NL7410872A - Werkwijze voor het zuiveren van in polyhydroxy- verbindingen aanwezige ruwe bishydroxyarylver- bindingen. - Google Patents
Werkwijze voor het zuiveren van in polyhydroxy- verbindingen aanwezige ruwe bishydroxyarylver- bindingen.Info
- Publication number
- NL7410872A NL7410872A NL7410872A NL7410872A NL7410872A NL 7410872 A NL7410872 A NL 7410872A NL 7410872 A NL7410872 A NL 7410872A NL 7410872 A NL7410872 A NL 7410872A NL 7410872 A NL7410872 A NL 7410872A
- Authority
- NL
- Netherlands
- Prior art keywords
- compounds
- crude
- purification
- bishydroxyaryl
- polyhydroxy
- Prior art date
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
- C07C37/685—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
- C07C37/72—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by liquid-liquid 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
- C07C37/74—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7410872A NL7410872A (nl) | 1974-08-14 | 1974-08-14 | Werkwijze voor het zuiveren van in polyhydroxy- verbindingen aanwezige ruwe bishydroxyarylver- bindingen. |
US05/575,277 US3972950A (en) | 1974-08-14 | 1975-05-07 | Process for the purification of bisphenol A |
GB33539/75A GB1517958A (en) | 1974-08-14 | 1975-08-12 | Purification of bishydroxyl compounds |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7410872A NL7410872A (nl) | 1974-08-14 | 1974-08-14 | Werkwijze voor het zuiveren van in polyhydroxy- verbindingen aanwezige ruwe bishydroxyarylver- bindingen. |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7410872A true NL7410872A (nl) | 1976-02-17 |
Family
ID=19821913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7410872A NL7410872A (nl) | 1974-08-14 | 1974-08-14 | Werkwijze voor het zuiveren van in polyhydroxy- verbindingen aanwezige ruwe bishydroxyarylver- bindingen. |
Country Status (3)
Country | Link |
---|---|
US (1) | US3972950A (nl) |
GB (1) | GB1517958A (nl) |
NL (1) | NL7410872A (nl) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4192959A (en) * | 1977-06-28 | 1980-03-11 | Haarmann & Reimer | Process for the preparation of pure 2-hydroxybenzyl alcohol, pure 4-hydroxybenzyl alcohol or a mixture of both hydroxy-benzyl alcohols |
US4420643A (en) * | 1982-09-30 | 1983-12-13 | American Cyanamid Company | Extraction of phenols from aqueous solutions |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4087469A (en) * | 1975-12-16 | 1978-05-02 | Yakov Abramovich Gurvich | Method of producing 2,2 '-methylenebis(4,6-dialkylphenols) |
US4188496A (en) * | 1977-12-23 | 1980-02-12 | General Electric Company | Process for preparing 2,2-bis(4-hydroxy-phenyl) propane from distillation by-products thereof |
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 |
US4192954A (en) * | 1977-12-23 | 1980-03-11 | General Electric Company | Process for preparing 2,2-bis(4-hydroxy-phenyl) propane from distillation by-products 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 |
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 |
US4414422A (en) * | 1982-05-10 | 1983-11-08 | The Dow Chemical Company | Purification of 4,4-dihydroxybiphenyl |
US4461915A (en) * | 1982-11-15 | 1984-07-24 | General Electric Company | Purification of bisphenol-A |
US4492807A (en) * | 1983-04-22 | 1985-01-08 | General Electric Company | Method for purification of bisphenol A |
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 |
US5146006A (en) * | 1991-06-28 | 1992-09-08 | Shell Oil Company | Process for preparing tetraphenoic compounds |
DE19961521A1 (de) * | 1999-12-20 | 2001-06-21 | Bayer Ag | Bisphenol-Phenol-Addukte |
US6716729B2 (en) | 1999-12-22 | 2004-04-06 | Borden Chemical, Inc. | Stable bisphenolic compositions |
US6465697B1 (en) | 2001-04-13 | 2002-10-15 | Resolution Performance Products Llc | Catalyst promotor for the manufacture of polyphenols |
US6960697B2 (en) * | 2002-03-13 | 2005-11-01 | Mitsubishi Chemical Corporation | System and method of producing bisphenol-A (BPA) |
US20050075520A1 (en) * | 2002-03-13 | 2005-04-07 | O'young Drow Lionel | System and method of producing bisphenol-A (BPA) using two stage crystallization |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2959622A (en) * | 1960-11-08 | Purification of crude jj-p-bis- | ||
GB946322A (en) * | 1960-02-12 | 1964-01-08 | Konink Zwavelzuurfabrieken V H | Process for purifying 4,4 dihydroxydiphenylpropane 2,2 |
US3207795A (en) * | 1962-03-02 | 1965-09-21 | Hooker Chemical Corp | Production and purification of diphenylolalkanes |
NL301690A (nl) * | 1962-12-31 | |||
US3326986A (en) * | 1965-01-22 | 1967-06-20 | Dow Chemical Co | Process for purifying 4, 4'-isopropylidenediphenol |
US3493622A (en) * | 1967-01-06 | 1970-02-03 | Gulf Oil Canada Ltd | Purification of diphenylol propane |
-
1974
- 1974-08-14 NL NL7410872A patent/NL7410872A/nl not_active Application Discontinuation
-
1975
- 1975-05-07 US US05/575,277 patent/US3972950A/en not_active Expired - Lifetime
- 1975-08-12 GB GB33539/75A patent/GB1517958A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4192959A (en) * | 1977-06-28 | 1980-03-11 | Haarmann & Reimer | Process for the preparation of pure 2-hydroxybenzyl alcohol, pure 4-hydroxybenzyl alcohol or a mixture of both hydroxy-benzyl alcohols |
US4420643A (en) * | 1982-09-30 | 1983-12-13 | American Cyanamid Company | Extraction of phenols from aqueous solutions |
Also Published As
Publication number | Publication date |
---|---|
US3972950A (en) | 1976-08-03 |
GB1517958A (en) | 1978-07-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BA | A request for search or an international-type search has been filed | ||
BB | A search report has been drawn up | ||
BV | The patent application has lapsed |