JPH0124792B2 - - Google Patents
Info
- Publication number
- JPH0124792B2 JPH0124792B2 JP15635579A JP15635579A JPH0124792B2 JP H0124792 B2 JPH0124792 B2 JP H0124792B2 JP 15635579 A JP15635579 A JP 15635579A JP 15635579 A JP15635579 A JP 15635579A JP H0124792 B2 JPH0124792 B2 JP H0124792B2
- Authority
- JP
- Japan
- Prior art keywords
- ammeline
- ammelide
- isocyanuric acid
- urea
- crude
- 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
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 claims description 50
- 238000000034 method Methods 0.000 claims description 29
- MASBWURJQFFLOO-UHFFFAOYSA-N ammeline Chemical compound NC1=NC(N)=NC(O)=N1 MASBWURJQFFLOO-UHFFFAOYSA-N 0.000 claims description 28
- YSKUZVBSHIWEFK-UHFFFAOYSA-N ammelide Chemical compound NC1=NC(O)=NC(O)=N1 YSKUZVBSHIWEFK-UHFFFAOYSA-N 0.000 claims description 27
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 20
- 239000004202 carbamide Substances 0.000 claims description 20
- 229920000877 Melamine resin Polymers 0.000 claims description 15
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 15
- 239000007787 solid Substances 0.000 claims description 9
- 239000002994 raw material Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000002253 acid Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000005979 thermal decomposition reaction Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000000746 purification Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- WNVQBUHCOYRLPA-UHFFFAOYSA-N triuret Chemical compound NC(=O)NC(=O)NC(N)=O WNVQBUHCOYRLPA-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15635579A JPS5679678A (en) | 1979-12-04 | 1979-12-04 | Utilization and recovery of ammelide and ammeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15635579A JPS5679678A (en) | 1979-12-04 | 1979-12-04 | Utilization and recovery of ammelide and ammeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5679678A JPS5679678A (en) | 1981-06-30 |
| JPH0124792B2 true JPH0124792B2 (nl) | 1989-05-15 |
Family
ID=15625935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15635579A Granted JPS5679678A (en) | 1979-12-04 | 1979-12-04 | Utilization and recovery of ammelide and ammeline |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5679678A (nl) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4663387A (en) * | 1985-04-02 | 1987-05-05 | Kuwait Institute For Scientific Research | Utilization of melamine waste effluent |
| JPH11209353A (ja) * | 1998-01-23 | 1999-08-03 | Nissan Chem Ind Ltd | メラミン工程廃液からのメラミン、アンメリン及びアンメリドの回収方法 |
| EP2098516A1 (en) * | 2008-03-04 | 2009-09-09 | Urea Casale S.A. | Process for the production of high purity melamine from urea |
-
1979
- 1979-12-04 JP JP15635579A patent/JPS5679678A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5679678A (en) | 1981-06-30 |
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