IT1071481B - Decolorazione con una resina scambiatrice cationica di una corrente di riciclo nella produzione di bisfenolo a - Google Patents
Decolorazione con una resina scambiatrice cationica di una corrente di riciclo nella produzione di bisfenolo aInfo
- Publication number
- IT1071481B IT1071481B IT2751276A IT2751276A IT1071481B IT 1071481 B IT1071481 B IT 1071481B IT 2751276 A IT2751276 A IT 2751276A IT 2751276 A IT2751276 A IT 2751276A IT 1071481 B IT1071481 B IT 1071481B
- Authority
- IT
- Italy
- Prior art keywords
- decoloration
- bisphenol
- production
- cationic exchanger
- recycling current
- 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 |
---|---|
IT1071481B true IT1071481B (it) | 1985-04-10 |
Family
ID=27087657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2751276A IT1071481B (it) | 1975-09-23 | 1976-09-22 | Decolorazione con una resina scambiatrice cationica di una corrente di riciclo nella produzione di bisfenolo a |
Country Status (6)
Families Citing this family (12)
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 |
EP0001863B1 (en) * | 1977-11-09 | 1981-07-15 | Shell Internationale Researchmaatschappij B.V. | Preparation of bisphenols |
JPS6079907U (ja) * | 1983-11-04 | 1985-06-03 | 株式会社クボタ | 乗用田植機の線引マ−カ構造 |
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 (ja) * | 1988-02-19 | 1989-08-24 | Mitsui Toatsu Chem Inc | ビスフェノールaの製造方法 |
US4954661A (en) * | 1988-03-11 | 1990-09-04 | Mitsui Toatsu Chemicals, Inc. | Process for preparing high-purity bisphenol A |
JPH0365408U (US20110009641A1-20110113-C00256.png) * | 1989-10-30 | 1991-06-26 | ||
US20030028055A1 (en) * | 1999-12-03 | 2003-02-06 | Hideaki Nakamura | High quality bisphenol a and preparation process thereof |
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 |
CN104379546B (zh) * | 2012-06-28 | 2018-10-09 | 出光兴产株式会社 | 双酚a的制备方法 |
CN110072910B (zh) | 2017-01-17 | 2021-08-13 | 沙特基础工业全球技术有限公司 | 减少颜色的聚碳酸酯组合物及其制备方法和制品 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2222607A1 (de) * | 1972-05-09 | 1973-11-22 | Rheinstahl Ag | Ringwalzwerk |
-
1976
- 1976-09-22 DE DE19762642596 patent/DE2642596A1/de not_active Ceased
- 1976-09-22 GB GB3918676A patent/GB1565667A/en not_active Expired
- 1976-09-22 NL NL7610522A patent/NL7610522A/xx not_active Application Discontinuation
- 1976-09-22 IT IT2751276A patent/IT1071481B/it active
- 1976-09-22 FR FR7628514A patent/FR2325627A1/fr not_active Withdrawn
- 1976-09-22 JP JP11316276A patent/JPS5242861A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5242861A (en) | 1977-04-04 |
GB1565667A (en) | 1980-04-23 |
DE2642596A1 (de) | 1977-04-07 |
JPS5534779B2 (US20110009641A1-20110113-C00256.png) | 1980-09-09 |
NL7610522A (nl) | 1977-03-25 |
FR2325627A1 (fr) | 1977-04-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19930929 |