A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROCESS FOR THE TREATMENT OF A SILICATE MINERAL
The invention provides a process for the preparation of a first product comprising an alkali metal magnesium orthosilicate and (i) magnesium oxide or (ii) an alkali metal silicate, which process comprises the reaction, at a temperature from 500 to 1200°C, of an alkali metal carbonate compound, which compound is an alkali metal carbonate, an alkali metal bicarbonate or a mixture thereof, with a magnesium silicate, the molar ratio of alkali metal carbonate compound, expressed as alkali metal oxide of the formula R 2 O, in which R represents an alkali metal, to magnesium silicate, expressed as silicon dioxide, of the formula SiO 2 , being from 4:1 to 1:4, and contacting the first product with water to produce a second product comprising magnesium hydroxide and isolating or producing further useful products from the second product.
PROCESS FOR THE TREATMENT OF A SILICATE MINERAL
The invention provides a process for the preparation of a first product comprising an alkali metal magnesium orthosilicate and (i) magnesium oxide or (ii) an alkali metal silicate, which process comprises the reaction, at a temperature from 500 to 1200°C, of an alkali metal carbonate compound, which compound is an alkali metal carbonate, an alkali metal bicarbonate or a mixture thereof, with a magnesium silicate, the molar ratio of alkali metal carbonate compound, expressed as alkali metal oxide of the formula R 2 O, in which R represents an alkali metal, to magnesium silicate, expressed as silicon dioxide, of the formula SiO 2 , being from 4:1 to 1:4, and contacting the first product with water to produce a second product comprising magnesium hydroxide and isolating or producing further useful products from the second product.
PROCESS FOR THE TREATMENT OF A SILICATE MINERAL
VERFAHREN ZUR BEHANDLUNG EINES SILIKATMINERALS
PROCÉDÉ DE TRAITEMENT D'UN MINÉRAL SILICATÉ
GARTNER ELLIS (author) / PISCH ALEXANDER (author) / MEYER VINCENT (author)
2017-04-05
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
/
B01D
SEPARATION
,
Trennen
/
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
C01D
Verbindungen der Alkalimetalle, d.h. des Lithiums, Natriums, Kaliums, Rubidiums, Cäsiums oder Franciums
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COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
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C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
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Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden