USRE28456E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inorganic lithium amine complexes
Assignee: —
•
Filing: 1974-01-04
•
Granted: 1975-07-01
•
Expires: 1994-01-04
Abstract
Abstract Complexed inorganic lithium salts are prepared by mixing an inorganic lithium salt such as a lithium halide with a monomeric or polymeric organic complexing agent which contains at least one nitrogen atom and at least one other atom which is nitrogen, oxygen, phosphorus or sulfur. The complexing agent may be nonchelating (e.g. triethylenediamine) or chelating in nature. The chelating complexing agents (e.g. triamines such as pentamethyl diethylenetriamine) are preferred. The resultant complex is useful for a variety of processes such as separations, catalytic reactions, substitution reactions, electrochemical reactions, etc. and as oil and fuel additives.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:57
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F1/00; C07F1/005; C07F5/00; C07F9/28; C07F9/50; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/30; C10L1/301; C10M; C10M1/00; C10M1/08; C10M3/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/044; C10M2215/06; C10M2215/062; C10M2215/064; C10M2215/066; C10M2215/14; C10M2215/22; C10M2215/221; C10M2215/222; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/049; C10M2223/06; C10M2223/061; C10M2227/00; C10M2227/09; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
44 words
A COMPLEX COMPRISING: (A) AN INORGANIC LITHIUM SALT HAVING A LATTICE LESS THAN 210 KILOCALORIES PER MOLE AT 18*C., AND (B) A MONOMERIC OR POLYMERIC POLYFUNCTIONAL CHELATING TERTIARY HYDROCARBYL AMINE CONTAINING AT LEAST TWO NITROGEN ATOMS. (ATOMS AND AT LEAST 2 TERTIARY NITROGEN ATOMS.)
Claim 2
Dependent Claim
44 words
A COMPLEX COMPRISING: (A) AN INORGANIC LITHIUM SALT HAVING A LATTICE LESS THAN 210 KILOCALORIES PER MOLE AT 18*C., AND (B) A MONOMERIC OR POLYMERIC POLYFUNCTIONAL CHELATING TERTIARY HYDROCARBYL AMINE CONTAINING AT LEAST TWO NITROGEN ATOMS. (ATOMS AND AT LEAST 2 TERTIARY NITROGEN ATOMS.)
Claim 3
Dependent Claim
34 words
A complex according to claim 1 wherein the amines are chelating polyfunctional Lewis bases, said bases being ones selected from the group consisting of (tri) tris -(2-C1-C4 dialkylaminoethyl)-amine and those compounds having the formulas:
Claim 4
Dependent Claim
25 words
A complex according to claim 2 wherein the chelating tertiary hydrocarbyl amine contains at least 5 carbon atoms and at least 2 tertiary nitrogen atoms.
Claim 5
Dependent Claim
14 words
The chelated complex of claim 3 wherein all of the R groups are methyl.
Claim 6
Dependent Claim
14 words
A complex according to claim 1 wherein the Lewis base is N,N, N'', N''-tetramethyl-1,6-hexanediamine.
Claim 7
Dependent Claim
16 words
A chelated complex according to claim 2 in which the chelating hydrocarbyl amine is N,N,N'', N''-tetramethyl-1,2-ethanediamine.
Claim 8
Dependent Claim
16 words
The chelated complex of claim 2 in which the chelating Lewis base is N,N,N'', N''''-pentamethyl diethylenetriamine.
Claim 9
Dependent Claim
18 words
The chelated complex of claim 2 in which the chelating Lewis base is N,N,N'', N'''', N'''''', N''''''-hexamethyl triethyLenetetramine.
Claim 10
Dependent Claim
17 words
The chelated complex of claim 2 in which the chelating Lewis base is (tri) tris - (2-dimethylaminoethyl)amine.
Claim 11
Dependent Claim
24 words
The chelated complex of claim 2 in which the chelating Lewis base is (both) either cis (and) or trans-N,N,N'', N''-tetramethyl-1,2-cyclohexanediamine (.) or mixtures thereof.
Claim 12
Dependent Claim
33 words
A chelated complex according to claim 2 in which the anion of the lithium salt is selected from the group consisting of chloride, bromide, iodide, borohydride, nitrate, hexafluorophosphate, tetrafluoroborate, tetraphenylborate, perchlorate and tetrafluoroberyllate.
References Cited (Backward Citations)
US2867498A
Cited
US3347893A
Cited
US3258490A
Cited
US3737458A
Cited
US3769345A
Cited
US3663585A
Cited
US3806520A
Cited
US3808207A
Cited
US3758585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-30 | 1978-12-30 | 1979-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-30 | 1982-12-30 | 1983-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-30 | 1986-12-30 | 1987-07-01 | $7700.00 | Window Closed / Lapsed |