FR1088890A - Perfectionnements à la purification de l'urée - Google Patents
Perfectionnements à la purification de l'uréeInfo
- Publication number
- FR1088890A FR1088890A FR1088890DA FR1088890A FR 1088890 A FR1088890 A FR 1088890A FR 1088890D A FR1088890D A FR 1088890DA FR 1088890 A FR1088890 A FR 1088890A
- Authority
- FR
- France
- Prior art keywords
- urea purification
- urea
- purification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
- C07C273/04—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds from carbon dioxide and ammonia
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S159/00—Concentrating evaporators
- Y10S159/09—Two liquids dried simultaneously
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US334519A US2701262A (en) | 1953-02-02 | 1953-02-02 | Urea purification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1088890A true FR1088890A (fr) | 1955-03-11 |
Family
ID=23307596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1088890D Expired FR1088890A (fr) | 1953-02-02 | 1953-12-03 | Perfectionnements à la purification de l'urée |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2701262A (fr) |
| FR (1) | FR1088890A (fr) |
| GB (1) | GB753342A (fr) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2894878A (en) * | 1953-03-25 | 1959-07-14 | Chemical Construction Corp | Recovery of carbon dioxide free ammonia in the production of urea |
| US2848493A (en) * | 1955-06-27 | 1958-08-19 | Allied Chem | Process for synthesis of urea |
| US3049563A (en) * | 1957-04-05 | 1962-08-14 | Sxpaf | |
| US3046307A (en) * | 1957-04-05 | 1962-07-24 | Distillation process for synthesizing | |
| BE567727A (fr) * | 1957-05-18 | |||
| US3155722A (en) * | 1960-01-29 | 1964-11-03 | Chemical Construction Corp | Recovery of residual ammonia and carbon dioxide in the synthesis of urea |
| US3155723A (en) * | 1960-02-04 | 1964-11-03 | Chemical Construction Corp | Synthesis of urea and recovery of residual reactants |
| US3305582A (en) * | 1963-09-11 | 1967-02-21 | Chemical Construction Corp | Urea synthesis with recovery of excess ammonia |
| US3519054A (en) * | 1969-01-06 | 1970-07-07 | Colgate Palmolive Co | Process for producing a particulate product |
| NL8201652A (nl) * | 1982-04-21 | 1983-11-16 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| IT1163795B (it) * | 1983-07-18 | 1987-04-08 | Montedison Spa | Apparecchio per lo strippaggio dell'ammoniaca dalle soluzioni provenienti dalla sintesi dell'urea |
-
1953
- 1953-02-02 US US334519A patent/US2701262A/en not_active Expired - Lifetime
- 1953-11-17 GB GB31837/53A patent/GB753342A/en not_active Expired
- 1953-12-03 FR FR1088890D patent/FR1088890A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB753342A (en) | 1956-07-25 |
| US2701262A (en) | 1955-02-01 |
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