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US3758585A
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Complexes of inorganic sodium compounds and chelating amines
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1970-07-27
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Granted: 1973-09-11
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Expires: 1990-07-27
Abstract
Abstract Chelated inorganic sodium compounds are prepared by mixing an inorganic sodium salt having a lattice energy of not more than about 180 kcal/mole with an aliphatic or cycloaliphatic chelating agent having at least one functionality which is nitrogen and, separated therefrom by two to four carbon atoms, at least one other functionality which is either nitrogen or oxygen. Such compounds have utility as catalysts, as additives, in separations, in making batteries, and in synthetic chemistry.
Inventors
- 👤 W Bunting
- 👤 A Langer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:13
CPC Classifications
C; C07; C07F; C07F1/00; C07F1/005; B; B01; B01J; B01J45/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
48 words
A complex of: a. an inorganic sodium salt having a lattice energy of not more than about 180 kcal per mole and b. an aliphatic or cycloaliphatic chelating agent selected from the group consisting of tris-2(dimethylaminoethyl)-amine and those compounds falling within the scope of the following general formula
Claim 2
Dependent Claim
23 words
The complex of claim 2 wherein the chelating agent is selected from the group consisting of tris-2(dimethylaminoethyl)-amine and compounds having the following formula:
Claim 3
Dependent Claim
26 words
The complex of claim 1 wherein the chelating agent is selected from the group consisting of N,N,N'', N'''',N''''-pentamethyldiethylenetriamine, N,N,N'',N'''',N'''''',N''''''-hexamethyltriethylenetetramine, tris-( Beta -dimethylaminoethyl)amine, heptamethyltetraethylenepentamine, octamethylpentaethylenehexamine, and poly-(N-methylethyleneimine).
Claim 4
Dependent Claim
12 words
A complex according to claim 1 wherein said chelating polyamine is tris-2(dimethylaminoethyl)-amine.
Claim 5
Dependent Claim
22 words
A complex according to claim 1 wherein said sodium salt is sodium dimethyl amide and said tertiary chelating hydrocarbyl polyamine is N,N,N'',N'''',N''''-pentamethyl-diethylene-triamine.
References Cited (Backward Citations)
US3258490A
Cited
US3541149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |