AT104140B - Process for the production of unfired porous moldings for the purposes of diffusion, filtration or the like. - Google Patents
Process for the production of unfired porous moldings for the purposes of diffusion, filtration or the like.Info
- Publication number
- AT104140B AT104140B AT104140DA AT104140B AT 104140 B AT104140 B AT 104140B AT 104140D A AT104140D A AT 104140DA AT 104140 B AT104140 B AT 104140B
- Authority
- AT
- Austria
- Prior art keywords
- diffusion
- filtration
- purposes
- production
- binder
- Prior art date
Links
Landscapes
- Filtering Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Herstellung ungebrannter poröser Formkörper für die Zwecke der
Diffusion, Filtration od. dgl.
EMI1.1
<Desc/Clms Page number 2>
werden. Die Dauer der Erhitzung und die Art, bzw. die Stärke der Pressung sind in hohem Masse für die Gute der hergestellten Filterplatte bestimmend. Nach dem Pressen wird in kaltem Wasser abgekühlt, worauf sich die Filterplatte ohne Schwierigkeit aus der Pressform herausnehmen lässt.
Beispiel 2 : 60 g Qllarzsand mit einer Korngrösse von 0'05 mm und 100 g Quarzsand mit einer Korngrösse von etwa 0'1 mm werden unter gutem Durchmischen auf 1500 C erhitzt. In dieses Gemisch werden sodann, ohne weitere Erwärmung ca 55 g gepulverten Schwefels eingetragen, wobei fortwährend gerührt werden muss, so dass eine gleichmässige Verteilung gewährleistet und eine Klumpenbildung ausgeschlossen ist. Die so erhaltene, körnige Masse wird nun rasch in die auf etwa 120-130 C vorgewärmte Form gebracht und die Pressung mit einer Schraubenprcsse vorgenommen. Nach dem Pressen wird in kaltem Wasser abgekühlt, worauf die Diaphragmaplatte, wenn die Pressform vor der Verwendung entsprechend gereinigt wurde, ohne weiteres abgehoben werden kann.
Beispiel 3 : Es werden wie nach Beispiel 2 60 g Quarzsand mit einer Korngrösse von 0'05 mm und 100 g Quarzsand mit einer Korngrösse von etwa 0'1 mm unter gutem Durchmischen auf 150-160 C erhitzt. Gleichzeitig werden etwa 60 g Asphalt, allenfalls unter Zugabe von kleinen Schwefelmengen, geschmolzen. In diese Schmelze wird das Sandgemisch unter guter Verteilung eingetragen. Die körnig aussehende Masse wird alsdann in auf etwa 120-130 C vorgewärmtePressformen gebracht und verpresst.
Nach dem Pressen wird in kaltem Wasser abgekühlt, um die Diaphragmaplatte aus der Form entfernen zu können.
<Desc / Clms Page number 1>
Process for the production of unfired porous moldings for the purposes of
Diffusion, filtration or the like.
EMI1.1
<Desc / Clms Page number 2>
will. The duration of the heating and the type or strength of the pressure are largely decisive for the quality of the filter plate produced. After pressing, it is cooled in cold water, after which the filter plate can be removed from the mold without difficulty.
Example 2: 60 g of quartz sand with a grain size of 0.5 mm and 100 g of quartz sand with a grain size of about 0.1 mm are heated to 1500 ° C. with thorough mixing. About 55 g of powdered sulfur are then added to this mixture without further heating, with constant stirring so that even distribution is guaranteed and lump formation is excluded. The granular mass obtained in this way is then quickly brought into the mold, which has been preheated to about 120-130 C, and the pressing is carried out with a screw press. After pressing, it is cooled in cold water, whereupon the diaphragm plate can easily be lifted off if the press mold has been appropriately cleaned before use.
Example 3: As in Example 2, 60 g of quartz sand with a grain size of 0.5 mm and 100 g of quartz sand with a grain size of about 0.1 mm are heated to 150-160 ° C. with thorough mixing. At the same time, around 60 g of asphalt, possibly with the addition of small amounts of sulfur, are melted. The sand mixture is introduced into this melt with good distribution. The granular-looking mass is then placed in press molds preheated to about 120-130 C and pressed.
After pressing, it is cooled in cold water in order to be able to remove the diaphragm plate from the mold.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT104140T | 1924-06-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT104140B true AT104140B (en) | 1926-09-10 |
Family
ID=29274109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT104140D AT104140B (en) | 1924-06-12 | 1924-06-12 | Process for the production of unfired porous moldings for the purposes of diffusion, filtration or the like. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT104140B (en) |
-
1924
- 1924-06-12 AT AT104140D patent/AT104140B/en active
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