METHOD OF DECHLORINATING ORGANIC CHLORINE COMPOUND

WIPO Patent Application WO/1997/034713

A1

In order to treat organic chlorine compounds, which are generally hard to decompose, by a method, which poses no problem in terms of processes and is excellent in safety and economy, excess alkali is used to make the treating complete when a PCB containing insulating oil (9) containing organic chlorine compounds such as PCB, and alkali such as caustic soda (2), are caused to react in an aprotic polar solvent such as 1,3-dimethyl-imidazolidinone (1) to undergo dechlorination. Further, excess alkali is made to be dissolved in a lower alcohol such as ethanol (17) and recovered, and the aprotic polar solvent is recovered, whereby a treating step is improved in safety, economy and serviceability, and the oil having been made harmless is reused for fuel oils and the like to make effective use of resources.

TANIMOTO FUMIO (JP)
TSUKUMO KIYOHIKO (JP)
NAKAMURA ATSUHIKO (JP)
YANO TSUNEO (JP)
HIGASHIUCHI MITOSHI (JP)
TOMA TOSHINORI (JP)
FURUHASHI KOICHI (JP)

PCT/JP1997/000923

September 25, 1997

March 19, 1997

Click for automatic bibliography generation  

PROD DEV RES INST (JP)
MITSUI BUSSAN (JP)
NEOS KK (JP)
TANIMOTO FUMIO (JP)
TSUKUMO KIYOHIKO (JP)
NAKAMURA ATSUHIKO (JP)
YANO TSUNEO (JP)
HIGASHIUCHI MITOSHI (JP)
TOMA TOSHINORI (JP)
FURUHASHI KOICHI (JP)

A62D3/36; B01J19/00; B09B3/00; C07B35/06; C07B37/06; C07B63/02; A62D101/22; A62D101/28; (IPC1-7): B09B3/00; A62D3/00

JPS61500442A	1986-03-13
JPH0625691A	1994-02-01
JPS49126651A	1974-12-04
JPH05200129A	1993-08-10
JPH078572A	1995-01-13
US4910353A	1990-03-20

View/Download PDF      PDF Help

Previous Patent: WELD CLEANING MACHINE

Next Patent: METHOD FOR HYPERACCUMULATION OF METALS IN PLANT SHOOTS