CH439225A - Precoat filtration process - Google Patents
Precoat filtration processInfo
- Publication number
- CH439225A CH439225A CH1410266A CH1410266A CH439225A CH 439225 A CH439225 A CH 439225A CH 1410266 A CH1410266 A CH 1410266A CH 1410266 A CH1410266 A CH 1410266A CH 439225 A CH439225 A CH 439225A
- Authority
- CH
- Switzerland
- Prior art keywords
- filtration
- precoat
- beer
- precoat filtration
- filter aid
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12H—PASTEURISATION, STERILISATION, PRESERVATION, PURIFICATION, CLARIFICATION OR AGEING OF ALCOHOLIC BEVERAGES; METHODS FOR ALTERING THE ALCOHOL CONTENT OF FERMENTED SOLUTIONS OR ALCOHOLIC BEVERAGES
- C12H1/00—Pasteurisation, sterilisation, preservation, purification, clarification, or ageing of alcoholic beverages
- C12H1/02—Pasteurisation, sterilisation, preservation, purification, clarification, or ageing of alcoholic beverages combined with removal of precipitate or added materials, e.g. adsorption material
- C12H1/04—Pasteurisation, sterilisation, preservation, purification, clarification, or ageing of alcoholic beverages combined with removal of precipitate or added materials, e.g. adsorption material with the aid of ion-exchange material or inert clarification material, e.g. adsorption material
- C12H1/0408—Pasteurisation, sterilisation, preservation, purification, clarification, or ageing of alcoholic beverages combined with removal of precipitate or added materials, e.g. adsorption material with the aid of ion-exchange material or inert clarification material, e.g. adsorption material with the aid of inorganic added material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/02—Precoating the filter medium; Addition of filter aids to the liquid being filtered
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)
Description
Anschwemmfilfrationsverfahren
Die Erfindung betrifft ein Anschwemmfiltrationsverfahren.
Es ist bekannt, dass man natürlich vorhandene Kieselguren direkt oder nach einem Aufbereitungsprozess als Filterhilfsmittel bei der Anschwemmfiltration auf vielen Gebieten, wie zur Bier-, Wein-, Würzebehandlung oder Filtration usw., verwendet. Bisher war es nicht möglich, die bei chemischen Prozessen anfallenden synthetischen Fällungskieselsäuren als Filterhilfsmittel bei der Anschwemmfiltration anzuwenden, da ihnen die nach der derzeitig gültigen Auffassung filtrationswirksame Diatomeenstruktur fehlt.
Es ist aus der Literatur bekannt, dass Diatomeen in Nadelform eine langsame aber wirksame Filtration, solche mit messer- oder kammförmiger Struktur eine mittlere Filtration und solche mit viereckiger oder runder Form eine schnelle aber wenig wirksame Filtration ergeben.
Der Erfindung liegt die Aufgabe zugrunde, eine geeignete Kieselsäure anstelle von natürlicher Kieselgur als Filterhilfsmittel für die Anschwemmfiltration zu finden.
Es wurde nun gefunden, dass die aus der Umsetzung von Tonerdehydrat mit Hexafluorkieselsäure resultierende Fällungskieselsäure nach dem Waschen und Trocknen für die Anwendung als Filterhilfsmittel bei der Anschwemmfiltration, insbesondere zur Filtration von Bier, hervorragend geeignet ist.
Dies ist insofern überraschend, als es sich bei dieser Fällungskieselsäure um eine röntgenamorphe Kieselsäure handelt, die trotz des Fehlens der für Filtrationsguren typischen und nach dem bisherigen Stand der Technik als Voraussetzung für den Filtrationseffekt notwendige Diatomeenstruktur hervorragende Filtrationsergebnisse liefert. Damit wurde ein bisher wertloses Abfallprodukt der Aluminiumfluoridherstellung einem wirtschaftlichen Verwendungszweck zugeführt.
Beispiel :
Für die Filtration von 100 1 Bier werden etwa 80 g gewaschene und getrocknete Fällungskieselsäure resultierend aus der Umsetzung Tonerdehydrat und Hexafluorkieselsäure für die Primiäranschwemmung und der laufenden Dosierung bei einem Anschwommfilter benötigt.
Das so behandelte Bier ist frei von biologischen und kolloidalen Trübungen und weist eine Trübung von 25 Helm Einheiten auf.
PATENTANSPRtYCHE
I. Anschwemmfiltrationsverfahren, dadurch gekennzeichnet, dass man die aus der Umsetzung von Tonerdehydrat mit Hexalfluorkieselsäure nach dem Waschen und Trocknen resultierende Fällungskieselsäure als Fil terhllfsmittel verwendet.
II. Anwendung des Verfahrens nach Patentanspruch I für die Anschwemmfiltration von Bier.
**WARNUNG** Ende DESC Feld konnte Anfang CLMS uberlappen**.
Precoat filtration process
The invention relates to a precoat filtration process.
It is known that diatomite, which is naturally present, is used directly or after a treatment process as a filter aid in precoat filtration in many fields, such as for beer, wine, wort treatment or filtration, etc. Up to now it has not been possible to use the synthetic precipitated silicas that occur in chemical processes as filter aids in precoat filtration, since they lack the diatom structure that is currently effective in filtration.
It is known from the literature that needle-shaped diatoms result in slow but effective filtration, those with a knife-like or comb-shaped structure produce medium filtration, and those with a square or round shape produce rapid but ineffective filtration.
The invention is based on the object of finding a suitable silica instead of natural kieselguhr as a filter aid for precoat filtration.
It has now been found that the precipitated silica resulting from the reaction of alumina hydrate with hexafluorosilicic acid, after washing and drying, is outstandingly suitable for use as a filter aid in precoat filtration, in particular for filtering beer.
This is surprising insofar as this precipitated silica is an X-ray amorphous silica which, despite the lack of the diatom structure typical of filtration belts and necessary according to the prior art as a prerequisite for the filtration effect, delivers excellent filtration results. A previously worthless waste product from aluminum fluoride production was thus put to an economic use.
Example:
For the filtration of 100 l of beer, about 80 g of washed and dried precipitated silica resulting from the conversion of alumina hydrate and hexafluorosilicic acid are required for the primary sedimentation and the ongoing dosing with a float filter.
The beer treated in this way is free from biological and colloidal turbidity and has a turbidity of 25 helmet units.
PATENT APPLICATION
I. precoat filtration process, characterized in that the precipitated silica resulting from the reaction of alumina hydrate with hexalofluorosilicic acid after washing and drying is used as a filter aid.
II. Application of the method according to claim I for precoat filtration of beer.
** WARNING ** End of DESC field could overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD11483865 | 1965-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH439225A true CH439225A (en) | 1967-07-15 |
Family
ID=5478740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1410266A CH439225A (en) | 1965-12-21 | 1966-09-28 | Precoat filtration process |
Country Status (3)
| Country | Link |
|---|---|
| AT (1) | AT265177B (en) |
| CH (1) | CH439225A (en) |
| CS (1) | CS161690B2 (en) |
-
1966
- 1966-07-08 AT AT659666A patent/AT265177B/en active
- 1966-09-28 CH CH1410266A patent/CH439225A/en unknown
- 1966-11-11 CS CS720066A patent/CS161690B2/cs unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS161690B2 (en) | 1975-06-10 |
| AT265177B (en) | 1968-09-25 |
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