DE160981C - - Google Patents
Info
- Publication number
- DE160981C DE160981C DENDAT160981D DE160981DA DE160981C DE 160981 C DE160981 C DE 160981C DE NDAT160981 D DENDAT160981 D DE NDAT160981D DE 160981D A DE160981D A DE 160981DA DE 160981 C DE160981 C DE 160981C
- Authority
- DE
- Germany
- Prior art keywords
- asbestos
- bodies
- water glass
- acids
- objects
- 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.)
- Active
Links
- 239000010425 asbestos Substances 0.000 claims description 8
- 229910052895 riebeckite Inorganic materials 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N Sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 235000019353 potassium silicate Nutrition 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims 1
- 239000002253 acid Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 150000007513 acids Chemical class 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 210000000188 Diaphragm Anatomy 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N Silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000000717 retained Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Filtering Materials (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
JVl 160981 KLASSE 80 h. JVl 160981 CLASS 80 h.
Die nach dem D. R. P. 148936 behandelten Gegenstände aus Asbest sind im Gegensatz zu den nicht bearbeiteten Asbestkörpern in Wasser oder in Flüssigkeiten, selbst bei deren Siedetemperaturen absolut beständig. Sie sind stark porös und eignen sich mit diesen Eigenschaften besonders zum Gebrauche als Filterkörper und als Diaphragmen für elektrochemische Arbeiten.Those treated according to the D. R. P. 148936 In contrast to the unprocessed asbestos bodies, objects made of asbestos are in Water or in liquids, absolutely stable even at their boiling temperatures. she are highly porous and with these properties they are particularly suitable for use as Filter bodies and as diaphragms for electrochemical work.
Die verschiedenen Varietäten des Asbestes verhalten sich nun verschieden gegen die Einwirkung von Säuren. Während die in der Natur seltener vorkommenden, wenig chemisch gebundenes Wasser enthaltendenThe different varieties of asbestos behave differently towards them Exposure to acids. While those less common in nature, little containing chemically bound water
L5 säurebeständig sind, lassen die hauptsächlich auf den Markt kommenden, in der Technik fast ausschließlich verwendeten wasserreichen Sorten diese hervorragende Eigenschaft leider vermissen. Gegenstände aus derartigem As-L5 are acid-resistant, leave the mainly water-rich ones coming onto the market that are almost exclusively used in technology Unfortunately, varieties lack this excellent property. Objects from such a
äo best verändern sich daher auch noch nach der Verarbeitung nach Vorschrift des D. R. P. 148936 in Berührung mit Säuren.äo best therefore also change afterwards processing according to the regulations of D. R. P. 148936 in contact with acids.
Um nun auch in'Säuren beständige und dabei poröse Körper zu erhalten, braucht man nur auf den nach dem D. R. P. 148936 behandelten Gegenständen Kieselsäure niederzuschlagen. In order to obtain bodies that are resistant to acids and at the same time porous, one needs one can only deposit silica on objects treated according to D. R. P. 148936.
Dies erreicht man am besten durch Tränken mit Wasserglaslösung, aus der nach den bekannten Verfahren, z. B. durch Behandeln mit Säuren oder Bikarbonatlösung, Trocknen an der kohlensäurehaltigen Luft usw., die Kieselsäure zur Abscheidung gebracht wird.This is best achieved by soaking with water glass solution, from which according to the known Procedure, e.g. B. by treating with acids or bicarbonate solution, drying in the carbonated air, etc., the Silicic acid is brought to the deposition.
Das Tränken poröser Körper mit kolloidalen Lösungen hat. nun aber seine Schwierigkeiten, da der kolloidal gelöste Stoff durch derartige Körper zurückgehalten wird und also nur das Lösungsmittel in die Poren eindringt. Diese Erscheinung wird ja bekanntlich auch praktisch verwertet und wird als Dialyse bezeichnet.Has soaking porous bodies with colloidal solutions. but now his difficulties because the colloidally dissolved substance is retained by such bodies and therefore only the solvent in the pores penetrates. As is well known, this phenomenon is and is being used in practice called dialysis.
Durch Behandeln in der Wärme, am besten bei Siedehitze, kommt man jedoch zum Ziel und kann ein gleichmäßiges Imprägnieren erreichen.However, by treating in heat, preferably at boiling point, you can achieve your goal and can achieve a uniform impregnation.
Bisher konnte man Asbestplattenkörper weder mit Wasserglaslösungen noch überhaupt mit wässerigen Lösungen bei höheren Temperaturen behandeln, da sie dabei ihre Form vollständig einbüßten.Until now, asbestos sheet bodies could not be used with water glass solutions, or even at all Treat with aqueous solutions at higher temperatures, as they do their Forfeited form completely.
Das imprägnieren mit heißen Wasscrglaslösungen ist daher ein vollständig neues Verfahren. :Impregnation with hot water glass solutions is therefore a completely new process. :
Die Kieselsäure scheidet sich auf den Fasern der Asbestkörper aus, erhöht wesent-Hch deren Säurebeständigkeit, verstopft jedoch nicht die Poren; die Gegenstände bleiben daher hochporös.The silica precipitates on the fibers of the asbestos bodies, increasing significantly their resistance to acid, but does not clog the pores; the objects remain therefore highly porous.
Claims (1)
Ausführungsform des Verfahrens zur Herstellung von Asbestkörpern durch Zusammenpressen von zerkleinertem Asbest ohne Anwendung von Bindemitteln gemäß Patent 148936, dadurch gekennzeichnet, daß die Asbestkörper mit warmen bezw. heißen Wasserglaslösungen getränkt werden, worauf die Kieselsäure in bekannter Weise abgeschieden wird.Patent to SPRUC η:
Embodiment of the method for the production of asbestos bodies by pressing together shredded asbestos without using binders according to patent 148936, characterized in that the asbestos body with warm respectively. hot water glass solutions are soaked, whereupon the silica is deposited in a known manner.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE160981C true DE160981C (en) |
Family
ID=426899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT160981D Active DE160981C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE160981C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1057946B (en) * | 1955-08-24 | 1959-05-21 | Silika Und Schamotte Fabriken | Process for compacting carbon stones for containers, in particular for cellulose stoves |
| DE1260896B (en) * | 1963-06-20 | 1968-02-08 | Ferodo Sa | Welded axial connection of two pipes |
-
0
- DE DENDAT160981D patent/DE160981C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1057946B (en) * | 1955-08-24 | 1959-05-21 | Silika Und Schamotte Fabriken | Process for compacting carbon stones for containers, in particular for cellulose stoves |
| DE1260896B (en) * | 1963-06-20 | 1968-02-08 | Ferodo Sa | Welded axial connection of two pipes |
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