CN1940178A - 用阳离子纳米颗粒在造纸生产过程中去除胶体和可溶性物质 - Google Patents

用阳离子纳米颗粒在造纸生产过程中去除胶体和可溶性物质 Download PDF

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CN1940178A
CN1940178A CNA2005101049980A CN200510104998A CN1940178A CN 1940178 A CN1940178 A CN 1940178A CN A2005101049980 A CNA2005101049980 A CN A2005101049980A CN 200510104998 A CN200510104998 A CN 200510104998A CN 1940178 A CN1940178 A CN 1940178A
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paper
pulp
silicon
cationic
grain
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邓俐
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Priority to CNA2005101049980A priority Critical patent/CN1940178A/zh
Priority to EP06791074A priority patent/EP1967494A1/en
Priority to PCT/CN2006/002484 priority patent/WO2007033601A1/zh
Priority to AU2006294284A priority patent/AU2006294284A1/en
Priority to KR1020087010232A priority patent/KR20080083109A/ko
Priority to CA002623459A priority patent/CA2623459A1/en
Priority to JP2008531514A priority patent/JP2009510271A/ja
Publication of CN1940178A publication Critical patent/CN1940178A/zh
Pending legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/50—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by form
    • D21H21/52—Additives of definite length or shape
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/146—After-treatment of sols
    • C01B33/149—Coating
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/69—Water-insoluble compounds, e.g. fillers, pigments modified, e.g. by association with other compositions prior to incorporation in the pulp or paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/06—Paper forming aids
    • D21H21/10—Retention agents or drainage improvers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/66—Salts, e.g. alums
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Paper (AREA)
  • Silicon Compounds (AREA)

Abstract

阳离子纳米颗粒加入纤维浆料中，并迅速混合均匀，能有效地去除水中胶体和可溶性物质。在造纸过程中，去除的污染物质随造纸浆料留在纸页中而净化白水。

Description

用阳离子纳米颗粒在造纸生产过程中去除胶体和可溶性物质
技术领域
用阳离子纳米颗粒去除水中胶体和可溶性污染物质，并在造纸过程中留在纸页上而随产品一起除去。
背景技术
随着吨纸用水量的减少，水中阴离子胶体和可溶性物质在白水循环过程中积累，这些污染物对造纸过程，造纸产品产生非常严重的负面影响。
目前，广泛应用的技术为化学去除法—在造纸过程中，应用阴离子污染物捕捉剂—阳离子聚合电解质—可为低分子量，高电荷密度的阳离子有机聚合物，如polyamines，poly-DADMAC，PAM，polyethylene等.另外，也可加入阳离子铝化物，包括明矾，氯化铝，硝酸铝，和聚合化铝，聚合硫酸铝，聚合矽酸及他们的混合物。聚合铝也可有氯以外的离子如硫酸，磷酸和有机酸离子等。人们也进行了无机填料的探索，如Talc，Kaolin，CaCO3等。然而，上述的这些方法还不能有效的净化白水。
发明内容
本发明是关于使用阳离子纳米硅有效地从纤维浆料中去除胶体和可溶性物质，并在造纸生产过程因留着在纸页中而净化白水。
主要基理是阳离子纳米颗粒通过电中和，颗粒架桥絮凝及静电吸附来去除阴离子的胶体和可溶性污染物。
上述的带正电荷的纳米硅，其特殊表面积可以为50m2/g到5000m2/g。纳米硅的表面阳离子性可由颗粒表面涂有阳离子化学组分而产生。如可参考美国专利U.S.Pat.s No.3,007,878；3,719,607及其他专利中描述的制备。在用碱金属盐改性时，通常是和碱性多价金属盐反应而使颗粒表面带有正电。过程稳定剂可使用硼酸，磷酸，碳酸的碱金属，碱土金属，和氨等。相比多价金属盐如铬，锆等的氯化，硝酸，或醋酸盐类，多价铝盐可为价格较低，也容易得到的改性金属盐。例如用铝盐改性的阳离子硅，Al/Si摩尔比可以为1∶30到30∶1之间。
本发明所用的阳离子纳米硅使用前最好稀释到0.1到2.0％重量百分比。阳离子纳米硅用量可为0.1-20kg/ton，以阳离子纳米硅和纤维浆干重计算。适合量为1-6kg/ton，可在1-3kg/ton或更少的用量获得好的污染物去除效果。
本发明可用于不同纸浆纤维组成的造纸浆料。这里纸浆纤维可为针叶木，阔叶木的化学浆，机械浆，比如硫酸盐浆，亚硫酸盐浆，热磨机械浆，磨石磨木浆，木片磨木浆，化机浆等。也可用于回收纤维和非木材纤维浆料。造纸浆料可含有传统的矿物填料。如：高岭土，钛白粉，滑石粉，石膏，碳酸钙等。以及传统造纸过程中的添加剂，如干强剂，湿强剂，染料等。阳离子纳米硅应在混合填料前加入到纸浆纤维悬浮液中，pH4-9，浆浓可以为0.2％到3.5％。这些去除的污染物，在造纸过程中留着在纸页上，也可与其他有机阳离子合成有机助剂、添加剂一起使用。对纸的质量没有负面影响。
本发明的有益效果是使用纳米颗粒加入纤维浆料中去除水中的胶体和可溶性物质，可降低COD大约50％，70-80％阳离子纳米颗粒可留在纸页中，也提高纤维浆料的留着率，对造纸过程产生正面影响，对产品质量没有负面影响。用量少，效率高，易于操作。广泛地适合各种造纸条件的纸和纸板产品的生产。
具体实施方法
1.实例1，2和3按如下过程准备。用在实例1中的纤维浆料是100％ Spruce热磨机械浆，用氢氧化钠和盐酸调pH到6.5。纳米颗粒为阳离子纳米硅(A)含有5.9％Al2O3，9.9％SiO2和阳离子纳米硅(B)含有25.9％Al2O3，3.9％SiO2。用量是以阳离子硅和纤维浆的干重计算。在关闭下出口的Britt动态脱水瓶装内，在1000转/分的转速下，加入阳离子硅。搅拌3分钟后，取前100秒的流出液。用离心分离方法得到含有胶体和可溶性物质的上水样，根据SCAN-CM 45∶91标准，检测COD。
 A用量kg/ton     COD mg/l    COD去除率％
 01.052.03.0     263.5250.5195140    0.04.92949
 B用量kg/ton     COD mg/l    COD去除率％
 03.04.59.0     219.5199.4143.118.7    0.09.234.745
2.用在实例2中的纳米颗粒为阳离子纳米硅(A)，纤维浆料是100％Spruce热磨机械浆，用氢氧化钠和盐酸调pH到8.5。
A用量kg/ton   COD mg/l    COD去除率％
01.63   244.16208.32129.92    0.014.6846.78
3.用在实例3中的纳米颗粒是阳离子纳米硅(A)，纤维浆料是100％ Spruce热磨机械浆，纸浆浓度为2-10g/l，pH4-9。COD去除率提高了10-26％。
4.在实例4中，将加入阳离子纳米颗粒(A)的纤维浆料，混合均匀。并在1.63g/l的浓度下，用实验室抄纸机制成纸页，跟据SCAN-P标准检测纸页的物理指标和硅留着率。纤维浆料为Spruce热磨机械浆，Pine硫酸盐浆，及混合浆。阳离子硅用量为0.5-3kg/ton，大约70-85％的硅可留在纸页中，纸页强度不变。

Claims (6)

1.阳离子纳米颗粒加入纤维浆料中，并迅速混合均匀，能有效地去除水中胶体和可溶性物质。在造纸过程中，去除的污染物质随造纸浆料留在纸页中而净化白水，用阳离子纳米硅去除水中污染物，对造纸过程产生正面影响，产品质量不变。
2.根据权利1所述的纤维浆料，其特征为混和填料前浆料，可以是针叶木、阔叶木的机械浆，化学浆，化机浆，及回收纤维和非木材纤维浆。pH 4-9，浆料浓度可为0.2％到3.5％。
3.根据权利1所述的造纸浆料，其特征是纤维浆料可以不含或含有传统造纸填料，及一定的造纸助剂及其他添加剂。
4.根据权利1所述的阳离子纳米硅颗粒，其特征是颗粒特殊表面积可以是50m2/g到5000m2/g。表面阳离子性可以因表面涂有阳离子性化学组分而产生。
5.根据权利4所述的阳离子纳米硅颗粒，其特征为例如可以由多价碱金属盐改性而使硅表面带有正电荷，特别是价格经济的金属盐，如铝等多价金属盐，颗粒表面Al/Si摩尔可以在1∶30到30∶1之间。
6.根据权利1所述的阳离子硅，加入量可为0.1-20公斤/吨，以阳离子硅和纤维干重计算。
CNA2005101049980A 2005-09-26 2005-09-26 用阳离子纳米颗粒在造纸生产过程中去除胶体和可溶性物质 Pending CN1940178A (zh)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CNA2005101049980A CN1940178A (zh) 2005-09-26 2005-09-26 用阳离子纳米颗粒在造纸生产过程中去除胶体和可溶性物质
EP06791074A EP1967494A1 (en) 2005-09-26 2006-09-22 Removal of colloids and soluble substances using cationic nanoparticles in the papermaking process
PCT/CN2006/002484 WO2007033601A1 (fr) 2005-09-26 2006-09-22 Elimination de colloides et de substances solubles au moyen de nanoparticules cationiques lors d'un processus de fabrication du papier
AU2006294284A AU2006294284A1 (en) 2005-09-26 2006-09-22 Removal of colloids and soluble substances using cationic nanoparticles in the papermaking process
KR1020087010232A KR20080083109A (ko) 2005-09-26 2006-09-22 종이 제조 방법에서 양이온성 나노입자를 사용하는콜로이드 및 가용성 물질의 제거
CA002623459A CA2623459A1 (en) 2005-09-26 2006-09-22 Use cationic nano-particles to remove dissolved and colloidal substancesduring papermaking
JP2008531514A JP2009510271A (ja) 2005-09-26 2006-09-22 陽イオンナノ粒子ゾル、及び製紙の生産過程に陽イオンナノ粒子によりコロイドと可溶性物質を除去する方法

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CNA2005101049980A CN1940178A (zh) 2005-09-26 2005-09-26 用阳离子纳米颗粒在造纸生产过程中去除胶体和可溶性物质

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EP (1) EP1967494A1 (zh)
JP (1) JP2009510271A (zh)
KR (1) KR20080083109A (zh)
CN (1) CN1940178A (zh)
AU (1) AU2006294284A1 (zh)
CA (1) CA2623459A1 (zh)
WO (1) WO2007033601A1 (zh)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3007878A (en) 1956-11-01 1961-11-07 Du Pont Aquasols of positively-charged coated silica particles and their production
US3719607A (en) 1971-01-29 1973-03-06 Du Pont Stable positively charged alumina coated silica sols and their preparation by postneutralization
US3956171A (en) * 1973-07-30 1976-05-11 E. I. Du Pont De Nemours And Company Process for preparing stable positively charged alumina coated silica sols and product thereof
US4946557A (en) * 1988-03-08 1990-08-07 Eka Nobel Ab Process for the production of paper
US4798653A (en) * 1988-03-08 1989-01-17 Procomp, Inc. Retention and drainage aid for papermaking

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WO2007033601A1 (fr) 2007-03-29
EP1967494A1 (en) 2008-09-10
JP2009510271A (ja) 2009-03-12
CA2623459A1 (en) 2007-03-29
AU2006294284A1 (en) 2007-03-29
KR20080083109A (ko) 2008-09-16

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Inventor after: Deng Li

Inventor after: Bbu Larsen

Inventor after: Persson Michael

Inventor after: Marek Tokaz

Inventor after: Hannu Paulapro

Inventor after: Subfamily E - Laine

Inventor after: Pertti Hinninen

Inventor after: Sven Arenand

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Free format text: CORRECT: INVENTOR; FROM: DENG LI TO: DENG LI; LARSSON. BU; MIKHAIL PERSSON; MAREK TOKAZ; HANNU. PAULAPAUL; ARTHUR E LAINE PERTTI HYNNINEN SVEN AREYNAND

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Application publication date: 20070404