DE3768607D1 - Verfahren zur kristallisation von bisphenol-a. - Google Patents

Verfahren zur kristallisation von bisphenol-a.

Info

Publication number
DE3768607D1
DE3768607D1 DE8787115112T DE3768607T DE3768607D1 DE 3768607 D1 DE3768607 D1 DE 3768607D1 DE 8787115112 T DE8787115112 T DE 8787115112T DE 3768607 T DE3768607 T DE 3768607T DE 3768607 D1 DE3768607 D1 DE 3768607D1
Authority
DE
Germany
Prior art keywords
crystallizing bisphenol
crystallizing
bisphenol
Prior art date
Legal status (The legal status 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 status listed.)
Revoked
Application number
DE8787115112T
Other languages
English (en)
Inventor
De Matos Isabel Maria Gomes
Gaylord Michael Kissinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
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.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25443787&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3768607(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of DE3768607D1 publication Critical patent/DE3768607D1/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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
    • C07C37/84—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by crystallisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DE8787115112T 1986-10-20 1987-10-16 Verfahren zur kristallisation von bisphenol-a. Revoked DE3768607D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/920,463 US4740635A (en) 1986-10-20 1986-10-20 Process for crystallizing bisphenol-A

Publications (1)

Publication Number Publication Date
DE3768607D1 true DE3768607D1 (de) 1991-04-18

Family

ID=25443787

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787115112T Revoked DE3768607D1 (de) 1986-10-20 1987-10-16 Verfahren zur kristallisation von bisphenol-a.

Country Status (4)

Country Link
US (1) US4740635A (de)
EP (1) EP0265792B1 (de)
JP (1) JPS63159335A (de)
DE (1) DE3768607D1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4861919A (en) * 1988-02-29 1989-08-29 The Dow Chemical Company Countercurrent multi-stage water crystallization of aromatic compounds
US4927973A (en) * 1988-12-16 1990-05-22 Shell Oil Company Process for continuous purification of bisphenols
DE4105428A1 (de) * 1991-02-21 1992-08-27 Bayer Ag Verfahren zur reinigung von bisphenolen
EP0643032B1 (de) * 1991-07-16 1997-02-05 Chiyoda Corporation Kondensationsverfahren zur Rückgewinnung von Bisphenol A und Phenol
GB9204490D0 (en) * 1992-03-02 1992-04-15 Dow Deutschland Inc Process for preparing bisphenol a
GB9405015D0 (en) * 1994-03-15 1994-04-27 Dow Deutschland Inc Process for purifying a bisphenol
US5434316A (en) * 1994-07-28 1995-07-18 General Electric Company Purification of bisphenol-A
US5773633A (en) * 1995-08-01 1998-06-30 General Electric Company Process for crystallizing chroman-I from an impure mixture
US5959158A (en) * 1996-04-12 1999-09-28 Gammill; Ben Method and system for bisphenol a production using water
US5874644A (en) * 1996-04-12 1999-02-23 Gammill; Ben Method and system for bisphenol a production using controlled turbulence
US6703530B2 (en) 2002-02-28 2004-03-09 General Electric Company Chemical reactor system and process
US20050075520A1 (en) * 2002-03-13 2005-04-07 O'young Drow Lionel System and method of producing bisphenol-A (BPA) using two stage crystallization
US6960697B2 (en) * 2002-03-13 2005-11-01 Mitsubishi Chemical Corporation System and method of producing bisphenol-A (BPA)
DE60324457D1 (de) * 2002-11-25 2008-12-11 Dow Global Technologies Inc Verfahren zur reinigung von bisphenol-a
JP5330904B2 (ja) 2009-06-12 2013-10-30 住友化学株式会社 粒状物質の製造方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH458284A (de) * 1965-10-01 1968-06-30 Inventa Ag Verfahren zur Reinigung von organischen Substanzen
US4209646A (en) * 1974-10-31 1980-06-24 Rhone-Poulenc Industries Process for crystallizing an adduct of 2,2-di(4-hydroxyphenyl) propane and phenol
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
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
US4533764A (en) * 1984-03-29 1985-08-06 The Dow Chemical Company Purification of bisphenols by removing residual solvent
US4529823A (en) * 1984-04-02 1985-07-16 General Electric Company Purification of bisphenol-A
US4638102A (en) * 1985-12-30 1987-01-20 The Dow Chemical Company Recrystallization of bisphenol A by azeotropically drying the solvent

Also Published As

Publication number Publication date
EP0265792B1 (de) 1991-03-13
JPS63159335A (ja) 1988-07-02
EP0265792A1 (de) 1988-05-04
US4740635A (en) 1988-04-26

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation