Patent US3667191A successfully refreshed from Google Patents.
US3667191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of particulate matter from gaseous wastes by wet collectors
Assignee: Saleen Dev Corp
•
Filing: 1970-11-24
•
Granted: 1972-06-06
•
Expires: 1990-11-24
Abstract
Abstract In the removal of particulate matter from gaseous wastes by wet collectors, such as venturi scrubbers, the liquid employed to achieve such removal is water with an additive dissolved therein to substantially improve the collection of the particulate matter thereby. The additive dissolved in the water has, as its essential constituent, a preferably reactive mixture of an alkyl or dialkyl-phenyl polyethoxy alcohol, an N-substituted acid amide and an ethoxylated fatty alcohol. The alkyl or dialkyl-phenyl polyethoxy alcohol and the N-substituted acid amide are preferably present in the additive mixture in approximately equal molar amounts and preferably each comprise at least 35 wt. % of the mixture, and the ethoxylated fatty alcohol may comprise from 1/2 to 40 wt. % of the mixture and preferably from 1 to 30 wt. % thereof.
Inventors
- 👤 Martin Prince
- 👤 Hillard Blanck
- 👤 Gregorio Tarancon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:50
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/10
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
43 words
A scrubbing liquid according to claim 1, in which said ethoxylated fatty alcohol constitutes approximately 1/2 to 40 wt.% of said mixture, and said alkyl- or dialkylphenyl polyethoxy alcohol and N-substituted acid amide are present in said mixture in approximately equal molar amounts.
Claim 2
Dependent Claim
30 words
A scrubbing liquid according to claim 2, in which each of said alkyl- or dialkylphenyl polyethoxy alcohol and said N-substituted acid amide constitutes at least 35 wt.% of said mixture.
Claim 3
Dependent Claim
31 words
A scrubbing liquid according to claim 1, in which said alkyl-or dialkylphenyl polyethoxy alcohol, N-substituted acid amide and ethoxylated fatty alcohol are selected to react with each other in said mixture.
Claim 4
Dependent Claim
19 words
A scrubbing liquid according to claim 4, in which said additive concentration is between approximately 50 and 1000 p.p.m.
Claim 5
Dependent Claim
111 words
A scrubbing liquid according to claim 4, in which said alkylphenyl polyethoxy alcohol has the formula in which R is selected from C8-9H17-19 and C12H25 and n has the numerical of 4 to 12, and said N-substituted acid amide is selected from substances having one of the below formulas R -CON(C2H4OH)2 in which R-CO is selected from the group consisting of the acyl groups of coconut, lauric, methyl lauric and myristic acids, and mixtures thereof, and in which R-CO is selected from the group consisting of the acyl groups of coconut, oleic, palmitic, tall oil and tallow acids, and R1 is selected from the group consisting of methyl and cyclohexyl groups.
Claim 6
Dependent Claim
30 words
A scrubbing liquid according to claim 6, in which each of said alkyl- or dialkylphenyl polyethoxy alcohol and said N-substituted acid amide constitutes at least 35 wt.% of said mixture.
Claim 7
Dependent Claim
25 words
A scrubbing liquid according to claim 1, in which said water further contains an antifoaming agent in a concentration between approximately 5 and 500 p.p.m.
Claim 8
Dependent Claim
36 words
An additive for improving the particle collection efficiency of the scrubbing liquid in a wet collection apparatus, comprising a mixture of an alkyl- or dialkylphenyl polyethoxy alcohol, an N-substituted acid amide and an ethoxylated fatty alcohol.
Claim 9
Dependent Claim
42 words
An additive according to claim 9, in which said ethoxylated fatty aLcohol constitutes approximately 1/2 to 40 wt.% of said mixture, and said alkyl- or dialkylphenyl polyethoxy alcohol and N-substituted acid amide are present in said mixture in approximately equal molar amounts.
Claim 10
Dependent Claim
29 words
An additive according to claim 10, in which each of said alkyl- or dialkylphenyl polyethoxy alcohol and said N-substituted acid amide constitutes at least 35 wt.% of said mixture.
Claim 11
Dependent Claim
31 words
An additive according to claim 9, in which said alkyl- or dialkylphenyl polyethoxy alcohol, N-substituted acid amide and ethoxylated fatty alcohol are selected to react with each other in said mixture.
Claim 12
Dependent Claim
18 words
An additive according to claim 12, in which said additive concentration is between approximately 50 and 1000 p.p.m.
Claim 13
Dependent Claim
110 words
An additive according to claim 12, in which said alkylphenyl polyethoxy alcohol has the formula in which R is selected from C8-9H17-19 and C12H25 and n has the numerical of 4 to 12, and said N-substituted acid amide is selected from substances having one of the below formulas R -CON(C2H4OH)2 in which R-CO is selected from the group consisting of the acyl groups of coconut, lauric, methyl lauric and myristic acids, and mixtures thereof, and in which R-CO is selected from the group consisting of the acyl groups of coconut, oleic, palmitic, tall oil and tallow acids, and R1 is selected from the group consisting of methyl and cyclohexyl groups.
Claim 14
Dependent Claim
29 words
An additive according to claim 14, in which each of said alkyl- or dialkylphenyl polyethoxy alcohol and said N-substituted acid amide constitutes at least 35 wt.% of said mixture.
Claim 15
Dependent Claim
70 words
In the method of removing particulate matter from a gaseous flow by contacting the particle laden gaseous flow with water in a wet collection apparatus, the step of adding to said water an additive consisting essentially of a mixture of an alkyl- or dialkylphenyl polyethoxy alcohol, an N-substituted acid amide and an ethoxylated fatty alcohol, with the concentration of said additive in the water being approximately 5 to 5000 p.p.m.
Claim 16
Dependent Claim
42 words
The method according to claim 16, in which said ethoxylated fatty alcohol constitutes approximately 1/2 to 40 wt.% of said mixture, and said alkyl- or dialkylphenyl poly-ethoxy alcohol and N-substituted acid amide are present in said mixture in approximately equal molar amounts.
Claim 17
Dependent Claim
29 words
The method according to claim 17, in which each of said alkyl- or dialkyphenyl polyethoxy alcohol and said N-substituted acid amide constitutes at least 35 wt.% of said mixture.
Claim 18
Dependent Claim
31 words
The method according to claim 16, in which said alkyl- or dialkylphenyl polyethoxy alcohol, N-substituted acid amide and ethoxylated fatty alcohol are selected to react with each other in said mixture.
Claim 19
Dependent Claim
18 words
The method according to claim 19, in which said additive concentration is between approximately 50 and 1000 p.p.m.
Claim 20
Dependent Claim
109 words
The method according to claim 19, in which said alkylphenyl polyethoxy alcohol has the formula in which R is selected from C8-9H17-19 and C12H25 and n has the numerical of 4 to 12, and said N-substituted acid amide is selected from substances having one of the below formulas R-CON(C2H4OH)2 in which R-CO is selected from the group consisting of the acyl groups of coconut, lauric, methyl lauric and myristic acids, and mixtures thereof, and in which R-CO is selected from the group consisting of the acyl groups of coconut, oleic, palmitic, tall oil and tallow acids, and R1 is selected from the group consisting of methyl and cyclohexyl groups.
Claim 21
Dependent Claim
29 words
The method according to claim 21, in which each of said alkyl- or dialkylphenyl polyethoxy alcohol and said N-substituted acid amide constitutes at least 35 wt.% of said mixture.
Claim 22
Dependent Claim
27 words
The method according to claim 16, in which there is further added to the water an antifoaming agent in a concentration between approximately 5 and 500 p.p.m.
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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |