Glycols as an adjuvant in treating wastes using the Molten Salt Oxidation process
US7288234B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2003 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | May 26, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62D2101/06
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An improved system and method for using polyethylene glycol (PEG) as a processing fluid additive for safely and effectively treating water-wet hogout propellant as well as any other water-wet propellants, explosives and hazardous wastes (solids and liquids) to make them compatible with the MSO process. The method includes the step of applying liquid PEG to the hazardous waste to create a slurry or feedstock that when fed directly into the MSO reactor vessel prevents the occurrence of smelt-water explosions due to the accumulation of dangerous levels of sodium chloride, and/or sodium sulfide in the molten salt bath. The PEG possesses special qualities that make it ideal for this purpose. It is a low cost, low viscosity, commercially available, non-hazardous (per OSHA standards), water soluble, low toxicity chemical that burns cleanly leaving little or no residue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.