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公开(公告)号：US10294613B2
公开(公告)日：2019-05-21
申请号：US15659178
申请日：2017-07-25
Applicant: GP Cellulose GmbH
Inventor： Arthur J. Nonni , Charles E. Courchene , Philip R. Campbell , Steven C. Dowdle , Joel M. Engle , Christopher M. Slone
Abstract: A bleached softwood kraft pulp fiber with high alpha cellulose content and increased brightness and whiteness is provided. Methods for making the kraft fiber and products made from it are also described.
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2.发明申请
公开(公告)号：US20190136450A1
公开(公告)日：2019-05-09
申请号：US16239865
申请日：2019-01-04
Applicant: GP CELLULOSE GmbH
Inventor： Arthur J. NONNI , Charles E. COURCHENE , Blair Roderick CARTER
Abstract: A pulp fiber with an enhanced carboxyl content resulting in improved antimicrobial, anti-yellowing and absorptive properties. Methods for making the kraft pulp fiber and products made from it are also described.
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公开(公告)号：US20170247833A1
公开(公告)日：2017-08-31
申请号：US15067760
申请日：2016-03-11
Applicant: WEYERHAEUSER NR COMPANY
Inventor： Mengkui Lou
CPC classification number: D21C9/005 , C08B15/10 , C08H8/00 , D21C9/1063 , D21C9/147 , D21C9/18 , D21H13/04
Abstract: A pulp in accordance with a particular embodiment includes crosslinked cellulose fibers. The pulp can have high brightness, reactivity, and intrinsic viscosity. The pulp, therefore, can be well suited for use as a precursor in the production of low-color, high-viscosity cellulose derivatives. A method in accordance with a particular embodiment of the present technology includes forming a pulp from a cellulosic feedstock, bleaching the pulp, crosslinking cellulose fibers within the pulp while the pulp has a high consistency, and drying the pulp. The bleaching process can reduce a lignin content of the pulp to less than or equal to 0.09% by oven-dried weight of the crosslinked cellulose fibers. Crosslinking the cellulose fibers can include exposing the cellulose fibers to a glycidyl ether crosslinker having two or more glycidyl groups and a molecular weight per epoxide within a range from 140 to 175.
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公开(公告)号：US08961740B2
公开(公告)日：2015-02-24
申请号：US13703269
申请日：2011-06-10
Applicant: Ventzislav H. Kirov , Namhee Shin
Inventor： Ventzislav H. Kirov , Namhee Shin
CPC classification number: D21C9/147 , D21C3/00 , D21C3/02 , D21C3/026 , D21C3/263 , D21C9/02 , D21D1/20 , D21H11/02
Abstract: A method to make pulp adapted for forming a corrugated medium, the method includes: cooking chips in a cooking vessel using a caustic carbonated pulping soda/caustic (SC) cooking liquor injected into the cooking vessel; fiberizing the chips discharged from the cooking vessel to form a pulp, and removing lignin from the pulp or oxidizing lignin in the pulp by injecting oxygen (O2) into the fiberized pulp.
Abstract translation: 一种制备适于形成波纹状介质的纸浆的方法，所述方法包括：使用注入到所述烹饪容器中的苛性碳酸化制浆苏打/苛性（SC）蒸煮液将切片放入烹饪容器中; 使从烹饪容器排出的碎屑纤维化以形成纸浆，并通过将氧（O 2）注入到纤维化纸浆中，从纸浆中除去木质素或在纸浆中氧化木质素。
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公开(公告)号：US08900408B2
公开(公告)日：2014-12-02
申请号：US12746887
申请日：2008-12-05
Applicant: Kiyoshi Yoshida , Tetsuo Koshitsuka , Eiko Kuwabara , Takashi Ishii
Inventor： Kiyoshi Yoshida , Tetsuo Koshitsuka , Eiko Kuwabara , Takashi Ishii
CPC classification number: D21C9/142 , D21C9/1036 , D21C9/147 , D21C9/153 , D21C9/163
Abstract: Provided is a process for producing bleached pulp, including subjecting unbleached pulp, which is obtained by cooking a lignocellulose substance, to alkali-oxygen bleaching treatment and then subjecting the alkali-oxygen bleached pulp to chlorine-free bleaching treatment including chlorine dioxide treatment, wherein in at least one chlorine dioxide treatment stage in which the chlorine dioxide treatment is performed, monopersulfuric acid is used in combination. The amount of chlorine dioxide to be used is reduced and the color reversion resistance of the bleached pulp is improved by this process.
Abstract translation: 本发明提供一种漂白纸浆的制造方法，其特征在于，将通过蒸煮木质纤维素物质得到的未漂白的纸浆进行碱氧漂白处理，然后对碱性氧漂白纸浆进行无氯漂白处理，包括二氧化氯处理，其中 在进行二氧化氯处理的至少一个二氧化氯处理阶段中，组合使用单过硫酸。 通过该方法可以减少二氧化氯的使用量，并且改善漂白纸浆的耐逆转性。
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公开(公告)号：US08771465B2
公开(公告)日：2014-07-08
申请号：US13143809
申请日：2009-12-09
Applicant: Hongfa Li , Mingxin Song , Jianmin Wang , Yanjin Bi , Jinxiang Xu , Zhongcheng He
Inventor： Hongfa Li , Mingxin Song , Jianmin Wang , Yanjin Bi , Jinxiang Xu , Zhongcheng He
CPC classification number: D21H11/12 , D21C3/02 , D21C3/14 , D21C3/222 , D21C5/00 , D21C9/02 , D21C9/147 , D21H27/00 , D21H27/10
Abstract: A raw paper prepared by a mixed pulp including straw pulp, which can be used to prepare textbooks, writing papers and office paper with good performance, and the producing method of said raw paper are provided. The weight proportion of the straw pulp in the mixed stock is from 10% to 100%, and the straw pulp has a hardness of KMnO4 value 10-17, an average fiber length of 0.1-2.5 mm, a tensile index of 23-57 Nm/g, a tearing index of 3.0-6.0 mN·m2/g, a folding endurance index of 2-6 kPa·m2/g and a whiteness of 28-50%. Either, the L value of the hue of said raw paper is 65-95, a value is 0-5, and b value is 0-40. The KMnO4 value of hardness of the pulp after oxygen delignification is 10-14. The method includes: adding grass-series raw material into a digester, then adding cooking liquor, heating the cooking liquor to 100-200°, pressurizing to 0.3-0.9 MPa, cooking for 150-250 min, extruding the pulp, washing and obtaining the straw pulp. The amount of the ammonium sulfite of the cooking reagent is 5-20% of the absolute dry material, and the amount of the sodium hydroxide is 0-15% of the absolute dry material, the liquor ratio is 1:2-15.
Abstract translation: 提供了可以用于制备具有良好性能的教科书，书写纸和办公用纸的混合纸浆的原纸，包括草浆，以及所述原纸的制造方法。 混合浆中秸秆浆的重量比为10％〜100％，秸秆浆的KMnO4硬度为10-17，平均纤维长度为0.1〜2.5mm，拉伸指数为23〜57 Nm / g，撕裂指数为3.0-6.0mN·m 2 / g，折叠耐力指数为2-6kPa·m 2 / g，白度为28〜50％。 或者，所述原纸的色调的L值为65-95，值为0-5，b值为0-40。 氧脱木质后纸浆的KMnO4值为10-14。 该方法包括：将草料原料加入到蒸煮器中，然后加入蒸煮液，加热蒸煮液至100-200°，加压至0.3-0.9MPa，蒸煮150-250分钟，挤出纸浆，洗涤和获得 草浆。 烹饪试剂的亚硫酸铵的量为绝对干物质的5-20％，氢氧化钠的量为绝对干物质的0-15％，浴比为1:2-15。
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7.发明申请Fully Closed, Zero Discharge, Clean Oxidizing Pulping Technology and Process 审中-公开全封闭，零排放，清洁氧化制浆技术和工艺
公开(公告)号：US20070272377A1
公开(公告)日：2007-11-29
申请号：US10583763
申请日：2003-12-25
Applicant: Xiuquan Mei , Laisu Xie
Inventor： Xiuquan Mei , Laisu Xie
Abstract: The aim of the present invention is to provide a close-loop, zero discharge and clean oxidation pulping method and technology. In accordance with present invention, it takes advantage of active oxygen free radical generated by reduction reaction of molecular oxygen in process reactor to transform and separate lignin to change chromophoric group in the intercellular space and obtain paper pulp. The conventional pulping technologies which use harmful polluting chemicals such as acid, alkaline, chlorine, anthraquinone and so on are basically changed in the present invention. The cooking and bleaching process, generating severe pollution, can be avoided. The abundant yearly grown fiber materials can be utilized in this process, and water and energy can be saved. The present invention can cut down production cost and have excellent social, economic and environmental performance.
Abstract translation: 本发明的目的是提供一种闭环，零排放和清洁的氧化制浆方法和技术。 根据本发明，利用在工艺反应器中分子氧的还原反应产生的活性氧自由基来转化和分离木质素以改变细胞间隙中的发色团并获得纸浆。 在本发明中，基本上改变了使用有害污染化学物质如酸，碱，氯，蒽醌等的常规制浆技术。 可以避免烹饪和漂白过程，产生严重污染。 在这个过程中可以利用丰富的年生纤维材料，节省水和能源。 本发明可以降低生产成本，具有良好的社会，经济和环境绩效。
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公开(公告)号：US20050194111A1
公开(公告)日：2005-09-08
申请号：US11121217
申请日：2005-05-03
Applicant: Prasad Duggirala , Sergey Shevchenko , Kristine Salmen
Inventor： Prasad Duggirala , Sergey Shevchenko , Kristine Salmen
CPC classification number: D21C9/1042 , D21C3/22 , D21C9/147
Abstract: A method to enhance brightness in Chemical and Mechanical pulps comprising adding an organic sulfide chelant is described and claimed. A method to enhance delignification in a Chemical pulp comprising adding an organic sulfide chelant is also described and claimed.
Abstract translation: 描述并要求保护包括添加有机硫化物螯合剂的化学和机械纸浆中的亮度提高方法。 还描述并要求保护增加化学纸浆中脱木质素的方法，包括加入有机硫化物螯合剂。
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公开(公告)号：US6059925A
公开(公告)日：2000-05-09
申请号：US849521
申请日：1997-08-08
Applicant: Anna Tigerstrom , Ulf Persson
Inventor： Anna Tigerstrom , Ulf Persson
CPC classification number: D21C9/1057 , D21C11/0071 , D21C9/147 , D21C9/153
Abstract: A method of treating cellulose pulp which is subjected to an oxygen-delignification stage (3), a washing stage (4), an ozone-bleaching stage (1) and a further bleaching stage, for instance a peroxide-bleaching stage (7). A gas mixture of oxygen and ozone is delivered to the ozone-bleaching stage (1). The used gas mixture is regenerated, i.e. freed from carbon dioxide, and returned to the oxygen-delignification stage (3) and/or to a bleaching stage (7).
Abstract translation: PCT No.PCT / SE95 / 01296 Sec。 371日期：1997年8月8日 102（e）日期1997年8月8日PCT 1995年11月2日PCT PCT。 WO96 / 15318 PCT公开号 日期1996年5月23日一种处理脱氧脱氧阶段（3），洗涤阶段（4），臭氧漂白阶段（1）和进一步漂白阶段的纤维素纸浆的方法，例如过氧化物漂白 阶段（7）。 将氧气和臭氧的气体混合物输送到臭氧漂白级（1）。 废气混合物被再生，即从二氧化碳中除去，并返回到脱氧脱氧阶段（3）和/或漂白阶段（7）。
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10.发明授权
公开(公告)号：US6019870A
公开(公告)日：2000-02-01
申请号：US737684
申请日：1997-01-17
Applicant: Michel Devic , Jean-Pierre Schirmann
Inventor： Michel Devic , Jean-Pierre Schirmann
CPC classification number: D21C9/1026 , D21C9/1042 , D21C9/163
Abstract: A process of dignifying lignocellulosic pulp with oxygen followed by treatment of the delignified pulp with a chelating agent, followed by washing, followed by treatment with hydrogen peroxide at an alkaline pH in the presence of an alkali metal silicate at a temperature greater than 100.degree. C. and a pressure greater than 1.5 times the saturated vapor pressure.
Abstract translation: PCT No.PCT / FR95 / 00494 Sec。 371日期1997年1月17日 102（e）日期1997年1月17日PCT提交1995年4月14日PCT公布。 出版物WO95 / 31599 日期1995年11月23日一种使木质纤维素纸浆氧化的方法，然后用螯合剂处理脱木素纸浆，然后洗涤，随后在碱性pH下在碱金属硅酸盐存在下用过氧化氢处理温度 大于100℃，压力大于饱和蒸汽压力的1.5倍。
