NL7610522A - Werkwijze ter verwijdering van kleurstoffen uit 4,4'-bisfenol-a-recirculaatstromen. - Google Patents

Werkwijze ter verwijdering van kleurstoffen uit 4,4'-bisfenol-a-recirculaatstromen.

Info

Publication number: NL7610522A
Authority: NL; Netherlands
Prior art keywords: recirculate; bisphenol; streams; dye; removal
Prior art date: 1975-09-23

Application number

NL7610522A

Other languages

English (en)

Original Assignee

Union Carbide Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1975-09-23

Filing date

1976-09-22

Publication date

1977-03-25

1976-09-22 Application filed by Union Carbide Corp filed Critical Union Carbide Corp

1977-03-25 Publication of NL7610522A publication Critical patent/NL7610522A/nl

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)

NL7610522A 1975-09-23 1976-09-22 Werkwijze ter verwijdering van kleurstoffen uit 4,4'-bisfenol-a-recirculaatstromen. NL7610522A (nl)

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 (nl)	1977-03-25

Family

ID=27087657

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL7610522A NL7610522A (nl)	1975-09-23	1976-09-22	Werkwijze ter verwijdering van kleurstoffen uit 4,4'-bisfenol-a-recirculaatstromen.

Country Status (6)

Country	Link
JP (1)	JPS5242861A (nl)
DE (1)	DE2642596A1 (nl)
FR (1)	FR2325627A1 (nl)
GB (1)	GB1565667A (nl)
IT (1)	IT1071481B (nl)
NL (1)	NL7610522A (nl)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
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 (nl) *	1989-10-30	1991-06-26
WO2001040156A1 (fr) *	1999-12-03	2001-06-07	Mitsui Chemicals, Inc.	Bisphenol a haute qualite et procede de production correspondant
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
JP6055472B2 (ja) *	2012-06-28	2016-12-27	出光興産株式会社	ビスフェノールａの製造方法
WO2018134734A1 (en)	2017-01-17	2018-07-26	Sabic Global Technologies B.V.	Reduced color polycarbonate compositions, methods of manufacture, and articles thereof
WO2020115707A1 (en)	2018-12-05	2020-06-11	Sabic Global Technologies B.V.	Polycarbonate compositions with improved oxidation stability and methods of manufacturing the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2222607A1 (de) *	1972-05-09	1973-11-22	Rheinstahl Ag	Ringwalzwerk

1976
- 1976-09-22 NL NL7610522A patent/NL7610522A/nl not_active Application Discontinuation
- 1976-09-22 GB GB3918676A patent/GB1565667A/en not_active Expired
- 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
- 1976-09-22 DE DE19762642596 patent/DE2642596A1/de not_active Ceased

Also Published As

Publication number	Publication date
DE2642596A1 (de)	1977-04-07
FR2325627A1 (fr)	1977-04-22
JPS5242861A (en)	1977-04-04
GB1565667A (en)	1980-04-23
IT1071481B (it)	1985-04-10
JPS5534779B2 (nl)	1980-09-09

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Legal Events

Date	Code	Title
1980-03-25	BB	A search report has been drawn up
1980-08-25	BC	A request for examination has been filed
1983-05-02	BV	The patent application has lapsed