Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1989-07-05
1990-11-06
Niebling, John F.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
210683, 423387, 423395, C25B 100, B01J 4100, C01B 21087
Patent
active
049683942
ABSTRACT:
A process for reducing excess nitric acid in an aqueous hydroxylamine nitrate solution. The process is conducted by reacting the aqueous hydroxylamine nitrate solution with a basic neutralizing agent such as nitric oxide, hydroxylamine vapor or a mixture thereof or by contacting the aqueous hydroxylamine nitrate solution with an anion exchange resin having a pKa in the range of from about 5 to about 9. The aqueous hydroxylamine nitrate solution may be produced by the electrolysis of nitric acid.
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Chem. Abs. 44/6751e; Lazzari, Giacomo, Proc. Intern. Congr. Pure and Applied Chem., "The Electrolytic Preparation of Hydroxylamine", (London) 11, 177-88 (1947; in Italian).
Chem. Abs. 68/43114v; Masek, J., Fresenius' Z. Anal. Chem., "Polarographic Reduction of the NO.sup.o Group", 224 (1), 99-107 (1967) (English).
Chem. Abs. 75/14187b; Savodnik, N. N., Shepelin, V. A., Zalkind, Ts. I., Elektrokhimiya, "Synthesis of Hydroxylamine on Platinum. I. Electrochemical Reduction of Nitric Oxide on a Platinum Electrode", 1971, 7(3), 424-7 (Russ.).
Chem. Abs. 75/14188c; Savodnik, N. N.; Shepelin, V. A.; Zalkind, Ts. I., Elektrokhimiya, "Synthesis of Hydroxylamine on Platinum. II. Interaction of Nitric Oxide and Hydrogen on Platinum", 1971, 7 (4), 583-5 (Russ.).
Chem. Abs. 80/151993d; Shepelin, V. A., Zh. Prikl. Khim. (Leningrad), "Selection of a Model for a New Method of Hydroxylamine Preparation", 1974, 47 (4), 713-16 (Russ.).
Chem. Abs. 86/48482m; J. J. L. Janssen, Electrochim. Acta, "Reduction of Nitric Oxide at a Flow-Through Mercury Plated Nickel Electrode", 1976, 21 (10), 811-15 (Eng.).
Bathia, M. L., and A. P. Watkinson, The Canadian Journal of Chemical Engineering, "Hydroxylamine Production by Electroreduction of Nitric Oxide in a Trickle Bed", vol. 57, Oct., 1979, pp. 631-637.
Chem. Abs. 75/29394r; Savodnik, N. N. et al., USSR 292,887, "Hydroxylamine", Jan. 15, 1971.
Morrison & Boyd, Organic Chemistry, 1980 (3rd Ed.) p. 640.
Dotson Ronald L.
Hernandez Debra Y.
Sasse Ronald A.
Haglind James B.
Niebling John F.
Olin Corporation
Ryser David G.
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