US4229309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnesium-containing dispersions
Assignee: Baker Petrolite LLC
•
Filing: 1977-07-18
•
Granted: 1980-10-21
•
Expires: 1997-07-18
Abstract
Abstract This invention relates to stable, fluid magnesium-containing dispersions and the preparations thereof by the high temperature dehydration of Mg(OH) 2 to MgO in a dispersant-containing fluid.
Inventors
- 👤 William J. Cheng
- 👤 David B. Guthrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:45
CPC Classifications
C; C01; C01F; C01F5/00; C01F5/02; C01F5/06; C01F5/08; C10; C10L; C10L1/00; C10L1/10; C10L1/12; C10L1/1233; C10M; C10M125/00; C10M125/10; C10M159/00; C10M159/12; C10M159/20; C10M2201/00; C10M2201/06; C10M2201/062; C10M2201/063; C10M2207/00; C10M2207/10; C10M2207/16; C10M2207/28; C10M2207/287; C10M2207/289; C10M2219/00; C10M2219/04; C10M2219/044; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/08; C10N2050/00; C10N2050/10; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31815
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
75 words
A process of preparing a stable, fluid magnesium oxidecontaining dispersion which consists essentially of heating a composition comprising a non-volatile process fluid containing Mg(OH) 2 and a dispersant to the dehydration temperature of Mg(OH) 2 until all the water has been removed, said non-volatile process fluid being capable of being heated to the dehydration temperature of Mg(OH) 2 , and said dispersant being capable of retaining the magnesium compound formed by dehydration in stable suspension.
Claim 2
Dependent Claim
75 words
A process of preparing a stable, fluid magnesium oxidecontaining dispersion which consists essentially of heating a composition comprising a non-volatile process fluid containing Mg(OH) 2 and a dispersant to the dehydration temperature of Mg(OH) 2 until all the water has been removed, said non-volatile process fluid being capable of being heated to the dehydration temperature of Mg(OH) 2 , and said dispersant being capable of retaining the magnesium compound formed by dehydration in stable suspension.
Claim 3
Dependent Claim
15 words
The process of claim 1 where the dehydration temperature is greater than about 250° C.
Claim 4
Dependent Claim
30 words
The process of claim 2 where the MgO dispersion is converted to a dispersion of another magnesium derivative selected from the group consisting of MgCO 3 and Mg(OH) 2 .
Claim 5
Dependent Claim
22 words
The process of claim 3 where MgO is reacted with CO 2 to form a stable, fluid dispersion of MgCO 3 .
Claim 6
Dependent Claim
24 words
The process of claim 3 where MgO is hydrated with H 2 O to form a stable, viscous fluid suspension of Mg(OH) 2 .
Claim 7
Dependent Claim
5 words
The product of claim 1.
Claim 8
Dependent Claim
5 words
The product of claim 2.
Claim 9
Dependent Claim
5 words
The product of claim 3.
Claim 10
Dependent Claim
5 words
The product of claim 4.
Claim 11
Dependent Claim
5 words
The product of claim 5.
Claim 12
Dependent Claim
24 words
A vanadium-containing fuel containing a minor but effective amount of the product of claim 6 to inhibit the corrosive effect of the vanadium-containing fuel.
Claim 13
Dependent Claim
24 words
A vanadium-containing fuel containing a minor but effective amount of the product of claim 7 to inhibit the corrosive effect of the vanadium-containing fuel.
Claim 14
Dependent Claim
24 words
A vanadium-containing fuel containing a minor but effective amount of the product of claim 8 to inhibit the corrosive effect of the vanadium-containing fuel.
Claim 15
Dependent Claim
24 words
A vanadium-containing fuel containing a minor but effective amount of the product of claim 9 to inhibit the corrosive effect of the vanadium-containing fuel.
Claim 16
Dependent Claim
24 words
A vanadium-containing fuel containing a minor but effective amount of the product of claim 10 to inhibit the corrosive effect of the vanadium-containing fuel.
Claim 17
Dependent Claim
31 words
A lub oil or grease containing a minor amount of the product of claim 6 sufficient to act as an anti-corrosion and acidic neutralization additive for said lube oil or grease.
Claim 18
Dependent Claim
31 words
A lube oil or grease containing a minor amount of the product of claim 7 sufficient to act as an anti-corrosion and acidic neutralization additive for said lube oil or grease.
Claim 19
Dependent Claim
31 words
A lube oil or grease containing a minor amount of the product of claim 8 sufficient to act as an anti-corrosion and acidic neutralization additive for said lube oil or grease.
Claim 20
Dependent Claim
31 words
A lube oil or grease containing a minor amount of the product of claim 9 sufficient to act as an anti-corrosion and acidic neutralization additive for said lube oil or grease.
Claim 21
Dependent Claim
31 words
A lube oil or grease containing a minor amount of the product of claim 10 sufficient to act as an anti-corrosion and acidic neutralization additive for said lube oil or grease.
References Cited (Backward Citations)
US2485861A
Cited
US2641532A
Cited
US2641531A
Cited
US3055829A
Cited
US3150089A
Cited
US3689218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-21 | 1984-04-21 | 1984-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-21 | 1988-04-21 | 1988-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-21 | 1992-04-21 | 1992-10-21 | $7700.00 | Window Closed / Lapsed |