Process for Deinking Waste Paper
    1.
    发明申请
    Process for Deinking Waste Paper 失效
    废纸脱墨工艺

    公开(公告)号:US20070246175A1

    公开(公告)日:2007-10-25

    申请号:US11570452

    申请日:2005-06-16

    IPC分类号: D21C5/02

    CPC分类号: D21C5/025 Y02W30/648

    摘要: The present invention relates to a process for deinking waste paper comprising treating the waste paper with a peroxide compound in an aqueous alkaline medium in the presence of a first polymer (A) comprising a Ca-binding polymer in the form of a polycarboxylate polymer and a second polymer (B) comprising a poly-alfa-hydroxyacrylic acid or a salt thereof or the corresponding polylactone, said process additionally comprising treating the waste paper with at least one non-ionic surfactant or with at least one combination of a non-ionic surfactant and a fatty acid or a salt thereof to promote ink detachment and/or ink removal.

    摘要翻译: 本发明涉及一种废纸脱墨方法,包括在含有多羧酸酯聚合物形式的Ca-结合聚合物的第一聚合物(A)存在下,在含水碱性介质中用过氧化物处理废纸, 第二聚合物(B),其包含聚α-羟基丙烯酸或其盐或相应的聚内酯,所述方法另外包括用至少一种非离子表面活性剂或至少一种非离子表面活性剂的组合处理废纸 和脂肪酸或其盐以促进油墨分离和/或油墨去除。

    Composition and Process for the Treatment of Fibre Material
    2.
    发明申请
    Composition and Process for the Treatment of Fibre Material 有权
    纤维材料处理的组成和工艺

    公开(公告)号:US20100139875A1

    公开(公告)日:2010-06-10

    申请号:US12523381

    申请日:2008-01-31

    IPC分类号: D21C5/02 C08L37/00 D21C3/00

    摘要: The invention relates to a stabilizing composition comprising following components (A) a polymer having following formula wherein R1 is a hydrogen atom or an alkyl group containing 1 to 12 carbon atoms, R2 is —COOM or —CH2COOM, M is a hydrogen atom, an alkali metal ion, an alkaline earth metal ion, an ammonium ion or a mixture thereof, n, m and k are molar ratios of corresponding monomers, wherein n is 0 to 0.95, m is 0.05 to 0.9, and k is 0 to 0.8, and (n+m+k) equals 1, and the weight average molecular weight is between 500 and 20,000,000 g/mol, (B) a chelating agent, (C) a poly-alpha-hydroxyacrylic acid or an alkaline salt thereof or the corresponding polylactone thereof, and (D) optionally a polycarboxylic acid polymer or an alkaline salt thereof. The invention also relates to a process for the treatment of a fiber material.

    摘要翻译: 本发明涉及一种稳定组合物,其包含以下组分(A)具有下式的聚合物:其中R 1是氢原子或含有1至12个碳原子的烷基,R 2是-COOM或-CH 2 COOM,M是氢原子, 碱金属离子,碱土金属离子,铵离子或其混合物,n,m和k是相应单体的摩尔比,其中n为0至0.95,m为0.05至0.9,k为0至0.8, 和(n + m + k)等于1,重均分子量在500至20,000,000g / mol之间,(B)螯合剂,(C)聚-α-羟基丙烯酸或其碱式盐或 相应的聚内酯,和(D)任选的多元羧酸聚合物或其碱式盐。 本发明还涉及一种处理纤维材料的方法。

    New Composition and Process for the Treatment of Fibre Material
    3.
    发明申请
    New Composition and Process for the Treatment of Fibre Material 有权
    纤维材料处理的新组成和工艺

    公开(公告)号:US20080264584A1

    公开(公告)日:2008-10-30

    申请号:US11596140

    申请日:2005-05-10

    IPC分类号: D21C5/02 C08G63/00 D21C3/20

    摘要: The present invention relates to a stabilizing composition comprising following components (A) a polymer having following formula wherein R1 is a hydrogen atom or an alkyl group containing 1 to 12 carbon atoms, R2 is —COOM or —CH2COOM, M is a hydrogen atom, an alkali metal ion, an alkaline earth metal ion, an ammonium ion or a mixture thereof, n, m and k are molar ratios of corresponding monomers, wherein n is 0 to 0.95, m is 0.05 to 0.9, and k is 0 to 0.8, and (n+m+k) equals 1, and the weight average molecular weight is between 500 and 20,000,000 g/mol, (B) a chelating agent, and (C) an alkaline earth metal compound. The invention also relates to a process for the treatment of a fibre material.

    摘要翻译: 本发明涉及稳定组合物,其包含以下组分(A)具有下式的聚合物:其中R 1是氢原子或含有1至12个碳原子的烷基,R 2, N是-COOM或-CH 2 COOM,M是氢原子,碱金属离子,碱土金属离子,铵离子或它们的混合物,n,m和k是 相应单体的摩尔比,其中n为0至0.95,m为0.05至0.9,k为0至0.8,(n + m + k)等于1,重均分子量为500至20,000,000g / mol,(B)螯合剂,和(C)碱土金属化合物。 本发明还涉及一种处理纤维材料的方法。

    Method for Reducing the Extractives Content of High-Yield Pulps and Method for Producing Bleached High-Yield Pulps
    4.
    发明申请
    Method for Reducing the Extractives Content of High-Yield Pulps and Method for Producing Bleached High-Yield Pulps 审中-公开
    降低高产量纸浆提取物含量的方法及生产漂白高产量纸浆的方法

    公开(公告)号:US20070272378A1

    公开(公告)日:2007-11-29

    申请号:US10590297

    申请日:2005-02-23

    IPC分类号: D21C9/08 D21C9/16

    CPC分类号: D21C9/08 D21C9/1036 D21C9/163

    摘要: The invention relates to a method for reducing the content of extractives of a high-yield pulp in a peroxide bleaching stage, said stage including peroxide bleaching and a subsequent dewatering or washing, said method comprising contacting the pulp in the peroxide bleaching with an organic stabilizer and in or after the peroxide bleaching with a surfactant, and thereafter subjecting the bleached pulp to said dewatering or washing for removing extractives along with the aqueous phase. The invention also relates to a method for producing bleached high-yield pulp.

    摘要翻译: 本发明涉及一种降低过氧化物漂白阶段高产量纸浆提取物含量的方法,所述方法包括过氧化物漂白和随后的脱水或洗涤,所述方法包括使纸浆在过氧化物漂白中与有机稳定剂 并且在用表面活性剂进行过氧化物漂白之后或之后,然后将漂白的纸浆与水相一起进行脱水或洗涤以除去萃取物。 本发明还涉及一种生产漂白的高产量纸浆的方法。

    Bleaching of cellulosic fibre material with peroxide using polymers as a stabiliser
    5.
    发明申请
    Bleaching of cellulosic fibre material with peroxide using polymers as a stabiliser 有权
    使用聚合物作为稳定剂漂白纤维素纤维材料与过氧化物

    公开(公告)号:US20060144534A1

    公开(公告)日:2006-07-06

    申请号:US10541775

    申请日:2004-01-09

    IPC分类号: D21C9/16 D06L3/02

    CPC分类号: D21C9/1042 D21C9/163

    摘要: The present invention relates to a process for bleaching a cellulosic fibre material with a peroxide compound in an aqueous alkaline medium, comprising a bleaching step wherein: a) a first polymer (A) comprising a homopolymer of acrylic acid, methacrylic acid or maleic acid, or a copolymer of acrylic acid and/or methacrylic acid with an unsaturated dicarboxylic acid, and a solution of a second polymer (B) comprising a poly-alfa-hydroxyacrylic acid or a salt thereof, are added to a cellulosic fibre material, and b) thereafter adding a peroxide compound and an alkaline substance and carrying out the bleaching.

    摘要翻译: 本发明涉及一种在含水碱性介质中用过氧化物漂白纤维素纤维材料的方法,包括漂白步骤,其中:a)包含丙烯酸,甲基丙烯酸或马来酸的均聚物的第一聚合物(A) 或丙烯酸和/或甲基丙烯酸与不饱和二羧酸的共聚物,以及包含聚α-羟基丙烯酸或其盐的第二聚合物(B)的溶液加入到纤维素纤维材料中,b ),然后加入过氧化物和碱性物质并进行漂白。

    Process For The Treatment Of Fibre Material And New Composition
    6.
    发明申请
    Process For The Treatment Of Fibre Material And New Composition 有权
    纤维材料和新成分的处理工艺

    公开(公告)号:US20080035287A1

    公开(公告)日:2008-02-14

    申请号:US10587564

    申请日:2005-02-23

    IPC分类号: D21C9/10 D21C9/16

    摘要: The invention relates to a process for the treatment of a fibre material comprising the step of contacting the fibre material in an aqueous medium with a chelating agent and a polymer having following general formula wherein R1 is a hydrogen atom or an alkyl group containing 1 to 12 carbon atoms, R2 is —COOM or —CH2COOM, M is a hydrogen atom, an alkali metal ion, an alkaline earth metal ion, an ammonium ion or a mixture thereof, n, m and k are molar ratios of corresponding monomers, wherein n is 0 to 0.95, m is 0.05 to 0.9, and k is 0 to 0.8, and (n+m+k) equals 1, and the weight average molecular weight is between 500 and 20,000,000 g/mol. The invention also relates to a composition comprising a chelating agent and the above polymer.

    摘要翻译: 本发明涉及一种纤维材料的处理方法,包括使水性介质中的纤维材料与螯合剂和具有以下通式的聚合物接触的步骤:其中R 1是氢原子 或含有1至12个碳原子的烷基,R 2是-COOM或-CH 2 COOM,M是氢原子,碱金属离子,碱土金属 金属离子,铵离子或其混合物,n,m和k是相应单体的摩尔比,其中n为0至0.95,m为0.05至0.9,k为0至0.8,和(n + m + k )等于1,重均分子量在500至20,000,000g / mol之间。 本发明还涉及包含螯合剂和上述聚合物的组合物。

    Polymer composition for peroxide bleaching of cellulosic fibre material and processes for peroxide bleaching
    7.
    发明申请
    Polymer composition for peroxide bleaching of cellulosic fibre material and processes for peroxide bleaching 有权
    用于纤维素纤维材料的过氧化物漂白的聚合物组合物和用于过氧化物漂白的方法

    公开(公告)号:US20060131539A1

    公开(公告)日:2006-06-22

    申请号:US10538074

    申请日:2004-01-09

    IPC分类号: C11D3/39

    摘要: The present invention relates to a polymer composition for peroxide bleaching of a cellulosic fibre material, said composition being in the form of a stable aqueous polymer solution obtained by bringing in an aqueous medium a first polymer (A) comprising a partly or totally acidic homopolymer of acrylic acid, methacrylic acid or maleic acid, or a copolymer of acrylic acid and/or methacrylic acid with an unsaturated dicarboxylic acid, into contact with a second polymer (B) comprising a po9lylactone of a poly-alfa-hydroxyacrylic acid in solid form or as a moist powder or as a slurry, said polymer solution having a pH of at most 8, The invention also relates to peroxide bleaching processes.

    摘要翻译: 本发明涉及一种用于纤维素纤维材料的过氧化物漂白的聚合物组合物,所述组合物是通过将水性介质引入包含部分或全部酸性均聚物的第一聚合物(A)而获得的稳定的聚合物水溶液的形式, 丙烯酸,甲基丙烯酸或马来酸,或丙烯酸和/或甲基丙烯酸与不饱和二羧酸的共聚物与第二聚合物(B)接触,所述第二聚合物(B)包含固体形式的聚α-羟基丙烯酸的聚乙二醇内酯,或 作为湿粉末或浆料,所述聚合物溶液的pH值至多为8,本发明还涉及过氧化物漂白方法。

    Delignification of chemical pulp with peroxide in the presence of a
silicomolybdenic acid compound
    8.
    发明授权
    Delignification of chemical pulp with peroxide in the presence of a silicomolybdenic acid compound 失效
    在硅钼酸化合物存在下,用过氧化物脱木质素

    公开(公告)号:US6165318A

    公开(公告)日:2000-12-26

    申请号:US750659

    申请日:1997-02-27

    IPC分类号: D21C9/10 D21C9/16

    CPC分类号: D21C9/1036 D21C9/16

    摘要: A process for the delignification of a chemical pulp, such as a sulfate or sulfite pulp, in which process the pulp is treated with a peroxide and/or a peracid in the presence of an activating Ti-, V- or Cr-group transition metal, such as molybdenum, vanadium or tungsten. A compound containing at least one heteroatom, such as Si, P or B, which is capable of forming a heteropolyacid with the activating transition metal, is added to the pulp. The feeding of the activating transition metal and the heteroatom into the pulp may take place in one and the same alkaline solution, for example introduced into the solution or in the form of a compound of the silicomolybdenic acid type, formed in the solution. The peroxide and/or peracid treatment may constitute part of the bleaching sequence, which contains as potential other treatment steps, for example, a treatment with oxygen and a chelation for the removal of heavy metals such as iron, manganese and/or copper.

    摘要翻译: PCT No.PCT / FI95 / 00352 Sec。 371日期1997年2月27日 102(e)日期1997年2月27日PCT归档1995年6月19日PCT公布。 公开号WO95 / 35407 日期1995年12月28日一种化学纸浆脱木质素的方法,例如硫酸盐或亚硫酸盐纸浆,其中在活化的Ti-,V-或它们的存在下,用过氧化物和/或过酸处理纸浆 Cr族过渡金属,如钼,钒或钨。 将含有至少一个能够与活化过渡金属形成杂多酸的杂原子如Si,P或B的化合物加入到纸浆中。 将活化的过渡金属和杂原子进料到纸浆中可以在同一种碱溶液中进行,例如在溶液中形成的溶液或者以溶液中形成的硅钼酸型化合物的形式。 过氧化物和/或过酸处理可以构成漂白序列的一部分,其包含作为潜在的其它处理步骤,例如用氧的处理和用于去除重金属如铁,锰和/或铜的螯合。