NL7109730A - - Google Patents
Info
- Publication number
- NL7109730A NL7109730A NL7109730A NL7109730A NL7109730A NL 7109730 A NL7109730 A NL 7109730A NL 7109730 A NL7109730 A NL 7109730A NL 7109730 A NL7109730 A NL 7109730A NL 7109730 A NL7109730 A NL 7109730A
- Authority
- NL
- Netherlands
Links
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 |
|---|---|---|---|
| DE19702035731 DE2035731C3 (de) | 1970-07-18 | 1970-07-18 | Verfahren zur einstufigen kontinuierlichen Abtrennung von Destillationsrückständen aus rohen Isocyanaten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7109730A true NL7109730A (https=) | 1972-01-20 |
Family
ID=5777174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7109730A NL7109730A (https=) | 1970-07-18 | 1971-07-14 |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE770137A (https=) |
| DE (1) | DE2035731C3 (https=) |
| ES (1) | ES393391A1 (https=) |
| FR (1) | FR2103035A5 (https=) |
| GB (1) | GB1336385A (https=) |
| NL (1) | NL7109730A (https=) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4118410A (en) | 1971-02-04 | 1978-10-03 | Gottfried Reuter Gmbh I.L. | Polyphenyl-polymethylene-polyisocyanate mixtures |
| DD130143B1 (de) * | 1975-08-15 | 1979-12-27 | Guenter Muecke | Verfahren zur kontinuierlichen thermischen abtrennung organischer isocyanate aus fluessigem destillationsrueckstand |
| FR2397396A1 (fr) * | 1977-07-12 | 1979-02-09 | Ugine Kuhlmann | Procede de recuperation du toluene diisocyanate a partir des residus de fabrication |
| DE2942678A1 (de) * | 1979-10-23 | 1981-05-07 | Bayer Ag, 5090 Leverkusen | Verfahren zur aufarbeitung von vernetzten, harnstoffgruppenhaltigen isocyanatdestillationsrueckstaenden und verwendung der verfahrensprodukte als ausgangskomponenten bei der herstellung von kunststoffen |
| US6307096B1 (en) * | 1999-12-28 | 2001-10-23 | Bayer Corporation | Method for making aliphatic diisocyanates |
| CN106006806A (zh) * | 2016-07-22 | 2016-10-12 | 株洲三特环保节能有限公司 | 一种热风和列管加热器相结合的废酸浓缩处理方法及装置 |
| EP3597632A1 (de) | 2018-07-18 | 2020-01-22 | Covestro Deutschland AG | Verfahren zur rückgewinnung von diisocyanaten aus destillationsrückständen |
| US20230139632A1 (en) | 2020-03-18 | 2023-05-04 | Covestro Deutschland Ag | Method and device for purifying viscous and/or solid isocyanates from a product flow from isocyanate synthesis |
-
1970
- 1970-07-18 DE DE19702035731 patent/DE2035731C3/de not_active Expired
-
1971
- 1971-07-14 NL NL7109730A patent/NL7109730A/xx unknown
- 1971-07-15 GB GB3330271A patent/GB1336385A/en not_active Expired
- 1971-07-16 BE BE770137A patent/BE770137A/xx not_active IP Right Cessation
- 1971-07-16 FR FR7126222A patent/FR2103035A5/fr not_active Expired
- 1971-07-17 ES ES393391A patent/ES393391A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2035731C3 (de) | 1985-08-29 |
| FR2103035A5 (https=) | 1972-04-07 |
| ES393391A1 (es) | 1973-08-16 |
| DE2035731B2 (de) | 1979-03-01 |
| BE770137A (fr) | 1971-12-01 |
| DE2035731A1 (https=) | 1972-01-27 |
| GB1336385A (en) | 1973-11-07 |