US3096168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspensions of ureaform in liquid mixed fertilizers
Assignee: Honeywell International Inc
•
Filing: 1960-05-20
•
Granted: 1963-07-02
•
Expires: 1980-05-20
Abstract
No abstract record available.
Inventors
- 👤 Charles E Waters
- 👤 Rodney L Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:31
CPC Classifications
C; C05; C05B; C05B7/00; C05G; C05G5/00; C05G5/20; C05G5/27
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
THE METHOD OF PREPARING A LIQUID FERTILIZER CONTAINING A SUSPENSION OF UREAFORM THEREIN COMPRISING REACTING UREA WITH FORMALDEHYDE IN THE RATIO OF 1 TO 2.5 MOLS UREA PER MOL FORMALDEHYDE IN AN AQUEOUS PHOSPHORIC ACID MEDIUM, NEUTRALIZING THE PHOSPHORIC ACID WITH AMMONIA TO A PH LYING WITHIN THE RANGE OF 6 TO 7, CONTROLLING THE RELATIVE AMOUNTS OF WATER AND WATER-SOLUBLE INGREDIENTS OF THE MIXTURE TO ACHIEVE A DENSITY OF THE LIQUID MEDIUM OF AT LEAST 1.1 G./ML. AT 60*F., AND A SUBJECTING THE SLURRY SO OBTAINED TO VIOLENT AGITATION IN A HIGH-SHEAR-TYPE AGITATOR TO PRODUCER A STABLE SUSPENSION OF UREAFORM IN A LIQUID FERTILIZER.
Claim 2
Independent Claim
105 words
THE METHOD OF PREPARING A LIQUID FERTILIZER CONTAINING A SUSPENSION OF UREAFORM THEREIN COMPRISING REACTING UREA WITH FORMALDEHYDE IN THE RATIO OF 1 TO 2.5 MOLS UREA PER MOL FORMALDEHYDE IN AN AQUEOUS PHOSPHORIC ACID MEDIUM, NEUTRALIZING THE PHOSPHORIC ACID WITH AMMONIA TO A PH LYING WITHIN THE RANGE OF 6 TO 7, CONTROLLING THE RELATIVE AMOUNTS OF WATER AND WATER-SOLUBLE INGREDIENTS OF THE MIXTURE TO ACHIEVE A DENSITY OF THE LIQUID MEDIUM OF AT LEAST 1.1 G./ML. AT 60*F., AND A SUBJECTING THE SLURRY SO OBTAINED TO VIOLENT AGITATION IN A HIGH-SHEAR-TYPE AGITATOR TO PRODUCER A STABLE SUSPENSION OF UREAFORM IN A LIQUID FERTILIZER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |