SE419539B - Forfarande for framstellning av isocyanat genom termisk sonderdelning av en ester av karbaminsyra vid forhojd temperatur, i nervaro av en inert organisk vetska varefter erhallen isocyanat och alkohol separeras - Google Patents
Forfarande for framstellning av isocyanat genom termisk sonderdelning av en ester av karbaminsyra vid forhojd temperatur, i nervaro av en inert organisk vetska varefter erhallen isocyanat och alkohol separerasInfo
- Publication number
- SE419539B SE419539B SE7405108A SE7405108A SE419539B SE 419539 B SE419539 B SE 419539B SE 7405108 A SE7405108 A SE 7405108A SE 7405108 A SE7405108 A SE 7405108A SE 419539 B SE419539 B SE 419539B
- Authority
- SE
- Sweden
- Prior art keywords
- isocyanate
- ester
- radicals
- carbon atoms
- mono
- Prior art date
Links
- 239000012948 isocyanate Substances 0.000 title abstract 6
- 150000002513 isocyanates Chemical class 0.000 title abstract 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title abstract 2
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 title abstract 2
- 239000007788 liquid Substances 0.000 title abstract 2
- KJAMZCVTJDTESW-UHFFFAOYSA-N tiracizine Chemical compound C1CC2=CC=CC=C2N(C(=O)CN(C)C)C2=CC(NC(=O)OCC)=CC=C21 KJAMZCVTJDTESW-UHFFFAOYSA-N 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- 238000002207 thermal evaporation Methods 0.000 title 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 4
- 150000002148 esters Chemical class 0.000 abstract 3
- 125000001931 aliphatic group Chemical group 0.000 abstract 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 abstract 2
- 125000003710 aryl alkyl group Chemical group 0.000 abstract 2
- 125000003118 aryl group Chemical group 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 2
- 229920006395 saturated elastomer Polymers 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- XTFIVUDBNACUBN-UHFFFAOYSA-N 1,3,5-trinitro-1,3,5-triazinane Chemical compound [O-][N+](=O)N1CN([N+]([O-])=O)CN([N+]([O-])=O)C1 XTFIVUDBNACUBN-UHFFFAOYSA-N 0.000 abstract 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical class [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 abstract 1
- 150000004996 alkyl benzenes Chemical class 0.000 abstract 1
- 125000000217 alkyl group Chemical group 0.000 abstract 1
- 150000001733 carboxylic acid esters Chemical class 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 150000002170 ethers Chemical class 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 239000012442 inert solvent Substances 0.000 abstract 1
- 150000002576 ketones Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 125000001997 phenyl group Chemical class [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C263/00—Preparation of derivatives of isocyanic acid
- C07C263/04—Preparation of derivatives of isocyanic acid from or via carbamates or carbamoyl halides
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 |
|---|---|---|---|
| US35730173A | 1973-05-04 | 1973-05-04 | |
| US44929174A | 1974-03-08 | 1974-03-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE419539B true SE419539B (sv) | 1981-08-10 |
Family
ID=26999595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7405108A SE419539B (sv) | 1973-05-04 | 1974-04-16 | Forfarande for framstellning av isocyanat genom termisk sonderdelning av en ester av karbaminsyra vid forhojd temperatur, i nervaro av en inert organisk vetska varefter erhallen isocyanat och alkohol separeras |
Country Status (21)
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5219624A (en) * | 1975-08-07 | 1977-02-15 | Mitsui Toatsu Chem Inc | Process for preparation of isocyanates |
| JPS5488222A (en) * | 1977-12-20 | 1979-07-13 | Mitsubishi Chem Ind Ltd | Preparation of isocyanate from carbamate |
| DE2819826A1 (de) | 1978-05-05 | 1979-11-08 | Bayer Ag | Verfahren zur herstellung von urethanen |
| JPS5576484U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1978-11-13 | 1980-05-26 | ||
| DE3009489A1 (de) | 1980-03-12 | 1981-09-17 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von urethanen |
| US4487713A (en) * | 1981-06-26 | 1984-12-11 | Exxon Research & Engineering Co. | Production of isocyanates from esters of aromatic carbamic acids (urethanes) |
| JPH02231461A (ja) * | 1989-03-06 | 1990-09-13 | Mitsubishi Gas Chem Co Inc | キシレンジイソシアネートの製造方法 |
| DE4141402A1 (de) * | 1991-12-16 | 1993-06-17 | Bayer Ag | Verfahren zur herstellung von hochreinen aromatischen di- und/oder polyurethanen |
| DE10209095A1 (de) | 2002-03-01 | 2003-09-11 | Basf Ag | Verfahren zur Herstellung von Isocyanaten |
| US9000219B2 (en) * | 2009-12-24 | 2015-04-07 | Mitsui Chemicals, Inc. | Method for treatment of isocyanate residue, and method for treatment of carbonate |
-
1974
- 1974-04-02 CA CA196,577A patent/CA1023379A/en not_active Expired
- 1974-04-11 AU AU67801/74A patent/AU477106B2/en not_active Expired
- 1974-04-16 SE SE7405108A patent/SE419539B/xx unknown
- 1974-04-23 IL IL44694A patent/IL44694A/xx unknown
- 1974-04-24 IN IN927/CAL/1974A patent/IN141148B/en unknown
- 1974-04-24 PH PH15776A patent/PH11683A/en unknown
- 1974-04-29 YU YU01200/74A patent/YU120074A/xx unknown
- 1974-05-02 NL NL7405881A patent/NL7405881A/xx unknown
- 1974-05-03 FR FR747415446A patent/FR2228056B1/fr not_active Expired
- 1974-05-03 ES ES425950A patent/ES425950A1/es not_active Expired
- 1974-05-03 NO NO741607A patent/NO140794C/no unknown
- 1974-05-03 CH CH608974A patent/CH598199A5/xx not_active IP Right Cessation
- 1974-05-03 LU LU69986A patent/LU69986A1/xx unknown
- 1974-05-03 GB GB1957874A patent/GB1458595A/en not_active Expired
- 1974-05-03 DE DE2421503A patent/DE2421503B2/de not_active Ceased
- 1974-05-03 HU HU74AA00000769A patent/HU171538B/hu unknown
- 1974-05-03 DD DD178284A patent/DD112990A5/xx unknown
- 1974-05-03 RO RO7400078670A patent/RO63097A/ro unknown
- 1974-05-03 AR AR253577A patent/AR202301A1/es active
- 1974-05-04 JP JP49050194A patent/JPS5030832A/ja active Pending
-
1977
- 1977-12-31 MY MY1977322A patent/MY7700322A/xx unknown
Also Published As
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