Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Reexamination Certificate
2007-04-06
2010-06-08
Oh, Taylor Victor (Department: 1625)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
C562S545000
Reexamination Certificate
active
07732635
ABSTRACT:
The utilization amount of steam generated by heat recovery tends to decrease in a production process of an organic acid when the concentration of an organic acid solution obtained in a step of collecting an organic acid with a solvent such as water becomes high. The purpose of the invention is to find an advantageous method for effectively utilizing reaction heat and contribute to global environmental preservation and saving product costs. The present invention provides a production method of an organic acid comprising carrying out a gas-phase catalytic oxidation reaction of raw material gas at the temperature from 250° C. to 450° C., recovering at least a part of reaction heat and/or heat generated in combustion of a waste as high pressure steam at a pressure of 1 MPaG or higher, supplying at least a part of the high pressure steam to a back pressure steam turbine connected with a blower to drive the blower, and supplying at least a part of discharged gas from the back pressure steam turbine, low pressure steam A at a pressure lower than 1 MPaG, to an absorption type refrigerator to utilize the low pressure steam A as a heat source of the absorption type refrigerator.
REFERENCES:
patent: 4530826 (1985-07-01), Ohashi et al.
patent: 5315037 (1994-05-01), Sakamoto et al.
patent: 5817865 (1998-10-01), Machhammer et al.
patent: 6831195 (2004-12-01), Nishimura et al.
patent: 7038081 (2006-05-01), Matsumoto et al.
patent: 2003/0045749 (2003-03-01), Nishimura et al.
patent: 2003/0181621 (2003-09-01), Matsumoto et al.
patent: 1 346 974 (2003-09-01), None
patent: 57-93946 (1982-06-01), None
patent: 58-214605 (1983-12-01), None
patent: 5-17377 (1993-01-01), None
patent: 5-246941 (1993-09-01), None
patent: 7-65818 (1995-03-01), None
patent: 9-227445 (1997-09-01), None
patent: 11-83232 (1999-03-01), None
patent: 2002-266656 (2002-09-01), None
patent: 2003-73327 (2003-03-01), None
patent: 2003-268011 (2003-09-01), None
Office Action issued Apr. 30, 2008 (with English translation) in Japanese Patent Application No. 2006-106808 corresponding to the present U.S. application.
Kagaku Daijiten 2 (Chemical comprehensive dictionary 2) p. 813, 1989.
Kagaku Daijiten 7 (Chemical comprehensive dictionary 7) p. 2, 1989.
Office Action issued Sep. 16, 2008 (with English translation) in Japanese Patent Application No. 2006-106808 corresponding to the present U.S. application.
Abstract of JP 5-17377 published Jan. 26, 1993.
Nippon Shokubai Co. , Ltd.
Oh Taylor Victor
Wenderoth , Lind & Ponack, L.L.P.
LandOfFree
Method for producing organic acid 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 producing organic acid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing organic acid will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4238490