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CA2447520A1 - Procede de preparation de substances absorbantes - Google Patents

Procede de preparation de substances absorbantes Download PDF

Info

Publication number
CA2447520A1
CA2447520A1 CA002447520A CA2447520A CA2447520A1 CA 2447520 A1 CA2447520 A1 CA 2447520A1 CA 002447520 A CA002447520 A CA 002447520A CA 2447520 A CA2447520 A CA 2447520A CA 2447520 A1 CA2447520 A1 CA 2447520A1
Authority
CA
Canada
Prior art keywords
treatment
monomer
polymerization
water
lignocellulosic material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002447520A
Other languages
English (en)
Inventor
Yrjoe Maelkki
Merja Marjut Toikka
Antti Jussi Sipilae
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cerefi Oy
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2447520A1 publication Critical patent/CA2447520A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
    • C08H8/00—Macromolecular compounds derived from lignocellulosic materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
    • C08F251/02—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof on to cellulose or derivatives thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Graft Or Block Polymers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polymerisation Methods In General (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

L'invention se rapporte à un procédé de préparation de substances absorbantes à partir de matières lignocellulosiques, dont la paille de céréales, les écorces ou cosses de graines de céréales, des feuilles végétales, de bagasse, de jute ou de copeaux. Le procédé de cette invention comprend des étapes essentielles, à savoir le pré-traitement alcalin en vue de l'élimination partielle de lignine et d'hémicellulose, le traitement d'initiation en vue de la formation de radicaux réactifs, l'addition d'au moins un monomère et un agent de réticulation et finalement la polymérisation. On recense également un traitement antérieur, à savoir le nettoyage à l'eau en vue de l'élimination de corps étrangers et/ou de composants perturbateurs, et éventuellement l'extraction par voie humide ou une autre défibration en vue de l'augmentation de la surface réactive. Afin d'entamer le traitement, on prévoit un produit chimique oxydant dont un peroxyde d'oxygène, alors que pour le monomère on prévoit des composés contenant un groupe vinyle dont l'acide acrylique. En vue d'obtenir ou d'améliorer les propriétés d'échange ionique, on peut ajouter un groupe atomique ionisable dans un monomère ou le former après la polymérisation.
CA002447520A 2001-05-16 2002-05-15 Procede de preparation de substances absorbantes Abandoned CA2447520A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20011034 2001-05-16
FI20011034A FI113375B (fi) 2001-05-16 2001-05-16 Menetelmä absorboivien aineiden valmistamiseksi lignoselluloosamateriaalista
PCT/FI2002/000415 WO2002092669A1 (fr) 2001-05-16 2002-05-15 Procede de preparation de substances absorbantes

Publications (1)

Publication Number Publication Date
CA2447520A1 true CA2447520A1 (fr) 2002-11-21

Family

ID=8561214

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002447520A Abandoned CA2447520A1 (fr) 2001-05-16 2002-05-15 Procede de preparation de substances absorbantes

Country Status (5)

Country Link
US (1) US20040231059A1 (fr)
EP (1) EP1397419A1 (fr)
CA (1) CA2447520A1 (fr)
FI (1) FI113375B (fr)
WO (1) WO2002092669A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI122815B (fi) 2005-04-18 2012-07-13 Cerefi Oy Menetelmä lignoselluloosamateriaalien ja niistä saatujen jakeiden fraktioimiseksi
FI20096198A0 (fi) * 2009-11-18 2009-11-18 Valtion Teknillinen Hapetettu ligniinipitoinen aine, sen käyttö sekä menetelmä saastuneiden nesteiden puhdistamiseksi
JP6063416B2 (ja) * 2014-06-10 2017-01-18 デクセリアルズ株式会社 水浄化剤、及び水浄化方法
CN110603094B (zh) * 2017-03-29 2022-10-28 拉普兰塔拉赫蒂理工大学 提取的木质纤维素材料作为吸附剂及其用途
WO2018236293A1 (fr) * 2017-06-20 2018-12-27 Mitr Phol Sugarcane Research Center Co., Ltd. Matériau cellulosique absorbant
CN109731435B (zh) * 2019-01-17 2021-10-29 江苏省农业科学院 一种纤维素基甲醛吸附剂在吸附甲醛的应用
CN118994501B (zh) * 2024-09-20 2025-12-19 福州大学 一种木质素基耐盐型保水剂及其制备方法
CN119019753B (zh) * 2024-10-25 2025-05-30 宁波尼可海绵科技有限公司 一种海绵制品及其制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4028290A (en) * 1975-10-23 1977-06-07 Hercules Incorporated Highly absorbent modified polysaccharides
US4036588A (en) * 1976-03-09 1977-07-19 Research Corporation Method of increasing the water absorption of cellulose-containing materials
US4806475A (en) * 1983-12-28 1989-02-21 The United States Of America As Represented By The Secretary Of Agriculture Alkaline peroxide treatment of agricultural byproducts
FR2574826B1 (fr) * 1984-12-14 1987-01-09 Du Pin Cellulose Procede de preparation de cellulose modifiee lui conferant des proprietes absorbantes ameliorees
US4818598A (en) * 1985-06-28 1989-04-04 The Procter & Gamble Company Absorbent structures
FR2628764B1 (fr) * 1988-03-16 1990-10-12 Du Pin Cellulose Procede de fabrication de produits fibreux a base de cellulose modifiee presentant des proprietes absorbantes ameliorees et produits obtenus
US4842877A (en) * 1988-04-05 1989-06-27 Xylan, Inc. Delignification of non-woody biomass

Also Published As

Publication number Publication date
FI20011034A0 (fi) 2001-05-16
FI113375B (fi) 2004-04-15
WO2002092669A1 (fr) 2002-11-21
FI20011034L (fi) 2002-11-17
EP1397419A1 (fr) 2004-03-17
US20040231059A1 (en) 2004-11-25
WO2002092669A8 (fr) 2003-07-24

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued