金融界2025年5月3日消息，国家知识产权局信息显示，雷法福斯有限责任公司申请一项名为“水泥组合物及用于生产水泥构件的方法”的专利，公开号CN119907784A，申请日期为2023年8月。
专利摘要显示，本发明涉及一种耐火水泥组合物，包括：‑比例为35至70wt.％的具有至少0.5mm的粒度的至少一种耐火原材料的粗粒部分；‑比例为15至30wt.％的具有小于0.5mm的粒度的至少一种耐火原材料的细粒部分；‑比例为0至20wt.％的具有小于0.1mm的粒度的细粒煅烧氧化铝；‑比例为0至2wt.％的具有小于0.1mm的粒度的细粒氧化镁粉末；‑比例为2至7wt.％的具有小于100μm的粒度的细粒铝金属粉末；‑比例为2至8wt.％的具有粒度小于100μm的至少一种细粒碳载体，其中所述至少一种细粒碳载体含有或是炭黑和/或石墨；‑比例为4至20wt.％的水性胶体硅溶胶悬浮液，其中所述硅溶胶悬浮液含有固体比例为30至50wt.％的无定形纳米级二氧化硅颗粒。本发明还涉及一种用于由耐火水泥组合物生产烧制水泥构件的方法。
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