DE3443390C2 - - Google Patents

Info

Publication number: DE3443390C2
Authority: DE; Germany
Prior art keywords: caffeine; membrane; liquefied; container; separation
Prior art date: 1984-11-28
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.): Expired - Fee Related

Application number

DE3443390A

Other languages

German (de)

English (en)

Other versions

DE3443390A1 (de

Inventor

Manfred Dipl.-Chem. Dr. 8069 Wolnzach De Gehrig

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.)

Hopfenextraktion Hvg Barth Raiser & Co 8069 Wolnzach De

Original Assignee

Hopfenextraktion Hvg Barth Raiser & Co 8069 Wolnzach De

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.)

1984-11-28

Filing date

1984-11-28

Publication date

1990-10-18

1984-11-28 Application filed by Hopfenextraktion Hvg Barth Raiser & Co 8069 Wolnzach De filed Critical Hopfenextraktion Hvg Barth Raiser & Co 8069 Wolnzach De

1984-11-28 Priority to DE19843443390 priority Critical patent/DE3443390A1/de

1986-05-28 Publication of DE3443390A1 publication Critical patent/DE3443390A1/de

1990-10-18 Application granted granted Critical

1990-10-18 Publication of DE3443390C2 publication Critical patent/DE3443390C2/de

Status Granted legal-status Critical Current

Links

RYYVLZVUVIJVGH-UHFFFAOYSA-N caffeine Chemical compound CN1C(=O)N(C)C(=O)C2=C1N=CN2C RYYVLZVUVIJVGH-UHFFFAOYSA-N 0.000 claims description 108
LPHGQDQBBGAPDZ-UHFFFAOYSA-N Isocaffeine Natural products CN1C(=O)N(C)C(=O)C2=C1N(C)C=N2 LPHGQDQBBGAPDZ-UHFFFAOYSA-N 0.000 claims description 54
229960001948 caffeine Drugs 0.000 claims description 54
VJEONQKOZGKCAK-UHFFFAOYSA-N caffeine Natural products CN1C(=O)N(C)C(=O)C2=C1C=CN2C VJEONQKOZGKCAK-UHFFFAOYSA-N 0.000 claims description 54
239000012528 membrane Substances 0.000 claims description 22
238000000034 method Methods 0.000 claims description 18
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
238000000926 separation method Methods 0.000 claims description 8
239000003463 adsorbent Substances 0.000 claims description 6
229910002092 carbon dioxide Inorganic materials 0.000 claims description 5
239000001569 carbon dioxide Substances 0.000 claims description 5
230000008569 process Effects 0.000 claims description 4
238000001223 reverse osmosis Methods 0.000 claims description 4
239000004760 aramid Substances 0.000 claims description 3
229920003235 aromatic polyamide Polymers 0.000 claims description 3
238000011084 recovery Methods 0.000 claims description 3
239000000243 solution Substances 0.000 description 10
239000002904 solvent Substances 0.000 description 7
239000007789 gas Substances 0.000 description 6
238000002474 experimental method Methods 0.000 description 5
241000723377 Coffea Species 0.000 description 4
239000007864 aqueous solution Substances 0.000 description 4
239000000463 material Substances 0.000 description 4
239000003599 detergent Substances 0.000 description 3
230000007717 exclusion Effects 0.000 description 3
241001122767 Theaceae Species 0.000 description 2
238000010586 diagram Methods 0.000 description 2
235000013305 food Nutrition 0.000 description 2
238000004519 manufacturing process Methods 0.000 description 2
230000035699 permeability Effects 0.000 description 2
239000002002 slurry Substances 0.000 description 2
239000000126 substance Substances 0.000 description 2
241000196324 Embryophyta Species 0.000 description 1
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
239000004952 Polyamide Substances 0.000 description 1
125000003118 aryl group Chemical group 0.000 description 1
230000008901 benefit Effects 0.000 description 1
235000013361 beverage Nutrition 0.000 description 1
239000006227 byproduct Substances 0.000 description 1
150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
230000000052 comparative effect Effects 0.000 description 1
239000008139 complexing agent Substances 0.000 description 1
239000000470 constituent Substances 0.000 description 1
238000010924 continuous production Methods 0.000 description 1
239000012153 distilled water Substances 0.000 description 1
238000001704 evaporation Methods 0.000 description 1
230000008020 evaporation Effects 0.000 description 1
238000000605 extraction Methods 0.000 description 1
239000000706 filtrate Substances 0.000 description 1
238000001914 filtration Methods 0.000 description 1
230000036541 health Effects 0.000 description 1
229910052739 hydrogen Inorganic materials 0.000 description 1
239000001257 hydrogen Substances 0.000 description 1
239000002184 metal Substances 0.000 description 1
239000000203 mixture Substances 0.000 description 1
239000003921 oil Substances 0.000 description 1
239000003960 organic solvent Substances 0.000 description 1
229920002647 polyamide Polymers 0.000 description 1
239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 description 1
238000011085 pressure filtration Methods 0.000 description 1
238000010926 purge Methods 0.000 description 1
230000009467 reduction Effects 0.000 description 1
229920005989 resin Polymers 0.000 description 1
239000011347 resin Substances 0.000 description 1
230000000717 retained effect Effects 0.000 description 1
238000005201 scrubbing Methods 0.000 description 1
238000000638 solvent extraction Methods 0.000 description 1
230000007704 transition Effects 0.000 description 1
238000000108 ultra-filtration Methods 0.000 description 1
235000013311 vegetables Nutrition 0.000 description 1
239000002699 waste material Substances 0.000 description 1
239000010457 zeolite Substances 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D473/00—Heterocyclic compounds containing purine ring systems
- C07D473/02—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6
- C07D473/04—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms
- C07D473/06—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3
- C07D473/12—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3 with methyl radicals in positions 1, 3, and 7, e.g. caffeine
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F5/00—Coffee; Coffee substitutes; Preparations thereof
- A23F5/20—Reducing or removing alkaloid content; Preparations produced thereby; Extracts or infusions thereof
- A23F5/206—Reducing or removing alkaloid content; Preparations produced thereby; Extracts or infusions thereof by extraction of the beans with selective solvents other than water or aqueous bean extracts, including supercritical gases
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0203—Solvent extraction of solids with a supercritical fluid
- 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
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Food Science & Technology (AREA)
Polymers & Plastics (AREA)
Tea And Coffee (AREA)
Separation Using Semi-Permeable Membranes (AREA)

DE19843443390 1984-11-28 1984-11-28 Verfahren zur abtrennung von coffein aus verfluessigten oder ueberkritischen gasen Granted DE3443390A1 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
DE19843443390 DE3443390A1 (de)	1984-11-28	1984-11-28	Verfahren zur abtrennung von coffein aus verfluessigten oder ueberkritischen gasen

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19843443390 DE3443390A1 (de)	1984-11-28	1984-11-28	Verfahren zur abtrennung von coffein aus verfluessigten oder ueberkritischen gasen

Publications (2)

Publication Number	Publication Date
DE3443390A1 DE3443390A1 (de)	1986-05-28
DE3443390C2 true DE3443390C2 (fr)	1990-10-18

Family

ID=6251379

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE19843443390 Granted DE3443390A1 (de)	1984-11-28	1984-11-28	Verfahren zur abtrennung von coffein aus verfluessigten oder ueberkritischen gasen

Country Status (1)

Country	Link
DE (1)	DE3443390A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4400096A1 (de) *	1994-01-04	1995-07-06	Barth Raiser Hopfenextraktion	Verfahren zur Entcoffeinierung von schwarzem Tee

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3445502A1 (de) *	1983-12-13	1985-06-20	Cafe Toro Ltda., Bogota	Verfahren und einrichtung zur entcoffeinierung von gruenem kaffee
DE3713953A1 (de) *	1986-06-20	1987-12-23	Krupp Gmbh	Verfahren zur entcoffeinierung von rohkaffee
DE3744988C2 (en) *	1986-06-20	1993-06-03	Kohlensaeure-Werke Rud. Buse Gmbh & Co, 5462 Bad Hoenningen, De	Decaffeination of raw coffee beans
DE3632401A1 (de) *	1986-09-24	1988-04-07	Barth Raiser Hopfenextraktion	Verfahren zur extraktion unpolarer inhaltsstoffe aus hopfen
US4911941A (en) *	1988-08-05	1990-03-27	General Foods Corporation	Method for decaffeinating coffee with a supercritical fluid
DE4019559A1 (de) *	1989-10-13	1991-04-18	Mannesmann Ag	Verfahren zur isolierung eines reinen, weissen koffeins
DE4000474A1 (de) *	1990-01-10	1990-11-15	Ben Nasr Hedi Dr	Verfahren zur quasikontinuierlichen entcoffeinierung von rohkaffee
US5490884A (en) *	1994-09-09	1996-02-13	Tastemaker	Method and system for extracting a solute from a fluid using dense gas and a porous membrane
WO2006005537A1 (fr) *	2004-07-09	2006-01-19	Nateco2 Gmbh + Co. Kg	Procede pour detheiner du the

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4113886A (en) *	1977-09-28	1978-09-12	General Foods Corporation	Membrane decaffeination
CH640704A5 (fr) *	1979-08-15	1984-01-31	Nestle Sa	Procede de preparation d'un extrait concentre de cafe, the ou leurs succedanes.
DE3331906A1 (de) *	1983-09-03	1985-03-21	Kohlensäure-Werke Rud. Buse GmbH & Co, 5462 Bad Hönningen	Verfahren zur trennung von organische bestandteile enthaltenden stoffgemischen

1984
- 1984-11-28 DE DE19843443390 patent/DE3443390A1/de active Granted

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4400096A1 (de) *	1994-01-04	1995-07-06	Barth Raiser Hopfenextraktion	Verfahren zur Entcoffeinierung von schwarzem Tee

Also Published As

Publication number	Publication date
DE3443390A1 (de)	1986-05-28

Legal Events

Date	Code	Title
1986-05-28	OM8	Search report available as to paragraph 43 lit. 1 sentence 1 patent law
1988-06-30	8110	Request for examination paragraph 44
1990-10-18	D2	Grant after examination
1991-03-21	8363	Opposition against the patent
1995-06-08	8365	Fully valid after opposition proceedings
2001-01-11	8339	Ceased/non-payment of the annual fee

Publication	Publication Date	Title
DE3334736C2 (fr)	1991-09-12
DE2029960C3 (de)	1974-11-28	Verfahren zum Regenerieren von verbrauchter Aktivkohle
DE3781734T2 (de)	1993-04-01	Kombiniertes membran- und sorptionsverfahren fuer selektive ionenbeseitigung.
EP2893817B1 (fr)	2017-07-19	Dispositif et procédé de fabrication d'une boisson désalcoolisée
DE3443390C2 (fr)	1990-10-18
DE2544116A1 (de)	1976-04-08	Verfahren und vorrichtung zum regenerieren eines adsorbensstoffes
EP0250845B1 (fr)	1992-11-19	Procédé de décaféination de café vert
CH629653A5 (de)	1982-05-14	Verfahren zum entzug von coffein aus coffeinhaltigen naturstoffen.
DE2905078C2 (fr)	1989-02-16
EP0571744A1 (fr)	1993-12-01	Procédé et dispositif pour le traitement des eaux usées, en particulier dans les avions
EP0135743A1 (fr)	1985-04-03	Procédé de séparation de mélanges contenant des éléments organiques
DE3607665A1 (de)	1987-09-10	Verfahren zur aufarbeitung waessriger aminloesungen
DE3640333C3 (de)	1994-08-11	Verfahren und Vorrichtung zur Herstellung von aromatisiertem, entcoffeiniertem Tee
EP0159724A2 (fr)	1985-10-30	Procédé de préparation de thé décaféiné
EP0439710B1 (fr)	1994-06-08	Procédé de décaféination de café vert
EP0041723B1 (fr)	1985-09-18	Procédé d'élimination des substances amères de la levure de bière épuisée
EP0280935A2 (fr)	1988-09-07	Procédé d'extraction des substances organiques des solides
DE2323312C3 (de)	1981-01-08	Verfahren und Vorrichtung zum Aufbereiten von bei der Behandlung von Flüssigkeiten beladenem Absorbermaterial
DE4224690C2 (de)	1996-11-21	Verfahren zur Trennung von flüssigen Gemischen verschiedener Stoffe in ihre Komponenten
DE2634535B2 (de)	1980-11-27	Verfahren zur Enteoffeinierung von Rohkaffee
DE4137572C1 (en)	1992-08-20	Reducing alcohol content of alcoholic drinks, esp. wine - by sepn. of drink in reverse osmosis plant with water- and alcohol-permeable membrane
DE2539589C3 (de)	1980-07-03	Verfahren zum Regenerieren von Aktivkohle
DE1919663C3 (de)	1975-11-27	Verfahren zur Reinigung von mit öligen Substanzen verunreinigten, verdünnten wäßrigen Harnstofflösungen
AT401935B (de)	1996-12-27	Verfahren zur selektiven an- oder abreicherung flüchtiger bestandteile eines fluidgemisches
DE4338569C2 (de)	1996-10-31	Verfahren zur Abtrennung von gelösten Stoffen aus flüssigen Medien

DE3443390C2 - - Google Patents

Info

Links

Classifications

Landscapes

Priority Applications (1)

Applications Claiming Priority (1)

Publications (2)

Family

ID=6251379

Family Applications (1)

Country Status (1)

Cited By (1)

Families Citing this family (9)

Family Cites Families (3)

Cited By (1)

Also Published As

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Legal Events