Chemistry: molecular biology and microbiology – Process of utilizing an enzyme or micro-organism to destroy... – Destruction of hazardous or toxic waste
Patent
1997-09-18
1998-12-29
Redding, David A.
Chemistry: molecular biology and microbiology
Process of utilizing an enzyme or micro-organism to destroy...
Destruction of hazardous or toxic waste
4352625, 435263, 435264, 435282, 423DIG17, C07C 0000, B09B 300
Patent
active
058540601
ABSTRACT:
Chelants represented by Formula 1b: ##STR1## are determined to be biodegradable when Distance A is from about 3.8.times.10.sup.-10 to about 4.6.times.10.sup.-10 m, Distance B is from about 5.1.times.10.sup.-10 to about 5.9.times.10.sup.-10 m, and Distance C is from about 4.3 to about 6.7.times.10.sup.-10 m). Compounds meeting these criteria are referred to as compounds of Formula 2. In addition to methods of analysis and computer systems therefor, the invention includes a method of chelating a metal ion to form a chelate and biodegrading the chelate comprising step (a) contacting the metal ion with at least one compound of Formula 2 to form a chelate and (b) contacting the resultant chelate or chelant with microbes of the type specified in ASTM 2667-89, ISO 5815 or effective enzymes thereof under conditions and for a time sufficient for biodegradation wherein either (i) the chelate formed in step (a) is formed in a process of removing deposits, scale, or rust; cleaning or washing; controlling metal initiated or catalyzed oxidation or deterioration including spoilage, discoloration, or rancidification; textile treatment; paper making; stabilization of polymers or phosphates; or petroleum drilling, production or recovery; or (ii) the chelate formed in step (a) is before step (b) used as a redox catalyst, in a process of photographic bleaching, bleach-fixing or developing; in electroless deposition or plating; in removing acid or oxide gases including H.sub.2 S, NO.sub.X, SO.sub.X, CO and CO.sub.2 ; or in providing agricultural nutrients.
REFERENCES:
patent: 4855931 (1989-08-01), Saunders
patent: 5030103 (1991-07-01), Buist et al.
Lipkowitz et al. ed., Reviews in Computational Chemistry II, VCH Publishers, 1991, pp. 313-315.
Lipkowitz et al. ed., Reviews in Computational Chemistry II, VCH Publishers, 1991, Chapter 1, pp. 1-47.
Hehre et al., Experiments in Computational Organic Chemistry, Wavefunction, Inc., 1993, pp. 47-66.
Lowry et al., Mechanism and Theory in Organic Chemistry, Harper and Row, Publishers, 3rd ed., 1987, pp. 69-83.
MOPAC PCMODEL Software, AR Software.
SYBYL Software, Tripos Associates, Inc.
BIOSYM Software, 1993, Tripos Associates, Inc.
HSC Chemistry for Windows, AR Software.
New Chem-X, Chemical Design, Inc.
Kekule for Macintosh, AR Software.
Redding David A.
The Dow Chemical Company
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