DE129294C - - Google Patents
Info
- Publication number
- DE129294C DE129294C DENDAT129294D DE129294DA DE129294C DE 129294 C DE129294 C DE 129294C DE NDAT129294 D DENDAT129294 D DE NDAT129294D DE 129294D A DE129294D A DE 129294DA DE 129294 C DE129294 C DE 129294C
- Authority
- DE
- Germany
- Prior art keywords
- pumice
- water
- sand
- stone
- pumice stone
- 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
- 239000008262 pumice Substances 0.000 claims description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 8
- 239000004575 stone Substances 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 4
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000009835 boiling Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N Sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000002969 artificial stone Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 238000003756 stirring Methods 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Description
KAISERLICHESIMPERIAL
Es ist bereits bekannt, vergl. Patentschrift 57682, mit Wasserglas gebundene Kunststeinmassen, z. B. Thon, Silicate, durch Verdampfung des eingeschlossenen Wassers porös zu machen.It is already known, see patent 57682, artificial stone masses bound with water glass, z. B. clay, silicates, porous by evaporation of the enclosed water close.
Dieses Verfahren wird nach vorliegender Erfindung dazu benutzt, natürlichen Bimssand in Bimssteinkörper zu verwandeln, welche infolge Einwirkung von Alkalilauge frei von Krystallen und kratzenden Bestandteilen sind. Man kann nämlich für Schleifzwecke die deutschen Bimssteine nicht verwenden, weil ihnen die genannten Eigenschaften abgehen. Auch bei dem besten sizilianischen Bimsstein finden sich solche Einsprengungen, welche bei der Verwendung des sonst guten Materials störend empfunden werden.This method is used according to the present invention to natural pumice sand to be transformed into pumice stone, which as a result of the action of alkali lye free of Crystals and scratchy components are. You can use the German Do not use pumice stones because they lack the properties mentioned. Even in the best Sicilian pumice stone there are such indentations, which in the Use of the otherwise good material can be perceived as annoying.
Das Verfahren wird in folgender Weise ausgeübt: The procedure is carried out in the following way:
Staubfein gemahlener Bimssand wird in verdünnte 10 bis ι 5 procentige Kali- oder Natronlauge eingetragen, so dafs auf den Hektoliter Lauge 100 kg Bimssand kommen. Das Ganze wird im Wasserbade oder Dampfbade unter Umrühren so lange gekocht, bis die Mischung breiig geworden ist.Dust-fine ground pumice sand is diluted in 10 to ι 5 percent potassium or sodium hydroxide solution entered, so that there are 100 kg of pumice sand per hectolitre of lye. The whole is cooked in a water bath or steam bath while stirring until the mixture has become pulpy.
Diese steife Masse bringt man darauf in Formen, welche dann in einem Backofen einer Temperatur von 3000, welche schnell bis auf 700 ° gesteigert wird, ausgesetzt werden. Auf diese Weise wird ein gewaltsames, stromweises Entweichen des Wasserdampfes herbeigeführt, so dafs das Ganze eine vollkommen bimssteinartige, poröse Masse darstellt, welche für Schleifzwecke vorzüglich geeignet ist.This rigid mass is brought out in molds, which are then exposed in an oven at a temperature of 300 0, which is rapidly increased up to 700 °. In this way a violent, current-wise escape of the water vapor is brought about, so that the whole is a completely pumice-like, porous mass, which is excellently suited for grinding purposes.
Claims (1)
Verfahren zur Herstellung von Bimssteinkörpern aus Bimssand, dadurch gekennzeichnet, dafs natürlicher Bimssarid mit verdünnter Alkalilauge zu einem Brei eingekocht und aus letzterem durch plötzliche Erhitzung das Wasser ausgetrieben wird, zum Zweck, die gebildete Masse porös zu machen.Patent-An saying:
Process for the production of pumice stone bodies from pumice sand, characterized in that natural pumice stone is boiled to a paste with dilute alkali lye and the water is expelled from the latter by sudden heating for the purpose of making the mass formed porous.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE129294C true DE129294C (en) |
Family
ID=397766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT129294D Active DE129294C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE129294C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1045985B (en) * | 1956-04-12 | 1958-12-11 | Henkel & Cie Gmbh | Process for the preparation of volatile halogenated compounds |
-
0
- DE DENDAT129294D patent/DE129294C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1045985B (en) * | 1956-04-12 | 1958-12-11 | Henkel & Cie Gmbh | Process for the preparation of volatile halogenated compounds |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE129294C (en) | ||
| DE351865C (en) | Process for the production of artificial stones | |
| DE610607C (en) | Process for the production of a building material from aluminum hydrosilicate and an alkaline earth base | |
| DE897670C (en) | Stabilizing agent for aerated concrete | |
| DE113818C (en) | Method for coloring calcareous artificial stone or mortar mass. | |
| DE226032C (en) | ||
| DE347268C (en) | Process for the production of artificial trass | |
| DE87119C (en) | ||
| US1038783A (en) | Cleaning compound. | |
| DE600327C (en) | Method of hardening clay at low temperature | |
| DE285539C (en) | ||
| DE382421C (en) | Process for the production of water-repellent Baukoerpern, Isolierkoerpern u. Like. Made from peat | |
| AT376999B (en) | METHOD FOR PRODUCING PUNIC WAX | |
| AT59706B (en) | Process for the production of size. | |
| DE621340C (en) | Process for the production of hydrosilicate-bound molded articles | |
| DE386375C (en) | Process for the production of artificial stone from peat and cement | |
| DE310051C (en) | ||
| AT80876B (en) | Process for the production of a feed from Process for the production of a feed from straw (e.g. from cereals and legumes) through straw (e.g. from cereals and legumes) by digesting the same with alkali. h digestion of the same with alkali lye. | |
| DE407106C (en) | Process for upgrading natural asphalt and the like Like substances | |
| DE535448C (en) | Process for producing a heat protection agent, consisting of basic magnesium carbonate and fibers | |
| DE126092C (en) | ||
| DE447903C (en) | Production of pure white barite | |
| AT94013B (en) | Process for the production of artificial stone from peat and cement. | |
| DE444217C (en) | Process for the production of cork fittings | |
| DE140989C (en) |