US4160656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for deodorizing liquid manure and removing harmful gases
Assignee: Evonik Operations GmbH
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Filing: 1978-05-02
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Granted: 1979-07-10
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Expires: 1998-05-02
Abstract
Abstract Liquid manure is deodorized and harmful gases removed therefrom by introducing formaldehyde and a peroxy compound into the manure one or more times.
Inventors
- 👤 Helmut Junkermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:40
CPC Classifications
C; C05; C05F; C05F3/00; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/20; Y02P; Y02P20/00; Y02P20/141; Y02P20/145; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/916
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
43 words
A process for deodorizing liquid manure and removing harmful gases therefrom comprising applying to the liquid manure formaldehyde and a peroxy compound in the weight ratio of formaldehyde (100 weight % basis) and peroxy compound (100 weight % basis) of 1:3 to 3:1.
Claim 2
Dependent Claim
43 words
A process for deodorizing liquid manure and removing harmful gases therefrom comprising applying to the liquid manure formaldehyde and a peroxy compound in the weight ratio of formaldehyde (100 weight % basis) and peroxy compound (100 weight % basis) of 1:3 to 3:1.
Claim 3
Dependent Claim
24 words
A process according to claim 1 wherein the formaldehyde and peroxy compound are premixed with each other prior to mixing with the liquid manure.
Claim 4
Dependent Claim
22 words
A process according to claim 2 wherein the formaldehyde and peroxy compound are added as an aqueous solution to the liquid manure.
Claim 5
Dependent Claim
19 words
A process according to claim 3 wherein the peroxy compound has a solubility in water of at least 10%.
Claim 6
Dependent Claim
43 words
A process according to claim 4 wherein there is employed a 30 to 50% aqueous formaldehyde solution and a 10 to 40% aqueous peroxy compound solution to form said premixture, the weight ratio of formaldehyde to peroxy compound is from 1:3 to 3:1.
Claim 7
Dependent Claim
29 words
A process according to claim 1 wherein the peroxy compound is hydrogen peroxide, urea peroxide, potassium monoperoxysulfate, sodium persulfate, potassium persulfate, ammonium persulfate, sodium percarbonate or a percarboxylic acid.
Claim 8
Dependent Claim
13 words
A process according to claim 6 wherein the peroxy compound is ammonium persulfate.
Claim 9
Dependent Claim
38 words
A process according to claim 7 wherein the formaldehyde and ammonium persulfate are premixed in a weight ratio of 1:3 to 3:1 and the formaldehyde and ammonium persulfate are added as an aqueous solution to the liquid manure.
Claim 10
Dependent Claim
24 words
A process according to claim 8 wherein there is employed 1 to 6 liters of the deodorizing solution per cubic meter of liquid manure.
Claim 11
Dependent Claim
38 words
A process according to claim 6 wherein there is employed 1 to 6 liters of aqueous deodorizing solution containing the formaldehyde and peroxy compound in the weight ratio of 1:3 to 3:1 per cubic meter of liquid manure.
Claim 12
Dependent Claim
30 words
A process according to claim 1 wherein there is employed 1 to 6 liters of an aqueous solution of the formaldehyde and peroxy compound per cubic meter of liquid manure.
Claim 13
Dependent Claim
32 words
A process according to claim 1 wherein the peroxy compound is added in crystalline form to aqueous formaldehyde to form a premix and this premix is then added to the liquid manure.
Claim 14
Dependent Claim
17 words
A process according to claim 9 wherein the weight ratio of formaldehyde to ammonium persulfate is 1:1.
Claim 15
Dependent Claim
17 words
A process according to claim 6 wherein the weight ratio of formaldehyde to peroxy compound is 1:1.
Claim 16
Dependent Claim
17 words
A process according to claim 1 wherein the weight ratio of formaldehyde to peroxy compound is 1:1.
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) | 1982-07-09 | 1983-01-08 | 1983-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-09 | 1987-01-08 | 1987-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-09 | 1991-01-08 | 1991-07-10 | $7700.00 | Window Closed / Lapsed |