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1.
公开(公告)号:US4254823A
公开(公告)日:1981-03-10
申请号:US791456
申请日:1977-04-27
CPC分类号: C04B30/02 , C03C25/246 , C04B24/12
摘要: A process is provided for the separation of nonfibrous material from mineral wool fibers which comprises dispersing the fibers in an aqueous solution comprising a surfactant having at least one hydrophobic group containing at least eight carbon atoms and at least one cationic hydrophilic group having at least one nitrogen or sulfur atom, such as a quaternary ammonium surfactant. The fibrous material is dispersible in the surfactant solution, while the nonfibrous material is not and consequently can be separated by centrifuging or settling and decantation.
摘要翻译: 提供了一种用于将非纤维材料与矿棉纤维分离的方法,其包括将纤维分散在包含具有至少一个含有至少8个碳原子的疏水基团的表面活性剂和至少一种具有至少一个氮原子的阳离子亲水基团的水溶液中 或硫原子,例如季铵表面活性剂。 纤维材料可分散在表面活性剂溶液中,而非纤维材料不是,因此可以通过离心或沉降和倾析分离。