US4473477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of organic waste disposal
Assignee: Southern Clay Products Inc
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Filing: 1982-09-20
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Granted: 1984-09-25
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Expires: 2002-09-20
Abstract
Abstract A method for controlling and containing organic material by sorbing it into an organoclay. Solid or liquid waste material or waste material in aqueous solution containing organic material are combined with a sufficient amount of organoclay to sorb and contain the organic material in the organoclay.
Inventors
- 👤 Gary W. Beall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:38
CPC Classifications
B; B09; B09B; B09B1/00; C; C02; C02F; C02F1/00; C02F1/28; C02F1/288; E; E02; E02D; E02D31/00; E02D31/002; E02D31/004
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
87 words
A method for preventing escape of organic contaminant material, comprising the steps of: collecting the organic waste material at a waste disposal site; substantially containing and preventing release of hazardous organic waste material from the waste disposal site; and sorbing substantially all of the hazardous organic waste material passing from the waste disposal site in an organoclay to substantially prevent escape of the hazardous organic waste material to the environment, said organoclay being the previously prepared reaction product of a quaternary ammonium salt and a smectite-type clay.
Claim 2
Independent Claim
87 words
A method for preventing escape of organic contaminant material, comprising the steps of: collecting the organic waste material at a waste disposal site; substantially containing and preventing release of hazardous organic waste material from the waste disposal site; and sorbing substantially all of the hazardous organic waste material passing from the waste disposal site in an organoclay to substantially prevent escape of the hazardous organic waste material to the environment, said organoclay being the previously prepared reaction product of a quaternary ammonium salt and a smectite-type clay.
Claim 3
Dependent Claim
42 words
The method as set forth in claim 1 including the step of: forming a liner containing an organoclay around the waste disposal site to substantially prevent escape of any hazardous organic waste material from the site and sorb the escaping waste material.
Claim 4
Dependent Claim
26 words
The method as set forth in claim 1 including the step of: substantially containing the waste at the waste disposal site using an inmpermeable liner system.
Claim 5
Dependent Claim
33 words
The system as set forth in claim 1 including the steps of: flowing leachate from the waste disposal site to a filtering means containing organoclay to remove hazardous organic waste from the leachate.
Claim 6
Dependent Claim
28 words
The method as set forth in claim 1, wherein the organoclay is formed of a solid compound having an inorganic and organic phase which will sorb organic molecules.
Claim 7
Dependent Claim
34 words
The method as set forth in claim 1, wherein the clay substrate for the organoclay is a clay type forming a suitable organic clay complex using bentonite, hectorite, or attapulgite as a clay substrate.
Claim 8
Dependent Claim
22 words
The method as set forth in claim 1, wherein the organoclay includes a quaternary ammonium salt which is substituted onto the clay.
Claim 9
Dependent Claim
35 words
The method set forth in claim 7, wherein the quaternary ammonium salt has organic groups attached selected from the group consisting of aliphatic hydrocarbon chains varying from 1 to 20 carbons and aromatic organic molecules.
Claim 10
Dependent Claim
24 words
The method of claim 8, wherein the amount of organoclay is a maximum of about 10% by weight of the amount of organic composition.
Claim 11
Dependent Claim
16 words
The method as set forth in claim 9, wherein the organic material is an aqueous solution.
Claim 12
Dependent Claim
33 words
The method as set forth in claim 9, wherein the solidifying material is added to the organic material and organoclay to form a solid material containing the organic material sorbed into the organoclay.
Claim 13
Dependent Claim
24 words
The method of claim 7, wherein the amount of organoclay is a maximum of about 10% by weight of the amount of organic composition.
Claim 14
Dependent Claim
15 words
The method of claim 1, wherein the organoclay is a higher dialkyl dimethyl ammonium organoclay.
Claim 15
Dependent Claim
13 words
The method of claim 1, wherein the organoclay is a benzyl ammonium organoclay.
Claim 16
Dependent Claim
13 words
The method of claim 1, wherein the organoclay is an ethylhydroxy ammonium organoclay.
Claim 17
Dependent Claim
23 words
The method of claim 1, wherein the amount of organoclay is at least about 1% by weight of the amount of organic contaminant.
Claim 18
Dependent Claim
23 words
The method of claim 1, wherein the amount of organoclay is at least about 5% by weight of the amount of organic contaminant.
Claim 19
Independent Claim
73 words
A method of controlling and limiting migrations of organic material into the environment, comprising the steps of: bringing a predetermined amount of organoclay into contact with an organic material, said organoclay being the previously prepared reaction product of a quaternary ammonium salt and a smectite-type clay sorbing the organic material into the organoclay; and containing the organoclay and sorbed organic material to control and limit migration of the organic material into the environment.
Claim 20
Independent Claim
73 words
A method of controlling and limiting migrations of organic material into the environment, comprising the steps of: bringing a predetermined amount of organoclay into contact with an organic material, said organoclay being the previously prepared reaction product of a quaternary ammonium salt and a smectite-type clay sorbing the organic material into the organoclay; and containing the organoclay and sorbed organic material to control and limit migration of the organic material into the environment.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-25 | 1988-03-26 | 1988-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-25 | 1992-03-26 | 1992-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-25 | 1996-03-26 | 1996-09-25 | $7700.00 | Window Closed / Lapsed |