NL259135A - - Google Patents
Info
- Publication number
- NL259135A NL259135A NL259135DA NL259135A NL 259135 A NL259135 A NL 259135A NL 259135D A NL259135D A NL 259135DA NL 259135 A NL259135 A NL 259135A
- 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
-
- 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 |
|---|---|
| NL259135A true NL259135A (fr) | 1900-01-01 |
Family
ID=11186104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL259135D NL259135A (fr) | 1959-12-31 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3406200A (fr) |
| AT (1) | AT242160B (fr) |
| BE (1) | BE598704A (fr) |
| CH (2) | CH409923A (fr) |
| DE (1) | DE1418971A1 (fr) |
| ES (1) | ES263679A1 (fr) |
| GB (2) | GB974411A (fr) |
| NL (1) | NL259135A (fr) |
| SE (1) | SE303282B (fr) |
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 (fr) * | 1916-08-09 | |||
| NL16594C (fr) * | 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 CH562865A patent/CH409923A/de unknown
- 1960-12-27 CH CH1444560A patent/CH408898A/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 ES ES0263679A patent/ES263679A1/es not_active Expired
- 1960-12-30 SE SE12667/60A patent/SE303282B/xx unknown
- 1960-12-30 AT AT406063A patent/AT242160B/de active
- 1960-12-30 BE BE598704A patent/BE598704A/fr unknown
-
1961
- 1961-01-02 GB GB72/61A patent/GB974411A/en not_active Expired
- 1961-01-02 GB GB6969/64A patent/GB974412A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB974411A (en) | 1964-11-04 |
| CH409923A (de) | 1966-03-31 |
| ES263679A1 (es) | 1961-05-16 |
| BE598704A (fr) | 1961-06-30 |
| DE1418971A1 (de) | 1968-10-10 |
| CH408898A (de) | 1966-03-15 |
| GB974412A (en) | 1964-11-04 |
| AT242160B (de) | 1965-09-10 |
| SE303282B (fr) | 1968-08-26 |
| US3406200A (en) | 1968-10-15 |