SI9300429A - Method for producing isocyanic acid by decomposition of n,n-disubstituted ureas - Google Patents
Method for producing isocyanic acid by decomposition of n,n-disubstituted ureas Download PDFInfo
- Publication number
- SI9300429A SI9300429A SI9300429A SI9300429A SI9300429A SI 9300429 A SI9300429 A SI 9300429A SI 9300429 A SI9300429 A SI 9300429A SI 9300429 A SI9300429 A SI 9300429A SI 9300429 A SI9300429 A SI 9300429A
- Authority
- SI
- Slovenia
- Prior art keywords
- isocyanic acid
- process according
- urea
- ureas
- substituted
- Prior art date
Links
- OWIKHYCFFJSOEH-UHFFFAOYSA-N Isocyanic acid Chemical compound N=C=O OWIKHYCFFJSOEH-UHFFFAOYSA-N 0.000 title claims description 40
- XLJMAIOERFSOGZ-UHFFFAOYSA-N anhydrous cyanic acid Natural products OC#N XLJMAIOERFSOGZ-UHFFFAOYSA-N 0.000 title claims description 40
- 235000013877 carbamide Nutrition 0.000 title claims description 19
- 150000003672 ureas Chemical class 0.000 title claims description 14
- 238000000354 decomposition reaction Methods 0.000 title claims description 3
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 12
- 239000004202 carbamide Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 9
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 7
- 239000003085 diluting agent Substances 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 4
- 125000003545 alkoxy group Chemical group 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- CIUQDSCDWFSTQR-UHFFFAOYSA-N [C]1=CC=CC=C1 Chemical class [C]1=CC=CC=C1 CIUQDSCDWFSTQR-UHFFFAOYSA-N 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical group 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 2
- 125000003277 amino group Chemical group 0.000 claims 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims 1
- 125000000467 secondary amino group Chemical class [H]N([*:1])[*:2] 0.000 claims 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 43
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 15
- DCAYPVUWAIABOU-UHFFFAOYSA-N hexadecane Chemical compound CCCCCCCCCCCCCCCC DCAYPVUWAIABOU-UHFFFAOYSA-N 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- CRWNQZTZTZWPOF-UHFFFAOYSA-N 2-methyl-4-phenylpyridine Chemical compound C1=NC(C)=CC(C=2C=CC=CC=2)=C1 CRWNQZTZTZWPOF-UHFFFAOYSA-N 0.000 description 7
- DHKHKXVYLBGOIT-UHFFFAOYSA-N 1,1-Diethoxyethane Chemical compound CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 6
- CRIIMEOFWXKQLD-UHFFFAOYSA-N 1,1-dioctylurea Chemical compound CCCCCCCCN(C(N)=O)CCCCCCCC CRIIMEOFWXKQLD-UHFFFAOYSA-N 0.000 description 5
- LMBAMZFZZJWAAO-UHFFFAOYSA-N CCCCCCCCCCCCCCCC.C(C1=CC=CC=C1)NC(NCC1=CC=CC=C1)=O Chemical compound CCCCCCCCCCCCCCCC.C(C1=CC=CC=C1)NC(NCC1=CC=CC=C1)=O LMBAMZFZZJWAAO-UHFFFAOYSA-N 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 5
- -1 chlorine or bromine Chemical class 0.000 description 5
- 150000003335 secondary amines Chemical class 0.000 description 5
- KATOLVAXCGIBLO-UHFFFAOYSA-N 1,3-dibenzylurea Chemical compound C=1C=CC=CC=1CNC(=O)NCC1=CC=CC=C1 KATOLVAXCGIBLO-UHFFFAOYSA-N 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- LTIBQZLAXJMKEF-UHFFFAOYSA-N azane;isocyanic acid Chemical compound N.N=C=O LTIBQZLAXJMKEF-UHFFFAOYSA-N 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000011068 loading method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 150000001412 amines Chemical group 0.000 description 3
- 150000002170 ethers Chemical class 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000005457 ice water Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- RZJRJXONCZWCBN-UHFFFAOYSA-N octadecane Chemical compound CCCCCCCCCCCCCCCCCC RZJRJXONCZWCBN-UHFFFAOYSA-N 0.000 description 2
- 239000012074 organic phase Substances 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- 150000003738 xylenes Chemical class 0.000 description 2
- WJLIRQYBTMQFSB-UHFFFAOYSA-N 1,1-didodecylurea Chemical compound CCCCCCCCCCCCN(C(N)=O)CCCCCCCCCCCC WJLIRQYBTMQFSB-UHFFFAOYSA-N 0.000 description 1
- IMPHZBHLSYGMSM-UHFFFAOYSA-N 1,1-dihexylurea Chemical compound CCCCCCN(C(N)=O)CCCCCC IMPHZBHLSYGMSM-UHFFFAOYSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- 101710134784 Agnoprotein Proteins 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- CJZYCVGKHOTLNI-UHFFFAOYSA-N CCCCCCCCCCCCCCCC.C(CCCCCCC)NC(NCCCCCCCC)=O Chemical compound CCCCCCCCCCCCCCCC.C(CCCCCCC)NC(NCCCCCCCC)=O CJZYCVGKHOTLNI-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 1
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 125000000068 chlorophenyl group Chemical group 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229940038384 octadecane Drugs 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/62—Preparation of compounds containing amino groups bound to a carbon skeleton by cleaving carbon-to-nitrogen, sulfur-to-nitrogen, or phosphorus-to-nitrogen bonds, e.g. hydrolysis of amides, N-dealkylation of amines or quaternary ammonium compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C3/00—Cyanogen; Compounds thereof
- C01C3/001—Preparation by decomposing nitrogen-containing organic compounds, e.g. molasse waste or urea
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0163092A AT398749B (de) | 1992-08-13 | 1992-08-13 | Verfahren zur herstellung von isocyansäure durch zersetzen von n,n-disubstituierten harnstoffen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SI9300429A true SI9300429A (en) | 1995-04-30 |
Family
ID=3517573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SI9300429A SI9300429A (en) | 1992-08-13 | 1993-08-13 | Method for producing isocyanic acid by decomposition of n,n-disubstituted ureas |
Country Status (8)
| Country | Link |
|---|---|
| KR (1) | KR940003928A (enrdf_load_stackoverflow) |
| AT (1) | ATE142988T1 (enrdf_load_stackoverflow) |
| DE (1) | DE59303834D1 (enrdf_load_stackoverflow) |
| MX (1) | MX9304899A (enrdf_load_stackoverflow) |
| SI (1) | SI9300429A (enrdf_load_stackoverflow) |
| SK (1) | SK71793A3 (enrdf_load_stackoverflow) |
| TW (1) | TW278068B (enrdf_load_stackoverflow) |
| ZA (1) | ZA935236B (enrdf_load_stackoverflow) |
-
1993
- 1993-07-08 SK SK717-93A patent/SK71793A3/sk unknown
- 1993-07-20 ZA ZA935236A patent/ZA935236B/xx unknown
- 1993-07-21 DE DE59303834T patent/DE59303834D1/de not_active Expired - Fee Related
- 1993-07-21 AT AT93111623T patent/ATE142988T1/de active
- 1993-07-23 TW TW082105884A patent/TW278068B/zh active
- 1993-08-12 MX MX9304899A patent/MX9304899A/es unknown
- 1993-08-12 KR KR1019930015594A patent/KR940003928A/ko not_active Ceased
- 1993-08-13 SI SI9300429A patent/SI9300429A/sl unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ZA935236B (en) | 1994-03-02 |
| DE59303834D1 (de) | 1996-10-24 |
| SK71793A3 (en) | 1994-06-08 |
| ATE142988T1 (de) | 1996-10-15 |
| TW278068B (enrdf_load_stackoverflow) | 1996-06-11 |
| MX9304899A (es) | 1994-04-29 |
| KR940003928A (ko) | 1994-03-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1273574B1 (en) | Process for the preparation of 4,6-dichloropyrimidine | |
| CZ280732B6 (cs) | Způsob dělení kyseliny isokyanaté ze směsi této kyseliny a amoniaku | |
| Bennet et al. | The Preparation of Isocyanates by the Thermal Decomposition of Substituted Ureas1 | |
| US4978786A (en) | Chemical process for the preparation of oxamide derivatives and compounds prepared thereby | |
| SI9300429A (en) | Method for producing isocyanic acid by decomposition of n,n-disubstituted ureas | |
| US4013758A (en) | Process for preparing hydrazines | |
| US5648537A (en) | Process for the synthesis of substituted carbodiimides | |
| EP3383878B1 (en) | Process for isolating a (thio)phosphoric acid derivative | |
| CZ368090A3 (en) | Process for preparing non-symmetrically substituted urea derivatives | |
| US4362893A (en) | Preparation of C-nitrosodiarylamines from diarylamines | |
| US5360601A (en) | Process for the preparation of isocyanic acid by the decomposition of N,N-disubstituted ureas | |
| Franz et al. | A New Synthesis of Ureas. IV. The Preparation of Unsymmetrical Ureas from Carbon Monoxide, Sulfur, and Amines | |
| US3359322A (en) | Sulfonium ylids | |
| US4141913A (en) | Method of generating lower alkyl and cycloalkyl isocyanates | |
| US5250717A (en) | Process for preparing N,N-diarylthioureas and arylisothiocyanates | |
| Thrasher et al. | Reactions of pentafluorosulfanyl isocyanate and isothiocyanate | |
| SI9300427A (en) | Process for preparing isocyanates by decomposition of n,n,n'-three substituted ureas | |
| US4224256A (en) | Method of preparing ether adducts of organic-alkali metal-boron salts | |
| US2525075A (en) | Preparation of thioamides | |
| EP0550965A2 (en) | Method for inhibiting thermal decomposition of cycloalkanone oximes | |
| US5227483A (en) | Process for recovery of amines and volatile acids from amine salts | |
| CA1130305A (en) | Process for the preparation of n,n'-disubstituted 2-naphthaleneethanimidamide and intermediates used therein | |
| US4656271A (en) | Process for producing cyanuric acid from urea hydrohalides | |
| US4168278A (en) | Method for the preparation of aminoamides employing ε-caprolactam | |
| US3450709A (en) | Process for the preparation of ring-substituted 2-aminoimidazoles |