FR2743579B1 - PROCESS FOR PRODUCING PAPER PULP FROM LIGNOCELLULOSIC PLANTS AND PAPER PULP OBTAINED - Google Patents

PROCESS FOR PRODUCING PAPER PULP FROM LIGNOCELLULOSIC PLANTS AND PAPER PULP OBTAINED

Info

Publication number
FR2743579B1
FR2743579B1 FR9600760A FR9600760A FR2743579B1 FR 2743579 B1 FR2743579 B1 FR 2743579B1 FR 9600760 A FR9600760 A FR 9600760A FR 9600760 A FR9600760 A FR 9600760A FR 2743579 B1 FR2743579 B1 FR 2743579B1
Authority
FR
France
Prior art keywords
paper pulp
producing
plants
pulp
lignocellulosic
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.)
Expired - Fee Related
Application number
FR9600760A
Other languages
French (fr)
Other versions
FR2743579A1 (en
Inventor
Didier Cassat
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.)
E MC2 DEV
Original Assignee
E MC2 DEV
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
Priority to FR9600760A priority Critical patent/FR2743579B1/en
Application filed by E MC2 DEV filed Critical E MC2 DEV
Priority to CA002242232A priority patent/CA2242232A1/en
Priority to PCT/FR1997/000065 priority patent/WO1997026401A1/en
Priority to CN97193114A priority patent/CN1077630C/en
Priority to ES97900645T priority patent/ES2146456T3/en
Priority to AT97900645T priority patent/ATE192798T1/en
Priority to DE69701960T priority patent/DE69701960T2/en
Priority to EP97900645A priority patent/EP0874935B1/en
Publication of FR2743579A1 publication Critical patent/FR2743579A1/en
Application granted granted Critical
Publication of FR2743579B1 publication Critical patent/FR2743579B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/36—Explosive disintegration by sudden pressure reduction
    • 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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials

Abstract

The invention relates to a process for producing pulp, from raw lignocellulosic material based on annual or perennial plants, or residues of such plants. The process comprises impregnating said raw material with an aqueous soda solution such that the weight proportion of soda is substantially comprises between 3.5 % and 10 % based on the dry material and that the weight ratio of hydration of the cellulosic material after impregnation is at least equal to 40 %, and subjecting the lignocellulosic material thus impregnated to vapocracking which consists in pressurising said material under saturated vapour conditions and producing a sudden expansion through a direct passage valve. The solid fraction which forms the pulp is then separated from the aqueous phase and the hydrosoluble products. The process yields good quality pulps characterized particularly by a braking length higher than 5500 meters, and having a high lignine ratio (KAPPA index comprises between 60 and 65).
FR9600760A 1996-01-17 1996-01-17 PROCESS FOR PRODUCING PAPER PULP FROM LIGNOCELLULOSIC PLANTS AND PAPER PULP OBTAINED Expired - Fee Related FR2743579B1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR9600760A FR2743579B1 (en) 1996-01-17 1996-01-17 PROCESS FOR PRODUCING PAPER PULP FROM LIGNOCELLULOSIC PLANTS AND PAPER PULP OBTAINED
PCT/FR1997/000065 WO1997026401A1 (en) 1996-01-17 1997-01-15 Process for producing pulp from lignocellulosic plants, and pulp obtained
CN97193114A CN1077630C (en) 1996-01-17 1997-01-15 Process for producing pulp from lignocellulosic plants, and pulp obtained
ES97900645T ES2146456T3 (en) 1996-01-17 1997-01-15 PAPER PULP MANUFACTURING PROCEDURE FROM LIGNOCELLULOSIC PLANTS AND PAPER PULP OBTAINED.
CA002242232A CA2242232A1 (en) 1996-01-17 1997-01-15 Process for producing pulp from lignocellulosic plants, and pulp obtained
AT97900645T ATE192798T1 (en) 1996-01-17 1997-01-15 METHOD FOR PRODUCING PAPER PULP FROM LIGNOCELLULOSIC PLANTS AND PAPER PULP PRODUCED THEREFROM
DE69701960T DE69701960T2 (en) 1996-01-17 1997-01-15 METHOD FOR PRODUCING PAPER CELL FABRIC FROM LIGNOCELLULOSIC PLANTS AND PAPER CELL FABRICATED THEREOF
EP97900645A EP0874935B1 (en) 1996-01-17 1997-01-15 Process for producing pulp from lignocellulosic plants, and pulp obtained

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9600760A FR2743579B1 (en) 1996-01-17 1996-01-17 PROCESS FOR PRODUCING PAPER PULP FROM LIGNOCELLULOSIC PLANTS AND PAPER PULP OBTAINED

Publications (2)

Publication Number Publication Date
FR2743579A1 FR2743579A1 (en) 1997-07-18
FR2743579B1 true FR2743579B1 (en) 1998-03-06

Family

ID=9488388

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9600760A Expired - Fee Related FR2743579B1 (en) 1996-01-17 1996-01-17 PROCESS FOR PRODUCING PAPER PULP FROM LIGNOCELLULOSIC PLANTS AND PAPER PULP OBTAINED

Country Status (8)

Country Link
EP (1) EP0874935B1 (en)
CN (1) CN1077630C (en)
AT (1) ATE192798T1 (en)
CA (1) CA2242232A1 (en)
DE (1) DE69701960T2 (en)
ES (1) ES2146456T3 (en)
FR (1) FR2743579B1 (en)
WO (1) WO1997026401A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6365732B1 (en) * 2000-07-10 2002-04-02 Sweet Beet Incorporated Process for obtaining stereoisomers from biomass
CN101748633B (en) * 2008-12-19 2012-07-04 北京英力生科新材料技术有限公司 Novel cellulose extraction process
CN105178080A (en) * 2015-09-18 2015-12-23 新疆国力源投资有限公司 Method for preparing flax stem unbleached pulp
CN108277670B (en) * 2018-03-12 2024-03-08 北京新锐得环保科技有限公司 Steam explosion pulping system for salix psammophila pulping
WO2021110188A1 (en) * 2019-12-03 2021-06-10 Klingele Papierwerke Gmbh & Co. Kg Method and device for producing fibrous material with a feed system and a helical screw system
DE102019008351A1 (en) * 2019-12-03 2021-06-10 Klingele Papierwerke Gmbh & Co. Kg Method and device for the production of pulp with a feed system and a screw system
CN113829459B (en) * 2021-09-23 2022-07-22 北京科技大学 Preparation method of artificially-degraded water-saturated wood
CN116084206A (en) * 2022-12-29 2023-05-09 中冶美利云产业投资股份有限公司 Production process of high-grade black paperboard

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1230208A (en) * 1987-03-24 1987-12-15 Bohuslav V. Kokta Process for preparing pulp for paper making

Also Published As

Publication number Publication date
FR2743579A1 (en) 1997-07-18
CN1214091A (en) 1999-04-14
EP0874935A1 (en) 1998-11-04
WO1997026401A1 (en) 1997-07-24
EP0874935B1 (en) 2000-05-10
DE69701960D1 (en) 2000-06-15
ATE192798T1 (en) 2000-05-15
CN1077630C (en) 2002-01-09
CA2242232A1 (en) 1997-07-24
ES2146456T3 (en) 2000-08-01
DE69701960T2 (en) 2001-01-25

Similar Documents

Publication Publication Date Title
AU705185B2 (en) A light drainability, bulky chemimechanical pulp that has a low shive content and a low fine-material content
RU2743392C2 (en) Paper or cardboard article having at least one layer containing high-yield cellulose and a method for production thereof
EP2126195A1 (en) Method for the production of tissue paper
US3597310A (en) Method of producing high yield pulp by disc refining at ph of 12 to 14
KR100694840B1 (en) Manufacturing method of mechanical pulp from cornstalk
FR2743579B1 (en) PROCESS FOR PRODUCING PAPER PULP FROM LIGNOCELLULOSIC PLANTS AND PAPER PULP OBTAINED
CA1036304A (en) Process for producing paper-making pulps from grasses
SE8802089D0 (en) A METHOD OF PREPARING A PULP
CA2452611A1 (en) Method for delignifying lignocellulosic materials
Belayachi et al. Sweet sorghum: A quality raw material for the manufacturing of chemical paper pulp
US2215353A (en) Process of making fiberboard
FI66449B (en) SAETT ATT PAOLAEGGA ETT ELLER FLERA YTMASSASKIKT PAO GRUNDMASSABANAN VID FRAMSTAELLNING AV FIBERSKIVOR PAO VAOTA VAEGEN
Boonpitaksakul et al. Natural fibers derived from Coi (Streblus asper Lour.) and their behavior in pulping and as paper
WO1991006700A1 (en) A method of producing cellulosic pulp
Ince Fiber resources
RU2815971C1 (en) Cable paper and method of manufacturing thereof
Young et al. Pulping of British-Grown Softwoods. Pt. VI. The Pulping Properties of Sitka Spruce Compression Wood
US3830689A (en) Separate impregnation and common digestion of different wooden raw materials
Gao et al. Camellia oleifera shell as a potential agricultural by-product for paper production
DO Application of Thermomechanical Pulping Method for Fabricating Bamboo Fiber
JPS6247999B2 (en)
Ali et al. Pulp and paper from certain fast-growing plant species
JP2023532750A (en) High-yield cooking method
DE2620827A1 (en) Cellulose prodn. for newsprint mfr. from bagasse - by preliminary pith removal before storage and pulping
Miyanishi Thermomechanical pulp innovation for energy saving and high brightness paper development

Legal Events

Date Code Title Description
ST Notification of lapse