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公开(公告)号:US20220396528A1
公开(公告)日:2022-12-15
申请号:US17785148
申请日:2020-12-18
IPC分类号: C04B35/05 , C04B35/626 , C04B41/00 , C04B35/63 , C04B38/00
摘要: A dry backfill for producing a basic molded heavy-clay refractory product, to such a product and a method for producing the same, to a lining of an industrial furnace, and to an industrial furnace.
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公开(公告)号:US20190152860A1
公开(公告)日:2019-05-23
申请号:US16301786
申请日:2017-03-23
IPC分类号: C04B35/047 , C04B35/101 , C04B35/26 , C04B35/443 , C04B35/626 , C04B35/64
摘要: The invention relates to a granular, refractory mineral elasticizing granulate for refractory products, in particular for basic refractory products. The minerals consist of mono-phased fused spinel mixed crystal or multi-phased fusion products of the ternary system MgO−Fe2O3—Al2O3 of the composition range MgO: 12 to 19.5, in particular 15 to 17 wt.- %, Remainder: Fe2O3 and Al2O3 in a quantity ratio range of Fe2O3 to Al2O3 between 80 to 20 and 40 to 60 wt.- %. Starting from an MgO content between 12 and 19.5 wt.- %, the respective mixed crystals have an Fe2O3 and Al2O3 content in a solid solution out of the limited ranges respectively indicated thereof, such that a total composition of 100% is obtained. In addition, the invention relates to a method for production of the elasticizing granulate and to the use thereof.
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公开(公告)号:US09809498B2
公开(公告)日:2017-11-07
申请号:US15103030
申请日:2014-10-21
IPC分类号: C04B38/00 , C04B35/043 , C04B35/03 , C04B35/047 , C04B35/101 , C04B35/12 , C04B35/18 , C04B35/20 , C04B35/44 , C04B35/443 , C04B35/48 , C04B35/565 , C04B35/626 , C04B35/634 , C04B35/64
CPC分类号: C04B35/043 , C04B35/03 , C04B35/0435 , C04B35/047 , C04B35/101 , C04B35/12 , C04B35/18 , C04B35/20 , C04B35/44 , C04B35/443 , C04B35/48 , C04B35/565 , C04B35/62695 , C04B35/63404 , C04B35/64 , C04B2235/3206 , C04B2235/3222 , C04B2235/3241 , C04B2235/3243 , C04B2235/3272 , C04B2235/3445 , C04B2235/349 , C04B2235/48 , C04B2235/5427 , C04B2235/5436 , C04B2235/5463 , C04B2235/5472 , C04B2235/602 , C04B2235/656 , C04B2235/77 , C04B2235/785 , C04B2235/963
摘要: A refractory, coarse ceramic product including at least one granular refractory material, has an open porosity of between 22 and 45 vol.-%, in particular of between 23 and 29 vol.-%, and a grain structure of the refractory material, wherein the medium grain size fraction with grain sizes of between 0.1 and 0.5 mm is 10 to 55 wt.-%, in particular 35 to 50 wt.-%, and wherein the remainder of the grain structure is a finest grain fraction with grain sizes of up to 0.1 mm and/or coarse-grain fraction with grain sizes of more than 0.5 mm.
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公开(公告)号:US11440847B2
公开(公告)日:2022-09-13
申请号:US16646409
申请日:2018-09-13
IPC分类号: C04B35/043 , C04B35/626 , C04B35/63 , C04B35/66 , C04B38/00
摘要: A method for producing a granular material from sintered magnesia by sintering of pressed articles, in particular pellets, from MgO powder, preferably from caustic MgO powder, and subsequent mechanical comminution of the pressed articles, the sintering being carried out in such a way that the granular material has a grain porosity (total porosity), according to DIN EN 993-1:1195-04 and DIN EN 993-18:1999-01, of from 15 to 38 vol %, preferably 20 to 38 vol %. Also, a batch for producing a coarse ceramic, refractory, shaped or unshaped product containing the porous sintered magnesia, to such a product produced from the batch and to a method for its production, to a lining, in particular a working casing and/or a backing, of a large-volume industrial furnace, the lining, in particular the working casing and/or the backing, having at least one such product, as well as to such an industrial furnace.
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