CA1160201A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Oil spill absorbing peat
Assignee: Individual
•
Filing: 1981-09-11
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Granted: 1984-01-10
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Expires: 2001-09-11
Abstract
Abstract ABSTRACT OF THE DISCLOSURE A process is provided for preparing a novel highly oil absorbent peat product useful to control oil spills for oil spill clean-up. The process involves first preparing an initial mixture by mixing peat with an alkaline earth metal basic product, e.g., a magnesium/calcium hydroxide lime substitute material, e.g., at a ratio of 15:1 to 45:1. Then, that mixture is partially dried by heating either directly in an oven or a microwave oven or indirectly by a heat exchanger for a predetermined period of time, e.g., at a maximum temperature of 300°F. for a maximum time of 15 minutes. Then, a further mixture is prepared by mixing addi-tional such basic material with the partially dried peat; and further heating the further mixture during a second stage until the peat has the desired moisture content magnesium/calcium hydroxide lime substitute material with the partially dried peat, e.g., at a ratio of 10:1 to 20:1. The further mixture is then heated, either directly in an oven or a microwave oven or indirectly by a heat exchanger, e.g., at a maximum temperature of 300 F. for a maximum time of 15 minutes until the peat has the desired moisture content, e.g., 5 - 10%. This novel product can absorb some 20 times its own weight of oil which makes it very advantage-ous for cleaning up oil spills either on land or on water. Also, the oil in the present absorbent used to clean the oil spills may be easily removed.
Inventors
- 👤 William D. Moores
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-08 20:38
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/32; C02; C02F; C02F1/00; C02F1/68; C02F1/681; B; B01; B01J; B01J2220/00; B01J2220/40; B01J2220/48; B01J2220/4812; B01J2220/485
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
74 words
A process for treating peat which comprises: preparing an initial mixture by mixing peat with an alkaline earth metal basic mater-ial; partially drying said initial mixture during a first stage by heating said initial mixture for a predetermined period of time; pre-paring a further mixture by mixing additional said basic material with said partially dried peat; and further heating said further mixture during a second stage until said peat has the desired moisture content.
Claim 2
Dependent Claim
74 words
A process for treating peat which comprises: preparing an initial mixture by mixing peat with an alkaline earth metal basic mater-ial; partially drying said initial mixture during a first stage by heating said initial mixture for a predetermined period of time; pre-paring a further mixture by mixing additional said basic material with said partially dried peat; and further heating said further mixture during a second stage until said peat has the desired moisture content.
Claim 3
Dependent Claim
17 words
The process of claim 1 wherein said alkaline earth basic material is magnesium/calcium hydroxide lime substitute material.
Claim 4
Dependent Claim
25 words
The process of claim 2 wherein said magnesium/calcium hydroxide lime substitute material contains 10% Mg and 20% Ca to provide a 95% CaCO3 lime equivalent.
Claim 5
Dependent Claim
33 words
The process of claim 2 wherein said peat initially has a humification factor of 2 - 4 on the Van Post scale, and has a moisture content of 60% - 80% by weight.
Claim 6
Dependent Claim
26 words
The process of claim 2 wherein said peat initially has a humification factor of 3 on the Van Post scale and a moisture content of 70%.
Claim 7
Dependent Claim
28 words
The process of claim 2 wherein said initial mixture is heated, during said first stage, to a maximum temperature of 300°F. for a maximum period of 15 minutes.
Claim 8
Dependent Claim
26 words
The process of claim 6 wherein said initial mixture is heated, during said first stage, to a temperature of 300°F. for a period of 10 minutes.
Claim 9
Dependent Claim
27 words
The process of claim 2 wherein said initial mixture is heated, during said first stage, until said peat has a moisture content of 25% -35% by weight.
Claim 10
Dependent Claim
24 words
The process of claim 7 wherein said initial mixture is heated, during said first stage, until said peat has a moisture content of 30%.
Claim 11
Dependent Claim
39 words
The process of claim 2 wherein said further mixture is heated during said second stage for a sufficient period of time at a sufficient temperature to provide a heat of a moisture content of 5 - 10% by weight.
Claim 12
Dependent Claim
29 words
The process of claim 9 wherein the temperature of said heating is a maximum of 300 F., and the time of said heating is a maximum of 15 minutes.
Claim 13
Dependent Claim
19 words
The process of claim 2 wherein the ratio of peat/basic material in said initial mixture is 15:1 to 45:1.
Claim 14
Dependent Claim
17 words
The process of claim 2 wherein the ratio of peat/basic material in said initial mixture is 30:1.
Claim 15
Dependent Claim
19 words
The process of claim 1 wherein the ratio of peat/basic material in said further mixture is 10:1 to 20:1.
Claim 16
Dependent Claim
17 words
The process of claim 2 wherein the ratio of peat/basic material in said further mixture is 15:1.
Claim 17
Dependent Claim
87 words
A dried peat product having a moisture content of 5 -10% by weight whenever prepared by a process which comprises: preparing an initial mixture by mixing peat with an alkaline earth metal basic material; partially drying said initial mixture during a first stage by heating said initial mixture for a predetermined period of time; pre-paring a further mixture by mixing additional said basic material with said partially dried peat; and further heating said further mixture during a second stage until said peat has the desired moisture content.
Claim 18
Dependent Claim
87 words
A dried peat product having a moisture content of 5 -10% by weight whenever prepared by a process which comprises: preparing an initial mixture by mixing peat with an alkaline earth metal basic material; partially drying said initial mixture during a first stage by heating said initial mixture for a predetermined period of time; pre-paring a further mixture by mixing additional said basic material with said partially dried peat; and further heating said further mixture during a second stage until said peat has the desired moisture content.
Claim 19
Dependent Claim
153 words
A method for the control of oil spills which comprises: (a) stationing a first boat only in the immediate area of the source of the oil spill, at the downwind direction of the wind, said boat dispersing a peat product as claimed in claim 16 over the oil spill; (b) traversing the oil spill with a second boat and a third boat each said second and third boat also spraying the spill with a peat product as claimed in claim 16 while the boats are travelling in a direction parallel to the downwind direction of the wind, in a criss-cross pattern until the oil spill is substantially completely covered with said peat product; (c) spreading a containment collar around the peat product-covered oil slick by means of a fourth boat and a fifth boat; and (d) harvesting the peat/oil combination from the surface by means of a mechanized oil recovery tanker skimming vessel.
Claim 20
Dependent Claim
25 words
The method of claim 17 wherein said first boat also traverses the oil spill moving in lines parallel to the downwind direction of the wind.
Claim 21
Dependent Claim
26 words
The method of claim 17 wherein the first, second and third boats are each provided with peat-dispersing cannons on the forward deck and on the stern.
References Cited (Backward Citations)
No citation records indexed.
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