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Title: Method of recovering hazardous waste from phenolic resin filters

Patent Application ·
OSTI ID:10116552

A method has been found for treating phenolic resin filter, whereby the filter is solubilized within the filter cartridge housing so the filter material can be removed from the cartridge housing in a remote manner. The invention consists of contacting the filter within the housing with an aqueous solution of about 8 to 12M nitric acid, at a temperature from about 110 to 190{degree}F, maintaining the contact for a period of time sufficient to solubilize the phenolic material within the housing, and removing the solubilized phenolic material from the housing, thereby removing the filter cartridge from the housing. Any hazardous or other waste material can then be separated from the filter material by chemical or other means.

Research Organization:
EG and G Idaho, Inc., Idaho Falls, ID (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC07-76ID01570
Assignee:
Dept. of Energy
Patent Number(s):
PATENTS-US-A7516936
Application Number:
ON: DE92004612; PAN: 7-516,936
OSTI ID:
10116552
Resource Relation:
Other Information: PBD: 1990
Country of Publication:
United States
Language:
English