US4207207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon soluble magnesium compositions of high magnesium content
Assignee: Texas Alkyls Inc
•
Filing: 1979-01-17
•
Granted: 1980-06-10
•
Expires: 1999-01-17
Abstract
Abstract A composition of matter is disclosed comprising dimethylmagnesium, di-n-propylmagnesium and optionally diethylmagnesium. The composition is soluble in aliphatic, cycloaliphatic, and aromatic hydrocarbon solvents without the aid of solubilizing agents. The composition is prepared in the substantial absence of oxygen and moisture by the simultaneous or consecutive reactions of methyl, ethyl, and n-propyl halides with metallic magnesium in the presence of the hydrocarbon solvent, followed by separation of the insoluble magnesium halide and any unreacted magnesium metal from the resulting solution.
Inventors
- 👤 Ramiro Sanchez
- 👤 Loyd W. Fannin
- 👤 Dennis B. Malpass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:02
CPC Classifications
C; C07; C07F; C07F3/00; C07F3/02
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
22 words
A hydrocarbon-soluble composition of matter comprising dimethylmagnesium and di-n-propylmagnesium at a methyl:n-propyl alkyl group ratio of from about 0.2:1 to about 5:1.
Claim 2
Dependent Claim
22 words
A hydrocarbon-soluble composition of matter comprising dimethylmagnesium and di-n-propylmagnesium at a methyl:n-propyl alkyl group ratio of from about 0.2:1 to about 5:1.
Claim 3
Dependent Claim
20 words
A composition according to claim 1 in which the methyl:n-propyl alkyl groups ratio is from about 0.5:1 to about 2:1.
Claim 4
Dependent Claim
45 words
A hydrocarbon-soluble composition of matter comprising dimethylmagnesium, diethylmagnesium, and di-n-propylmagnesium, in which the relative amounts of the dialkylmagnesium compounds are (a) approximately 10 to 80 mole percent dimethylmagnesium, (b) approximately 10 to 80 mole percent diethylmagnesium, and (c) approximately 10 to 80 mole percent di-n-propylmagnesium.
Claim 5
Dependent Claim
45 words
A hydrocarbon-soluble composition of matter comprising dimethylmagnesium, diethylmagnesium, and di-n-propylmagnesium, in which the relative amounts of the dialkylmagnesium compounds are (a) approximately 10 to 80 mole percent dimethylmagnesium, (b) approximately 10 to 80 mole percent diethylmagnesium, and (c) approximately 10 to 80 mole percent di-n-propylmagnesium.
Claim 6
Dependent Claim
33 words
A composition according to claim 3 comprising (a) approximately 10 to 60 mole percent dimethylmagnesium, (b) approximately 20 to 70 mole percent diethylmagnesium, and (c) approximately 20 to 70 mole percent of di-n-propylmagnesium.
Claim 7
Dependent Claim
32 words
A composition according to claim 3 comprising (a) approximately 10 to 30 mole percent dimethylmagnesium, (b) approximately 35 to 55 mole percent diethylmagnesium, and (c) approximately 35 to 55 mole percent di-n-propylmagnesium.
Claim 8
Dependent Claim
58 words
A composition of matter comprising the components (a) dimethylmagnesium, (b) di-n-propylmagnesium, and (c) a solvent selected from the group consisting of aliphatic, cycloaliphatic and aromatic hydrocarbons containing 5 to 20 carbon atoms, inclusive, components (a) and (b) being present in quantities relative to each other such that the methyl:n-propyl mole ratio is between about 0.2:1 and about 5:1.
Claim 9
Dependent Claim
58 words
A composition of matter comprising the components (a) dimethylmagnesium, (b) di-n-propylmagnesium, and (c) a solvent selected from the group consisting of aliphatic, cycloaliphatic and aromatic hydrocarbons containing 5 to 20 carbon atoms, inclusive, components (a) and (b) being present in quantities relative to each other such that the methyl:n-propyl mole ratio is between about 0.2:1 and about 5:1.
Claim 10
Dependent Claim
20 words
A composition according to claim 6 in which the methyl:n-propyl alkyl group ratio is from about 0.5:1 to about 2:1.
Claim 11
Dependent Claim
44 words
A composition according to claim 6 further comprising diethylmagnesium, in which the relative amounts of the dialkylmagnesium compounds are (a) approximately 10 to 80 mole percent dimethylmagnesium, (b) approximately 10 to 80 mole percent diethylmagnesium, and (c) approximately 10 to 80 mole percent di-n-propylmagnesium.
Claim 12
Dependent Claim
41 words
A composition according to claim 8 in which the relative amounts of the dialkylmagnesium compounds are (a) approximately 10 to 60 mole percent dimethylmagnesium, (b) approximately 20 to 70 mole percent diethylmagnesium, and (c) approximately 20 to 70 mole percent di-n-propylmagnesium.
Claim 13
Dependent Claim
41 words
A composition according to claim 8 in which the relative amounts of the dialkylmagnesium compounds are (a) approximately 10 to 30 mole percent dimethylmagnesium, (b) approximately 35 to 55 mole percent diethylmagnesium, and (c) approximately 35 to 55 mole percent di-n-propylmagnesium.
Claim 14
Dependent Claim
36 words
A composition according to claim 6, 7, 8, 9, or 10 in which the solvent is a member selected from the group consisting of aliphatic, cycloaliphatic, and aromatic hydrocarbons containing 6 to 15 carbon atoms, inclusive.
Claim 15
Dependent Claim
41 words
A composition according to claim 6, 7, 8, 9, or 10 in which the solvent is a member selected from the group consisting of aliphatic, cycloaliphatic, and aromatic hydrocarbons which have boiling points between about 69° C. and about 110° C.
Claim 16
Dependent Claim
35 words
A composition according to claim 6, 7, 8, 9, or 10 in which the concentration of dialkylmagnesium in the solvent is from about 0.2 weight percent to about 12 weight percent in terms of magnesium.
Claim 17
Dependent Claim
35 words
A composition according to claim 6, 7, 8, 9, or 10 in which the concentration of dialkylmagnesium in the solvent is from about 1 weight percent to about 5 weight percent in terms of magnesium.
Claim 18
Dependent Claim
75 words
A process for the manufacture of a hydrocarbon solution of a dialkylmagnesium composition which comprises (a) reacting metallic magnesium with a methyl halide and a n-propyl halide, either simultaneously or in any order of succession, in a common vessel in the presence of a hydrocarbon solvent, to produce a homogeneous liquid and solids, and (b) separating said homogeneous liquid from said solids, both steps being conducted in the substantial absence of both moisture and oxygen.
Claim 19
Dependent Claim
75 words
A process for the manufacture of a hydrocarbon solution of a dialkylmagnesium composition which comprises (a) reacting metallic magnesium with a methyl halide and a n-propyl halide, either simultaneously or in any order of succession, in a common vessel in the presence of a hydrocarbon solvent, to produce a homogeneous liquid and solids, and (b) separating said homogeneous liquid from said solids, both steps being conducted in the substantial absence of both moisture and oxygen.
Claim 20
Dependent Claim
78 words
A process for the manufacture of a hydrocarbon solution of a dialkylmagnesium composition which comprises (a) reacting metallic magnesium with a methyl halide, an ethyl halide, and a n-propyl halide, either simultaneously or in any order of succession, in a common vessel in the presence of a hydrocarbon solvent, to produce a homogeneous liquid and solids, and (b) separating said homogeneous liquid from said solids, both steps being conducted in the substantial absence of both moisture and oxygen.
Claim 21
Dependent Claim
78 words
A process for the manufacture of a hydrocarbon solution of a dialkylmagnesium composition which comprises (a) reacting metallic magnesium with a methyl halide, an ethyl halide, and a n-propyl halide, either simultaneously or in any order of succession, in a common vessel in the presence of a hydrocarbon solvent, to produce a homogeneous liquid and solids, and (b) separating said homogeneous liquid from said solids, both steps being conducted in the substantial absence of both moisture and oxygen.
Claim 22
Dependent Claim
34 words
A process according to claim 15 or 16 in which the hydrocarbon solvent is a member selected from the group consisting of aliphatic, cycloaliphatic, and aromatic hydrocarbons containing 5 to 20 carbon atoms, inclusive.
Claim 23
Dependent Claim
34 words
A process according to claim 15 or 16 in which the hydrocarbon solvent is a member selected from the group consisting of aliphatic, cycloaliphatic and aromatic hydrocarbons containing 6 to 15 carbon atoms, inclusive.
Claim 24
Dependent Claim
39 words
A process according to claim 15 or 16 in which the hydrocarbon solvent is a member selected from the group consisting of aliphatic, cycloaliphatic, and aromatic hydrocarbons which having boiling points between about 69° C. and about 110° C.
Claim 25
Dependent Claim
18 words
A process according to claim 15 or 16 in which the magnesium metal is in the powdered state.
Claim 26
Dependent Claim
27 words
A process according to claim 15 or 16 in which the magnesium metal is comprised of particles of diameter equal to or less than about 150 microns.
Claim 27
Dependent Claim
25 words
A process according to claim 15 or 16 in which the mole ratio of magnesium to total halides is between about 1.0 and about 2.0.
Claim 28
Dependent Claim
25 words
A process according to claim 15 or 16 in which the mole ratio of magnesium to total halide is between about 1.1 and about 1.3.
Claim 29
Dependent Claim
14 words
A process according to claim 15 or 16 in which all halides are chlorides.
Claim 30
Dependent Claim
40 words
A process according to claim 16 in which the reactions of step (a) are performed in succession in the order ethyl--propyl--methyl, and the magnesium is activated by a magnesium activating agent either prior to or during the ethyl halide reaction.
Claim 31
Dependent Claim
24 words
A process according to claim 25 in which the magnesium is thermally activated at a temperature between about 125° C. and about 350° C.
Claim 32
Dependent Claim
17 words
A process according to claim 25 in which the magnesium activating agent is a soluble dialkylmagnesium compound.
References Cited (Backward Citations)
US3450683A
Cited
GB1251177A
Cited
US3737393A
Cited
US3646231A
Cited
US3704287A
Cited
US4069267A
Cited
US4127507A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-06-10 | 1983-12-10 | 1984-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-10 | 1987-12-10 | 1988-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-10 | 1991-12-10 | 1992-06-10 | $7700.00 | Window Closed / Lapsed |