SU983124A1 - Способ выделени органических диизоцианатов из жидкого остатка их дистилл ции - Google Patents
Способ выделени органических диизоцианатов из жидкого остатка их дистилл ции Download PDFInfo
- Publication number
- SU983124A1 SU983124A1 SU762389494A SU2389494A SU983124A1 SU 983124 A1 SU983124 A1 SU 983124A1 SU 762389494 A SU762389494 A SU 762389494A SU 2389494 A SU2389494 A SU 2389494A SU 983124 A1 SU983124 A1 SU 983124A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- residue
- tdi
- content
- distillation
- temperature
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 11
- 125000005442 diisocyanate group Chemical group 0.000 title claims description 4
- 239000007788 liquid Substances 0.000 title description 11
- 238000004821 distillation Methods 0.000 claims description 21
- 239000010408 film Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 2
- 238000010348 incorporation Methods 0.000 claims 1
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Substances CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 22
- 239000012948 isocyanate Substances 0.000 description 13
- 150000002513 isocyanates Chemical class 0.000 description 13
- 238000010438 heat treatment Methods 0.000 description 12
- 238000001704 evaporation Methods 0.000 description 8
- 230000008020 evaporation Effects 0.000 description 8
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical group C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 5
- 150000001412 amines Chemical class 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910000669 Chrome steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- JXCHMDATRWUOAP-UHFFFAOYSA-N diisocyanatomethylbenzene Chemical compound O=C=NC(N=C=O)C1=CC=CC=C1 JXCHMDATRWUOAP-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 150000002605 large molecules Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD18786675A DD130143B1 (de) | 1975-08-15 | 1975-08-15 | Verfahren zur kontinuierlichen thermischen abtrennung organischer isocyanate aus fluessigem destillationsrueckstand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU983124A1 true SU983124A1 (ru) | 1982-12-23 |
Family
ID=5501391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU762389494A SU983124A1 (ru) | 1975-08-15 | 1976-08-13 | Способ выделени органических диизоцианатов из жидкого остатка их дистилл ции |
Country Status (4)
| Country | Link |
|---|---|
| DD (1) | DD130143B1 (https=) |
| FR (1) | FR2320938A1 (https=) |
| GB (1) | GB1520055A (https=) |
| SU (1) | SU983124A1 (https=) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2796693C2 (ru) * | 2017-12-14 | 2023-05-29 | Зульцер Менеджмент Аг | Установка и способ получения очищенного изомерного мономера, такого как 4,4'-метилендифенилдиизоцианат, из сырой смеси |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2397396A1 (fr) * | 1977-07-12 | 1979-02-09 | Ugine Kuhlmann | Procede de recuperation du toluene diisocyanate a partir des residus de fabrication |
| DE2915830A1 (de) * | 1979-04-19 | 1980-10-23 | Basf Ag | Gewinnung von toluylendiisocyanat und/oder hoehersiedenden loesungsmitteln im wirbelbett aus destillationsrueckstaenden der toluylendiisocanat-herstellung |
| SE450641B (sv) * | 1983-02-01 | 1987-07-13 | Johnson Axel Eng Ab | Sett for avskiljning av vattenlosliga foreningar efter forangning av vatten suspenderat i olja och anvendning av forfarandet |
| SE8604441L (sv) * | 1986-10-20 | 1988-04-21 | Nobel Chematur Ab | Sett att utvinna isocyanater |
| ES2113388T3 (es) * | 1991-06-26 | 1998-05-01 | Lucky Ltd | Procedimiento para la preparacion selectiva de 4,4-metilen-bis-(n-fenilalquilcarbamato). |
| DE4127514A1 (de) * | 1991-08-20 | 1993-02-25 | Bayer Ag | Verfahren zur gewinnung von polyisocyanaten aus destillationsrueckstaenden der toluylendiisocyanatherstellung |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3457291A (en) * | 1965-04-01 | 1969-07-22 | Union Carbide Corp | Production of isocyanates |
| US3405040A (en) * | 1965-08-31 | 1968-10-08 | Mobay Chemical Corp | Method for recovering tolylene diisocyanate |
| US3694323A (en) * | 1968-08-05 | 1972-09-26 | Du Pont | Separation of distillable isocyanates from their phosgenation masses |
| CH506322A (de) * | 1969-03-17 | 1971-04-30 | List Heinz | Mehrspindelige Misch- und Knetmaschine |
| DE2035731C3 (de) * | 1970-07-18 | 1985-08-29 | Bayer Ag, 5090 Leverkusen | Verfahren zur einstufigen kontinuierlichen Abtrennung von Destillationsrückständen aus rohen Isocyanaten |
-
1975
- 1975-08-15 DD DD18786675A patent/DD130143B1/xx unknown
-
1976
- 1976-08-12 FR FR7624652A patent/FR2320938A1/fr active Granted
- 1976-08-12 GB GB3366976A patent/GB1520055A/en not_active Expired
- 1976-08-13 SU SU762389494A patent/SU983124A1/ru active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2796693C2 (ru) * | 2017-12-14 | 2023-05-29 | Зульцер Менеджмент Аг | Установка и способ получения очищенного изомерного мономера, такого как 4,4'-метилендифенилдиизоцианат, из сырой смеси |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1520055A (en) | 1978-08-02 |
| DD130143B1 (de) | 1979-12-27 |
| FR2320938A1 (fr) | 1977-03-11 |
| DD130143A1 (de) | 1978-03-08 |
| FR2320938B1 (https=) | 1980-05-30 |
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