Granulating and drying strontium carbonate - by mixing with water and binder of strontium oxide or opt. hydrated hydroxide before drying avoids addn. of impurity ions; used for making glass e.g. for x-ray absorbing TV screen

Granular SrCO3 (I) is prepd. by mixing SrCO3 with water in the presence of an additive (II) and then granulating and drying the mixt., (II) is a binder, consisting of SrO or (hydrated) Sr(OH)2. USE/ADVANTAGE - (I) is used in glass mfr. (claimed). The glass is useful for making TV screens which absor...

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Bibliographische Detailangaben
1. Verfasser:	PLANES, GILBERTO MARTINEZ, MONTERREY, MX
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS GLASS INORGANIC CHEMISTRY JOINING GLASS TO GLASS OR OTHER MATERIALS METALLURGY MINERAL OR SLAG WOOL PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Granular SrCO3 (I) is prepd. by mixing SrCO3 with water in the presence of an additive (II) and then granulating and drying the mixt., (II) is a binder, consisting of SrO or (hydrated) Sr(OH)2. USE/ADVANTAGE - (I) is used in glass mfr. (claimed). The glass is useful for making TV screens which absorb x-rays. (I) is free from added impurity ions, esp. if contact with inorganic refractory material is avoided during granulation and drying (claimed).