Distillation: processes – separatory – Adding material to distilland except water or steam per se – At least two materials
Reexamination Certificate
2005-04-21
2009-06-23
Manoharan, Virginia (Department: 1797)
Distillation: processes, separatory
Adding material to distilland except water or steam per se
At least two materials
C203S069000, C585S867000
Reexamination Certificate
active
07550065
ABSTRACT:
A method for recovering a solvent from its mixture containing oligomers extracted from grafted polyolefins is disclosed. The method includes distilling the solvent from the mixture in the presence of a naphthalene compound. The method of the invention significantly increases the solvent recovering yield without causing the vessel fouling.
REFERENCES:
patent: 3855078 (1974-12-01), Friedrich et al.
patent: 4353784 (1982-10-01), Koga et al.
patent: 4774144 (1988-09-01), Jachec et al.
patent: 4842947 (1989-06-01), Jachec et al.
patent: 5091478 (1992-02-01), Saltman
patent: 5288811 (1994-02-01), Brois
patent: 5336721 (1994-08-01), Kiang
patent: 5367022 (1994-11-01), Kiang et al.
patent: 5439974 (1995-08-01), Mattson
patent: 7060787 (2006-06-01), Gupta et al.
patent: 2185505 (1990-07-01), None
patent: 4202202 (1992-07-01), None
patent: 06025580 (1994-02-01), None
Coulson et al , “Chemical Engineering” vol. Two, Unit Operations , Third Ed. , 1977, p. 412.
Carey Edward P.
Keyvani Majid
Ruszkay Jude T.
Guo Shao-Hua
Lyondell Chemical Technology, L.P.
Manoharan Virginia
LandOfFree
Method for recovering solvents does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for recovering solvents, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for recovering solvents will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4137583