发明名称 |
Process for separating mineral wool fibers from nonfibrous materials |
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.
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申请公布号 |
US4254823(A) |
申请公布日期 |
1981.03.10 |
申请号 |
US19770791456 |
申请日期 |
1977.04.27 |
申请人 |
BEROL KEMI AB |
发明人 |
CEDERQVIST, NILS G.;HELLSTEN, KARL M. E.;HENRIKSSON, KERSTIN E.;WAAG, LARS A. S. |
分类号 |
B01F17/18;B01F17/28;C03C25/24;C04B24/12;C04B30/02;(IPC1-7):D21B1/00 |
主分类号 |
B01F17/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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