BR8400904A - Processo para a preparacao de dihidroxibenzenos - Google Patents

Processo para a preparacao de dihidroxibenzenos

Info

Publication number: BR8400904A
Authority: BR; Brazil
Prior art keywords: catalyst; hydrogen peroxide; water; azeotrope; phenol
Prior art date: 1983-03-11

Application number

BR8400904A

Other languages

English (en)

Inventor

Karlheinz Drauz

Axel Kleemann

Original Assignee

Degussa

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.)

1983-03-11

Filing date

1984-02-27

Publication date

1984-10-16

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6193235&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR8400904(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1984-02-27 Application filed by Degussa filed Critical Degussa

1984-10-16 Publication of BR8400904A publication Critical patent/BR8400904A/pt

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
- C07C37/60—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by oxidation reactions introducing directly hydroxy groups on a =CH-group belonging to a six-membered aromatic ring with the aid of other oxidants than molecular oxygen or their mixtures with molecular oxygen
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/18—Preparation of ethers by reactions not forming ether-oxygen bonds
- C07C41/26—Preparation of ethers by reactions not forming ether-oxygen bonds by introduction of hydroxy or O-metal groups
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

BR8400904A 1983-03-11 1984-02-27 Processo para a preparacao de dihidroxibenzenos BR8400904A (pt)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE3308769A DE3308769C2 (de)	1983-03-11	1983-03-11	Verfahren zur Herstellung von Dihydroxybenzolen

Publications (1)

Publication Number	Publication Date
BR8400904A true BR8400904A (pt)	1984-10-16

Family

ID=6193235

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR8400904A BR8400904A (pt)	1983-03-11	1984-02-27	Processo para a preparacao de dihidroxibenzenos

Country Status (10)

Country	Link
US (1)	US4533766A (pt)
EP (1)	EP0122374B1 (pt)
JP (1)	JPS59170026A (pt)
AT (1)	ATE29874T1 (pt)
BR (1)	BR8400904A (pt)
CA (1)	CA1201449A (pt)
DE (2)	DE3308769C2 (pt)
ES (1)	ES529733A0 (pt)
FI (1)	FI840689A7 (pt)
IL (1)	IL71076A (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3308763C2 (de) *	1983-03-11	1985-01-24	Degussa Ag, 6000 Frankfurt	Verfahren zur Herstellung von Dihydroxybenzolen
DE3308737C2 (de) *	1983-03-11	1985-01-24	Degussa Ag, 6000 Frankfurt	Verfahren zur Herstellung von Brenzcatechin und Hydrochinon
DE3334854A1 (de) *	1983-09-27	1985-04-11	Degussa Ag, 6000 Frankfurt	Verfahren zur herstellung nichtwaessriger wasserstoffperoxidloesungen und deren verwendung
US4814521A (en) *	1985-06-07	1989-03-21	Kureha Kagaku Kogyo Kabushiki Kaisha	Process for producing 2,6-dihydroxynaphthalene and 2,6-diacetoxynaphthalene
DE3602180A1 (de) *	1986-01-25	1987-07-30	Degussa	Verfahren zur herstellung von brenzkatechin und hydrochinon
DE3607924C1 (de) *	1986-03-11	1987-08-20	Degussa	Verfahren zur Herstellung von Trihydroxybenzolen durch Hydroxylierung von Resorcin
DE3632075A1 (de) *	1986-09-20	1988-03-24	Degussa	Verfahren zur herstellung von trihydroxy- bzw. alkoxyhydroxybenzolen
DE3643206C1 (de) *	1986-12-18	1988-03-24	Degussa	Verfahren zur Herstellung von substituierten Dihydroxybenzolen
US5426244A (en) *	1991-12-20	1995-06-20	Mitsubishi Gas Chemical Company, Inc.	Method for preparing dihydric phenols
ES2099338T3 (es) *	1992-10-09	1997-05-16	Hoechst Ag	Oxidacion de hidroxi-benzaldehidos para la preparacion de compuestos de dihidroxi-benceno.
CN1085115C (zh) *	1998-03-10	2002-05-22	北京燕山石油化工公司研究院	苯酚羟基化用的复合氧化物催化剂及其制备方法
US20100212087A1 (en) *	2007-07-31	2010-08-26	Roger Leib	Integrated patient room
CN102219650A (zh) *	2011-04-27	2011-10-19	南京工业大学	一种室温水溶液中苯酚羟基化制备苯二酚的方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2900412A (en) *	1958-08-07	1959-08-18	California Research Corp	Oxidation process employing sulfur dioxide
FR1479354A (fr) *	1966-03-15	1967-05-05	Rhone Poulenc Sa	Procédé d'obtention de polyphénols
FR2201279B1 (pt) *	1972-09-28	1975-03-14	Rhone Poulenc Ind
DE2410742C3 (de) *	1974-03-06	1981-01-08	Bayer Ag, 5090 Leverkusen	Verfahren zur Herstellung von Brenzkatechin und Hydrochinon durch Kernhydroxylierung von Phenol
DE2410758C3 (de) *	1974-03-06	1981-01-08	Bayer Ag, 5090 Leverkusen	Verfahren zur Herstellung von mehrwertigen substituierten Phenolen bzw. Monoäthern mehrwertiger Phenole durch Kernhydroxylierung von Phenolen oder Phenoläthern
US4111967A (en) *	1974-11-09	1978-09-05	Bayer Aktiengesellschaft	Silicon containing catalysts
DE2658943C3 (de) *	1976-12-24	1982-02-18	Bayer Ag, 5090 Leverkusen	Verfahren zur Herstellung von Brenzkatechin und Hydrochinon
US4258219A (en) *	1978-10-27	1981-03-24	Mitsui Toatsu Chemicals, Inc.	Process for producing hydroquinone
DE3308737C2 (de) *	1983-03-11	1985-01-24	Degussa Ag, 6000 Frankfurt	Verfahren zur Herstellung von Brenzcatechin und Hydrochinon
DE3437624C1 (de) *	1984-10-13	1986-01-23	Degussa Ag, 6000 Frankfurt	Verfahren und Vorrichtung zur Bestimmung und Überwachung von Wasserstoffperoxid-Konzentrationen in Schwefelsäure-Wasserstoffperoxidgemischen

1983
- 1983-03-11 DE DE3308769A patent/DE3308769C2/de not_active Expired
1984
- 1984-02-06 AT AT84101171T patent/ATE29874T1/de not_active IP Right Cessation
- 1984-02-06 EP EP84101171A patent/EP0122374B1/de not_active Expired
- 1984-02-06 DE DE8484101171T patent/DE3466384D1/de not_active Expired
- 1984-02-15 ES ES529733A patent/ES529733A0/es active Granted
- 1984-02-20 FI FI840689A patent/FI840689A7/fi not_active Application Discontinuation
- 1984-02-27 BR BR8400904A patent/BR8400904A/pt unknown
- 1984-02-27 IL IL71076A patent/IL71076A/xx not_active IP Right Cessation
- 1984-03-08 US US06/587,654 patent/US4533766A/en not_active Expired - Fee Related
- 1984-03-09 CA CA000449200A patent/CA1201449A/en not_active Expired
- 1984-03-09 JP JP59044222A patent/JPS59170026A/ja active Pending

Also Published As

Publication number	Publication date
FI840689L (fi)	1984-09-12
DE3308769A1 (de)	1984-09-13
ES8500880A1 (es)	1984-11-01
IL71076A0 (en)	1984-05-31
US4533766A (en)	1985-08-06
CA1201449A (en)	1986-03-04
DE3466384D1 (en)	1987-10-29
FI840689A7 (fi)	1984-09-12
IL71076A (en)	1987-10-30
ATE29874T1 (de)	1987-10-15
FI840689A0 (fi)	1984-02-20
EP0122374B1 (de)	1987-09-23
DE3308769C2 (de)	1985-01-24
EP0122374A3 (en)	1986-01-02
JPS59170026A (ja)	1984-09-26
EP0122374A2 (de)	1984-10-24
ES529733A0 (es)	1984-11-01

Publication	Publication Date	Title
BR8400904A (pt)	1984-10-16	Processo para a preparacao de dihidroxibenzenos
BR8401034A (pt)	1984-10-16	Processo para a preparacao de pirocatecol e hidroquinona
BR8400948A (pt)	1984-10-16	Processo para a obtencao de dihidroxibenzenos
ES529730A0 (es)	1984-12-16	Procedimiento para preparar productos de hidroxilacion en el nucleo de los correspondientes fenoles o fenoleteres
BR9814850A (pt)	2000-10-03	Processo de fabricação de um composto orgânico em um meio lìquido contendo água
BR8703641A (pt)	1988-03-22	Processo de cloracao pelo cloro gasoso de compostos fenolicos
ES536241A0 (es)	1985-06-01	Procedimiento para preparar soluciones anhidras de peroxido de hidrogeno en fenol o derivados fenolicos
DK412882A (da)	1983-03-17	Fremgangsmaade til isolering af dihydroxybenzen-monoethere fra reaktionsblandinger
Asters	1960	Paper chromatographic determination of sewage- and chloro-phenols
DING et al.	1989	Performance evaluation of assistance on advanced schistosomiasis
BR8706028A (pt)	1988-04-05	Processo para a preparacao de tribromotetrametilbifenol e compostos relacionados
JPS53135943A (en)	1978-11-28	Preparation of 4-allylphenol
JPS55151530A (en)	1980-11-26	Preparation of 4-(4-hydroxyphenyl)-2-butanone