US4530963A
Expired / Lapsed
US
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Insoluble chelating compositions
Assignee: MANSFIELD CATERERS
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Filing: 1983-02-24
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Granted: 1985-07-23
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Expires: 2003-02-24
Abstract
Abstract The present invention relates to insoluble compositions, which are capable of removing metal (e.g. selectively) from solution (e.g. Fe3+ from a liquid nutrient medium so as to lower the Fe3+ content to less than 0.1 mu M); the insoluble compositions comprise: a suitable insoluble carrier and organic co-ordinating sites covalently fixed to the surface of said carrier, said co-ordinating sites being capable of chelating Fe3+, Th4+ and/or UO22+.
Inventors
- 👤 Irving W. DeVoe
- 👤 Bruce E. Holbein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:59
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/70; A23B2/725; A23B2/729; A23B70/00; A23L; A23L2/00; A23L2/70; A23L2/78; A61; A61L; A61L2/00; A61L2/16; B; B01; B01J; B01J45/00; C; C01; C01F; C01F15/00; C02; C02F; C02F1/00; C02F1/58; C02F1/62; C02F1/64; C12; C12H; C12H1/00; C12H1/02; C12H1/04; C12H1/0416; C12P; C12P9/00; C22; C22B; C22B3/00; C22B3/18; C22B3/20; C22B3/26; C22B3/32; Y; Y02; Y02P; Y02P10/00; Y02P10/20; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/911; Y10S210/912
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
120 words
An insoluble composition comprising a member selected from the class consisting of (A) an insoluble composition comprising (1) one or more organic chelating compounds, covalently fixed to the surface of (2) a suitable insoluble carrier, said organic chelating compounds possessing one or more coordinating sites, said organic chelating compounds being selected from the class consisting of microbial siderophores and (B) an insoluble composition comprising (1) one or more catechol compounds covalently fixed to the surface of (2) a suitable insoluble carrier, said catechol compounds being covalently fixed to the surface of said carrier at the benzene ring thereof, said catechol compounds being selected from the group consisting of catechol substituted on the benzene ring by one or two electrophilic substituents.
Claim 2
Dependent Claim
120 words
An insoluble composition comprising a member selected from the class consisting of (A) an insoluble composition comprising (1) one or more organic chelating compounds, covalently fixed to the surface of (2) a suitable insoluble carrier, said organic chelating compounds possessing one or more coordinating sites, said organic chelating compounds being selected from the class consisting of microbial siderophores and (B) an insoluble composition comprising (1) one or more catechol compounds covalently fixed to the surface of (2) a suitable insoluble carrier, said catechol compounds being covalently fixed to the surface of said carrier at the benzene ring thereof, said catechol compounds being selected from the group consisting of catechol substituted on the benzene ring by one or two electrophilic substituents.
Claim 3
Dependent Claim
45 words
An insoluble composition comprising (1) one or more organic chelating compounds, covalently fixed to the surface of (2) a suitable insoluble carrier, said organic chelating compounds possessing one or more coordinating sites, said organic chelating compounds being selected from the class consisting of microbial siderophores.
Claim 4
Dependent Claim
45 words
An insoluble composition comprising (1) one or more organic chelating compounds, covalently fixed to the surface of (2) a suitable insoluble carrier, said organic chelating compounds possessing one or more coordinating sites, said organic chelating compounds being selected from the class consisting of microbial siderophores.
Claim 5
Dependent Claim
20 words
A composition as defined in claim 2, wherein said microbial siderophores have a molecular weight of less than 2500 daltons.
Claim 6
Dependent Claim
23 words
A composition as defined in claim 3, wherein said microbial siderophores have a molecular weight in the range of 500 to 2500 daltons.
Claim 7
Dependent Claim
62 words
A composition as defined in claim 2, wherein said coordinating sites are provided by one or more members of the class consisting of (a) a N-substituted hydroxamate group of formula ##STR51## (b) a phenolate group of formula ##STR52## X being an atom of O or N--, and (c) a catecholate group of formula ##STR53## X' being an atom of O or N--.
Claim 8
Dependent Claim
23 words
A composition as defined in claim 4, wherein said coordinating sites are provided by one or more N-substituted hydroxamate groups of formula ##STR54##
Claim 9
Dependent Claim
22 words
A composition as defined in claim 4, wherein said coordinating sites are provided by one or more catecholate groups of formula ##STR55##
Claim 10
Dependent Claim
20 words
A composition as defined in claim 2, wherein said organic chelating compounds are selected from the class consisting of desferrioxamines.
Claim 11
Dependent Claim
18 words
A composition as defined in claim 2, wherein the organic chelating compound fixed to the carrier is enterobactin.
Claim 12
Dependent Claim
60 words
An insoluble composition comprising (1) one or more catechol compounds covalently fixed to the surface of (2) a suitable insoluble carrier, said catechol compounds being covalently fixed to the surface of said carrier at the benzene ring thereof, said catechol compounds being selected from the group consisting of catechol substituted on the benzene ring by one or two electrophilic substituents.
Claim 13
Dependent Claim
60 words
An insoluble composition comprising (1) one or more catechol compounds covalently fixed to the surface of (2) a suitable insoluble carrier, said catechol compounds being covalently fixed to the surface of said carrier at the benzene ring thereof, said catechol compounds being selected from the group consisting of catechol substituted on the benzene ring by one or two electrophilic substituents.
Claim 14
Dependent Claim
42 words
A composition as defined in claim 10, wherein said catechol compounds are selected from the group consisting of catechol substituted on the benzene ring by one or two substituents selected from the class consisting of halogen atoms, NO and NO 2 .
Claim 15
Dependent Claim
30 words
A composition as defined in claim 10, wherein said catechol compounds are selected from the group consisting of catechol substituted on the benzene ring by one or two halogen atoms.
Claim 16
Dependent Claim
17 words
A composition as defined in claim 12, wherein said halogen atoms are selected from chlorine and bromine.
Claim 17
Dependent Claim
34 words
A composition as defined in claim 10, wherein said catechol compound is selected from the group consisting of catechol monosubstituted on the benzene ring by a substituent selected from NO and NO 2 .
Claim 18
Dependent Claim
62 words
A composition as defined in claim 3, wherein said coordinating sites are provided by one or more members of the class consisting of (a) a N-substituted hydroxamate group of formula ##STR56## (b) a phenolate group of formula ##STR57## X being an atom of O or N--, and (c) a catecholate group of formula ##STR58## X' being an atom or O of N--.
Claim 19
Dependent Claim
61 words
A composition as defined in claim 4, wherein said coordinating sites are provided by one or more members of the class consisting of (a) a N-substituted hydroxamate group of formula ##STR59## (b) a phenolate group of formula ##STR60## X being an atom of O or N--, and (c) a catecholate group of formula ##STR61## X' being atom of O or N--.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-07-22 | 1989-01-21 | 1989-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-22 | 1993-01-21 | 1993-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-22 | 1997-01-21 | 1997-07-23 | $7700.00 | Window Closed / Lapsed |