DE127869C - - Google Patents
Info
- Publication number
- DE127869C DE127869C DENDAT127869D DE127869DA DE127869C DE 127869 C DE127869 C DE 127869C DE NDAT127869 D DENDAT127869 D DE NDAT127869D DE 127869D A DE127869D A DE 127869DA DE 127869 C DE127869 C DE 127869C
- Authority
- DE
- Germany
- Prior art keywords
- barite
- solution
- ohj
- salts
- 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
- TZCXTZWJZNENPQ-UHFFFAOYSA-L Barium sulfate Chemical class [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 13
- 238000005530 etching Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 206010037844 Rash Diseases 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- 229910052570 clay Inorganic materials 0.000 claims description 2
- 238000006253 efflorescence Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- 238000002791 soaking Methods 0.000 claims 1
- 229910052601 baryte Inorganic materials 0.000 description 8
- 239000010428 baryte Substances 0.000 description 8
- 239000011449 brick Substances 0.000 description 6
- 239000011780 sodium chloride Substances 0.000 description 5
- 239000004575 stone Substances 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M NaHCO3 Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000015450 Tilia cordata Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- ZUYFLSARRQBQPE-UHFFFAOYSA-M [Cl-].[Ba+] Chemical compound [Cl-].[Ba+] ZUYFLSARRQBQPE-UHFFFAOYSA-M 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/04—Clay; Kaolin
- C04B33/06—Rendering lime harmless
- C04B33/08—Preventing efflorescence
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/04—Clay; Kaolin
- C04B33/06—Rendering lime harmless
-
- 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
- C04B33/00—Clay-wares
- C04B33/30—Drying methods
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
PATENTAMT.PATENT OFFICE.
- M 127869 KLASSE 806.- M 127869 CLASS 806.
in BERLIN.in Berlin.
Verblendsteine und Mauersteine leiden vielfach an dem Uebelstand, dafs sie, trotzdem die löslichen Salze im Thon durch Barytzuschläge unlöslich gemacht sind, nach dem Vermauern oder Nafswerden an der Oberfläche ausblühen. Die Ursache ist darin zu erblicken, dafs durch den Brennprocefs lösliche Salze gebildet werden, welche nicht durch einen erhöhten Zusatz von Barytsalzen zum Ziegelgut verhindert werden können. Die zum Ziegelgut beigefügten Barytsalze werden beim Brennen unlöslich durch Bildung von Silicaten und können demzufolge im Stein nicht mehr wirken.Facing bricks and bricks often suffer from the disadvantage that they, despite the fact that they are soluble salts in clay are made insoluble by adding barite, after bricking or Nafs will bloom on the surface. The cause is to be seen in the fact that through Soluble salts are formed during the burning process, which are not due to an increased addition of barite salts to the brick material can be prevented. The ones attached to the brick goods Barite salts become insoluble on firing due to the formation of silicates and can consequently no longer work in stone.
Um nun gebrannte Ziegel, welche lösliche Salze enthalten, von der unangenehmen Eigenschaft, Ausblühungen zu zeigen, zu befreien, werden dieselben in eine Aetzbarytlösung getaucht, wobei folgendes Verfahren angewendet werden kann.In order now to burn bricks, which contain soluble salts, from the unpleasant property, To show efflorescence, to free them, they are immersed in a bituminous solution, the following procedure can be used.
Man bestimmt zunächst die Menge der umsetzungsbedürftigen Salze und berechnet daraus die anzuwendende Menge Aetzbaryt für das Kilogramm gebrannte Steinsubstanz, dieselbe möge g sein; alsdann ermittelt man die Wasseraufnahmefähigkeit (Porosität) des erbrannten Erzeugnisses und berechnet ebenfalls die Wassermenge für das Kilogramm Stein, dieselbe möge G sein. Es wird dann eine Barytlösung hergestellt, welche in G Theilen Wasser g Theile Aetzbaryt enthält. Alsdann werden die gebrannten Erzeugnisse in die erhaltene Barytlösung getaucht und hierin eine gewisse Zeit belassen, um sich mit der Barytlösung vollkommen zu sättigen.First of all, the amount of the salts that need to be converted is determined and from this the amount of etching barite to be used for the kilogram of calcined stone substance is calculated, which may be g ; Then the water absorption capacity (porosity) of the burnt product is determined and the amount of water for the kilogram of stone is also calculated, let G be the same. A barite solution is then prepared which contains, in G parts of water, g parts of etched barite. The fired products are then immersed in the barite solution obtained and left therein for a certain time in order to be completely saturated with the barite solution.
Statt Aetzbaryt kann man auch die Lösung eines anderen Barytsalzes benutzen unter Zusatz von Alkalihydrat. Soll beispielsweise Chlorbarium Verwendung finden, so wird dieses nach der GleichungInstead of aetzbaryt you can also use a solution of another barite salt with the addition of alkali hydrate. If, for example, chlorbarium is to be used, this is according to the equation
Ba Cl2 + 2 Na OH = Ba (OHJ2 + 2 Na Cl Ba Cl 2 + 2 Na OH = Ba (OHJ 2 + 2 Na Cl
mit Natron versetzt. Allerdings gelangt dann beim Tauchen aufser Aetzbaryt auch Chlornatrium in den Stein. Letzteres wird aber infolge der Leichtlöslichkeit beim ersten Regengufs abgewaschen. Der Aetzbaryt wirkt in gebrannten Steinen ebenso, wie die in bekannter Weise zum Ziegelgut gegebenen Barytsalze unter Bildung unlöslicher Verbindungen. Beispielsweise mixed with baking soda. However, when diving, sodium chloride also gets onto the etching barite in the stone. The latter is due to the easy solubility at the first rain washed. The etching barite works in fired stones as well as in well-known ones Way, barite salts added to the brick with the formation of insoluble compounds. For example
CaSOi-\- Ba (OHJ2 = Ba SO4 + Ca (OHJ2
oder
Ca HVdOt + Ba (OHJ2 = Ba H Vd O4 CaSO i - \ - Ba (OHJ 2 = Ba SO 4 + Ca (OHJ 2 or
Ca HVdO t + Ba (OHJ 2 = Ba H Vd O 4
+ Ca (OHJ2 u. s. w.+ Ca (OHJ 2 etc.
Das gebildete Kalkhydrat wird durch Kohlensäureaufnahme aus der Luft ebenfalls unlöslich. The hydrate of lime formed also becomes insoluble when carbon dioxide is absorbed from the air.
Claims (2)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE127869C true DE127869C (en) |
Family
ID=396435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT127869D Active DE127869C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE127869C (en) |
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0
- DE DENDAT127869D patent/DE127869C/de active Active
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