Used ethylene glycol (EG) is recycled into high-quality antifreeze products using our patent-pending Flash Fractional Distillation System.

Our recycled EG meets industry standards governed by ASTM for recycled and virgin engine coolants including ASTM D3306, D6210 & E-1177-09.

The benefits of Using Flash Fractional Vacuum Distillation

HAZ~MAT’s internally designed and manufactured Flash Fractional Vacuum Distillation System produces highly concentrated (>99%) glycol or blended glycols (antifreeze) both of which meet ASTM specifications.

A single column system provides simple “flash” vacuum distillation, most common for pre-mixed antifreeze blends.

Addition of a second column allows higher purity by utilizing a specifically designed packing material in the column that provides surface area for enhanced separation and rectification of vapor mixture. This allows rising glycol vapor to undergo a series of vaporization and condensation steps that enrich glycol vapor and condenses impurities.

The result is highly concentrated glycol (EG or PG) product (>96%) of high purity (>98%).

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