FI913496A0 - Menetelmä karboksyylihappojen talteenottamiseksi niiden vesipitoisista liuoksista - Google Patents

Menetelmä karboksyylihappojen talteenottamiseksi niiden vesipitoisista liuoksista

Info

Publication number: FI913496A0
Authority: FI; Finland
Prior art keywords: carboxylic acids; aqueous solutions; recovering carboxylic; recovering; aqueous
Prior art date: 1990-07-23

Application number

FI913496A

Other languages

English (en)

Swedish (sv)

Other versions

FI97054B (fi

FI97054C (fi

FI913496A (fi

Inventor

Hans Kiefer

Werner Reutemann

Original Assignee

Basf Ag

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.)

1990-07-23

Filing date

1991-07-19

Publication date

1991-07-19

1991-07-19 Application filed by Basf Ag filed Critical Basf Ag

1991-07-19 Publication of FI913496A0 publication Critical patent/FI913496A0/fi

1992-01-24 Publication of FI913496A publication Critical patent/FI913496A/fi

1996-06-28 Publication of FI97054B publication Critical patent/FI97054B/fi

1996-10-10 Application granted granted Critical

1996-10-10 Publication of FI97054C publication Critical patent/FI97054C/fi

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Engineering & Computer Science (AREA)
Oil, Petroleum & Natural Gas (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

FI913496A 1990-07-23 1991-07-19 Menetelmä karboksyylihappojen talteenottamiseksi niiden vesipitoisista liuoksista FI97054C (fi)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE4023353A DE4023353A1 (de)	1990-07-23	1990-07-23	Verfahren zur gewinnung von carbonsaeuren aus ihren waessrigen loesungen
DE4023353		1990-07-23

Publications (4)

Publication Number	Publication Date
FI913496A0 true FI913496A0 (fi)	1991-07-19
FI913496A FI913496A (fi)	1992-01-24
FI97054B FI97054B (fi)	1996-06-28
FI97054C FI97054C (fi)	1996-10-10

Family

ID=6410837

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI913496A FI97054C (fi)	1990-07-23	1991-07-19	Menetelmä karboksyylihappojen talteenottamiseksi niiden vesipitoisista liuoksista

Country Status (6)

Country	Link
US (1)	US5189216A (fi)
EP (1)	EP0468303B1 (fi)
JP (1)	JP2960577B2 (fi)
DE (2)	DE4023353A1 (fi)
ES (1)	ES2060258T3 (fi)
FI (1)	FI97054C (fi)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4211141A1 (de) *	1992-04-03	1993-10-07	Basf Ag	Verfahren zur Herstellung von Ameisensäure durch thermische Spaltung von quartären Ammoniumformiaten
EP0597151A1 (en) *	1992-11-10	1994-05-18	Universiteit Twente	Method for preparing formic acid
US5728872A (en) *	1994-06-27	1998-03-17	Lutz Riemenschneider	Stabilized acrylic acid compositions
DE19747789A1 (de) *	1997-10-29	1999-05-06	Basf Ag	Extraktionsmittelsysteme aus Amiden und Trialkylaminen zur Extraktion von Carbonsäuren
EP2067749A1 (en) *	2007-11-29	2009-06-10	Total Petrochemicals France	Process for purification of an aqueous phase containing polyaromatics
DE102008053315A1 (de)	2008-10-27	2010-04-29	Kiefer, Hans, Dr.	Verbessertes Verfahren zur Herstellung von Tetrahydrofuran (THF)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2568095A (en) *	1949-04-29	1951-09-18	Standard Oil Co	Recovery of organic acids with an amine solvent
DE2545658C2 (de) *	1975-10-11	1985-12-19	Basf Ag, 6700 Ludwigshafen	Verfahren zur Gewinnung von Carbonsäuren aus ihren wäßrigen Lösungen
US4217460A (en) *	1975-10-11	1980-08-12	Basf Aktiengesellschaft	Isolation of formic acid from its aqueous solutions
NL8103517A (nl) *	1981-07-24	1983-02-16	Badger Bv	Werkwijze voor het scheiden van carbonzuren van mengsels met niet-zuren door een absorptie-stripbehandeling.
DE3319651A1 (de) *	1983-05-31	1984-12-06	Basf Ag, 6700 Ludwigshafen	Verfahren zur destillativen gewinnung von ameisensaeure
DE3428319A1 (de) *	1984-08-01	1986-02-13	Hüls AG, 4370 Marl	Verfahren zur gewinnung wasserfreier bzw. weitgehendwasserfreier ameisensaeure

1990
- 1990-07-23 DE DE4023353A patent/DE4023353A1/de not_active Withdrawn
1991
- 1991-07-12 ES ES91111603T patent/ES2060258T3/es not_active Expired - Lifetime
- 1991-07-12 DE DE59103093T patent/DE59103093D1/de not_active Expired - Lifetime
- 1991-07-12 EP EP91111603A patent/EP0468303B1/de not_active Expired - Lifetime
- 1991-07-16 US US07/730,768 patent/US5189216A/en not_active Expired - Lifetime
- 1991-07-18 JP JP3177921A patent/JP2960577B2/ja not_active Expired - Lifetime
- 1991-07-19 FI FI913496A patent/FI97054C/fi not_active IP Right Cessation

Also Published As

Publication number	Publication date
US5189216A (en)	1993-02-23
FI97054B (fi)	1996-06-28
EP0468303B1 (de)	1994-09-28
JP2960577B2 (ja)	1999-10-06
ES2060258T3 (es)	1994-11-16
EP0468303A1 (de)	1992-01-29
DE59103093D1 (de)	1994-11-03
FI97054C (fi)	1996-10-10
JPH04234348A (ja)	1992-08-24
DE4023353A1 (de)	1992-01-30
FI913496A (fi)	1992-01-24

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Legal Events

Date	Code	Title	Description
1996-06-03	BB	Publication of examined application
2011-09-09	MA	Patent expired