LU43274A1 - - Google Patents
Info
- Publication number
- LU43274A1 LU43274A1 LU43274DA LU43274A1 LU 43274 A1 LU43274 A1 LU 43274A1 LU 43274D A LU43274D A LU 43274DA LU 43274 A1 LU43274 A1 LU 43274A1
- Authority
- LU
- Luxembourg
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
- C07C37/68—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
- C07C37/685—Processes comprising at least two steps in series
-
- 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
- C07C37/74—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by distillation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/14—The ring being saturated
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 |
|---|---|---|---|
| US176923A US3207795A (en) | 1962-03-02 | 1962-03-02 | Production and purification of diphenylolalkanes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU43274A1 true LU43274A1 (en:Method) | 1963-08-28 |
Family
ID=22646451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU43274D LU43274A1 (en:Method) | 1962-03-02 | 1963-02-28 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3207795A (en:Method) |
| BE (1) | BE628924A (en:Method) |
| CH (1) | CH428756A (en:Method) |
| GB (1) | GB1035233A (en:Method) |
| LU (1) | LU43274A1 (en:Method) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1076142A (en) * | 1964-02-05 | 1967-07-19 | Ici Ltd | Manufacture of bis-phenols |
| DE1296645B (de) * | 1965-12-24 | 1969-06-04 | Wolfen Filmfab Veb | Verfahren zur Gewinnung reiner 4, 4'-Dihydroxydiarylalkane |
| NL7410872A (nl) * | 1974-08-14 | 1976-02-17 | Shell Int Research | Werkwijze voor het zuiveren van in polyhydroxy- verbindingen aanwezige ruwe bishydroxyarylver- bindingen. |
| US4113974A (en) * | 1976-12-30 | 1978-09-12 | General Electric Company | Process for purifying impure diphenols |
| US4240968A (en) * | 1979-04-26 | 1980-12-23 | General Electric Company | Process for isolating and purifying diphenol by-products |
| US4354046A (en) * | 1981-05-26 | 1982-10-12 | The Dow Chemical Company | Process for obtaining high purity bisphenol A |
| US4638102A (en) * | 1985-12-30 | 1987-01-20 | The Dow Chemical Company | Recrystallization of bisphenol A by azeotropically drying the solvent |
| DE4105428A1 (de) * | 1991-02-21 | 1992-08-27 | Bayer Ag | Verfahren zur reinigung von bisphenolen |
| US5773633A (en) * | 1995-08-01 | 1998-06-30 | General Electric Company | Process for crystallizing chroman-I from an impure mixture |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2959622A (en) * | 1960-11-08 | Purification of crude jj-p-bis- | ||
| US2623908A (en) * | 1951-11-23 | 1952-12-30 | Dow Chemical Co | Process for making 4, 4'-isopropylidenediphenol |
| US3073868A (en) * | 1959-02-05 | 1963-01-15 | Hooker Chemical Corp | Production and purification of diphenylolalkanes |
-
1962
- 1962-03-02 US US176923A patent/US3207795A/en not_active Expired - Lifetime
-
1963
- 1963-02-14 GB GB6075/63A patent/GB1035233A/en not_active Expired
- 1963-02-26 BE BE628924A patent/BE628924A/fr unknown
- 1963-02-28 LU LU43274D patent/LU43274A1/xx unknown
- 1963-03-01 CH CH265663A patent/CH428756A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3207795A (en) | 1965-09-21 |
| CH428756A (fr) | 1967-01-31 |
| GB1035233A (en) | 1966-07-06 |
| BE628924A (fr) | 1963-08-26 |