US4470827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Freeze conditioning composition and method
Assignee: ChampionX LLC
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Filing: 1981-12-17
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Granted: 1984-09-11
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Expires: 2001-12-17
Abstract
Abstract The present invention provides freeze conditioning compositions for reducing moisture freezing problems found with moisture containing particulate solids, such as coal and ores and the like, comprising an alkylene polyol, such as ethylene glycol, and an effective amount of a cationic surface active material, preferably such cationics with at least one hydrophobic moiety. The preferred cationics are those with HLB of at least 11 or cationic compounds containing at least 18 total carbons, and those that are quaternary ammonium salts. The present invention also provides methods of reducing such moisture freezing problems comprising applying to at least some of the surfaces of moisture-containing particulate solids a composition comprising an alkylene polyol and an effective amount of a cationic surface active material.
Inventors
- 👤 George T. Kekish
- 👤 Carol B. Batton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:07
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/18
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
40 words
A freeze conditioning composition for particulate solids having moisture present thereon, comprising: an alkylene polyol; and a cationic surface active material comprising a quaternary ammonium salt having at least one hydrophobic moiety and an HLB rating of at least 11.
Claim 2
Dependent Claim
40 words
A freeze conditioning composition for particulate solids having moisture present thereon, comprising: an alkylene polyol; and a cationic surface active material comprising a quaternary ammonium salt having at least one hydrophobic moiety and an HLB rating of at least 11.
Claim 3
Dependent Claim
23 words
The freeze conditioning composition of claim 1 wherein said cationic surface active material comprises an alkylene oxide condensate of said quaternary ammonium salt.
Claim 4
Dependent Claim
19 words
The freeze conditioning composition of claim 1 wherein said quaternary ammonium salt includes at least one higher alkyl radical.
Claim 5
Dependent Claim
18 words
The freeze conditioning composition of claim 1 wherein said quaternary ammonium salt has at least about 18 carbons.
Claim 6
Dependent Claim
22 words
The freeze conditioning composition of claim 4 wherein said quaternary ammonium salt is an alkylene oxide fatty alkyl methyl quaternary ammonium salt.
Claim 7
Dependent Claim
23 words
The freeze conditioning composition of claim 4 wherein said quaternary ammonium salt is a C 14 -C 22 alkyl trimethyl quaternary ammonium salt.
Claim 8
Dependent Claim
23 words
The freeze conditioning composition of claim 4 wherein said quaternary ammonium salt is a C 8 -C 18 dialkyl dimethyl quaternary ammonium salt.
Claim 9
Dependent Claim
28 words
The freeze conditioning composition of claim 4 wherein said quaternary ammonium salt is a C 12 -C 18 alkyl, C 0 -C 2 alkylbenzyl, dimethyl quaternary ammonium salt.
Claim 10
Dependent Claim
42 words
The freeze conditioning composition of claim 1 further comprising from about 20 to about 70 weight percent water based on total composition, from about 1 to about 2 weight percent of said quaternary ammonium salt, and the remainder being said alkylene polyol.
Claim 11
Independent Claim
55 words
A method of treating particulate solids to reduce the cohesive strength of such particulate solids when frozen when moisture is present thereon, which comprises: applying to at least some of the surfaces of said particulate solids prior to freezing an effective amount of a composition comprising an alkylene polyol and a cationic surface active material.
Claim 12
Independent Claim
55 words
A method of treating particulate solids to reduce the cohesive strength of such particulate solids when frozen when moisture is present thereon, which comprises: applying to at least some of the surfaces of said particulate solids prior to freezing an effective amount of a composition comprising an alkylene polyol and a cationic surface active material.
Claim 13
Dependent Claim
21 words
The method of claim 10 wherein said cationic surface active material includes a cationic compound having at least one hydrophobic moiety.
Claim 14
Dependent Claim
23 words
The method of claim 11 wherein said cationic surface active material includes a cationic compound having an HLB rating of at least 11.
Claim 15
Dependent Claim
20 words
The method of claim 11 wherein said cationic surface active material is an alkylene oxide condensate of a tertiary amine.
Claim 16
Dependent Claim
21 words
The method of claim 11 wherein said cationic surface active material is a compound containing at least about 18 total carbons.
Claim 17
Dependent Claim
16 words
The method of claim 11 wherein said cationic surface active material is a quaternary ammonium salt.
Claim 18
Dependent Claim
20 words
The method of claim 15 wherein said quaternary ammonium salt is an alkylene oxide condensate of a quaternary ammonium salt.
Claim 19
Dependent Claim
13 words
The method of claim 11 wherein wherein said particulate solids are coal particles.
Claim 20
Dependent Claim
20 words
The method of claim 17 wherein said cationic surface active material is an alkylene oxide condensate of a tertiary amine.
Claim 21
Dependent Claim
21 words
The method of claim 17 wherein said cationic surface active material is an alkylene oxide fatty alkyl methyl quaternary ammonium salt.
Claim 22
Dependent Claim
22 words
The method of claim 17 wherein said cationic surface active material is a C 14 -C 22 alkyl trimethyl quaternary ammonium salt.
Claim 23
Dependent Claim
22 words
The method of claim 17 wherein said cationic surface active material is a C 8 -C 18 dialkyl dimethyl quaternary ammonium salt.
Claim 24
Dependent Claim
27 words
The method of claim 19 wherein said cationic surface active material is a C 12 -C 18 alkyl, C 0 -C 2 alkylbenzyl, dimethyl quaternary ammonium salt.
Claim 25
Dependent Claim
39 words
The method of claim 19 wherein said composition comprises from about 20 to about 70 weight percent water, from about 1 to about 2 weight percent of said cationic surface active material, and the remainder being said alkylene polyol.
Claim 26
Dependent Claim
23 words
The method of claim 23 wherein said composition is applied at a level of about 2 pints per ton of said coal particles.
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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) | 1987-09-11 | 1988-03-12 | 1988-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-11 | 1992-03-12 | 1992-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-11 | 1996-03-12 | 1996-09-11 | $7700.00 | Window Closed / Lapsed |