FR2544757B1 - Procede et appareil de digestion pour la production de pulpe de haute qualite - Google Patents

Procede et appareil de digestion pour la production de pulpe de haute qualite

Info

Publication number
FR2544757B1
FR2544757B1 FR8404874A FR8404874A FR2544757B1 FR 2544757 B1 FR2544757 B1 FR 2544757B1 FR 8404874 A FR8404874 A FR 8404874A FR 8404874 A FR8404874 A FR 8404874A FR 2544757 B1 FR2544757 B1 FR 2544757B1
Authority
FR
France
Prior art keywords
production
high quality
digestion method
quality pulp
pulp
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
Application number
FR8404874A
Other languages
English (en)
Other versions
FR2544757A1 (fr
Inventor
Eduardo Joel Villavicencio
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.)
Process Evaluation and Development Corp
Original Assignee
Process Evaluation and Development Corp
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 Process Evaluation and Development Corp filed Critical Process Evaluation and Development Corp
Publication of FR2544757A1 publication Critical patent/FR2544757A1/fr
Application granted granted Critical
Publication of FR2544757B1 publication Critical patent/FR2544757B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/26—Multistage processes
FR8404874A 1983-04-20 1984-03-28 Procede et appareil de digestion pour la production de pulpe de haute qualite Expired FR2544757B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48667883A 1983-04-20 1983-04-20
US49565983A 1983-05-18 1983-05-18

Publications (2)

Publication Number Publication Date
FR2544757A1 FR2544757A1 (fr) 1984-10-26
FR2544757B1 true FR2544757B1 (fr) 1986-11-07

Family

ID=27048768

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8404874A Expired FR2544757B1 (fr) 1983-04-20 1984-03-28 Procede et appareil de digestion pour la production de pulpe de haute qualite

Country Status (4)

Country Link
AU (1) AU570034B2 (fr)
ES (1) ES542278A0 (fr)
FR (1) FR2544757B1 (fr)
PH (1) PH25619A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ211684A (en) * 1985-04-04 1989-07-27 Caxton Paper Ltd Manufacture of cellulose pulp: second digestion step follows initial digestion and refining steps
NZ229080A (en) * 1989-05-11 1991-10-25 Convertech Group Ltd Two stage process and equipment for the steam hydrolysis of woody material
FR2669020B1 (fr) * 1990-11-13 1994-01-21 Gerard Ascher Procede de fabrication de mortier composite cellulaire charge de fibres et materiau obtenue par ce procede.
AT398587B (de) * 1992-02-04 1994-12-27 Oesterreichische Homogenholz A Einspeiseverfahren
NZ248895A (en) * 1993-10-08 1995-07-26 Convertech Group Ltd Transfer device having intermittently rotated carousel having through passageways with assembly sealing pressure maximised during rotor dwell periods
CN107083710A (zh) * 2017-04-20 2017-08-22 四川省犍为凤生纸业有限责任公司 一种竹材原浆纸生产方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR964386A (fr) * 1950-08-11
US2862813A (en) * 1952-12-23 1958-12-02 Process Evaluation Devel Semi-chemical pulping process
US3238088A (en) * 1962-12-04 1966-03-01 Cia Ind De Ayotla Continuous digesting of cellulosic fibrous material at decreasing pressure with mechanical defibering therebetween
FI42161C (fi) * 1963-04-03 1970-05-11 Defibrator Ab Tapa mekaanisten ja puolikemiallisten massojen valmistamiseksi jatkuvasti lignoselluloosapitoisesta aineesta
US3773610A (en) * 1970-12-11 1973-11-20 Bauer Bros Co Pressurized system for pulp refining including pressurized double disk treatment
US4152197A (en) * 1974-09-23 1979-05-01 Mo Och Domsjo Ab Process for preparing high-yield cellulose pulps by vapor phase pulping an unpulped portion of lignocellulosic material and a partially chemically pulped portion
US4260452A (en) * 1978-11-24 1981-04-07 Krueger Horst Production of paper pulp from sugar mill bagasse
US4347101A (en) * 1980-11-24 1982-08-31 W. R. Grace & Co. Process for producing newsprint

Also Published As

Publication number Publication date
PH25619A (en) 1991-08-08
ES8603606A1 (es) 1985-12-16
ES542278A0 (es) 1985-12-16
AU570034B2 (en) 1988-03-03
AU2540084A (en) 1984-10-25
FR2544757A1 (fr) 1984-10-26

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Legal Events

Date Code Title Description
ST Notification of lapse