Method for synthesizing ferrate and ferrate produced thereby

Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

423140, 423141, 423142, C01D 102, C01G 4902

Patent

active

057469946

ABSTRACT:
A method of producing ferrate is disclosed, in which Fe.sup.3+ is oxidized with monoperoxosulfate (HSO.sub.5.sup.-) to form K.sub.2 FeO.sub.4 /K.sub.2 SO.sub.4. The isolation of the potassium ferrate (K.sub.2 FeO.sub.4) product in a sulfate matrix (K.sub.2 SO.sub.4) stabilizes the ferrate against decomposition and inhibits clumping of the solid product by inhibiting moisture adsorption. The method is a safe, simple process for the production of ferrate that is reliable, fast, and inexpensive, and that avoids the use of chlorine or chlorinated products, thus avoiding their harmful side effects. The improved ferrate product of this method is particularly useful for water and wastewater treatment, especially in the treatment of sulfides and hydrazines, and in other applications.

REFERENCES:
patent: 2758090 (1956-08-01), Mills et al.
patent: 2835553 (1958-05-01), Harrison et al.
patent: 4304760 (1981-12-01), Mein et al.
patent: 4385045 (1983-05-01), Thompson
patent: 4405573 (1983-09-01), Deininger et al.
patent: 4500499 (1985-02-01), Kaczur et al.
patent: 4551326 (1985-11-01), Thompson
patent: 4983306 (1991-01-01), Deininger et al.
patent: 5202108 (1993-04-01), Deininger
patent: 5284642 (1994-02-01), Evrard et al.
Audette, T.J., J. Quail and P. Smith, "Ferrate (VI) Ion, A Novel Oxidizing Agent," J. Tetr. Lett., vol. 2,. pp. 279-282 (1971).
Bartzatt, R.L., and J. Carr, "The Kinetics of Oxidation of Low Molecular Weight Aldehydes by Potassium Ferrate," Trans. Met. Chem., vol. 11 (11), pp. 414-416 (1986).
Bartzatt, R.L. and D. Nagel, "Removal of Nitrosamines from Waste Water by Potassium Ferrate Oxidation," Arch. Env. Health, vol. 46(5), pp. 313-315 (1991).
Darling, D., V. Kumari and J. BeMiller, "Oxidation of Carbohydrates with the Ferrate (VI) Ion," J. Tetr. Lett., vol. 40., pp. 4143-4146 (1972).
Fremy, E.F., "Recherches son Les Acides Metalliques,"Ann. Chim. Phys., pp. 361-382 (1844) (No Translation).
Gump, J., W. Wagner and E. Hart, "Factors Affecting the Stability of Aqueous Potassium Ferate (VI) Solutions," Anal. Chem., vol. 24., pp. 1497-1498 (1952).
Losana, L., "Acido Ferrico e Ferrati (I)," Gazz. Chim. Ital., vol. 55., pp. 468-497 (1925) (No Translation).
Murman, R.K., and H.J. Goff, "Studies on the Mechanism of Isotopic Oxygen Exchange and Reductio of ferrate (VI) Ion, FeO.sub.4.sup.2-).sup.1, "J. Am. Chem. Soc., vol. 93., 6058-6065 (1971).
Thompson, G., W. Ockerman, L.T. and J.M. Schreyer, "Preparation and Purification of Potassium Ferrate,"J. Am. Chem. Soc., vol. 73., pp. 1379-1381 (1951).
Waite, Thomas, Marsha Gilbert and Curtis Hale, "Analytical Notes--An Investigation of the Applicability of Ferrate Ion of Disinfection," Journal American Water Works Association, vol. 68 No. 9 pp. 495-497 (Sep. 1976).
Walte, T. and Joan Fagan "Biofouling Control with Ferrate," Environ. Sci. Technol., vol. 17., 123-125 (1983).
Williams, D., and J. Riley, "Preparation and Alcohol Oxidation Studies of the Ferrate (VI) Ion, FeO.sub.4.sup.2-,"Inorg. Chim. Acta, vol. 8., pp. 177-183 (1974).
Wood, R.H., "The Heat, Free Energy and Entropy of the Ferrate (VI) Ion, " J. Am. Chem. Soc., vol. 80., pp. 2038-2041 (1957).
Deininger, J. Paul, Linda K. Chatfield and Duane R. Churchwell, "Developments in Transsuranic Element Polishing from Radioactive Wastewaters Using Ferrate (FEO.sub.4 -2) Chemical Technology", Symposium on Waste Management (1990 Tucson, AZ) vol. 1, pp. 789-795 (1990).
Kazama, Futaba, "Respiratory Inhibition of Sphaerotilus by Potassium Ferrate", Journal of Fermenation and Bioengineering, vol. 67, No. 6, pp. 369-373 (1989).
Kazama, Futaba and Kenju Kato, "Removal of Heavy Metal Ions and Fumic Acid by Coagulation with Potassium Ferrate (VI)," T.ang.oky.ang.o: Nihon K.ang.ogy.ang.o Y.ang.osui Ky.ang.okai, vol. 357, pp. 8-13 (1988), (no translation).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method for synthesizing ferrate and ferrate produced thereby 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 synthesizing ferrate and ferrate produced thereby, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for synthesizing ferrate and ferrate produced thereby will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-50863

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.