DE1670216C3 - Verfahren zur Vermeidung von Ver krustungen in den einer Flussig Harn stoffwasche gasseitig nachgeschalteten Tropfenabscheidern - Google Patents
Verfahren zur Vermeidung von Ver krustungen in den einer Flussig Harn stoffwasche gasseitig nachgeschalteten TropfenabscheidernInfo
- Publication number
- DE1670216C3 DE1670216C3 DE19671670216 DE1670216A DE1670216C3 DE 1670216 C3 DE1670216 C3 DE 1670216C3 DE 19671670216 DE19671670216 DE 19671670216 DE 1670216 A DE1670216 A DE 1670216A DE 1670216 C3 DE1670216 C3 DE 1670216C3
- Authority
- DE
- Germany
- Prior art keywords
- urea
- gases
- droplet
- gas
- melamine
- 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 claims description 28
- 239000004202 carbamide Substances 0.000 title claims description 28
- 239000007788 liquid Substances 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims 4
- 238000001816 cooling Methods 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims 24
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 8
- 229920000877 Melamine resin Polymers 0.000 claims 7
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims 7
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 claims 6
- 238000006243 chemical reaction Methods 0.000 claims 5
- 229910021529 ammonia Inorganic materials 0.000 claims 4
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 claims 3
- 238000002844 melting Methods 0.000 claims 3
- 230000008018 melting Effects 0.000 claims 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims 2
- FSCNUJMKSQHQSY-UHFFFAOYSA-N Gein Chemical compound COC1=CC(CC=C)=CC=C1OC1C(O)C(O)C(O)C(COC2C(C(O)C(O)CO2)O)O1 FSCNUJMKSQHQSY-UHFFFAOYSA-N 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 claims 2
- 239000000155 melt Substances 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 2
- 239000000126 substance Substances 0.000 claims 2
- 238000003786 synthesis reaction Methods 0.000 claims 2
- 238000005406 washing Methods 0.000 claims 2
- 238000006424 Flood reaction Methods 0.000 claims 1
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 229910002092 carbon dioxide Inorganic materials 0.000 claims 1
- 239000001569 carbon dioxide Substances 0.000 claims 1
- 239000003054 catalyst Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- 238000000354 decomposition reaction Methods 0.000 claims 1
- 230000008021 deposition Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 230000007257 malfunction Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- ZQKXQUJXLSSJCH-UHFFFAOYSA-N melamine cyanurate Chemical compound NC1=NC(N)=NC(N)=N1.O=C1NC(=O)NC(=O)N1 ZQKXQUJXLSSJCH-UHFFFAOYSA-N 0.000 claims 1
- 239000003595 mist Substances 0.000 claims 1
- 230000000737 periodic effect Effects 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 238000005979 thermal decomposition reaction Methods 0.000 claims 1
- 210000002700 urine Anatomy 0.000 claims 1
- 239000002699 waste material Substances 0.000 claims 1
- 238000004140 cleaning 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
- 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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US723557A US3499794A (en) | 1967-04-26 | 1968-04-23 | Avoiding encrustation in a drop separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB0092250 | 1967-04-26 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE1670216A1 DE1670216A1 (de) | 1971-01-21 |
| DE1670216B2 DE1670216B2 (de) | 1973-05-24 |
| DE1670216C3 true DE1670216C3 (de) | 1973-12-20 |
Family
ID=6986285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19671670216 Expired DE1670216C3 (de) | 1967-04-26 | 1967-04-26 | Verfahren zur Vermeidung von Ver krustungen in den einer Flussig Harn stoffwasche gasseitig nachgeschalteten Tropfenabscheidern |
Country Status (6)
| Country | Link |
|---|---|
| AT (1) | AT273979B (cg-RX-API-DMAC10.html) |
| BE (1) | BE714111A (cg-RX-API-DMAC10.html) |
| DE (1) | DE1670216C3 (cg-RX-API-DMAC10.html) |
| FR (1) | FR1560175A (cg-RX-API-DMAC10.html) |
| GB (1) | GB1215836A (cg-RX-API-DMAC10.html) |
| NL (1) | NL155313B (cg-RX-API-DMAC10.html) |
Families Citing this family (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
Also Published As
| Publication number | Publication date |
|---|---|
| DE1670216B2 (de) | 1973-05-24 |
| NL155313B (nl) | 1977-12-15 |
| FR1560175A (cg-RX-API-DMAC10.html) | 1969-03-14 |
| GB1215836A (en) | 1970-12-16 |
| AT273979B (de) | 1969-09-10 |
| DE1670216A1 (de) | 1971-01-21 |
| BE714111A (cg-RX-API-DMAC10.html) | 1968-10-24 |
| NL6805661A (cg-RX-API-DMAC10.html) | 1968-10-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| E77 | Valid patent as to the heymanns-index 1977 | ||
| 8330 | Complete disclaimer |