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公开(公告)号：EP3715013A1
公开(公告)日：2020-09-30
申请号：EP19305412.9
申请日：2019-03-29
申请人： IMERTECH SAS
IPC分类号： B22D11/108 , C01B33/24
摘要： A method of manufacturing a mineral product for a mould flux for use in metal casting comprises: providing a precursor material comprising hydrated calcium silicate; and calcining the precursor material at a temperature equal to or greater than about 800°C to produce a calcined material comprising calcium silicate.
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公开(公告)号：EP3705463A1
公开(公告)日：2020-09-09
申请号：EP20172148.7
申请日：2014-08-05
申请人： IMERTECH SAS
摘要： The present invention relates to castable refractory compositions based on magnesia aggregates. The compositions according to the invention consist of a plurality of dry components and a plurality of wet components, said castable refractory composition comprising, based on the total weight of the castable refractory composition, between 80 wt.-% and 99 wt.-% of a magnesia aggregate material, between 0.1 wt.-% and 10 wt.-% carbonaceous material, between 0.1 wt.-% and 5 wt.-% antioxidant, and a non-aqueous binder comprising one or more esterified fatty acids, such as esterified vegetable oils or biodiesels. The compositions according to the invention comprise no more than 2 wt.-% water, the fixed carbon in the composition is no more than about 10 wt.-%, and the antioxidant is selected from boron carbide, silicon carbide, silicon nitride, calcium boride, zirconium boride, aluminium metal, zinc metal, silicon metal, barium metal, titanium metal, one more aluminium-magnesium alloys, one or more zinc-magnesium alloys, one or more zinc-aluminium-magnesium alloys, or from combinations thereof. Also part of the present invention is the use of the compositions in casting, vibration casting, spray-casting, gunning, self-flowing, ramming, shotcrete or patching processes, and their method of formation.
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