NL7317275A - - Google Patents
Info
- Publication number
- NL7317275A NL7317275A NL7317275A NL7317275A NL7317275A NL 7317275 A NL7317275 A NL 7317275A NL 7317275 A NL7317275 A NL 7317275A NL 7317275 A NL7317275 A NL 7317275A NL 7317275 A NL7317275 A NL 7317275A
- Authority
- NL
- Netherlands
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
- C07C37/20—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
- C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
- C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
- C07C37/84—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by crystallisation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
- C07C37/86—Purification; separation; Use of additives, e.g. for stabilisation by treatment giving rise to a chemical modification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT33446/72A IT974747B (it) | 1972-12-22 | 1972-12-22 | Procedimento perfezionato per la produzione di 2 2 4 4 dii drossidifenilpropano |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7317275A true NL7317275A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-06-25 |
Family
ID=11237451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7317275A NL7317275A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-12-22 | 1973-12-17 |
Country Status (10)
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4180683A (en) * | 1977-12-23 | 1979-12-25 | General Electric Company | Process for recovering 2,2-bis(4-hydroxyphenyl)propane from distillation residues from the preparation thereof |
| US4192955A (en) * | 1977-12-28 | 1980-03-11 | General Electric Company | Process for the recovery of 2,2-bis(4-hydroxyphenyl) propane |
| US4300000A (en) * | 1977-12-28 | 1981-11-10 | General Electric Company | Process for the recovery of 2,2-bis(4-hydroxyphenyl)propane |
| US4156098A (en) * | 1978-05-30 | 1979-05-22 | General Electric Company | Purification of bisphenol-A |
| US4212997A (en) * | 1978-06-27 | 1980-07-15 | General Electric Company | Process for recovering 2,2-bis(4-hydroxyphenyl)propane from an adduct of 2,2-bis(4-hydroxyphenyl)propane and phenol |
| DE2928464A1 (de) * | 1979-07-13 | 1981-01-29 | Bayer Ag | Verwendung von speziellen rohbisphenolen zur herstellung von polycarbonaten |
| US4294994A (en) * | 1980-04-21 | 1981-10-13 | General Electric Company | Purification of bisphenol-A |
| JPH068260B2 (ja) * | 1988-01-08 | 1994-02-02 | 三井東圧化学株式会社 | ビスフェノールａの製造方法 |
| JPH029832A (ja) * | 1988-02-19 | 1990-01-12 | Mitsui Toatsu Chem Inc | 固形物の洗浄回収方法 |
| US4931146A (en) * | 1988-04-05 | 1990-06-05 | Mitsui Toatsu Chemicals, Inc. | Process for obtaining high-purity bisphenol A |
| US4927978A (en) * | 1988-12-16 | 1990-05-22 | Shell Oil Company | Method of purifying bisphenols |
| DE4105428A1 (de) * | 1991-02-21 | 1992-08-27 | Bayer Ag | Verfahren zur reinigung von bisphenolen |
| EP0643032B1 (en) * | 1991-07-16 | 1997-02-05 | Chiyoda Corporation | Condensation process for recovery of bisphenol A and phenol |
| EP0526964B1 (en) * | 1991-08-05 | 1996-10-23 | Chiyoda Corporation | Process for the production of bisphenol A |
| JP2863386B2 (ja) * | 1992-04-20 | 1999-03-03 | 新日鐵化学株式会社 | 熱安定性の優れたビスフェノールａの製造方法 |
| DE19961566A1 (de) * | 1999-12-20 | 2001-06-21 | Bayer Ag | Bis(4-hydroxyaryl)alkane |
| US20050075520A1 (en) * | 2002-03-13 | 2005-04-07 | O'young Drow Lionel | System and method of producing bisphenol-A (BPA) using two stage crystallization |
| WO2007044139A1 (en) * | 2005-10-07 | 2007-04-19 | Badger Licensing Llc | Bisphenol-a plant yield enhancement |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3162690A (en) * | 1960-12-28 | 1964-12-22 | Teerverwertung Gmbh | Method of purifying crude p, p'-isopropylidene diphenol |
| US2623908A (en) * | 1951-11-23 | 1952-12-30 | Dow Chemical Co | Process for making 4, 4'-isopropylidenediphenol |
| DE1027205B (de) * | 1955-12-10 | 1958-04-03 | Bayer Ag | Verfahren zur Herstellung von reinen 4,4'-Dioxydiphenylalkanen |
| DE1153028B (de) * | 1959-12-29 | 1963-08-22 | Teerverwertung Gmbh | Verfahren zur Herstellung von reinem, farblosem, im Vakuum unzersetzt destillierbarem Bisphenol A |
| DE1168445B (de) * | 1960-05-27 | 1964-04-23 | Bayer Ag | Verfahren zur Herstellung reiner 4, 4-Dihydroxydiphenylalkane bzw. -cycloalkane |
| US3169996A (en) * | 1961-03-14 | 1965-02-16 | Allied Chem | Recovery of p', p'-isopropylidenediphenol |
| US3326986A (en) * | 1965-01-22 | 1967-06-20 | Dow Chemical Co | Process for purifying 4, 4'-isopropylidenediphenol |
| US3627846A (en) * | 1968-10-16 | 1971-12-14 | Bayer Ag | Process for obtaining particularly pure 2,2-bis-(phenylol)-propane |
| JPS5613700B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1972-03-23 | 1981-03-30 |
-
1972
- 1972-12-22 IT IT33446/72A patent/IT974747B/it active
-
1973
- 1973-12-17 NL NL7317275A patent/NL7317275A/xx not_active Application Discontinuation
- 1973-12-18 GB GB5865573A patent/GB1408690A/en not_active Expired
- 1973-12-19 CA CA188,510A patent/CA1014975A/en not_active Expired
- 1973-12-20 CH CH1794473A patent/CH589580A5/xx not_active IP Right Cessation
- 1973-12-20 YU YU3317/73A patent/YU35566B/xx unknown
- 1973-12-21 JP JP744697A patent/JPS5242790B2/ja not_active Expired
- 1973-12-21 FR FR7345939A patent/FR2211436B1/fr not_active Expired
- 1973-12-21 DE DE2364164A patent/DE2364164C2/de not_active Expired
- 1973-12-26 US US05/428,576 patent/US3936507A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA1014975A (en) | 1977-08-02 |
| US3936507A (en) | 1976-02-03 |
| GB1408690A (en) | 1975-10-01 |
| JPS4994654A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-09-09 |
| YU331773A (en) | 1980-09-25 |
| CH589580A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1977-07-15 |
| FR2211436B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1977-09-09 |
| JPS5242790B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1977-10-26 |
| FR2211436A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-07-19 |
| YU35566B (en) | 1981-04-30 |
| IT974747B (it) | 1974-07-10 |
| DE2364164A1 (de) | 1974-07-11 |
| DE2364164C2 (de) | 1982-11-25 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BC | A request for examination has been filed | ||
| A85 | Still pending on 85-01-01 | ||
| BV | The patent application has lapsed |