Chemistry of inorganic compounds – Oxygen or compound thereof – Peroxide
Reexamination Certificate
2006-01-03
2006-01-03
Langel, Wayne A. (Department: 1754)
Chemistry of inorganic compounds
Oxygen or compound thereof
Peroxide
Reexamination Certificate
active
06982072
ABSTRACT:
The anthraquinone process for producing hydrogen peroxide, including a hydrogenation step, an oxidation step and an extraction step. The oxidation waste gas leaving the oxidation reactor at an excess pressure is passed as a propellant jet to one or more gas jets and whereby a vacuum is produced for auxiliary processes, such as drying of the working solution, distillation of the aqueous hydrogen peroxide solution and drawing off of ventilator gases from solvent storage tanks.
REFERENCES:
patent: 2369912 (1945-02-01), Pfleiderer et al.
patent: 2902347 (1959-09-01), Cosby et al.
patent: 2995424 (1961-08-01), Farrell
patent: 3073680 (1963-01-01), Jenney et al.
patent: 3752635 (1973-08-01), Liebert et al.
patent: 3752885 (1973-08-01), Liebert et al.
patent: 3761580 (1973-09-01), Schreyer et al.
patent: 4485084 (1984-11-01), McIntyre
patent: 4503028 (1985-03-01), Franzén et al.
patent: 5302367 (1994-04-01), Signorini et al.
patent: 2 003 268 (1971-07-01), None
patent: 40 29 784 (1991-04-01), None
patent: 769 515 (1957-03-01), None
patent: WO 86-06710 (1986-11-01), None
Robert H. Perry et al, Chemical Engineers' Handbook, Fourth Edition, (1973), pp. 6-13, 6-14, McGraw-Hill Book Company. (no month).
International Search Report, dated May 9, 2003, issued by the European Patent Office, for International Patent No. PCT/EP03/00443 (3 pages).
Elvers, Barbara, ed., “Hydrogen Peroxide,” Ullmann's Encyclopedia of Industrial Chemistry, 1989, pp. 447-448 and 449-457, vol. A 13, VCH Verlagsgesellschaft, Weinheim, Germany (11 pages), (no month).
Degussa - AG
Langel Wayne A.
Smith , Gambrell & Russell, LLP
LandOfFree
Process for the production of hydrogen peroxide does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the production of hydrogen peroxide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of hydrogen peroxide will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3549770