EP1260573A1 - Verfahren zur Abtrennung von Coumafos aus Bienenwachs - Google Patents
Verfahren zur Abtrennung von Coumafos aus Bienenwachs Download PDFInfo
- Publication number
- EP1260573A1 EP1260573A1 EP02010146A EP02010146A EP1260573A1 EP 1260573 A1 EP1260573 A1 EP 1260573A1 EP 02010146 A EP02010146 A EP 02010146A EP 02010146 A EP02010146 A EP 02010146A EP 1260573 A1 EP1260573 A1 EP 1260573A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- activated carbon
- beeswax
- suspension
- filter
- coumafos
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B11/00—Recovery or refining of other fatty substances, e.g. lanolin or waxes
Definitions
- the invention relates to a process for the separation of Coumafos (O, O'-Diethyl-O "- (3-chloro-4-methyl-7-coumarinyl) thiophosphate) from beeswax by adsorption on activated carbon and subsequent pressure filtration.
- the mite Varroa jacobsoni causes the parasitosis known as varroasis Honeybee.
- the mite parasites the adult bee and its breeding stages. After a latency period of several years in which there are no clinical signs can be observed, the collapse of the People. Early diagnosis is essential for successful therapy of vitally important.
- For medical diagnosis and therapy of Varroatose was developed by Bayer AG in collaboration with the animal hygiene department Institute Freiburg Perizin® developed. W. Ritter, Animal Hygiene Institute Freiburg; "The varroasis of the honeybee, Apis mellifera, and its control with Perizin® ", Veterinary Medical News, Issue 1, p. 3; G. Elwert (2015)sund Publishing house Marburg-Lahn; 1986th
- the activated carbon prior to filtration brought into contact with the beeswax for at least 5 minutes.
- Suitable pressure filters that offer sufficiently large filter areas are, for example, the plate pressure filter or the candle filter. Both are closed, discontinuous clarification filtration devices with adjustable pressure difference and automatic cake cleaning. Due to the compact arrangement of the plate-shaped or candle-shaped filter elements inside the pressure filter, filter areas of up to 100 m 2 can be realized.
- Such pressure filters are described, for example, in Ullmann's Encyclopedia of Industrial Chemistry, Sixth Edition, WILEY-VCH, Electronic Release 2001; Filtration, 8. Filtration Equipment, 8.3 Candle Filters and 8.5 Disk Filters.
- the amount of activated carbon is preferably 20 to 50 g per liter of liquid Wax.
- the activated carbon used should have the highest possible adsorption capacity and have the best possible filtration properties. adsorption capacity and filtration properties of the activated carbon are determined during manufacture the type of activation or the wording set. As particularly suitable the activated carbon CA 1® from the manufacturer Norit has been proven.
- the contact time between activated carbon and beeswax is preferably 30 to 90 min.
- Example 2 The procedure was as in Example 1, but with a contact time of 15 minutes. By increasing the dwell time from 15 min to 60 min, a further one could Depletion from about 5 ppm to less than 1 ppm can be achieved. Immediate Filtration of the suspension after briefly distributing the powdered charcoal brings one Hardly measurable reduction in the Coumafos content of around 20 ppm in beeswax.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Fats And Perfumes (AREA)
- Medicinal Preparation (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Extraction Or Liquid Replacement (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Lubricants (AREA)
- Steroid Compounds (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
Description
Claims (6)
- Verfahren zur Abtrennung von Coumafos (O,O'-Diethyl-O"-(3-chlor-4-methyl-7-cumarinyl)-thiophosphat) aus Bienenwachs durch Adsorption an Aktivkohle und anschließender Druckfiltration durch:a) Schmelzen des Bienenwachses,b) Zugeben von pulverförmiger Aktivkohle in einer Menge von mindestens 5 g pro Liter flüssigen Wachses,c) Herstellen einer homogenen Suspension aus dem Gemisch,d) Verweilen der Suspension über eine bestimmte Kontaktzeit,e) Filtrieren der Suspension in einem Druckfilter bei einer Druckdifferenz am Filtermedium von mindestens 1 bar.
- Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass die Aktivkohle vor der Filtration mindestens 5 Minuten mit dem flüssigen Bienenwachs in Kontakt gebracht wird.
- Verfahren gemäß Anspruch 2, dadurch gekennzeichnet, dass die Kontaktzeit von Aktivkohle und Bienenwachs 30 bis 60 min beträgt.
- Verfahren gemäß einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Druckdifferenz am Filtermedium 4 bis 6 bar beträgt.
- Verfahren gemäß einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Menge an Aktivkohle 20 bis 50 g pro Liter flüssigen Wachses beträgt.
- Verfahren gemäß einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Suspension während der Kontaktzeit von Aktivkohle und Bienenwachs gerührt wird.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10125431 | 2001-05-25 | ||
| DE10125431A DE10125431A1 (de) | 2001-05-25 | 2001-05-25 | Verfahren zur Abtrennung von Coumafos aus Bienenwachs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1260573A1 true EP1260573A1 (de) | 2002-11-27 |
| EP1260573B1 EP1260573B1 (de) | 2004-09-22 |
Family
ID=7686050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02010146A Expired - Lifetime EP1260573B1 (de) | 2001-05-25 | 2002-05-13 | Verfahren zur Abtrennung von Coumafos aus Bienenwachs |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6586610B2 (de) |
| EP (1) | EP1260573B1 (de) |
| AT (1) | ATE277152T1 (de) |
| DE (2) | DE10125431A1 (de) |
| HU (1) | HUP0201750A2 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2350216B1 (es) * | 2009-02-26 | 2012-04-20 | Francisco Jose Orantes Bermejo | Procedimiento de descontaminación de cera de abejas y cera de abejas resultante. |
| EP2824168B1 (de) | 2013-07-08 | 2015-09-23 | Hardy Gerster | Verfahren und Vorrichtung zum Aufreinigen von Bienenwachs |
| ES2834658A1 (es) * | 2019-12-18 | 2021-06-18 | Univ Almeria | Procedimiento de eliminación de contaminantes de cera de abeja |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB665157A (en) * | 1949-01-31 | 1952-01-16 | John Jay Naugle | Improvements in method of refining waxes |
| GB671113A (en) * | 1949-02-08 | 1952-04-30 | Nicholas Weiser | Improvements in or relating to the refining of waxes |
| JPH1161176A (ja) * | 1997-08-11 | 1999-03-05 | Nogyo Kyodo Kumiai Chuokai | 蜜蝋の製造方法 |
-
2001
- 2001-05-25 DE DE10125431A patent/DE10125431A1/de not_active Withdrawn
-
2002
- 2002-04-30 US US10/135,286 patent/US6586610B2/en not_active Expired - Lifetime
- 2002-05-13 AT AT02010146T patent/ATE277152T1/de active
- 2002-05-13 DE DE50201067T patent/DE50201067D1/de not_active Expired - Lifetime
- 2002-05-13 EP EP02010146A patent/EP1260573B1/de not_active Expired - Lifetime
- 2002-05-24 HU HU0201750A patent/HUP0201750A2/hu unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB665157A (en) * | 1949-01-31 | 1952-01-16 | John Jay Naugle | Improvements in method of refining waxes |
| GB671113A (en) * | 1949-02-08 | 1952-04-30 | Nicholas Weiser | Improvements in or relating to the refining of waxes |
| JPH1161176A (ja) * | 1997-08-11 | 1999-03-05 | Nogyo Kyodo Kumiai Chuokai | 蜜蝋の製造方法 |
Non-Patent Citations (3)
| Title |
|---|
| J. KOCHANSKY ET AL.: "Comparison of the transfer of coumaphos from beeswax into syrup and honey", APIDOLOGIE, vol. 32, no. 2, 2001, ARBEITSGEMEINSCHAFT DER INSTITUTE FUER BIENENFORSCHUNG, CELLE, DE, pages 119 - 125, XP008006961, ISSN: 0044-8435 * |
| PATENT ABSTRACTS OF JAPAN vol. 1999, no. 08 30 June 1999 (1999-06-30) * |
| S. ZIMMERMANN ET AL.: "Bestimmung von Brompropylat, 4,4'-Dibrombenzophenon, Coumaphos und Fluvalinat in Bienenwachs", DEUTSCHE LEBENSMITTEL-RUNDSCHAU, vol. 89, no. 11, 1993, STUTTGART, DE, pages 341 - 343, XP008006950 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US6586610B2 (en) | 2003-07-01 |
| EP1260573B1 (de) | 2004-09-22 |
| DE10125431A1 (de) | 2002-11-28 |
| DE50201067D1 (de) | 2004-10-28 |
| HU0201750D0 (de) | 2002-07-29 |
| HUP0201750A2 (hu) | 2002-12-28 |
| US20020174803A1 (en) | 2002-11-28 |
| ATE277152T1 (de) | 2004-10-15 |
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