DE1670126A1 - Verfahren zur Kuehlung der bei der Melaminsynthese erhaltenen Abgase - Google Patents
Verfahren zur Kuehlung der bei der Melaminsynthese erhaltenen AbgaseInfo
- Publication number
- DE1670126A1 DE1670126A1 DE19661670126 DE1670126A DE1670126A1 DE 1670126 A1 DE1670126 A1 DE 1670126A1 DE 19661670126 DE19661670126 DE 19661670126 DE 1670126 A DE1670126 A DE 1670126A DE 1670126 A1 DE1670126 A1 DE 1670126A1
- Authority
- DE
- Germany
- Prior art keywords
- urea
- cooling
- melt
- melamine
- gases
- 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
- 239000007789 gas Substances 0.000 title claims description 32
- 229920000877 Melamine resin Polymers 0.000 title claims description 28
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 title claims description 28
- 238000001816 cooling Methods 0.000 title claims description 16
- 230000015572 biosynthetic process Effects 0.000 title claims description 14
- 238000003786 synthesis reaction Methods 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 103
- 239000004202 carbamide Substances 0.000 claims description 53
- 239000000155 melt Substances 0.000 claims description 30
- 239000002912 waste gas Substances 0.000 claims description 6
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims description 4
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 4
- 238000000354 decomposition reaction Methods 0.000 claims description 4
- 150000003863 ammonium salts Chemical class 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims description 3
- 150000002357 guanidines Chemical class 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 150000002823 nitrates Chemical class 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 22
- 229910021529 ammonia Inorganic materials 0.000 description 11
- 239000000112 cooling gas Substances 0.000 description 8
- 238000005406 washing Methods 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 4
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M Thiocyanate anion Chemical compound [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 description 4
- SOIFLUNRINLCBN-UHFFFAOYSA-N ammonium thiocyanate Chemical compound [NH4+].[S-]C#N SOIFLUNRINLCBN-UHFFFAOYSA-N 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000005496 eutectics Effects 0.000 description 3
- 239000012943 hotmelt Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 238000000197 pyrolysis Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N formic acid Substances OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 description 1
- 239000005695 Ammonium acetate Substances 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical class F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- 235000019257 ammonium acetate Nutrition 0.000 description 1
- 229940043376 ammonium acetate Drugs 0.000 description 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000374 eutectic mixture Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- VTJCFXIGFQZUAB-UHFFFAOYSA-N guanidine;thiourea Chemical compound NC(N)=N.NC(N)=S VTJCFXIGFQZUAB-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- -1 urea ammonium thiocyanate ammonia Chemical compound 0.000 description 1
- 230000004143 urea cycle Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB0088397 | 1966-08-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1670126A1 true DE1670126A1 (de) | 1970-10-29 |
Family
ID=6984277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19661670126 Pending DE1670126A1 (de) | 1966-08-09 | 1966-08-09 | Verfahren zur Kuehlung der bei der Melaminsynthese erhaltenen Abgase |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3458511A (enExample) |
| AT (1) | AT268294B (enExample) |
| BE (1) | BE702428A (enExample) |
| DE (1) | DE1670126A1 (enExample) |
| FR (1) | FR1533740A (enExample) |
| GB (1) | GB1187808A (enExample) |
| NL (1) | NL6710870A (enExample) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1670286A1 (de) * | 1967-11-11 | 1971-01-28 | Basf Ag | Verfahren zur Aufarbeitung der bei der Melaminsynthese anfallenden Abgase |
| US3700672A (en) * | 1969-04-15 | 1972-10-24 | Nissan Chemical Ind Ltd | Process for recovering by-product gases at high pressure in melamine production |
| NL7903473A (nl) * | 1979-05-03 | 1980-11-05 | Stamicarbon | Werkwijze voor het bereiden van melamine. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2698344A (en) * | 1950-10-04 | 1954-12-28 | Cons Mining & Smelting Co | Process for the production of guanidine sulfamate |
| US3290309A (en) * | 1964-02-11 | 1966-12-06 | Chemical Construction Corp | Synthesis of melamine |
| US3386999A (en) * | 1966-02-10 | 1968-06-04 | Chemical Construction Corp | Synthesis of melamine |
-
1966
- 1966-08-09 DE DE19661670126 patent/DE1670126A1/de active Pending
-
1967
- 1967-08-02 US US657790A patent/US3458511A/en not_active Expired - Lifetime
- 1967-08-07 FR FR117092A patent/FR1533740A/fr not_active Expired
- 1967-08-07 NL NL6710870A patent/NL6710870A/xx unknown
- 1967-08-08 GB GB36329/67A patent/GB1187808A/en not_active Expired
- 1967-08-08 BE BE702428D patent/BE702428A/xx unknown
- 1967-08-09 AT AT737167A patent/AT268294B/de active
Also Published As
| Publication number | Publication date |
|---|---|
| FR1533740A (fr) | 1968-07-19 |
| BE702428A (enExample) | 1968-02-08 |
| NL6710870A (enExample) | 1968-02-12 |
| US3458511A (en) | 1969-07-29 |
| AT268294B (de) | 1969-02-10 |
| GB1187808A (en) | 1970-04-15 |
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