Φωνή του Κηρεώτη

=> => : admin February 27, 2009, 09:38:15 AM



: , .
: admin February 27, 2009, 09:38:15 AM
(http://i356.photobucket.com/albums/oo6/kireas_2008/magnesite_0.jpg) (http://www.geo.auth.gr/106/5_carbonates/magnesite.htm)

- (Magnesite )

(MgCO3) . , .  CaCO3,  CaCO3 MgCO3, MgCO3.      .

: , , , ;
- : .
-: MgO ( )
- : 14500C , , .
- : (500 - 12000C) 10% .
- , , MgO ( ). ( (http://www.amfitheatro.gr/sos/oriktonporon.php))




,   .       (ultramafic) , .
() . . () , , , , . , . 3 :
- 0,5 - 4 m .
- (stock work) .
- () , m3. ( (http://www.amfitheatro.gr/sos/oriktonporon.php))

(http://www.geo.auth.gr/106/5_carbonates/magnesite_19.jpg)



 
(http://i356.photobucket.com/albums/oo6/kireas_2008/leykolithos2.jpg)
: Ω ΩΩ Ω Ω ΩΩ . ., . . ∆ . XXXVI, 2004 10 ∆ , / 2004 (http://www.geo.auth.gr/ege2004/articles/EG21_383.pdf)

(tn)
(http://i356.photobucket.com/albums/oo6/kireas_2008/apouema.jpg)


    , .
 
80% >1600 C, , 2800 . MgO. , , .
.

  , , . (Cr2O3+Al2O3>57% Cr2O3>30%) - , .
  , , (CaCO3.MgCO3), (Mg2SiO4),  (H4Mg3Si2O9), (H2Mg3Si4O12), MgO .
  , , , , , , , , ...
:
- 90% Mg Al, Zn, Mn .
- 10-30% Al 90-70% Mg.
- 0,5-2% Mg Al Si.
  , , Sorel . MgCl2 . , , , , .
. , . MgO>96% >3,2 gr/cm3.

  Sorel . (http://translate.google.com/translate?prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Fwww.premierchemicals.com%2Fcorner%2Farticles%2Fcements.htm&sl=en&tl=el&history_state0=)

T Sorel ( ) Stanislas Sorel 1867. ( ) .    Sorel , , ( ), , (.. ).    10000 - 12000 psi (Portland) 2000 psi. , .  , . ( (http://en.wikipedia.org/wiki/Sorel_cement))



    ( )  . , , .

:http://www.showcaves.com/english/explain/Mines/Magnesite.html (http://translate.google.com/translate?prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Fwww.showcaves.com%2Fenglish%2Fexplain%2FMines%2FMagnesite.html&sl=en&tl=el&history_state0=)


(http://i356.photobucket.com/albums/oo6/kireas_2008/erg03.jpg) (http://www.servitoros.gr/evia/photo/index.php?catid=36)

(http://i356.photobucket.com/albums/oo6/kireas_2008/skalistiri1.jpg)
10 70 80



(http://i356.photobucket.com/albums/oo6/kireas_2008/magnesiumoxide.gif) (http://translate.google.com/translate?prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Fwww.sriconsulting.com%2FCEH%2FPublic%2FReports%2F747.2000%2F&sl=en&tl=el&history_state0=)




(http://www.servitoros.gr/education/view.php/3/45/)

, , ,  (http://translate.google.com/translate?prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Fviewer.zoho.com%2Fdocs%2FilOTd&sl=en&tl=el&history_state0=)


. (http://nemertes.lis.upatras.gr/dspace/handle/123456789/228)





() (MgCO3), . CaCO3.MgCO3 (KCl.MgCl2.6H2O), (MgCl2.6H2O) (MgSO4.H2O), Mg.
To , , . ' , , 1755 .
, .

, 4-10 m. , , .
, .
, .   (..>3.02 gr*/cm3, :3.5-4.0), , , (.:2.9-3.0 gr*/cm3, :3.5-5.0). , CaCO3, Al2O3 SiO2 .

.

, . , , , ( -, FeCO3,  5-30%).
(MgO) (caustic calcined magnesia), , 800 C - 1200 C, CO2 , 2-7%CO2, (700C -1200C).
, 1450C ( 1800C, ), , , , 0,5 % CO2.    

, , , . 
(MgO, .. 2800C), ( ), .   .

, , . (Cr2O3+Al2O3>57% Cr2O3>30%) - , .
, , (CaCO3.MgCO3), (Mg2SiO4),  (H4Mg3Si2O9), (H2Mg3Si4O12), MgO .
, , , , , , , , ...
:
- 90% Mg Al, Zn, Mn .
- 10-30% Al 90-70% Mg.
- 0,5-2% Mg Al Si.
  , , Sorel . MgCl2 . , , , , .
. , . MgO>96% >3,2 gr/cm3.




.

. (, , , ) (, , , , ). (, ), (), , .
500.000 tn.


(http://i356.photobucket.com/albums/oo6/kireas_2008/apouema.jpg)

. , , 0,1m - 1,5m stockworks     4 cm - 40 cm. . MgCO3 10%, . , , , (2,8gr*/cm3-3,1gr*/cm3) CaCO3 SiO2 , 2,5 gr*/cm3-2,7 gr*/cm3.

(http://www.metal.ntua.gr/uploads/3472/438/4_magnhsiths.ppt)


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