AT28732B - Process for the production of magnesia cement. - Google Patents
Process for the production of magnesia cement.Info
- Publication number
- AT28732B AT28732B AT28732DA AT28732B AT 28732 B AT28732 B AT 28732B AT 28732D A AT28732D A AT 28732DA AT 28732 B AT28732 B AT 28732B
- Authority
- AT
- Austria
- Prior art keywords
- cement
- production
- magnesia cement
- water
- magnesium
- Prior art date
Links
- 239000004568 cement Substances 0.000 title claims description 10
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 title claims description 9
- 239000000395 magnesium oxide Substances 0.000 title claims description 5
- 238000004519 manufacturing process Methods 0.000 title description 3
- 238000000034 method Methods 0.000 title description 3
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 5
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims 1
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 229910052928 kieserite Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- IQYKECCCHDLEPX-UHFFFAOYSA-N chloro hypochlorite;magnesium Chemical compound [Mg].ClOCl IQYKECCCHDLEPX-UHFFFAOYSA-N 0.000 description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 description 2
- ZUYFLSARRQBQPE-UHFFFAOYSA-M [Cl-].[Ba+] Chemical compound [Cl-].[Ba+] ZUYFLSARRQBQPE-UHFFFAOYSA-M 0.000 description 1
- TYEKNWPJJFDHTH-UHFFFAOYSA-N [Cl].[Ba] Chemical compound [Cl].[Ba] TYEKNWPJJFDHTH-UHFFFAOYSA-N 0.000 description 1
- 239000002969 artificial stone Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Herstellung von Magnesiazement.
EMI1.1
Magnesiumchlorid zugesetzt wurde. Das Erhärten beruht auf der Bildung von Magnesiumoxychlorid. Um den Transport der verhältnismässig grüssen Menge von Wasser in der Magnesiumchloridlösung zu umgehen, ist vorgeschlagen worden, magnesiumoxid mit
EMI1.2
ein und bildet Magnesiumoxychlorid.
Es hat sich nun herausgestellt, dass diese Zementmischungen sehr wenig haltbar sind und infolgedessen keinen langdauernden Transort oder längere Lagerung vertragen, ohne stark an Wert zu verlieren. Das Magnesiumsulfat, Bittersalz, die gewöhnliche Handelsware,
EMI1.3
ist durchaus nicht luftbeständig, sondern verwittert, indem es bei mittlerer Temperatur und besonders leicht im Zustande feiner Verteilung Wasser verliert. Dieses im Zementgemische während des Lagerns oder des Transportes austretende Wasser wird natürlich von
EMI1.4
bildet, ist nicht verwendbar, weil Kieserit in Wasser von gewöhnlicher Temperatur fast unlöslich ist und infolgedessen beim Anrühren eines Zementgemisches von Chlorbarium,
EMI1.5
liellcr Kieserit liisen und mit dem Chlorbarium in Wechselwirkung treten kann.
Derartige Zementgemische erhärten daber nicht genügend, weil der Umsetzungsprozess unvollkommen ist. Auch vergrössert der gemahlene Kieserit beimLagern durch Wasseraufnahme sein Volumen, so dass die Gefahr des Berstens der Aufbewahrungs- und Versandgefässe besteht.
Die vorUege'nde Erfindung besteht nun darin, dass zu der bekannten Zens'entmischung ein Magnesiumsulfat verwendet wird, welches die oben erwähnten Fehler des Zement-
EMI1.6
<Desc/Clms Page number 2>
eine Temperatur von 45 C erhitzt wird. Die Herstellung und Verwendung des Zementes erfolgt in bekannter Weise. Der so hergestellte Zement kann in üblicher Weise zur Herstellung von Kunststeinen, feuersicheren Platten, Gefässen, mörtelartigen Bindemitteln usw. benutzt werden.
<Desc / Clms Page number 1>
Process for the production of magnesia cement.
EMI1.1
Magnesium chloride was added. The hardening is based on the formation of magnesium oxychloride. To avoid the relatively large amount of water in the magnesium chloride solution, it has been proposed to use magnesium oxide
EMI1.2
and forms magnesium oxychloride.
It has now been found that these cement mixes are very poorly durable and consequently cannot tolerate long-term transport or prolonged storage without losing much of their value. Magnesium sulphate, Epsom salt, the common commodity,
EMI1.3
is by no means air-resistant, but rather weathered, in that it loses water at medium temperatures and particularly easily in a state of fine distribution. This water escaping in the cement mix during storage or transport is naturally carried off by
EMI1.4
is not usable because kieserite is almost insoluble in water at ordinary temperature and consequently when mixing a cement mixture of chlorobarium,
EMI1.5
liellcr kieserite and can interact with the chlorine barium.
Such cement mixtures do not harden sufficiently because the conversion process is imperfect. The ground kieserite also increases its volume during storage by absorbing water, so that there is a risk of the storage and shipping containers bursting.
The present invention now consists in using a magnesium sulfate for the known demixing, which eliminates the above-mentioned defects in cement
EMI1.6
<Desc / Clms Page number 2>
a temperature of 45 C is heated. The cement is produced and used in a known manner. The cement produced in this way can be used in the usual way for the production of artificial stones, fire-proof plates, vessels, mortar-like binders, etc.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT28732T | 1904-03-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT28732B true AT28732B (en) | 1907-06-10 |
Family
ID=3541646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT28732D AT28732B (en) | 1904-03-02 | 1904-03-02 | Process for the production of magnesia cement. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT28732B (en) |
-
1904
- 1904-03-02 AT AT28732D patent/AT28732B/en active
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