CN113174776A - 一种细粒径蓝光重质碳酸钙浆料的制备方法 - Google Patents

一种细粒径蓝光重质碳酸钙浆料的制备方法 Download PDF

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CN113174776A
CN113174776A CN202110503726.7A CN202110503726A CN113174776A CN 113174776 A CN113174776 A CN 113174776A CN 202110503726 A CN202110503726 A CN 202110503726A CN 113174776 A CN113174776 A CN 113174776A
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calcium carbonate
heavy calcium
slurry
fine
stirring
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王彦华
夏浙安
章圣苗
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East China University of Science and Technology
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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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
    • D21H17/74—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes of organic and inorganic material
    • 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
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
    • 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
    • D21H17/675—Oxides, hydroxides or carbonates
    • 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
    • D21H21/14—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 function or properties in or on the paper
    • D21H21/28—Colorants ; Pigments or opacifying agents

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)

Abstract

本专利一种细粒径蓝光重质碳酸钙浆料的制备方法，其特征在于，包括如下步骤：按重量计向搅拌槽中加入40～70份去离子水，开启搅拌，向去离子水中加入聚丙烯酸钠分散剂，再将60～30重量份细度为200～600目的重质碳酸钙粉加入水中，继续搅拌1小时配成重质碳酸钙浆料；采用砂磨机对重质碳酸钙进行反复研磨，直至粒径小于2µm的颗粒含量达到95%以上，制得细粒径重质碳酸钙浆料；向细粒径重质碳酸钙浆料中加入硫酸铜，搅拌3～5小时，得到细粒径蓝光重质碳酸钙浆料。

Description

一种细粒径蓝光重质碳酸钙浆料的制备方法
技术领域
本发明涉及一种细粒径蓝光重质碳酸钙浆料的制备方法。
背景技术
造纸中加入填料可以提高纸张的不透明度和亮度，改进纸张的平滑度和均匀状态，增加纸张的柔软性，降低纸张的吸湿性和变形程度，同时还有利于降低生产成本。而碳酸钙由于其价格低廉，且同样能提高纸张的不透明度、增加纸张的吸油墨性能，作为造纸填料具有一定的成本优势。随着酸性造纸向中性造纸转变，重质碳酸钙日益成为中国造纸工业提高纸张质量、降低造纸成本的重要原材料。重质碳酸钙往往粒径较大，不容易被造纸纤维所吸附，抄纸过程中会随水流失，所以填料保留率不高。另外，重质碳酸钙为天然矿物，一般都含有较多的杂质，这些杂质往往会使纸张白度下降，细粒径蓝光重质碳酸钙，既填料保留率有改善的纸张白度。
本发明采用砂磨机对重质碳酸钙进行反复研磨，直至粒径小于2µm的颗粒含量达到95%以上，这种细粒径重质碳酸钙容易被造纸纤维所吸附，可显著提高重钙填料的保留率。向细粒径重质碳酸钙浆料中加入硫酸铜的目的是为了改善纸张的白度，因为重质碳酸钙的pH为8～9为碱性，加入的硫酸铜会在重质碳酸钙浆料的碱性环境中发生水解，水解产物为氢氧化铜，氢氧化铜为淡蓝色，氢氧化铜会吸附在重质碳酸钙表面，使重质碳酸钙颗粒表面被淡蓝色氢氧化铜所包裹，使重质碳酸钙颗粒表面带蓝色，这种表面带表面带蓝色的重质碳酸钙加入到纸浆中，抄出的纸带蓝色，这样就改善纸张的白度。
发明内容
本发明的一个目的是为了提供一种细粒径蓝光重质碳酸钙浆料的制备方法，包括如下步骤：
一种细粒径蓝光重质碳酸钙浆料的制备方法，其特征在于，包括如下步骤：按重量计向搅拌槽中加入40～70份去离子水，开启搅拌，向去离子水中加入聚丙烯酸钠分散剂，再将60～30重量份细度为200～600目的重质碳酸钙粉加入水中，继续搅拌1小时配成重质碳酸钙浆料；采用砂磨机对重质碳酸钙进行反复研磨，直至粒径小于2µm的颗粒含量达到95%以上，制得细粒径重质碳酸钙浆料；向细粒径重质碳酸钙浆料中加入硫酸铜，搅拌3～5小时，得到细粒径蓝光重质碳酸钙浆料；
所述的聚丙烯酸钠分散剂的加入量为重质碳酸钙干粉重量的0.5～1.0%；
所述的硫酸铜加入量为重质碳酸钙干粉重量的0.5～1.5%。
具体实施方式
实施例1
将2.0吨200目重质碳酸钙粉加入到4.7吨去离子水中，搅拌制成浆料，并向浆料中加入10kg聚丙烯酸钠分散剂，充分搅拌，使浆料获得良好的流动性。然后用泵将浆料送入一台500升研磨机，用研磨机对重质碳酸钙进行研磨，制得超细重质碳酸钙浆料，其中小于2µm的颗粒质量含量为95%。然后向超细重质碳酸钙浆料中加入10kg硫酸铜，搅拌3小时，得到细粒径蓝光重质碳酸钙浆料，浆料可以直接用作造纸填料。
实施例2
将2.0吨400目重质碳酸钙粉加入到3.0吨去离子水中，搅拌制成浆料，并向浆料中加入12kg聚丙烯酸钠分散剂，充分搅拌，使浆料获得良好的流动性。然后用泵将浆料送入一台500升研磨机，用研磨机对重质碳酸钙进行研磨，制得超细重质碳酸钙浆料，其中小于2µm的颗粒质量含量为98%。然后向超细重质碳酸钙浆料中加入25kg硫酸铜，搅拌5小时，得到细粒径蓝光重质碳酸钙浆料，浆料可以直接用作造纸填料。
实施例3
将2.0吨600目重质碳酸钙粉加入到1.4吨去离子水中，搅拌制成浆料，并向浆料中加入20kg聚丙烯酸钠分散剂，充分搅拌，使浆料获得良好的流动性。然后用泵将浆料送入一台500升研磨机，用研磨机对重质碳酸钙进行研磨，制得超细重质碳酸钙浆料，其中小于2µm的颗粒质量含量为96%。然后向超细重质碳酸钙浆料中加入30kg硫酸铜，搅拌4小时，得到细粒径蓝光重质碳酸钙浆料，浆料可以直接用作造纸填料。
实施例4
将2.0吨200目重质碳酸钙粉加入到4.0吨去离子水中，搅拌制成浆料，并向浆料中加入13kg聚丙烯酸钠分散剂，充分搅拌，使浆料获得良好的流动性。然后用泵将浆料送入一台500升研磨机，用研磨机对重质碳酸钙进行研磨，制得超细重质碳酸钙浆料，其中小于2µm的颗粒质量含量为97%。然后向超细重质碳酸钙浆料中加入18kg硫酸铜，搅拌3小时，得到细粒径蓝光重质碳酸钙浆料，浆料可以直接用作造纸填料。
实施例5
将2.0吨300目重质碳酸钙粉加入到2.5吨去离子水中，搅拌制成浆料，并向浆料中加入16kg聚丙烯酸钠分散剂，充分搅拌，使浆料获得良好的流动性。然后用泵将浆料送入一台500升研磨机，用研磨机对重质碳酸钙进行研磨，制得超细重质碳酸钙浆料，其中小于2µm的颗粒质量含量为99%。然后向超细重质碳酸钙浆料中加入14kg硫酸铜，搅拌3小时，得到细粒径蓝光重质碳酸钙浆料，浆料可以直接用作造纸填料。

Claims (1)

1.一种细粒径蓝光重质碳酸钙浆料的制备方法，其特征在于，包括如下步骤：按重量计向搅拌槽中加入40～70份去离子水，开启搅拌，向去离子水中加入聚丙烯酸钠分散剂，再将60～30重量份细度为200～600目的重质碳酸钙粉加入水中，继续搅拌1小时配成重质碳酸钙浆料；采用砂磨机对重质碳酸钙进行反复研磨，直至粒径小于2µm的颗粒含量达到95%以上，制得细粒径重质碳酸钙浆料；向细粒径重质碳酸钙浆料中加入硫酸铜，搅拌3～5小时，得到细粒径蓝光重质碳酸钙浆料；
所述的聚丙烯酸钠分散剂的加入量为重质碳酸钙干粉重量的0.5～1.0%；
所述的硫酸铜加入量为重质碳酸钙干粉重量的0.5～1.5%。
CN202110503726.7A 2021-05-10 2021-05-10 一种细粒径蓝光重质碳酸钙浆料的制备方法 Pending CN113174776A (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0717803A (ja) * 1991-03-27 1995-01-20 Shiraishi Chuo Kenkyusho:Kk 抗菌性炭酸カルシウム粉体
JP2012132134A (ja) * 2010-12-24 2012-07-12 Nippon Paper Industries Co Ltd 新聞印刷用紙
CN109757106A (zh) * 2016-07-25 2019-05-14 Omya国际股份公司 具有不同官能阳离子的经表面反应的碳酸钙的后处理
US20200038792A1 (en) * 2017-03-02 2020-02-06 Nevada Nanotech Systems Inc. Hydrogen sulfide filters, methods of forming the hydrogen sulfide filters, and systems including such filters
CN112358742A (zh) * 2020-11-10 2021-02-12 济宁明升新材料有限公司 一种99级的重质碳酸钙及其制备方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0717803A (ja) * 1991-03-27 1995-01-20 Shiraishi Chuo Kenkyusho:Kk 抗菌性炭酸カルシウム粉体
JP2012132134A (ja) * 2010-12-24 2012-07-12 Nippon Paper Industries Co Ltd 新聞印刷用紙
CN109757106A (zh) * 2016-07-25 2019-05-14 Omya国际股份公司 具有不同官能阳离子的经表面反应的碳酸钙的后处理
US20200038792A1 (en) * 2017-03-02 2020-02-06 Nevada Nanotech Systems Inc. Hydrogen sulfide filters, methods of forming the hydrogen sulfide filters, and systems including such filters
CN112358742A (zh) * 2020-11-10 2021-02-12 济宁明升新材料有限公司 一种99级的重质碳酸钙及其制备方法

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Application publication date: 20210727