ES460560A1 - Procedimiento para la obtencion de isomeros de diisocianato-difenilmetano. - Google Patents
Procedimiento para la obtencion de isomeros de diisocianato-difenilmetano.Info
- Publication number
- ES460560A1 ES460560A1 ES460560A ES460560A ES460560A1 ES 460560 A1 ES460560 A1 ES 460560A1 ES 460560 A ES460560 A ES 460560A ES 460560 A ES460560 A ES 460560A ES 460560 A1 ES460560 A1 ES 460560A1
- Authority
- ES
- Spain
- Prior art keywords
- diisocyanatodiphenylmethane
- column
- fraction
- chlorine compounds
- methaneisomers
- 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
- 150000001805 chlorine compounds Chemical class 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 238000004821 distillation Methods 0.000 abstract 3
- LFSYUSUFCBOHGU-UHFFFAOYSA-N 1-isocyanato-2-[(4-isocyanatophenyl)methyl]benzene Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=CC=C1N=C=O LFSYUSUFCBOHGU-UHFFFAOYSA-N 0.000 abstract 2
- LNWBFIVSTXCJJG-UHFFFAOYSA-N [diisocyanato(phenyl)methyl]benzene Chemical class C=1C=CC=CC=1C(N=C=O)(N=C=O)C1=CC=CC=C1 LNWBFIVSTXCJJG-UHFFFAOYSA-N 0.000 abstract 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 abstract 1
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical class C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 0.000 abstract 1
- 238000007700 distillative separation Methods 0.000 abstract 1
- DYDNPESBYVVLBO-UHFFFAOYSA-N formanilide Chemical compound O=CNC1=CC=CC=C1 DYDNPESBYVVLBO-UHFFFAOYSA-N 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 abstract 1
- 229920001228 polyisocyanate Polymers 0.000 abstract 1
- 239000005056 polyisocyanate Substances 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 238000010992 reflux 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
- C07C263/18—Separation; Purification; Stabilisation; Use of additives
- C07C263/20—Separation; Purification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19762631168 DE2631168B2 (de) | 1976-07-10 | 1976-07-10 | Verfahren zur Herstellung von Diisocyanatodiphenylmethan-Isomeren mit einem eingestellten Gehalt an Chlorverbindungen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES460560A1 true ES460560A1 (es) | 1978-05-16 |
Family
ID=5982715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES460560A Expired ES460560A1 (es) | 1976-07-10 | 1977-07-08 | Procedimiento para la obtencion de isomeros de diisocianato-difenilmetano. |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS539750A (enrdf_load_stackoverflow) |
| BE (1) | BE856617A (enrdf_load_stackoverflow) |
| DE (1) | DE2631168B2 (enrdf_load_stackoverflow) |
| ES (1) | ES460560A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2357532A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1570741A (enrdf_load_stackoverflow) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54103415A (en) * | 1978-01-31 | 1979-08-14 | Ricoh Kk | Lens bonding |
| JPS54102321A (en) * | 1978-01-31 | 1979-08-11 | Ricoh Kk | Removing bubbles in lens bonding |
| JPS54102320A (en) * | 1978-01-31 | 1979-08-11 | Ricoh Kk | Lens bonding and apparatus therefor |
| DE2935318A1 (de) * | 1979-08-31 | 1981-03-26 | Bayer Ag, 51373 Leverkusen | Neue diisocyanate bzw. diisocyanatgemische der diphenylmethanreihe, verfahren zu ihrer herstellung, sowie ihre verwendung als aufbaukomponente bei der herstellung von polyurethankunststoffen nach dem isocyanat-polyadditionsverfahren |
| JPH02311452A (ja) * | 1989-05-26 | 1990-12-27 | Daicel Chem Ind Ltd | ジイソシアネート化合物 |
| JP2875877B2 (ja) * | 1990-10-23 | 1999-03-31 | 三井化学株式会社 | メチレン架橋ポリフェニレンポリイソシアネートの製造方法 |
| DE19914292A1 (de) | 1999-03-30 | 2000-10-05 | Bayer Ag | Verfahren zur Verringerung des Chlorgehaltes von organischen Isocyanaten |
| DE19914291A1 (de) | 1999-03-30 | 2000-10-05 | Bayer Ag | Verfahren zur Absenkung des Chlorgehaltes von niedermolekularen Isocyanaten |
| EP1475367B1 (de) * | 2003-05-08 | 2010-07-07 | Bayer MaterialScience AG | Verfahren zur Destillation eines Gemisches isomerer Diisocyanatodiphenylmethane |
| DE102004005319A1 (de) | 2004-02-04 | 2005-08-25 | Bayer Materialscience Ag | Verfahren zur Herstellung von hochreinem 2,4'-Methylendiphenyldiisocyanat |
| DE102005004170A1 (de) * | 2005-01-29 | 2006-08-03 | Bayer Materialscience Ag | Verfahren zur Destillation eines Gemisches isomerer Diisocyanatodiphenylmethane |
| DE102005026864A1 (de) | 2005-06-10 | 2006-12-14 | Bayer Materialscience Ag | Verfahren zur Herstellung von 4,4'-Diphenylmethandiisocyanat |
| DE102005053065A1 (de) * | 2005-11-04 | 2007-05-10 | Basf Ag | Verfahren zur Herstellung von Polyisocyanatgemischen |
| HUE030678T2 (hu) | 2010-11-17 | 2017-05-29 | Basf Se | Eljárás 4,4'-metilén-difenil-diizocianátot tartalmazó keverékek tisztítására |
| CN103298781B (zh) | 2010-11-17 | 2015-04-22 | 巴斯夫欧洲公司 | 制备亚甲基二苯基二异氰酸酯的方法 |
| US8907124B2 (en) | 2010-11-17 | 2014-12-09 | Basf Se | Process for preparing methylenedi(phenyl isocyanate) |
| EP2640695B1 (de) * | 2010-11-17 | 2015-01-07 | Basf Se | Verfahren zur aufreinigung von 4,4'-methylendiphenyldiisocyanat enthaltenden mischungen |
| US9505711B2 (en) | 2010-11-17 | 2016-11-29 | Basf Se | Method for purifying mixtures comprising 4,4′-methylenediphenyl diisocyanate |
| JP2015010183A (ja) * | 2013-06-28 | 2015-01-19 | 旭化成ケミカルズ株式会社 | ジイソシアネート組成物 |
| CN107207422B (zh) | 2015-01-30 | 2020-12-11 | 巴斯夫欧洲公司 | 低副产物的多亚苯基多亚甲基多异氰酸酯 |
| EP3498689A1 (en) * | 2017-12-14 | 2019-06-19 | Sulzer Chemtech AG | A plant and method for purifying an isomeric monomer, such as 4,4'-methylene diphenyl diisocyanate, from a crude mixture |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3219678A (en) * | 1963-02-28 | 1965-11-23 | Olin Mathieson | Process for reducing the hydrolyzable chlorine content of organic isocyanates |
| DE1805957A1 (de) * | 1967-10-31 | 1969-06-26 | Takeda Chemical Industries Ltd | Verfahren zur Reinigung von Xylylendiisocyanat |
| GB1398975A (en) * | 1971-08-16 | 1975-06-25 | Ici Ltd | Heat treatment and distillation of methylene bridged polyphenyl polyisocyanates |
| GB1384065A (en) * | 1971-11-30 | 1975-02-19 | Ici Ltd | Process for the purification of organic isocyanates |
| US3853936A (en) * | 1973-02-05 | 1974-12-10 | Olin Corp | Process for distillation of toluene diisocyanate |
| US3912600A (en) * | 1974-05-09 | 1975-10-14 | Upjohn Co | Recovery of polymethylene polyphenyl polyisocyanate from a phoshenosed polyamine feed |
-
1976
- 1976-07-10 DE DE19762631168 patent/DE2631168B2/de not_active Ceased
-
1977
- 1977-07-07 GB GB2851477A patent/GB1570741A/en not_active Expired
- 1977-07-08 BE BE179183A patent/BE856617A/xx not_active IP Right Cessation
- 1977-07-08 FR FR7721174A patent/FR2357532A1/fr active Granted
- 1977-07-08 ES ES460560A patent/ES460560A1/es not_active Expired
- 1977-07-08 JP JP8111477A patent/JPS539750A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB1570741A (en) | 1980-07-09 |
| DE2631168B2 (de) | 1979-03-08 |
| FR2357532B1 (enrdf_load_stackoverflow) | 1980-10-17 |
| JPS539750A (en) | 1978-01-28 |
| DE2631168A1 (de) | 1978-01-12 |
| BE856617A (fr) | 1978-01-09 |
| FR2357532A1 (fr) | 1978-02-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19990601 |