US3865568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for fabricating a natural fertilizer
Assignee: Individual
•
Filing: 1973-09-19
•
Granted: 1975-02-11
•
Expires: 1993-09-19
Abstract
Abstract A method of and apparatus for the production of a natural fertilizer, especially a liquid fertilizer, by treating aqueous mixtures of animal secretions with mineral acids and, if desired, neutralizing the excess acid, wherein: 1. THE ANIMAL SECRETIONS, IF DESIRED AFTER PREPARATION WITH WATER, HAVE THE PH-value adjusted so as to be in a range of 0.1 to 2, preferably approximately 1, by means of mineral acids and such pH-value is maintained constant and the mixture is thereafter agitated or stirred for 24 to 60 hours, preferably about 48 hours; 2. THE OBTAINED LIQUID PHASE OF THE UNDISSOLVED SOLIDS IS SEPARATED; AND 3. THE PH of the liquid freed of solids obtained by step (2) is adjusted to a value of at least 5 by the addition of a basic substance; and 4. AFTER TERMINATION OF THE NEUTRALIZATION THE EVENTUALLY OBTAINED PRECIPITATION IS SEPARATED-OUT.
Inventors
- 👤 Beat Kratzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:44
CPC Classifications
C; C05; C05F; C05F3/00; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/20; Y02P; Y02P20/00; Y02P20/141; Y02P20/145
Claims Analysis
Total Claims: 40
Claim 1
Independent Claim
13 words
A METHOD FOR THE PRODUCTION OF A NATURAL FERTILIZER COMPRISING THE STEPS OF:
Claim 2
Independent Claim
13 words
A METHOD FOR THE PRODUCTION OF A NATURAL FERTILIZER COMPRISING THE STEPS OF:
Claim 3
Dependent Claim
27 words
TREATING A MIXTURE OF ANIMAL SECRETIONS WITH A MINERAL ACID UNTIL ATTAINING A PH-VALUE IN THE RANGE OF 0.1 TO 2 AND MAINTAINING SUCH PH-VALUE SUBSTANTIALLY CONSTANT;
Claim 4
Dependent Claim
27 words
TREATING A MIXTURE OF ANIMAL SECRETIONS WITH A MINERAL ACID UNTIL ATTAINING A PH-VALUE IN THE RANGE OF 0.1 TO 2 AND MAINTAINING SUCH PH-VALUE SUBSTANTIALLY CONSTANT;
Claim 5
Dependent Claim
22 words
AGITATING THE MIXTURE OBTAINED BY STEP (1) FOR A PERIOD IN THE ORDER OF TO 60 HOURS IN ORDER TO DECOMPOSE SAID
Claim 6
Dependent Claim
22 words
AGITATING THE MIXTURE OBTAINED BY STEP (1) FOR A PERIOD IN THE ORDER OF TO 60 HOURS IN ORDER TO DECOMPOSE SAID
Claim 7
Dependent Claim
19 words
The method as defined in claim 1, including the step of concentrating the final product into a liquid concentrate.
Claim 8
Dependent Claim
23 words
agitating the mixture obtained by step (1) for a period in the order of to 60 hours in order to decompose said mixture;
Claim 9
Dependent Claim
23 words
agitating the mixture obtained by step (1) for a period in the order of to 60 hours in order to decompose said mixture;
Claim 10
Dependent Claim
9 words
separating the thus obtained liquid phase from undissolved solids;
Claim 11
Dependent Claim
9 words
separating the thus obtained liquid phase from undissolved solids;
Claim 12
Dependent Claim
20 words
The method as defined in claim 1, including the step of separating any precipitate formed after termination of the neutralization.
Claim 13
Dependent Claim
9 words
SEPARATING THE THUS OBTANED LIQUID PHASE FROM UNDISSOLVED SOLIDS;
Claim 14
Dependent Claim
9 words
SEPARATING THE THUS OBTANED LIQUID PHASE FROM UNDISSOLVED SOLIDS;
Claim 15
Dependent Claim
25 words
The method as defined in claim 1, including the step of admixed the animal secretions with water prior to the addition of the mineral acid.
Claim 16
Dependent Claim
31 words
regulating the pH of the liquid freed of solids obtained during step (3) above by the addition of a basic substance so as to attain a value of at least 5.
Claim 17
Dependent Claim
31 words
regulating the pH of the liquid freed of solids obtained during step (3) above by the addition of a basic substance so as to attain a value of at least 5.
Claim 18
Dependent Claim
31 words
REGULATING THE PH OF THE LIQUID FREED OF SOLIDS OBTAINED DURING STEP (3) ABOVE THE THE ADDITION OF A BASIC SUBSTANCE SO AS TO ATTAIN A VALUE OF AT LEAST 5.
Claim 19
Dependent Claim
31 words
REGULATING THE PH OF THE LIQUID FREED OF SOLIDS OBTAINED DURING STEP (3) ABOVE THE THE ADDITION OF A BASIC SUBSTANCE SO AS TO ATTAIN A VALUE OF AT LEAST 5.
Claim 20
Dependent Claim
24 words
The method as defined in claim 4, wherein the mixture of water and animal secretions contains about 70 to 80% by weight of water.
Claim 21
Dependent Claim
18 words
The method as defined in claim 1, including the step of using as the animal secretion poultry dung.
Claim 22
Dependent Claim
14 words
The method as defined in claim 6, wherein said poultry dung is chicken dung.
Claim 23
Dependent Claim
25 words
The method as defined in claim 6, including the step of using the poultry dung in admixture with at least solid secretions of other animals.
Claim 24
Dependent Claim
25 words
The method as defined in claim 6, including the step of using the poultry dung in admixture with at least liquid secretions of other animals.
Claim 25
Dependent Claim
45 words
The method as defined in claim 4, including the step of agitating the animal secretions during the preparation thereof with water for a period of approximately 2 to 12 hours at atmospheric pressure and temperature, and removing any waste gases produced as a result thereof.
Claim 26
Dependent Claim
20 words
The method as defined in claim 10, wherein the agitation step is carried out about between 5 to 6 hours.
Claim 27
Dependent Claim
23 words
The method as defined in claim 10, wherein the removal of waste gases occurs by passing the same through an alkaline charged filter.
Claim 28
Dependent Claim
22 words
The method as defined in claim 10, including the step of facilitating the removal of the waste gases by introducing a gas.
Claim 29
Dependent Claim
13 words
The method as defined in claim 13, wherein the introduced gas is air.
Claim 30
Dependent Claim
32 words
The method as defined in claim 4, further including the step of separating coarse foreign bodies from the mixture of animal secretions and water prior to the reaction with the mineral acid.
Claim 31
Dependent Claim
53 words
The method as defined in claim 1, including the step of using as the mineral acid a member selected from the group comprising sulfuric acid, nitric acid and phosphoric acid, and utilizing as the basic substance of step (4) a member selected from the group comprising calcium oxide, calcium hydroxide or calcium carbonate.
Claim 32
Dependent Claim
26 words
The method as defined in claim 1, including the step of expelling waste gases produced during step (1) through an alkaline charged filter into the atmosphere.
Claim 33
Dependent Claim
23 words
The method as defined in claim 17, including the step of facilitating the removal of the waste gases by introducing an inert gas.
Claim 34
Dependent Claim
13 words
The method as defined in claim 18, wherein the inert gas is air.
Claim 35
Dependent Claim
55 words
The method as defined in claim 1, including the step of sub-dividing the addition of the basic substance of step (4) over a time span of about 12 hours and regulating the pH-value so as to be in the order of 5.8 to 6.2, while agitating the mixture at room temperature and at standard pressure.
Claim 36
Dependent Claim
26 words
The method as defined in claim 1, wherein after termination of the addition of the basic substance separating the precipitate which is obtained during step (4).
Claim 37
Dependent Claim
12 words
The method as defined in claim 21, wherein separation occurs by centrifuging.
Claim 38
Dependent Claim
36 words
The method as defined in claim 4, including the step of regulating the starting solid content of the aqueous phase such that the solid content of the final product amounts to at least 4% by weight.
Claim 39
Dependent Claim
15 words
The method as defined in claim 1, including the step of drying the final product.
Claim 40
Dependent Claim
15 words
The method as defined in claim 24, including adding mineral fertilizer during the drying step.
References Cited (Backward Citations)
US3108868A
Cited
US3732089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |