximum pH in overtreatment | 14 | 9 |
| Sludge produced | High volume, gel-like with heavy metals | Dense, low volume with heavy metals; easier to dewater |
| Safety | Hazardous material requiring rigorous safety procedures. Sara 313 listed. | Non-hazardous material |
| Environmental | Sodium ion discharge; can easily overshoot desired pH | Buffers at pH 9 |
Check out some other advantages of using Magnesium Hydroxide.
Contact Aries to review the potential for conversion to Magnesium Hydroxide: (315) 346-1489 or aries@arieschem.com.
Aries Technical Sales Staff is available to perform a site survey to determine Magnesium Hydroxide’s applicability to your process. Aries can provide a complete Magnesium Hydroxide feed and control system for trials. Aries technical staff can design a permanent Magnesium Hydroxide storage, feed and control system for your facility.