US2737522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for manufacturing organic nitro compounds
Assignee: Nitroglycerin AB
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Filing: 1952-11-03
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Granted: 1956-03-06
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Expires: 1972-11-03
Abstract
No abstract record available.
Inventors
- 👤 Nilsson Nils Agne Percy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:45
CPC Classifications
B; B01; B01J; B01J14/00; B01J19/00; B01J19/26; C; C07; C07B; C07B43/00; C07B43/02; C07C; C07C201/00; C07C201/02; C07C201/06; C07C201/08; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00105; B01J2219/00159
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
IN THE MANUFACTURE OF ORGANIC NITRO COMPOUNDS, SELECTED FROM THE GROUP CONSISTING OF NITROGLYCERINE, GLYCOL NITRATE, DINITRODIETHYLENEGLYCOL, DINITRODIETHYLENEDIGLYCOL, MONONITROBENZENE, MONONITROTOLUENE AND ETHYL NITRATE, WHICH CAN BE PRODUCED BY CONTACTING THE CORRESPONDING UNNITRATED ORGANIC COMPOUNDS WITH A NITRATING ACID IN THE LIQUID PHASE; THE IMPROVEMENT WHICH COMPRISES INJECTING UNDER PRESSURE AND IN THE FORM OF A TUBULENT JET A NITRATING ACID INTO A CONSTRICTED ELONGATED REACTION ZONE, ASPIRATING THE CORRESPONDING UNNITRATED COMPOUND TO BE NITRATED INTO SAID JET BY THE VACUUM PRODUCED BY SAID JET AND CONTROLLING THE REACTION TEMPERATURE IN THE JET MIXTURE WITHIN SAFE LIMITS BY CONTROL OF THE TEMPERATURE OF THE NITRATING ACID WITHIN THE RANGE OF FROM ABOUT 5* TO -20* C. PASSING THE REACTION MIXTURE FROM SAID JET INTO A SEPARATING ZONE AND THERE SEPARATING THE SPENT ACID FROM THE RESULTING ORGANIC NITRO COMPOUND.
Claim 2
Dependent Claim
138 words
IN THE MANUFACTURE OF ORGANIC NITRO COMPOUNDS, SELECTED FROM THE GROUP CONSISTING OF NITROGLYCERINE, GLYCOL NITRATE, DINITRODIETHYLENEGLYCOL, DINITRODIETHYLENEDIGLYCOL, MONONITROBENZENE, MONONITROTOLUENE AND ETHYL NITRATE, WHICH CAN BE PRODUCED BY CONTACTING THE CORRESPONDING UNNITRATED ORGANIC COMPOUNDS WITH A NITRATING ACID IN THE LIQUID PHASE; THE IMPROVEMENT WHICH COMPRISES INJECTING UNDER PRESSURE AND IN THE FORM OF A TUBULENT JET A NITRATING ACID INTO A CONSTRICTED ELONGATED REACTION ZONE, ASPIRATING THE CORRESPONDING UNNITRATED COMPOUND TO BE NITRATED INTO SAID JET BY THE VACUUM PRODUCED BY SAID JET AND CONTROLLING THE REACTION TEMPERATURE IN THE JET MIXTURE WITHIN SAFE LIMITS BY CONTROL OF THE TEMPERATURE OF THE NITRATING ACID WITHIN THE RANGE OF FROM ABOUT 5* TO -20* C. PASSING THE REACTION MIXTURE FROM SAID JET INTO A SEPARATING ZONE AND THERE SEPARATING THE SPENT ACID FROM THE RESULTING ORGANIC NITRO COMPOUND.
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) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |