NL7610522A - PROCESS FOR THE REMOVAL OF DYE FROM 4,4'-BISPHENOL-A RECIRCULATE STREAMS. - Google Patents
PROCESS FOR THE REMOVAL OF DYE FROM 4,4'-BISPHENOL-A RECIRCULATE STREAMS.Info
- Publication number
- NL7610522A NL7610522A NL7610522A NL7610522A NL7610522A NL 7610522 A NL7610522 A NL 7610522A NL 7610522 A NL7610522 A NL 7610522A NL 7610522 A NL7610522 A NL 7610522A NL 7610522 A NL7610522 A NL 7610522A
- Authority
- NL
- Netherlands
- Prior art keywords
- recirculate
- bisphenol
- streams
- dye
- removal
- 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
- C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
- C07C37/82—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by solid-liquid treatment; by chemisorption
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US61602675A | 1975-09-23 | 1975-09-23 | |
US69672676A | 1976-06-16 | 1976-06-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7610522A true NL7610522A (en) | 1977-03-25 |
Family
ID=27087657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7610522A NL7610522A (en) | 1975-09-23 | 1976-09-22 | PROCESS FOR THE REMOVAL OF DYE FROM 4,4'-BISPHENOL-A RECIRCULATE STREAMS. |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5242861A (en) |
DE (1) | DE2642596A1 (en) |
FR (1) | FR2325627A1 (en) |
GB (1) | GB1565667A (en) |
IT (1) | IT1071481B (en) |
NL (1) | NL7610522A (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4051079A (en) * | 1976-06-22 | 1977-09-27 | Union Carbide Corporation | Regeneration of acidic cation exchange resin using acidified phenol-water mixture |
DE2860850D1 (en) * | 1977-11-09 | 1981-10-22 | Shell Int Research | Preparation of bisphenols |
JPS6079907U (en) * | 1983-11-04 | 1985-06-03 | 株式会社クボタ | Line drawing marker structure of riding rice transplanter |
US4636393A (en) * | 1984-11-28 | 1987-01-13 | Campbell Soup Company | Method of processing meat for inclusion in high acid type foods and product thereof |
JPH01211544A (en) * | 1988-02-19 | 1989-08-24 | Mitsui Toatsu Chem Inc | Production of bisphenol a |
US4954661A (en) * | 1988-03-11 | 1990-09-04 | Mitsui Toatsu Chemicals, Inc. | Process for preparing high-purity bisphenol A |
JPH0365408U (en) * | 1989-10-30 | 1991-06-26 | ||
EP1149816A4 (en) * | 1999-12-03 | 2004-04-07 | Mitsui Chemicals Inc | High-quality bisphenol a and process for producing the same |
US6680270B2 (en) | 2001-04-24 | 2004-01-20 | General Electric Company | Regeneration of catalysts used in the manufacture of bisphenols |
US7696388B2 (en) * | 2008-07-09 | 2010-04-13 | Sabic Innovative Plastics Ip B.V. | Process for producing bisphenol-A |
WO2014002787A1 (en) * | 2012-06-28 | 2014-01-03 | 出光興産株式会社 | Bisphenol-a production method |
WO2018134734A1 (en) | 2017-01-17 | 2018-07-26 | Sabic Global Technologies B.V. | Reduced color polycarbonate compositions, methods of manufacture, and articles thereof |
US12084542B2 (en) | 2018-12-05 | 2024-09-10 | Sabic Global Technologies B.V. | Polycarbonate compositions with improved oxidation stability and methods of manufacturing the same |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2222607A1 (en) * | 1972-05-09 | 1973-11-22 | Rheinstahl Ag | RING ROLLING MILL |
-
1976
- 1976-09-22 DE DE19762642596 patent/DE2642596A1/en not_active Ceased
- 1976-09-22 GB GB3918676A patent/GB1565667A/en not_active Expired
- 1976-09-22 NL NL7610522A patent/NL7610522A/en not_active Application Discontinuation
- 1976-09-22 JP JP11316276A patent/JPS5242861A/en active Granted
- 1976-09-22 FR FR7628514A patent/FR2325627A1/en not_active Withdrawn
- 1976-09-22 IT IT2751276A patent/IT1071481B/en active
Also Published As
Publication number | Publication date |
---|---|
FR2325627A1 (en) | 1977-04-22 |
JPS5242861A (en) | 1977-04-04 |
DE2642596A1 (en) | 1977-04-07 |
IT1071481B (en) | 1985-04-10 |
JPS5534779B2 (en) | 1980-09-09 |
GB1565667A (en) | 1980-04-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | A search report has been drawn up | ||
BC | A request for examination has been filed | ||
BV | The patent application has lapsed |