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FR3146481B1 - Process for obtaining at least two cellulosic pulps having different characteristics - Google Patents

Process for obtaining at least two cellulosic pulps having different characteristics Download PDF

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Publication number
FR3146481B1
FR3146481B1 FR2302151A FR2302151A FR3146481B1 FR 3146481 B1 FR3146481 B1 FR 3146481B1 FR 2302151 A FR2302151 A FR 2302151A FR 2302151 A FR2302151 A FR 2302151A FR 3146481 B1 FR3146481 B1 FR 3146481B1
Authority
FR
France
Prior art keywords
cellulosic
obtaining
pulps
cellulosic pulps
plant materials
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.)
Active
Application number
FR2302151A
Other languages
French (fr)
Other versions
FR3146481A1 (en
Inventor
Anne Reboux
Charles Reboux
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.)
Rbx Creations
Original Assignee
Rbx Creations
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 Rbx Creations filed Critical Rbx Creations
Priority to FR2302151A priority Critical patent/FR3146481B1/en
Priority to PCT/EP2024/056051 priority patent/WO2024184474A1/en
Priority to EP24709075.6A priority patent/EP4677149A1/en
Publication of FR3146481A1 publication Critical patent/FR3146481A1/en
Application granted granted Critical
Publication of FR3146481B1 publication Critical patent/FR3146481B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • 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
    • D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
    • 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
    • D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
    • D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Paper (AREA)

Abstract

Procédé d’obtention d’au moins deux pulpes cellulosiques présentant des caractéristiques différentes L'invention a pour objet un procédé d’obtention de pulpes cellulosiques qui comprend : une étape de mélange de matières végétales comportant au moins 60% de matière lignocellulosique présentant un taux de lignine supérieur ou égal à 18% ainsi qu’au moins 2% de matière fibreuse présentant un taux de lignine inférieur ou égal à 9%,une étape de cuisson du mélange de matières végétales,une étape de soutirage de la phase liquide afin d’isoler une pulpe cellulosique,une étape de fractionnement de la pulpe cellulosique en au moins deux pulpes cellulosiques présentant chacune au moins une caractéristique de fibres différente l’une de l’autre. Ainsi, contrairement à l’art antérieur qui sélectionne une partie d’une matière végétale spécifique pour obtenir une pulpe cellulosique donnée, l’invention vise à transformer un mélange de matières végétales moins sélectives pour obtenir une pulpe cellulosique puis à la fractionner afin d’obtenir deux pulpes cellulosiques distinctes.Method for obtaining at least two cellulosic pulps having different characteristics The invention relates to a method for obtaining cellulosic pulps which comprises: a step of mixing plant materials comprising at least 60% of lignocellulosic material having a lignin content greater than or equal to 18% and at least 2% of fibrous material having a lignin content less than or equal to 9%, a step of cooking the mixture of plant materials, a step of drawing off the liquid phase in order to isolate a cellulosic pulp, a step of fractionating the cellulosic pulp into at least two cellulosic pulps each having at least one fiber characteristic different from each other. Thus, unlike the prior art which selects a portion of a specific plant material to obtain a given cellulosic pulp, the invention aims to transform a mixture of less selective plant materials to obtain a cellulosic pulp and then to fractionate it in order to obtain two distinct cellulosic pulps.

FR2302151A 2023-03-08 2023-03-08 Process for obtaining at least two cellulosic pulps having different characteristics Active FR3146481B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR2302151A FR3146481B1 (en) 2023-03-08 2023-03-08 Process for obtaining at least two cellulosic pulps having different characteristics
PCT/EP2024/056051 WO2024184474A1 (en) 2023-03-08 2024-03-07 Method for obtaining at least two cellulose pulps with different characteristics
EP24709075.6A EP4677149A1 (en) 2023-03-08 2024-03-07 Method for obtaining at least two cellulose pulps with different characteristics

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2302151 2023-03-08
FR2302151A FR3146481B1 (en) 2023-03-08 2023-03-08 Process for obtaining at least two cellulosic pulps having different characteristics

Publications (2)

Publication Number Publication Date
FR3146481A1 FR3146481A1 (en) 2024-09-13
FR3146481B1 true FR3146481B1 (en) 2025-02-07

Family

ID=86657088

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2302151A Active FR3146481B1 (en) 2023-03-08 2023-03-08 Process for obtaining at least two cellulosic pulps having different characteristics

Country Status (3)

Country Link
EP (1) EP4677149A1 (en)
FR (1) FR3146481B1 (en)
WO (1) WO2024184474A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69912007T2 (en) * 1999-05-06 2004-06-24 Compagnie Industrielle des Matières Végétales METHOD FOR THE PRODUCTION OF CELLULA, LIGNIN, SUGAR AND ACETIC ACID BY FRACTIONATION OF THE LIGNOCELLULOSE MATERIAL BY MEANS OF FORMIC AND ACETIC ACID
GB201303521D0 (en) * 2013-02-27 2013-04-10 Bio Sep Ltd Process operations for biomass fractionation
EP3341416A4 (en) * 2015-08-27 2019-08-28 GranBio Intellectual Property Holdings, LLC Nanocellulose production co-located at a pulp and paper mill
FR3106600B1 (en) 2020-01-28 2021-12-31 Rbx Creations Process for obtaining a hemp-based cellulosic pulp, cellulosic pulp obtained from said process and product obtained from said cellulosic pulp

Also Published As

Publication number Publication date
EP4677149A1 (en) 2026-01-14
FR3146481A1 (en) 2024-09-13
WO2024184474A1 (en) 2024-09-12

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