Liquid purification or separation – Processes – Chemical treatment
Patent
1998-03-06
1999-12-28
Chiesa, Richard L.
Liquid purification or separation
Processes
Chemical treatment
210632, 210903, 210908, C02F 172
Patent
active
060077271
ABSTRACT:
It has been found that in sol-gel processes utilizing TMAH, it is possible to treat a trimethylamine (TRIMA)-containing solution with hydrogen peroxide to form trimethylamine oxide--(CH.sub.3).sub.3 N.sup.+ --O.sup.- (TRIMAO), a water soluble compound which is less volatile and less odorous than TRIMA, and which is capable of being sent to a standard wastewater treatment plant. The hydrogen peroxide is generally added to the TRIMA-containing solution in a H.sub.2 O.sub.2 :TRIMA ratio of at least 3:1, advantageously at least 10:1. Because of the resultant TRIMAO solution's ability to be sent to a standard wastewater treatment facility, improved productivity and lowered expense of the overall fiber fabrication process are obtained. The invention is also suitable for treatment of triethylamine.
REFERENCES:
patent: 4724084 (1988-02-01), Pahmeier et al.
patent: 4994614 (1991-02-01), Bauer et al.
patent: 5240488 (1993-08-01), Chandross et al.
patent: 5356539 (1994-10-01), Peter et al.
patent: 5464766 (1995-11-01), Bruno
patent: 5608112 (1997-03-01), Schwartz
patent: 5866718 (1999-02-01), Prabhu
"Gas Absorption", edited by Perry, R. H. et al., "Chemical Engineers Handbook", 5th edition, McGraw-Hill, pp. 14-2, 14-16, Dec. 1973.
"Organic Nitrogen Compounds. I. Peroxide Intermediates of Tertiary Alkylamine", by Oswald, A. et al., Journal of Organic Chemistry, vol. 28, No. 3, pp. 651-657 (Mar. 1963).
"Hydroperoxide Oxidations Catalyzed by Metals. II. The Oxidation of Tertiary Amines to Amine Oxides", by Sheng, M. N. et al., The Journal of Organic Chemistry, vol. 33, No. 3, pp. 588-657 (Feb. 1968).
Bohrer Michael Philip
Chandross Edwin Arthur
Mixon David Anton
Psota-Kelty Linda A.
Trevor Dennis J.
Chiesa Richard L.
Lawrence, Jr. Frank M.
Lucent Technologies - Inc.
Rittman Scott J.
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