AT278019B - Verfahren zur abtrennung von aus harnstoff hergestelltem melamin aus reaktionsproduktgasen - Google Patents
Verfahren zur abtrennung von aus harnstoff hergestelltem melamin aus reaktionsproduktgasenInfo
- Publication number
- AT278019B AT278019B AT09239/64A AT923964A AT278019B AT 278019 B AT278019 B AT 278019B AT 09239/64 A AT09239/64 A AT 09239/64A AT 923964 A AT923964 A AT 923964A AT 278019 B AT278019 B AT 278019B
- Authority
- AT
- Austria
- Prior art keywords
- urea
- separation
- reaction product
- product gases
- melamine produced
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/40—Nitrogen atoms
- C07D251/54—Three nitrogen atoms
- C07D251/56—Preparation of melamine
- C07D251/60—Preparation of melamine from urea or from carbon dioxide and ammonia
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/40—Nitrogen atoms
- C07D251/54—Three nitrogen atoms
- C07D251/62—Purification of melamine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/406—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treating Waste Gases (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US401555A US3315442A (en) | 1964-10-05 | 1964-10-05 | Quenching of crude melamine gases |
| US401535A US3265233A (en) | 1964-10-05 | 1964-10-05 | Container and safety closure construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT278019B true AT278019B (de) | 1970-01-26 |
Family
ID=27017500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT09239/64A AT278019B (de) | 1964-10-05 | 1964-10-30 | Verfahren zur abtrennung von aus harnstoff hergestelltem melamin aus reaktionsproduktgasen |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3315442A (de) |
| AT (1) | AT278019B (de) |
| BE (1) | BE654962A (de) |
| CH (1) | CH467276A (de) |
| DE (1) | DE1445462A1 (de) |
| GB (1) | GB1075294A (de) |
| NL (1) | NL6412642A (de) |
| NO (1) | NO115078B (de) |
| SE (1) | SE302769B (de) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL282311A (de) * | 1964-01-14 | |||
| DE2317603C3 (de) * | 1973-04-07 | 1982-03-25 | Basf Ag, 6700 Ludwigshafen | Verfahren zur zumindest teilweisen Trennung von Ammoniak und Kohlendioxid enthaltenden Gasgemischen |
| US3885928A (en) * | 1973-06-18 | 1975-05-27 | Standard Oil Co Ohio | Acrylonitrile and methacrylonitrile recovery and purification system |
| DE2646804C3 (de) * | 1976-10-16 | 1982-03-11 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Gewinnung von reinem Ammoniak aus Ammoniak und Kohlendioxid enthaltenden Gasgemischen |
| NL168196C (nl) * | 1976-11-03 | 1982-03-16 | Stamicarbon | Werkwijze voor het afscheiden van nh&013 en co&012 uit een mengsel van nh&013, co&012 en h&012o. |
| NL7804668A (nl) * | 1978-04-29 | 1979-10-31 | Stamicarbon | Werkwijze voor het scheiden van nh3 en co2 uit meng- sels van nh3 ,co2 en water. |
| JPS58124528A (ja) * | 1982-01-21 | 1983-07-25 | Ise Kagaku Kogyo Kk | 昇華性物質の球状化物、その製法及び製造装置 |
| US4565867A (en) * | 1984-01-05 | 1986-01-21 | Melamine Chemicals, Inc. | Anhydrous high-pressure melamine synthesis |
| AT397214B (de) * | 1992-03-30 | 1994-02-25 | Chemie Linz Gmbh | Vorrichtung zur abscheidung von melamin |
| DE4211763A1 (de) * | 1992-04-08 | 1993-10-14 | Chemie Linz Deutschland | Vorrichtung zur Abscheidung von Melamin |
| ITMI20021026A1 (it) * | 2002-05-14 | 2003-11-14 | Eurotecnica Dev & Licensing S | Processo di produzione di melammina da urea e particolarmente per ottenere off-gas privi di melammina nello stadio di prima separazione |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2755887A (en) * | 1956-07-24 | Melamine purification | ||
| US3132143A (en) * | 1964-05-05 | Process for recovering melamine |
-
1964
- 1964-10-05 US US401555A patent/US3315442A/en not_active Expired - Lifetime
- 1964-10-23 NO NO155282A patent/NO115078B/no unknown
- 1964-10-28 BE BE654962D patent/BE654962A/xx unknown
- 1964-10-28 CH CH1393164A patent/CH467276A/de unknown
- 1964-10-29 SE SE13030/64A patent/SE302769B/xx unknown
- 1964-10-30 GB GB44444/64A patent/GB1075294A/en not_active Expired
- 1964-10-30 NL NL6412642A patent/NL6412642A/xx unknown
- 1964-10-30 AT AT09239/64A patent/AT278019B/de not_active IP Right Cessation
- 1964-10-30 DE DE19641445462 patent/DE1445462A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL6412642A (de) | 1966-04-06 |
| DE1445462A1 (de) | 1969-02-20 |
| BE654962A (de) | 1965-04-28 |
| NO115078B (de) | 1968-07-22 |
| SE302769B (de) | 1968-08-05 |
| GB1075294A (en) | 1967-07-12 |
| CH467276A (de) | 1969-01-15 |
| US3315442A (en) | 1967-04-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ELJ | Ceased due to non-payment of the annual fee |