Method for making a highly exfoliated vermiculite without using any organic binder or additive for forming the same

Method for making a highly exfoliated vermiculite without using any organic binder or additive for forming the same

A method for preparing an exfoliated vermiculite, comprising the following steps: (a) a step of heating a non-exfoliated hydrated vermiculite at a temperature extending from 400 to 600° C. for a period extending from 3 hours to 7 hours, in this way generating a dehydrated vermiculite; and (b) a step...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: FUZELLIER, HERVE, LEFRANCOIS, MICHEL, HUDRY, DAMIEN, JULIAA, JEAN-FRANCOIS, CAPLAIN, PHILIPPE, REINERT, LAURENCE
Format: Patent
Sprache:eng
Schlagworte:
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:A method for preparing an exfoliated vermiculite, comprising the following steps: (a) a step of heating a non-exfoliated hydrated vermiculite at a temperature extending from 400 to 600° C. for a period extending from 3 hours to 7 hours, in this way generating a dehydrated vermiculite; and (b) a step of contacting the dehydrated vermiculite with a solution containing an intercalating agent capable of decomposing while generating gases.