CH409923A - Verfahren zur Herstellung von Harnstoff - Google Patents
Verfahren zur Herstellung von HarnstoffInfo
- Publication number
- CH409923A CH409923A CH562865A CH562865A CH409923A CH 409923 A CH409923 A CH 409923A CH 562865 A CH562865 A CH 562865A CH 562865 A CH562865 A CH 562865A CH 409923 A CH409923 A CH 409923A
- Authority
- CH
- Switzerland
- Prior art keywords
- urea
- production
- Prior art date
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title 1
- 239000004202 carbamide Substances 0.000 title 1
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
- 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 |
|---|---|---|---|
| IT2173459 | 1959-12-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH409923A true CH409923A (de) | 1966-03-31 |
Family
ID=11186104
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1444560A CH408898A (de) | 1959-12-31 | 1960-12-27 | Verfahren zur Herstellung von Harnstoff und Vorrichtung zu dessen Herstellung |
| CH562865A CH409923A (de) | 1959-12-31 | 1960-12-27 | Verfahren zur Herstellung von Harnstoff |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1444560A CH408898A (de) | 1959-12-31 | 1960-12-27 | Verfahren zur Herstellung von Harnstoff und Vorrichtung zu dessen Herstellung |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3406200A (de) |
| AT (1) | AT242160B (de) |
| BE (1) | BE598704A (de) |
| CH (2) | CH408898A (de) |
| DE (1) | DE1418971A1 (de) |
| ES (1) | ES263679A1 (de) |
| GB (2) | GB974412A (de) |
| NL (1) | NL259135A (de) |
| SE (1) | SE303282B (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1148767A (en) * | 1965-10-25 | 1969-04-16 | Nissan Chemical Ind Ltd | Process for the production of melamine |
| CN102786442B (zh) * | 2012-08-16 | 2014-12-03 | 沧州大化股份有限公司 | 一种降低尿素装置合成进料系统能源消耗的方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE301279C (de) * | 1916-08-09 | |||
| NL16594C (de) * | 1924-12-23 | 1900-01-01 | ||
| US1730208A (en) * | 1926-03-02 | 1929-10-01 | Arthur B Lamb | Process for production of urea |
| US2632316A (en) * | 1950-11-04 | 1953-03-24 | Texas Co | Separation of carbon dioxide from gaseous mixtures |
| US2848493A (en) * | 1955-06-27 | 1958-08-19 | Allied Chem | Process for synthesis of urea |
| US2842941A (en) * | 1956-03-29 | 1958-07-15 | J F Pritchard & Company | Method for purification of carbon dioxide |
| US2929690A (en) * | 1956-04-27 | 1960-03-22 | Whiting Corp | Apparatus for removing impurities from vapors released in evaporation process |
| US2913493A (en) * | 1956-10-03 | 1959-11-17 | Hydrocarbon Research Inc | Urea synthesis |
| US2908556A (en) * | 1957-08-08 | 1959-10-13 | Nat Distillers Chem Corp | Reactor design |
-
0
- NL NL259135D patent/NL259135A/xx unknown
-
1960
- 1960-12-27 CH CH1444560A patent/CH408898A/de unknown
- 1960-12-27 CH CH562865A patent/CH409923A/de unknown
- 1960-12-27 DE DE19601418971 patent/DE1418971A1/de active Pending
- 1960-12-28 US US78896A patent/US3406200A/en not_active Expired - Lifetime
- 1960-12-30 AT AT406063A patent/AT242160B/de active
- 1960-12-30 SE SE12667/60A patent/SE303282B/xx unknown
- 1960-12-30 BE BE598704A patent/BE598704A/fr unknown
- 1960-12-30 ES ES0263679A patent/ES263679A1/es not_active Expired
-
1961
- 1961-01-02 GB GB6969/64A patent/GB974412A/en not_active Expired
- 1961-01-02 GB GB72/61A patent/GB974411A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE303282B (de) | 1968-08-26 |
| AT242160B (de) | 1965-09-10 |
| US3406200A (en) | 1968-10-15 |
| CH408898A (de) | 1966-03-15 |
| GB974412A (en) | 1964-11-04 |
| ES263679A1 (es) | 1961-05-16 |
| DE1418971A1 (de) | 1968-10-10 |
| BE598704A (fr) | 1961-06-30 |
| NL259135A (de) | 1900-01-01 |
| GB974411A (en) | 1964-11-04 |
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