利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

80 条记录 (耗时 0.011 秒)

    Deinking agent and method of deinking through flotation using the deinking agent
    26.
    发明授权
    Deinking agent and method of deinking through flotation using the deinking agent 失效
    脱墨剂和脱墨剂脱墨方法

    公开(公告)号：US5840157A

    公开(公告)日：1998-11-24

    申请号：US256773

    申请日：1994-07-22

    申请人： Masaaki Hagiwara ,  Yoshie Hirakouchi

    发明人： Masaaki Hagiwara ,  Yoshie Hirakouchi

    IPC分类号： B03D1/008 ,  D21C5/02

    CPC分类号： D21C5/027 ,  B03D1/0043 ,  B03D1/008 ,  Y02W30/648 ,  Y10S162/03

    摘要： A deinking agent comprising a compound represented by the following general formula I is herein provided: R.sup.1 O--(PO)m--(EO)n--(XO)k--R.sup.2 (I) (wherein R.sup.1 represents an alkyl or alkenyl group having 12 to 22 carbon atoms; R.sup.2 represents a hydrogen atom or an acyl group having 2 to 24 carbon atoms; PO, EO and XO represent a propylene oxide unit, an ethylene oxide unit and an alkylene oxide unit having not less than 3 cabon atoms, respectively; m=1.about.8; n=10.about.40; and k is such a number that the number of total carbon atoms present in the polymerized XO unit ranges from 3 to 120; the PO and EO in Formula (I) being added through block-addition). The use of the deinking agent in the deinking methods, in particular, the flotation method permits the preparation of high quality reclaimed pulp having high brightness and a low content of residual ink and also ensures stable operations for the methods.

    摘要翻译： PCT No.PCT / JP94 / 00200 Sec。 371日期1994年7月22日 102（e）日期1994年7月22日PCT 1994年2月10日PCT PCT。 第WO94 / 19532号公报 日本公报1994年9月1日提供了包含下列通式I所示化合物的脱墨剂：R1O-（PO）m-（EO）n-（XO）k-R2（I）（其中R1表示烷基或 具有12-22个碳原子的烯基; R2表示氢原子或具有2至24个碳原子的酰基; PO，EO和XO表示环氧丙烷单元，环氧乙烷单元和不小于3的环氧烷单元 分别为m = 1的差分8; n = 10的差分40; k为存在于聚合的XO单元中的总碳原子数为3至120的数字;式（I）中的PO和EO ）通过嵌段加成添加）。 在脱墨方法，特别是浮选方法中使用脱墨剂可以制备具有高亮度和低含量残留油墨的高品质回收纸浆，并且还确保了该方法的稳定操作。

    Method for controlling froth and reducing stickies in the flotation process for deinking waste paper using a froth moderating agent
    27.
    发明授权
    Method for controlling froth and reducing stickies in the flotation process for deinking waste paper using a froth moderating agent 失效
    使用泡沫缓和剂在废纸脱墨过程中控制泡沫和减少粘性的方法

    公开(公告)号：US5718801A

    公开(公告)日：1998-02-17

    申请号：US289072

    申请日：1994-08-11

    申请人： Chin Li ,  David A. Longhini ,  Bhima R. Vijayendran

    发明人： Chin Li ,  David A. Longhini ,  Bhima R. Vijayendran

    IPC分类号： B03D1/008 ,  D21B1/32 ,  D21C5/02

    CPC分类号： D21C5/027 ,  B03D1/008 ,  D21B1/325 ,  Y02W30/646 ,  Y02W30/648 ,  Y10S162/03

    摘要： Describes flotation deinking of secondary fiber using a froth moderating agent, a composition of the froth moderating agent with flotation deinking chemicals, and reducing the amount of stickies in separated secondary fiber. The froth moderating agent is selected from the group consisting of: (a) nonionic surfactant material represented by the formula: R--C.sub.6 H.sub.4 O--(C.sub.2 H.sub.4 O).sub.m --(C.sub.3 H.sub.6 O).sub.n --(C.sub.4 H.sub.8 O).sub.p --R.sup.1 wherein R is an aliphatic hydrocarbon group containing from about 5 to 20 carbon atoms, R.sup.1 is selected from the group consisting of chloro, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.5 alkoxy and phenoxy, m, n, and p are each a number of between 0 and about 50, and the sum of m, n, and p is between about 1 and 50; (b) fatty acid esters of sorbitan; (c) certain alkoxylated fatty acid esters of sorbitan; (d) polypropylene glycol being at least 50 weight percent soluble in water; and (e) a combination of at least two of the materials selected from the group consisting of (a), (b), (c) and (d). Also described is the use of a froth controlling amount of nonionic surfactant material (a) alone or in combination with flotation deinking chemicals or other froth moderating agents in reducing the amount of stickies and enhancing the removal of electrostatic inks in the flotation deinking process.

    摘要翻译： 描述了使用泡沫缓和剂的二次纤维的浮选脱墨，浮选脱墨化学品的泡沫缓和剂的组成，以及减少分离的次级纤维中的粘合剂的量。 泡沫调节剂选自：（a）由式R-C6H4O-（C2H4O）m-（C3H6O）n-（C4H8O）p-R1表示的非离子表面活性剂物质，R是含有 约5至20个碳原子，R 1选自氯，C 1 -C 3烷基，C 1 -C 5烷氧基和苯氧基，m，n和p各自为0至约50，并且总和 的m，n和p在约1和50之间; （b）脱水山梨糖醇的脂肪酸酯; （c）脱水山梨醇的某些烷氧基化脂肪酸酯; （d）可溶于水的至少50重量％的聚丙二醇; 和（e）选自（a），（b），（c）和（d）中的至少两种材料的组合。 还描述了在浮选脱墨工艺中单独或与浮选脱墨化学品或其它泡沫调节剂组合使用泡沫控制量的非离子表面活性剂材料（a）来减少粘性物质的量和增强静电油墨的去除。

    Anionic sulfonate surfactants in the washing and pulping operation
    28.
    发明授权
    Anionic sulfonate surfactants in the washing and pulping operation 失效
    阴离子磺酸盐表面活性剂在洗涤和制浆操作中

    公开(公告)号：US5464502A

    公开(公告)日：1995-11-07

    申请号：US132076

    申请日：1993-10-05

    申请人： Jacqueline K. Pease

    发明人： Jacqueline K. Pease

    IPC分类号： D21C9/00 ,  D21C9/02

    CPC分类号： D21C9/005 ,  D21C9/02 ,  Y10S162/03

    摘要： A method for enhancing pulp washing efficiency is disclosed. An anionic sulfonate surfactant is added within the washing or pulping operation to enhance the removal of lignin and spent cooking chemicals from pulp.

    摘要翻译： 公开了一种提高纸浆清洗效率的方法。 在洗涤或制浆操作中加入阴离子磺酸盐表面活性剂，以增强从纸浆中除去木质素和废弃的烹饪化学品。

    Process for producing kraft pulp for paper using nonionic surface active agents to improve pulp yield
    29.
    发明授权
    Process for producing kraft pulp for paper using nonionic surface active agents to improve pulp yield 失效
    使用非离子表面活性剂生产用于纸的牛皮纸浆的方法以提高纸浆产率

    公开(公告)号：US4952277A

    公开(公告)日：1990-08-28

    申请号：US354982

    申请日：1989-05-19

    申请人： Cheng-I Chen ,  Theresa D. Hancock

    发明人： Cheng-I Chen ,  Theresa D. Hancock

    IPC分类号： D21C3/00 ,  D21C3/02 ,  D21C3/22

    CPC分类号： D21C3/02 ,  D21C3/222 ,  Y10S162/03

    摘要： A process for making paper and linerboard, employing certain nonionic surface active agents to increase the yield of kraft pulping. The surface active agents having the structural formula ##STR1## where n is an integer from 8 to 12, and x is a positive integer from 1 to about 100, the surface active agent being present in the cooking liquor in an amount effective to increase the yield of pulp.

    摘要翻译： 使用某些非离子表面活性剂来增加硫酸盐浆制浆的产量的纸和纸板的制造方法。 具有结构式为“IMAGE”的表面活性剂，其中n为8至12的整数，x为1至约100的正整数，表面活性剂以有效增加蒸煮液的量存在于蒸煮液中 纸浆产量。