Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IT Group Inc
Original Assignee
International Technology Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/676,896external-prioritypatent/US5414203A/en
Application filed by International Technology CorpfiledCriticalInternational Technology Corp
Priority to CA002068706ApriorityCriticalpatent/CA2068706C/en
Publication of CA2068706A1publicationCriticalpatent/CA2068706A1/en
Application grantedgrantedCritical
Publication of CA2068706CpublicationCriticalpatent/CA2068706C/en
Separation, Recovery Or Treatment Of Waste Materials Containing Plastics
(AREA)
Treating Waste Gases
(AREA)
Abstract
The specification discloses a method for the treatment of particulate material contaminated with polyhalogenated aromatic compounds (PHAs). The method includes vaporizing the PHAs from the material and dissolving the vaporized PHAs in a glycol-based solvent solution. The PHAs are then removed from the solution so that the glycol can be reused.
CA002068706A1991-03-281992-05-14Treatment of particulate material contaminated with polyhalogenated aromatics
Expired - Fee RelatedCA2068706C
(en)
Method of evaporating and condensing a volatile component particularly for recovery of solvent in printing processes and apparatus for carrying out the method