NO131643B - - Google Patents
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- Publication number
- NO131643B NO131643B NO4873/70A NO487370A NO131643B NO 131643 B NO131643 B NO 131643B NO 4873/70 A NO4873/70 A NO 4873/70A NO 487370 A NO487370 A NO 487370A NO 131643 B NO131643 B NO 131643B
- Authority
- NO
- Norway
- Prior art keywords
- urea
- melamine
- solution
- synthesis
- ammonium carbamate
- Prior art date
Links
- 239000004202 carbamide Substances 0.000 claims description 68
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 67
- 229920000877 Melamine resin Polymers 0.000 claims description 58
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 58
- 238000003786 synthesis reaction Methods 0.000 claims description 41
- 230000015572 biosynthetic process Effects 0.000 claims description 40
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims description 32
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 15
- 238000000859 sublimation Methods 0.000 claims description 13
- 230000008022 sublimation Effects 0.000 claims description 13
- 239000013078 crystal Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 42
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 21
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 16
- 229910002092 carbon dioxide Inorganic materials 0.000 description 12
- 238000001816 cooling Methods 0.000 description 8
- 238000000926 separation method Methods 0.000 description 8
- 239000000725 suspension Substances 0.000 description 8
- 229910021529 ammonia Inorganic materials 0.000 description 6
- 239000001569 carbon dioxide Substances 0.000 description 6
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 238000002425 crystallisation Methods 0.000 description 5
- 230000008025 crystallization Effects 0.000 description 5
- 238000005406 washing Methods 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000012452 mother liquor Substances 0.000 description 3
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 3
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 2
- 239000001099 ammonium carbonate Substances 0.000 description 2
- 235000012501 ammonium carbonate Nutrition 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 150000003672 ureas Chemical class 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XGDAKJKCJURQAF-UHFFFAOYSA-N azane;carbamic acid Chemical compound N.N.NC(O)=O XGDAKJKCJURQAF-UHFFFAOYSA-N 0.000 description 1
- ZEYWAHILTZGZBH-UHFFFAOYSA-N azane;carbon dioxide Chemical compound N.O=C=O ZEYWAHILTZGZBH-UHFFFAOYSA-N 0.000 description 1
- RHKKPTWYACIZMY-UHFFFAOYSA-N azane;carbon dioxide;hydrate Chemical class N.O.O=C=O RHKKPTWYACIZMY-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- UXKUODQYLDZXDL-UHFFFAOYSA-N fulminic acid Chemical compound [O-][N+]#C UXKUODQYLDZXDL-UHFFFAOYSA-N 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 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
- C07C273/12—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 combined with the synthesis of melamine
-
- 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
- Y02P20/10—Process efficiency
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 |
|---|---|---|---|
| NL6919152A NL6919152A (fr) | 1969-12-20 | 1969-12-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO131643B true NO131643B (fr) | 1975-03-24 |
| NO131643C NO131643C (fr) | 1975-07-02 |
Family
ID=19808679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO4873/70A NO131643C (fr) | 1969-12-20 | 1970-12-18 |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US3697521A (fr) |
| JP (1) | JPS4911376B1 (fr) |
| AT (1) | AT311989B (fr) |
| BE (1) | BE760524A (fr) |
| CH (1) | CH547263A (fr) |
| DE (1) | DE2062551A1 (fr) |
| ES (1) | ES386653A1 (fr) |
| FR (1) | FR2074090A5 (fr) |
| GB (1) | GB1320950A (fr) |
| NL (1) | NL6919152A (fr) |
| NO (1) | NO131643C (fr) |
| SE (1) | SE381657B (fr) |
| ZA (1) | ZA708473B (fr) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52106360U (fr) * | 1976-02-06 | 1977-08-12 | ||
| NL7903623A (nl) * | 1979-05-09 | 1980-11-11 | Stamicarbon | Werkwijze voor het zuiveren van ureumhoudend afvalwater en werkwijze voor het bereiden van melamine. |
| US4433146A (en) * | 1982-04-07 | 1984-02-21 | Stamicarbon B.V. | Process for the preparation of melamine |
| NL1014281C2 (nl) * | 2000-02-03 | 2001-08-06 | Dsm Nv | Werkwijze voor de bereiding van melamine uit ureum. |
| EP1918274A1 (fr) * | 2006-11-04 | 2008-05-07 | Urea Casale S.A. | Procédé de préparation integrée de l'urée et de la mélamine |
| DE102007022462A1 (de) * | 2007-05-09 | 2008-11-13 | Ami-Agrolinz Melamine International Gmbh | Verfahren und Vorrichtung zur Behandlung einer Ammoniumcarbonatlösung |
| EP2050740A1 (fr) * | 2007-10-15 | 2009-04-22 | Basf Se | Procédé de fabrication de mélamine |
| US9863725B1 (en) | 2012-02-29 | 2018-01-09 | The United States Of America As Represented By The Secretary Of The Air Force | Systems and methods for thermal management through use of ammonium carbamate |
| CN111995592B (zh) * | 2020-09-30 | 2024-02-06 | 四川金象赛瑞化工股份有限公司 | 一种尿素与三聚氰胺联产的方法和装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3310558A (en) * | 1967-03-21 | Melamine recovery | ||
| US3239522A (en) * | 1963-03-12 | 1966-03-08 | Chemical Construction Corp | Synthesis of urea and melamine |
| US3290308A (en) * | 1964-02-11 | 1966-12-06 | Chemical Construction Corp | Synthesis of pure melamine |
| US3544628A (en) * | 1965-09-20 | 1970-12-01 | Pullman Inc | Urea synthesis |
| GB1148767A (en) * | 1965-10-25 | 1969-04-16 | Nissan Chemical Ind Ltd | Process for the production of melamine |
| US3503970A (en) * | 1967-07-19 | 1970-03-31 | Mitsui Toatsu Chemicals | Integrated process for producing urea and melamine |
-
1969
- 1969-12-20 NL NL6919152A patent/NL6919152A/xx unknown
-
1970
- 1970-12-15 US US98466A patent/US3697521A/en not_active Expired - Lifetime
- 1970-12-15 ZA ZA708473A patent/ZA708473B/xx unknown
- 1970-12-16 GB GB5979070A patent/GB1320950A/en not_active Expired
- 1970-12-18 AT AT1143770A patent/AT311989B/de not_active IP Right Cessation
- 1970-12-18 NO NO4873/70A patent/NO131643C/no unknown
- 1970-12-18 DE DE19702062551 patent/DE2062551A1/de active Pending
- 1970-12-18 BE BE760524A patent/BE760524A/fr unknown
- 1970-12-18 CH CH1886870A patent/CH547263A/xx not_active IP Right Cessation
- 1970-12-19 ES ES386653A patent/ES386653A1/es not_active Expired
- 1970-12-21 JP JP45115606A patent/JPS4911376B1/ja active Pending
- 1970-12-21 SE SE7017363A patent/SE381657B/xx unknown
- 1970-12-21 FR FR7046018A patent/FR2074090A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1320950A (en) | 1973-06-20 |
| JPS4911376B1 (fr) | 1974-03-16 |
| NO131643C (fr) | 1975-07-02 |
| DE2062551A1 (de) | 1971-08-05 |
| US3697521A (en) | 1972-10-10 |
| AT311989B (de) | 1973-12-10 |
| SE381657B (sv) | 1975-12-15 |
| FR2074090A5 (fr) | 1971-10-01 |
| CH547263A (de) | 1974-03-29 |
| ZA708473B (en) | 1971-09-29 |
| ES386653A1 (es) | 1973-03-16 |
| NL6919152A (fr) | 1971-06-22 |
| BE760524A (fr) | 1971-06-18 |
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