JP2008532021A - 可視・近赤外分光測定法により化学パルプのカッパー価を測定する方法 - Google Patents
可視・近赤外分光測定法により化学パルプのカッパー価を測定する方法 Download PDFInfo
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/228—Automation of the pulping processes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3563—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
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- G—PHYSICS
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
- D21C9/1052—Controlling the process
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
- G01N2021/3155—Measuring in two spectral ranges, e.g. UV and visible
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Abstract
Description
図1を参照すると、木材チップ10が蒸解釜12の中に導入され蒸解用化学薬品と混合されて、木材マトリックスからリグニンを放出してパルプ繊維を生成する。パルプ繊維は次にブロータンク14中に吹き込まれ、そこに水が添加され、該紙料は褐色紙料洗浄機16にポンプで送り込まれる。該紙料は複数の洗浄機16を通して洗浄され、次に、抄紙機22に送付される前に複数のタワー18及び洗浄機20の中で漂白される。
スペクトル分析装置(ASD,Boulder,Co.)、より特別には350nmから2500nmまで100ミリ秒で完全な走査を提供することが出来る可視/近赤外分光計を用いて実験を行った。該装置は小型であり、野外操作用のバッテリ・パックで操作することが出来る。データを収集し完全なスペクトル範囲での40回の走査に亘り平均化したが、4秒を要した。
Claims (18)
- 化学パルプ繊維のパルプ性能を測定する方法であって、
a) 少なくとも部分的に蒸解された木材チップから誘導されたパルプ繊維を、350nm〜750nmの可視領域における範囲及び1100〜2400nmの近赤外(NIR)領域における範囲を有効範囲とする光に曝し、該パルプ繊維に該光を反射させ、
b) 前記繊維から反射された光を収集し、
c) 該反射光のスペクトルを確立し、
d) 前記スペクトルをパルプ性能の知られた化学パルプ繊維のスペクトルと比較し、そして
e) d)における比較から該パルプ性能を評価する
ことを特徴とする前記の方法。 - 前記パルプ性能がリグニン含量である、請求項1による方法。
- 前記パルプ性能がカッパー価である、請求項1による方法。
- 前記パルプ性能がISO白色度である、請求項1による方法。
- 前記の可視領域における光が400nm〜750nmの範囲にある、請求項1〜4項の任意の1項による方法。
- 前記パルプ繊維が8%〜30%のコンシステンシーを有する、請求項1〜5項の任意の1項による方法。
- 前記パルプ繊維が工程a)及びb)の間可動性である、請求項1〜6項の任意の1項による方法。
- 前記パルプ繊維が工程a)及びb)の間チャンバー中で見出され、前記チャンバーが一定の回転速度で回転している、請求項7による方法。
- 前記の工程b)における収集が所定の時間帯行われる、請求項1〜8項の任意の1項による方法。
- 前記の時間帯が60秒未満である、請求項9による方法。
- 前記の時間帯が10秒未満である、請求項10による方法。
- 前記の工程a)におけるパルプ繊維がパルプ製造ラインにある、請求項1〜11項の任意の1項による方法。
- 前記工程a)が製造ラインにおける複数の位置でパルプ繊維に対して行われる、請求項12による方法。
- 前記の複数の位置が該パルプ繊維の誘導される木材チップの蒸解より下流である、請求項13による方法。
- パルプ繊維製造ラインであって、木材チップを蒸解するための蒸解釜、及びパルプの洗浄並びに漂白装置を有し、そして該ライン中でパルプ繊維のパルプ性能を測定するための手段を有するパルプ繊維製造ラインにおいて、前記手段が、
i) 前記ライン中の少なくとも一つの位置で前記パルプ繊維を、350nm〜750nmの可視領域における範囲及び1100〜2400nmの近赤外(NIR)領域における範囲を有効範囲とする光に曝すように構成された光源、
ii) 前記光源に曝されたパルプ繊維から反射された光を収集し該反射光のスペクトルを確立する分光計、及び
iii) ii)で確立されたスペクトルをパルプ性能の知られたパルプ繊維のスペクトルと比較し該比較からi)におけるパルプ繊維の性能を測定することの出来る比較手段
を含むことを特徴とする、改良された前記パルプ繊維製造ライン。 - 前記光源が可視領域に対する範囲が400nm〜750nmである光を提供するように構成されている、請求項15によるパルプ繊維製造ライン。
- 前記のパルプ性能を測定するための手段が該蒸解釜の下流にある、請求項15によるパルプ繊維製造ライン。
- 前記手段が該蒸解釜より下流の複数の位置にある、請求項17によるパルプ繊維製造ライン。
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US65818305P | 2005-03-04 | 2005-03-04 | |
PCT/CA2006/000294 WO2006092045A1 (en) | 2005-03-04 | 2006-02-28 | Method for determining chemical pulp kappa number with visible-near infrared spectrometry |
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JP2008532021A5 JP2008532021A5 (ja) | 2008-11-27 |
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Country Status (9)
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US (1) | US7604712B2 (ja) |
EP (1) | EP1859253B1 (ja) |
JP (1) | JP2008532021A (ja) |
CN (1) | CN100538337C (ja) |
BR (1) | BRPI0607744B1 (ja) |
CA (1) | CA2599033C (ja) |
NO (1) | NO338171B1 (ja) |
RU (1) | RU2390760C2 (ja) |
WO (1) | WO2006092045A1 (ja) |
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JP2018105860A (ja) * | 2016-12-19 | 2018-07-05 | バルメット オートメーション オイ | 媒体としての流体と媒体中に非溶解の粒子を持つ流動性材料を光学的に測定する装置および方法 |
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- 2006-02-28 BR BRPI0607744-7A patent/BRPI0607744B1/pt active IP Right Grant
- 2006-02-28 CN CN200680006883.0A patent/CN100538337C/zh active Active
- 2006-02-28 WO PCT/CA2006/000294 patent/WO2006092045A1/en active Application Filing
- 2006-02-28 JP JP2007557298A patent/JP2008532021A/ja active Pending
- 2006-02-28 CA CA2599033A patent/CA2599033C/en active Active
- 2006-02-28 EP EP06705248A patent/EP1859253B1/en active Active
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CN101957315A (zh) * | 2010-09-11 | 2011-01-26 | 大连工业大学 | 一种测定黑液中木素含量的方法 |
JP2018105860A (ja) * | 2016-12-19 | 2018-07-05 | バルメット オートメーション オイ | 媒体としての流体と媒体中に非溶解の粒子を持つ流動性材料を光学的に測定する装置および方法 |
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RU2007136715A (ru) | 2009-04-10 |
BRPI0607744B1 (pt) | 2018-04-17 |
EP1859253A1 (en) | 2007-11-28 |
CA2599033A1 (en) | 2006-09-08 |
BRPI0607744A2 (pt) | 2010-03-16 |
US7604712B2 (en) | 2009-10-20 |
NO338171B1 (no) | 2016-08-01 |
CN101133315A (zh) | 2008-02-27 |
CA2599033C (en) | 2011-06-07 |
CN100538337C (zh) | 2009-09-09 |
WO2006092045A1 (en) | 2006-09-08 |
EP1859253A4 (en) | 2010-12-01 |
US20060196622A1 (en) | 2006-09-07 |
NO20074984L (no) | 2007-12-04 |
EP1859253B1 (en) | 2012-09-12 |
RU2390760C2 (ru) | 2010-05-27 |
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