Closed loop system and process for conversion of gaseous or vaporizable organic and/or organo-metallic compounds to inert solid matrix resistant to solvent extraction
US5028452A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 1989 |
| Grant date | Jul 2, 1991 |
| Priority date | — |
| Expiry date | Sep 15, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/0894
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Closed system and process for the conversion of gaseous or vaporizable organic and/or organo-metallic compound to inert solid which is resistant to solvent extraction, and is itself essentially nontoxic or convertible through oxidation or other natural processes to a toxic material. This process involves a low temperature, low energy conversion in a close system, of an organic and/or organo-metallic material by initially fragmenting such material into its basic elements follow thereafter by randomly recombining such elements as a solid coating or deposit upon a substrate. In the preferred embodiments of this invention, the toxic and/or potentially toxic material is injected as a gaseous phase into a chamber where it is subjected to an RF energy source, thereby forming a plasma which is contained within the chamber by a magnetic field. The chamber, as well as, the other components of the conversion system are maintained under a negative pressure which allows for the transport of the plasma throughout the system to a second chamber where the elements of the plasma can recombine in a random fashion. The recombination of these elements as a solid allows for ease of handling and prevent…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.