DE883149C - Verfahren zur Herstellung von Melamin - Google Patents
Verfahren zur Herstellung von MelaminInfo
- Publication number
- DE883149C DE883149C DEP33670A DEP0033670A DE883149C DE 883149 C DE883149 C DE 883149C DE P33670 A DEP33670 A DE P33670A DE P0033670 A DEP0033670 A DE P0033670A DE 883149 C DE883149 C DE 883149C
- Authority
- DE
- Germany
- Prior art keywords
- melamine
- urea
- ammonia
- autoclave
- heated
- 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
- 229920000877 Melamine resin Polymers 0.000 title claims description 53
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 title claims description 53
- 238000000034 method Methods 0.000 title claims description 16
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 45
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 30
- 239000004202 carbamide Substances 0.000 claims description 30
- 238000006243 chemical reaction Methods 0.000 claims description 24
- 229910021529 ammonia Inorganic materials 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000005979 thermal decomposition reaction Methods 0.000 claims description 8
- SQSPRWMERUQXNE-UHFFFAOYSA-N Guanylurea Chemical compound NC(=N)NC(N)=O SQSPRWMERUQXNE-UHFFFAOYSA-N 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 4
- 239000007858 starting material Substances 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000002474 experimental method Methods 0.000 description 9
- 239000000047 product Substances 0.000 description 7
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 4
- QYTOONVFPBUIJG-UHFFFAOYSA-N azane;cyanic acid Chemical compound [NH4+].[O-]C#N QYTOONVFPBUIJG-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- MASBWURJQFFLOO-UHFFFAOYSA-N ammeline Chemical compound NC1=NC(N)=NC(O)=N1 MASBWURJQFFLOO-UHFFFAOYSA-N 0.000 description 2
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- YSKUZVBSHIWEFK-UHFFFAOYSA-N ammelide Chemical compound NC1=NC(O)=NC(O)=N1 YSKUZVBSHIWEFK-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- COAPBYURHXLGMG-UHFFFAOYSA-N azane;1,3,5-triazine-2,4,6-triamine Chemical compound N.NC1=NC(N)=NC(N)=N1 COAPBYURHXLGMG-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002357 guanidines Chemical class 0.000 description 1
- 150000002391 heterocyclic compounds Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 150000002897 organic nitrogen compounds Chemical class 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000013022 venting Methods 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
-
- 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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US49521643 US2566231A (en) | 1943-07-17 | 1943-07-17 | Preparation of melamine |
| US166446XA | 1947-11-06 | 1947-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE883149C true DE883149C (de) | 1953-07-16 |
Family
ID=91465551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEP33670A Expired DE883149C (de) | 1943-07-17 | 1949-02-09 | Verfahren zur Herstellung von Melamin |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US2566231A (en, 2012) |
| AT (2) | AT164797B (en, 2012) |
| BE (1) | BE460282A (en, 2012) |
| CH (1) | CH266367A (en, 2012) |
| DE (1) | DE883149C (en, 2012) |
| FR (1) | FR913384A (en, 2012) |
| GB (1) | GB598175A (en, 2012) |
| LU (1) | LU28860A1 (en, 2012) |
| NL (1) | NL61113C (en, 2012) |
| SE (1) | SE122183C1 (en, 2012) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1237126B (de) * | 1959-06-01 | 1967-03-23 | Azote Office Nat Ind | Vorrichtung zur Erzeugung von Melamin |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3179664A (en) * | 1965-04-20 | Processes for preparing melamine | ||
| US2566228A (en) * | 1951-08-28 | Production of melamine | ||
| US3116294A (en) * | 1963-12-31 | Process- for preparing high-purity melamine from urea | ||
| US3111519A (en) * | 1963-11-19 | Process fos the production of | ||
| US2644820A (en) * | 1953-07-07 | Inlet for | ||
| US2918467A (en) * | 1959-12-22 | Production of melamine | ||
| US2527316A (en) * | 1950-10-24 | Production of cyanuric acid | ||
| US2819266A (en) * | 1958-01-07 | Manufacture of melamine | ||
| US3093641A (en) * | 1963-06-11 | formaini | ||
| US2684964A (en) * | 1954-07-27 | Production of melamine | ||
| US2658892A (en) * | 1953-11-10 | Preparation of melamine fkom | ||
| US2557986A (en) * | 1951-06-26 | Preparation of melamine | ||
| US2999093A (en) * | 1961-09-05 | Preparation of melamese from | ||
| US2845424A (en) * | 1958-07-29 | Preparation of melamine | ||
| US3152128A (en) * | 1964-10-06 | Preparation of melamine | ||
| US2769005A (en) * | 1956-10-30 | Process for the preparation of melamine | ||
| US2760961A (en) * | 1953-09-18 | 1956-08-28 | American Cyanamid Co | Preparation of melamine |
| DE975688C (de) * | 1953-03-29 | 1962-05-10 | Sueddeutsche Kalkstickstoff | Verfahren zur Herstellung von Melamin aus Harnstoff |
| US2759974A (en) * | 1953-09-11 | 1956-08-21 | American Cyanamid Co | Preparation of guanidines from cyanates of alkali metals and sulfamates |
| US2815269A (en) * | 1955-06-22 | 1957-12-03 | Monsanto Chemicals | Gas releasing device and method |
| DE1169452B (de) * | 1959-06-01 | 1964-05-06 | Azote Office Nat Ind | Verfahren zur Herstellung von Melamin |
| DE1098935B (de) * | 1959-07-15 | 1961-02-09 | Colgate Palmolive Co | Verfahren zur Herstellung von reinem Biuret |
| US3386999A (en) * | 1966-02-10 | 1968-06-04 | Chemical Construction Corp | Synthesis of melamine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1902889A (en) * | 1933-03-28 | Industbie axtiengesellschaft | ||
| US2191361A (en) * | 1940-02-20 | Manufacture of amino-triazine | ||
| US2164705A (en) * | 1939-07-04 | Manufacture of melamine | ||
| US2301629A (en) * | 1942-11-10 | Manufacture of melamine | ||
| DE527237C (de) * | 1928-01-01 | 1931-06-23 | Fritz Sander Dr Ing | Verfahren zur Darstellung von Guanidin bzw. Guanidinsalzen, insbesondere von Guanidinphoshpat |
| GB337394A (en) * | 1929-07-29 | 1930-10-29 | Ig Farbenindustrie Ag | Improvements in the production of urea |
| US2101807A (en) * | 1935-05-13 | 1937-12-07 | Dow Chemical Co | Fertilizer |
| US2142965A (en) * | 1936-06-04 | 1939-01-03 | Dow Chemical Co | Nitrogenous fertilizer |
-
1943
- 1943-07-17 US US49521643 patent/US2566231A/en not_active Expired - Lifetime
-
1944
- 1944-07-17 SE SE715447A patent/SE122183C1/sv unknown
- 1944-10-16 GB GB19968/44A patent/GB598175A/en not_active Expired
-
1945
- 1945-08-14 FR FR913384D patent/FR913384A/fr not_active Expired
- 1945-09-24 BE BE460282D patent/BE460282A/fr unknown
- 1945-09-26 CH CH266367D patent/CH266367A/fr unknown
-
1946
- 1946-02-25 NL NL123714A patent/NL61113C/nl active
-
1947
- 1947-12-31 LU LU28860D patent/LU28860A1/fr unknown
-
1948
- 1948-01-06 AT AT164797D patent/AT164797B/de active
- 1948-11-03 AT AT166446D patent/AT166446B/de active
-
1949
- 1949-02-09 DE DEP33670A patent/DE883149C/de not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1237126B (de) * | 1959-06-01 | 1967-03-23 | Azote Office Nat Ind | Vorrichtung zur Erzeugung von Melamin |
Also Published As
| Publication number | Publication date |
|---|---|
| NL61113C (nl) | 1948-05-15 |
| FR913384A (fr) | 1946-09-05 |
| US2566231A (en) | 1951-08-28 |
| AT166446B (de) | 1950-07-25 |
| CH266367A (fr) | 1950-01-31 |
| BE460282A (en, 2012) | 1945-10-31 |
| AT164797B (de) | 1949-12-10 |
| SE122183C1 (en, 2012) | 1948-07-15 |
| LU28860A1 (en, 2012) | 1948-04-28 |
| GB598175A (en) | 1948-02-12 |
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