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319 条记录 (耗时 0.014 秒)

    Process for cleaning of a dispersion of dispersed particles
    81.
    发明授权
    Process for cleaning of a dispersion of dispersed particles 失效
    清洗分散颗粒分散体的方法

    公开(公告)号：US4043908A

    公开(公告)日：1977-08-23

    申请号：US666104

    申请日：1976-03-11

    申请人： Kelvin Roberts ,  Barbro Margareta Stenqvist

    发明人： Kelvin Roberts ,  Barbro Margareta Stenqvist

    IPC分类号： B01D21/01 ,  C02F1/52 ,  D21C5/02 ,  C02B1/20

    CPC分类号： D21C5/027 ,  Y02W30/648

    摘要： This invention pertains to a method for removing small impurity particles and dissolved substances from an aqueous dispersion or pulp slurry. The invention in particular pertains to a method for deinking of newsprint. In its most general aspect the invention relates to removing of dissolved substances, preferably organic substances and small impurity particles from an aqueous dispersion.

    摘要翻译： 本发明涉及一种从水分散体或纸浆中除去小杂质颗粒和溶解物质的方法。 本发明特别涉及新闻纸脱墨的方法。 在其最一般的方面，本发明涉及从水性分散体中除去溶解的物质，优选有机物质和小的杂质颗粒。

    Process for de-inking printed waste cellulosic fibrous material
    82.
    发明授权
    Process for de-inking printed waste cellulosic fibrous material 失效
    印刷废纤维素纤维材料脱墨方法

    公开(公告)号：US3932206A

    公开(公告)日：1976-01-13

    申请号：US473933

    申请日：1974-05-28

    申请人： Robert H. Illingworth ,  Frank W. Lorey

    发明人： Robert H. Illingworth ,  Frank W. Lorey

    IPC分类号： D21C5/02

    CPC分类号： D21C5/027 ,  Y02W30/648

    摘要： Waste printed, cellulosic fibrous material is deinked by using a biodegradable de-inking agent which is non-toxic to aquatic life, said agent comprising an ethoxylated aliphatic mono-ol having about 14-15 carbon atoms in the aliphatic chain and about 8-12 ethyleneoxy units per mole of said mono-ol or an ethoxylated aliphatic di-ol having from 14 to 30 carbon atoms in the aliphatic chain and from 8 to 24 ethyleneoxy units per mole of said di-ol wherein the hydroxy groups in the di-ol are present on adjacent non-terminal carbon atoms in the aliphatic chain.

    摘要翻译： 废纸，纤维素纤维材料通过使用对水生生物无毒的可生物降解脱墨剂脱墨，所述试剂包含在脂族链中具有约14-15个碳原子的乙氧基化脂族单醇和约8-12 每摩尔所述单醇的乙烯氧基单元或脂族链中具有14至30个碳原子的乙氧基化脂族二醇和每摩尔所述二醇的8至24个乙烯氧基单元，其中二醇中的羟基 存在于脂族链中相邻的非末端碳原子上。