NL6807142A - - Google Patents
Info
- Publication number
- NL6807142A NL6807142A NL6807142A NL6807142A NL6807142A NL 6807142 A NL6807142 A NL 6807142A NL 6807142 A NL6807142 A NL 6807142A NL 6807142 A NL6807142 A NL 6807142A NL 6807142 A NL6807142 A NL 6807142A
- Authority
- NL
- Netherlands
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
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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
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 |
|---|---|---|---|
| CH718267A CH498811A (de) | 1967-05-22 | 1967-05-22 | Verfahren zur Herstellung von Harnstoff aus Ammoniak und Kohlendioxyd |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6807142A true NL6807142A (xx) | 1968-11-25 |
Family
ID=4321181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6807142A NL6807142A (xx) | 1967-05-22 | 1968-05-20 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3607938A (xx) |
| CH (1) | CH498811A (xx) |
| FR (1) | FR1566041A (xx) |
| GB (1) | GB1185944A (xx) |
| NL (1) | NL6807142A (xx) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3954861A (en) * | 1968-02-05 | 1976-05-04 | Snamprogetti S.P.A | Process for producing urea |
| US4137262A (en) * | 1969-10-16 | 1979-01-30 | Snam Progetti S.P.A. | Process for the production of urea |
| US3984469A (en) * | 1969-10-16 | 1976-10-05 | Snam Progetti S.P.A. | Process for the production of urea |
| US4042626A (en) * | 1972-07-12 | 1977-08-16 | Chemical Construction Corporation | Integrated two-stage urea synthesis |
| CA1017535A (en) * | 1974-03-29 | 1977-09-20 | Charles Vydra | Method and apparatus for the continuous condensation of a gaseous mixture of ammonia, carbon dioxide and water vapour |
| IT1014987B (it) * | 1974-06-12 | 1977-04-30 | Snam Progetti | Procedimento integrato urea am moniaca |
| GB1506129A (en) * | 1975-04-23 | 1978-04-05 | Snam Progetti | Formation of ammonium carbamate solution |
| JPS5517346A (en) * | 1978-07-24 | 1980-02-06 | Toyo Eng Corp | Synthetic method of urea |
| JPS5811432B2 (ja) * | 1979-10-08 | 1983-03-02 | 三井東圧化学株式会社 | 尿素合成法 |
| JPS56128749A (en) * | 1980-03-13 | 1981-10-08 | Mitsui Toatsu Chem Inc | Stripping of unreacted material in urea preparation process |
| IT1141030B (it) * | 1980-08-29 | 1986-10-01 | Snam Progetti | Procedimento per la produzione di urea |
| JPS5746954A (en) * | 1980-09-05 | 1982-03-17 | Mitsui Toatsu Chem Inc | Synthesis of urea |
| JPS5750954A (en) * | 1980-09-12 | 1982-03-25 | Mitsui Toatsu Chem Inc | Synthesis of urea |
| US4500734A (en) * | 1980-12-11 | 1985-02-19 | Snamprogetti S.P.A. | Process for the production of urea |
| IT1211125B (it) * | 1981-10-16 | 1989-09-29 | Ortu Francesco | Composti azotati. processo per la preparazione di |
| EP0096151B1 (en) * | 1982-06-03 | 1986-07-23 | Montedison S.p.A. | Method for avoiding the corrosion of strippers in urea manufacturing plants |
| EP3398935A1 (en) * | 2017-05-05 | 2018-11-07 | Casale Sa | Process and plant for the synthesis of urea |
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1967
- 1967-05-22 CH CH718267A patent/CH498811A/de not_active IP Right Cessation
-
1968
- 1968-05-17 US US730111A patent/US3607938A/en not_active Expired - Lifetime
- 1968-05-20 NL NL6807142A patent/NL6807142A/xx unknown
- 1968-05-20 GB GB24026/68A patent/GB1185944A/en not_active Expired
- 1968-05-22 FR FR1566041D patent/FR1566041A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1185944A (en) | 1970-03-25 |
| US3607938A (en) | 1971-09-21 |
| CH498811A (de) | 1970-11-15 |
| FR1566041A (xx) | 1969-05-02 |