GB1215836A - Avoiding encrustation of urea and its thermal decomposition products in a drop separator - Google Patents
Avoiding encrustation of urea and its thermal decomposition products in a drop separatorInfo
- Publication number
- GB1215836A GB1215836A GB1958468A GB1958468A GB1215836A GB 1215836 A GB1215836 A GB 1215836A GB 1958468 A GB1958468 A GB 1958468A GB 1958468 A GB1958468 A GB 1958468A GB 1215836 A GB1215836 A GB 1215836A
- Authority
- GB
- United Kingdom
- Prior art keywords
- urea
- encrustation
- drop separator
- thermal decomposition
- decomposition products
- 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
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title abstract 8
- 239000004202 carbamide Substances 0.000 title abstract 8
- 238000005979 thermal decomposition reaction Methods 0.000 title abstract 3
- 239000000155 melt Substances 0.000 abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- 238000011010 flushing procedure Methods 0.000 abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract 1
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical class NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 abstract 1
- 229920000877 Melamine resin Polymers 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
- 239000012495 reaction gas Substances 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treating Waste Gases (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB0092250 | 1967-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1215836A true GB1215836A (en) | 1970-12-16 |
Family
ID=6986285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1958468A Expired GB1215836A (en) | 1967-04-26 | 1968-04-25 | Avoiding encrustation of urea and its thermal decomposition products in a drop separator |
Country Status (6)
| Country | Link |
|---|---|
| AT (1) | AT273979B (enExample) |
| BE (1) | BE714111A (enExample) |
| DE (1) | DE1670216C3 (enExample) |
| FR (1) | FR1560175A (enExample) |
| GB (1) | GB1215836A (enExample) |
| NL (1) | NL155313B (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202000010990A1 (it) * | 2020-05-14 | 2021-11-14 | Eurotecnica Melamine Ag | Metodo di lavaggio di un separatore per urea fusa e relativo apparato separatore |
-
1967
- 1967-04-26 DE DE19671670216 patent/DE1670216C3/de not_active Expired
-
1968
- 1968-04-22 NL NL6805661A patent/NL155313B/xx not_active IP Right Cessation
- 1968-04-23 FR FR1560175D patent/FR1560175A/fr not_active Expired
- 1968-04-24 BE BE714111D patent/BE714111A/xx not_active IP Right Cessation
- 1968-04-25 GB GB1958468A patent/GB1215836A/en not_active Expired
- 1968-04-26 AT AT410568A patent/AT273979B/de active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202000010990A1 (it) * | 2020-05-14 | 2021-11-14 | Eurotecnica Melamine Ag | Metodo di lavaggio di un separatore per urea fusa e relativo apparato separatore |
| EP3909694A1 (en) * | 2020-05-14 | 2021-11-17 | Eurotecnica Melamine Ag | Method for washing a separator for processing molten urea and relative separation equipment |
| CN113663605A (zh) * | 2020-05-14 | 2021-11-19 | 欧技三聚氰胺有限公司 | 用于洗涤处理熔融尿素的分离器的方法以及相关的分离器 |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1560175A (enExample) | 1969-03-14 |
| AT273979B (de) | 1969-09-10 |
| DE1670216C3 (de) | 1973-12-20 |
| NL155313B (nl) | 1977-12-15 |
| DE1670216B2 (de) | 1973-05-24 |
| BE714111A (enExample) | 1968-10-24 |
| DE1670216A1 (de) | 1971-01-21 |
| NL6805661A (enExample) | 1968-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1276792A (en) | Acetone purification process | |
| GB1295167A (enExample) | ||
| GB1051080A (enExample) | ||
| GB1237780A (en) | Processing offgas from the synthesis of melamine | |
| GB1212605A (en) | Continuous production of isobutylidene diurea | |
| GB1106024A (en) | Urea synthesis | |
| ES8306103A1 (es) | "un procedimiento mejorado para la preparacion de urea". | |
| GB1445011A (en) | Continuous production of cyanuric acid | |
| GB1156099A (en) | Improvements in and relating to the Production of Auto-Condensation Products of Urea, in Particular Biuret. | |
| GB1240499A (en) | Separating ammonia from offgas obtained in the synthesis of melamine | |
| IE33593L (en) | Adiponitrile | |
| GB1155907A (en) | Improvements in and relating to The Pyrolysis Of Urea | |
| IE32209L (en) | Production of urea | |
| GB1025427A (en) | Process for the production of cyclohexene and methylcyclohexene | |
| ATE40343T1 (de) | Verfahren zur herstellung von cyanamid. | |
| GB1450377A (en) | Process for the preparation of melon | |
| GB1499791A (en) | Method for the catalytical preparation of acrylonitrile | |
| GB1275490A (en) | Process for separating off melamine from a hot synthesis gas mixture which contains melamine vapour | |
| GB1419576A (en) | Manufacture of melamine | |
| GB1222678A (en) | Process for purifying melamine | |
| ES309851A1 (es) | Metodo de sintesis de urea. | |
| CA975797A (en) | Process for the production of urea from a solution containing ammonium carbamate, ammonia and water, with a total recycle of ammonia and carbon dioxide which were not transformed | |
| GB1032326A (en) | A process for the production and separation of melamine | |
| GB1187808A (en) | Cooling Offgas obtained in the Synthesis of Melamine. | |
| GB1334871A (en) | Urea crystals pellets prills and the like |