DE1301320B - Verfahren zur katalytischen Synthese von Melamin aus Harnstoff - Google Patents
Verfahren zur katalytischen Synthese von Melamin aus HarnstoffInfo
- Publication number
- DE1301320B DE1301320B DEC35076A DEC0035076A DE1301320B DE 1301320 B DE1301320 B DE 1301320B DE C35076 A DEC35076 A DE C35076A DE C0035076 A DEC0035076 A DE C0035076A DE 1301320 B DE1301320 B DE 1301320B
- Authority
- DE
- Germany
- Prior art keywords
- urea
- melamine
- catalyst
- bed
- stream
- 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.)
- Pending
Links
- 229920000877 Melamine resin Polymers 0.000 title claims description 42
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims description 42
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 title claims description 42
- 239000004202 carbamide Substances 0.000 title claims description 41
- 238000000034 method Methods 0.000 title claims description 15
- 238000007036 catalytic synthesis reaction Methods 0.000 title claims description 3
- 239000003054 catalyst Substances 0.000 claims description 52
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 34
- 229910021529 ammonia Inorganic materials 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 description 13
- 239000007787 solid Substances 0.000 description 13
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 12
- 230000003197 catalytic effect Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 11
- 230000015572 biosynthetic process Effects 0.000 description 10
- 238000001704 evaporation Methods 0.000 description 10
- 230000008020 evaporation Effects 0.000 description 10
- 239000000047 product Substances 0.000 description 7
- 239000001569 carbon dioxide Substances 0.000 description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 description 6
- 238000000354 decomposition reaction Methods 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000499 gel Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 210000002700 urine Anatomy 0.000 description 2
- YZEZMSPGIPTEBA-UHFFFAOYSA-N 2-n-(4,6-diamino-1,3,5-triazin-2-yl)-1,3,5-triazine-2,4,6-triamine Chemical compound NC1=NC(N)=NC(NC=2N=C(N)N=C(N)N=2)=N1 YZEZMSPGIPTEBA-UHFFFAOYSA-N 0.000 description 1
- 241001026509 Kata Species 0.000 description 1
- 241001072332 Monia Species 0.000 description 1
- 241000158147 Sator Species 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- MASBWURJQFFLOO-UHFFFAOYSA-N ammeline Chemical compound NC1=NC(N)=NC(O)=N1 MASBWURJQFFLOO-UHFFFAOYSA-N 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003716 rejuvenation Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011949 solid catalyst Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 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)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US344102A US3290309A (en) | 1964-02-11 | 1964-02-11 | Synthesis of melamine |
| US552209A US3328401A (en) | 1964-02-11 | 1966-05-23 | Synthesis of melamine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1301320B true DE1301320B (de) | 1969-08-21 |
Family
ID=26993754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEC35076A Pending DE1301320B (de) | 1964-02-11 | 1965-02-11 | Verfahren zur katalytischen Synthese von Melamin aus Harnstoff |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US3290309A (en, 2012) |
| BE (1) | BE659587A (en, 2012) |
| DE (1) | DE1301320B (en, 2012) |
| FR (1) | FR1524037A (en, 2012) |
| GB (1) | GB1105315A (en, 2012) |
| NL (1) | NL6501634A (en, 2012) |
| SE (1) | SE319484B (en, 2012) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT278020B (de) * | 1966-04-05 | 1970-01-26 | Chemie Linz Ag | Verfahren zur katalytischen Herstellung von Melamin |
| DE1670126A1 (de) * | 1966-08-09 | 1970-10-29 | Basf Ag | Verfahren zur Kuehlung der bei der Melaminsynthese erhaltenen Abgase |
| DE1695567A1 (de) * | 1966-08-16 | 1971-05-06 | Nissan Chemical Ind Ltd | Verfahren zur Herstellung von hochwertigem Melamin |
| US3414571A (en) * | 1966-09-16 | 1968-12-03 | Melamine Res Corp | Process for production of melamine from urea |
| DE102005023042B4 (de) * | 2005-05-06 | 2007-10-31 | Lurgi Ag | Verfahren zur Herstellung von Melamin |
| CN103717289A (zh) | 2011-04-11 | 2014-04-09 | Ada-Es股份有限公司 | 用于气体组分捕集的流化床方法和系统 |
| CA2884778C (en) | 2012-09-20 | 2019-06-11 | ADA-ES, Inc. | Method and system to reclaim functional sites on a sorbent contaminated by heat stable salts |
| CN104277006A (zh) * | 2014-10-30 | 2015-01-14 | 安徽金禾实业股份有限公司 | 一种三聚氰胺生产中热气冷却器在线切换的方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3093644A (en) * | 1963-06-11 | Preparation of melamine | ||
| US3095416A (en) * | 1963-06-25 | Urea to melamine process | ||
| CA697084A (en) * | 1960-03-23 | 1964-11-03 | J. Steggerda Johannes | Preparation of melamine |
| CH446365A (de) * | 1960-06-14 | 1967-11-15 | Sueddeutsche Kalkstickstoff | Katalysator zur Herstellung von Melamin |
| DE1209570B (de) * | 1964-03-28 | 1966-01-27 | Basf Ag | Verfahren zur Herstellung von Melamin |
-
1964
- 1964-02-11 US US344102A patent/US3290309A/en not_active Expired - Lifetime
-
1965
- 1965-02-04 GB GB4995/65A patent/GB1105315A/en not_active Expired
- 1965-02-10 NL NL6501634A patent/NL6501634A/xx unknown
- 1965-02-10 FR FR4932A patent/FR1524037A/fr not_active Expired
- 1965-02-10 SE SE1690/65A patent/SE319484B/xx unknown
- 1965-02-11 BE BE659587D patent/BE659587A/xx unknown
- 1965-02-11 DE DEC35076A patent/DE1301320B/de active Pending
-
1966
- 1966-05-23 US US552209A patent/US3328401A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR1524037A (fr) | 1968-05-10 |
| BE659587A (en, 2012) | 1965-08-11 |
| SE319484B (en, 2012) | 1970-01-19 |
| NL6501634A (en, 2012) | 1965-08-12 |
| US3290309A (en) | 1966-12-06 |
| US3328401A (en) | 1967-06-27 |
| GB1105315A (en) | 1968-03-06 |
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