IT1136630B - Metodo per il recupero di pentaeritritolo da miscele residue della sintesi da acetaldeide e formaldeide - Google Patents
Metodo per il recupero di pentaeritritolo da miscele residue della sintesi da acetaldeide e formaldeideInfo
- Publication number
- IT1136630B IT1136630B IT21891/81A IT2189181A IT1136630B IT 1136630 B IT1136630 B IT 1136630B IT 21891/81 A IT21891/81 A IT 21891/81A IT 2189181 A IT2189181 A IT 2189181A IT 1136630 B IT1136630 B IT 1136630B
- Authority
- IT
- Italy
- Prior art keywords
- pentaeritritol
- acetaldehyde
- formaldehyde
- synthesis
- recovery
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/88—Separation; Purification; Use of additives, e.g. for stabilisation by treatment giving rise to a chemical modification of at least one compound
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/128—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by alcoholysis
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/36—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring increasing the number of carbon atoms by reactions with formation of hydroxy groups, which may occur via intermediates being derivatives of hydroxy, e.g. O-metal
- C07C29/38—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring increasing the number of carbon atoms by reactions with formation of hydroxy groups, which may occur via intermediates being derivatives of hydroxy, e.g. O-metal by reaction with aldehydes or ketones
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT21891/81A IT1136630B (it) | 1981-05-22 | 1981-05-22 | Metodo per il recupero di pentaeritritolo da miscele residue della sintesi da acetaldeide e formaldeide |
| US06/379,778 US4435604A (en) | 1981-05-22 | 1982-05-19 | Method for the recovery of pentaerythritol from the residual mixtures of the synthesis from acetaldehyde and formaldehyde |
| DE8282104481T DE3262857D1 (en) | 1981-05-22 | 1982-05-21 | Method for the recovery of pentaerythritol from the residual mixtures of the synthesis from acetaldehyde and formaldehyde |
| EP82104481A EP0065774B1 (en) | 1981-05-22 | 1982-05-21 | Method for the recovery of pentaerythritol from the residual mixtures of the synthesis from acetaldehyde and formaldehyde |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT21891/81A IT1136630B (it) | 1981-05-22 | 1981-05-22 | Metodo per il recupero di pentaeritritolo da miscele residue della sintesi da acetaldeide e formaldeide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT8121891A0 IT8121891A0 (it) | 1981-05-22 |
| IT1136630B true IT1136630B (it) | 1986-09-03 |
Family
ID=11188294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT21891/81A IT1136630B (it) | 1981-05-22 | 1981-05-22 | Metodo per il recupero di pentaeritritolo da miscele residue della sintesi da acetaldeide e formaldeide |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4435604A (it) |
| EP (1) | EP0065774B1 (it) |
| DE (1) | DE3262857D1 (it) |
| IT (1) | IT1136630B (it) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053884C (zh) * | 1994-12-01 | 2000-06-28 | 中国石油化工总公司 | 一种抗氧剂生产过程中结晶母液的回收新工艺 |
| ES2128936B1 (es) * | 1996-05-22 | 2000-01-16 | Patentes Novedades Sa | Procedimiento para la obtencion de pentaeritritol. |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA713611A (en) | 1965-07-13 | O. Meissner Fritz | Process for the cleavage of acetals | |
| CA576266A (en) | 1959-05-19 | Hercules Powder Company | Purification of pentaerythritol | |
| CA684683A (en) | 1964-04-21 | R.M. Gibb Alexander | Manufacture of pentaerythritol or derivatives thereof | |
| DE1049841B (de) * | 1959-02-05 | Rheinpreussen Aktiengesellschaft für Bergbau und Chemie, Homberg (Ndrh.) | Verfahren zur Herstellung von 1,1,3,3-Tetramethylolbutanol-(2) | |
| US2407920A (en) * | 1942-09-25 | 1946-09-17 | Hercules Powder Co Ltd | Process of producing pentaerythritol |
| US2533737A (en) | 1949-02-01 | 1950-12-12 | Hercules Powder Co Ltd | Resolution of crude mother liquors obtained in manufacture of pentaerythritol |
| US3076854A (en) | 1955-12-05 | 1963-02-05 | Heyden Newport Chemical Corp | Recovery of trimethylolpropane |
| GB824551A (en) * | 1958-05-14 | 1959-12-02 | Ici Ltd | Improvements in and relating to the production of 1:3-diols |
| US3097245A (en) | 1959-01-13 | 1963-07-09 | Trojan Powder Co | Process for the preparation of trimethylolalkane |
| DE1162824B (de) * | 1962-01-19 | 1964-02-13 | Fa. Josef Meissner, Köln-Bayenthal | Verfahren zur Herstellung von Pentaerythrit und Dipentaerythrit durch Kondensation von Formaldehyd und Acetaldehyd. |
| JPS4924043B1 (it) * | 1969-11-29 | 1974-06-20 | ||
| US4083931A (en) | 1976-08-23 | 1978-04-11 | Industrial Sales And Factoring Corporation | Process for treating aldol-condensation polyol waste liquor |
| US4105575A (en) | 1976-10-12 | 1978-08-08 | Imc Chemical Group, Inc. | Partial resolution of pentaerythritol waste liquors |
-
1981
- 1981-05-22 IT IT21891/81A patent/IT1136630B/it active
-
1982
- 1982-05-19 US US06/379,778 patent/US4435604A/en not_active Expired - Fee Related
- 1982-05-21 DE DE8282104481T patent/DE3262857D1/de not_active Expired
- 1982-05-21 EP EP82104481A patent/EP0065774B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| EP0065774B1 (en) | 1985-04-03 |
| US4435604A (en) | 1984-03-06 |
| EP0065774A1 (en) | 1982-12-01 |
| DE3262857D1 (en) | 1985-05-09 |
| IT8121891A0 (it) | 1981-05-22 |
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