CA1051618A - Methode de production de pates chimico-mecaniques a grand rendement - Google Patents

Methode de production de pates chimico-mecaniques a grand rendement

Info

Publication number
CA1051618A
CA1051618A CA252,642A CA252642A CA1051618A CA 1051618 A CA1051618 A CA 1051618A CA 252642 A CA252642 A CA 252642A CA 1051618 A CA1051618 A CA 1051618A
Authority
CA
Canada
Prior art keywords
pulp
lignocellulosic material
aqueous solution
woody lignocellulosic
sulfite
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
CA252,642A
Other languages
English (en)
Inventor
Prescott E. Gardner
Michael J. Ford
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.)
International Paper Canada Inc
Original Assignee
International Paper Canada Inc
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 International Paper Canada Inc filed Critical International Paper Canada Inc
Priority to CA252,642A priority Critical patent/CA1051618A/fr
Priority to NZ18405177A priority patent/NZ184051A/xx
Priority to US05/838,837 priority patent/US4116758A/en
Application granted granted Critical
Publication of CA1051618A publication Critical patent/CA1051618A/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
    • D21B1/02—Pretreatment of the raw materials by chemical or physical means
    • 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
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
CA252,642A 1976-05-14 1976-05-14 Methode de production de pates chimico-mecaniques a grand rendement Expired CA1051618A (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA252,642A CA1051618A (fr) 1976-05-14 1976-05-14 Methode de production de pates chimico-mecaniques a grand rendement
NZ18405177A NZ184051A (en) 1976-05-14 1977-05-09 Production of high yield chemi-mechanical pulp
US05/838,837 US4116758A (en) 1976-05-14 1977-10-03 Method of producing high yield chemimechanical pulps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA252,642A CA1051618A (fr) 1976-05-14 1976-05-14 Methode de production de pates chimico-mecaniques a grand rendement

Publications (1)

Publication Number Publication Date
CA1051618A true CA1051618A (fr) 1979-04-03

Family

ID=4105968

Family Applications (1)

Application Number Title Priority Date Filing Date
CA252,642A Expired CA1051618A (fr) 1976-05-14 1976-05-14 Methode de production de pates chimico-mecaniques a grand rendement

Country Status (2)

Country Link
CA (1) CA1051618A (fr)
NZ (1) NZ184051A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017215877A1 (fr) * 2016-06-17 2017-12-21 Andritz Ag Procédé de production d'une matière fibreuse

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017215877A1 (fr) * 2016-06-17 2017-12-21 Andritz Ag Procédé de production d'une matière fibreuse
RU2704362C1 (ru) * 2016-06-17 2019-10-28 Андриц Аг Способ изготовления волокнистого материала
US11535983B2 (en) 2016-06-17 2022-12-27 Andritz Ag Method for producing a fibrous material

Also Published As

Publication number Publication date
NZ184051A (en) 1979-11-01

Similar Documents

Publication Publication Date Title
US4152197A (en) Process for preparing high-yield cellulose pulps by vapor phase pulping an unpulped portion of lignocellulosic material and a partially chemically pulped portion
US4116758A (en) Method of producing high yield chemimechanical pulps
Leatham et al. Biomechanical pulping of aspen chips: energy savings resulting from different fungal treatments
EP0764225B1 (fr) Pate de cellulose chimico-mecanique volumineuse a faible indice d'egouttage et a faible teneur en buchettes et en matieres a grains fins
CA1226705A (fr) Production chimicothermique de la pate a papier par traitements distincts a l'alcali et au sulfite
EP0434692A1 (fr) Delignification du bois dans des conditions supercritiques
US4087317A (en) High yield, low cost cellulosic pulp and hydrated gels therefrom
US4211605A (en) High yield chemimechanical pulping processes
US4552616A (en) Pulping process pretreatment using a lower alkanolamine in the presence of ammonium hydroxide
FI73473C (fi) Foerfarande foer framstaellning av fibermassa.
AU2002244309B2 (en) Method for producing pulp
US4190490A (en) Impregnation and digestion of wood chips
AU2002244309A1 (en) Method for producing pulp
US20190211508A1 (en) Paper Processing Composition and Process of Production
CA1051618A (fr) Methode de production de pates chimico-mecaniques a grand rendement
FI83238C (fi) Foerfarande foer framstaellning av cellulosa.
US3013931A (en) Printing paper and process of making the same
EP0030778B1 (fr) Procédé de préparation d'une pâte raffinée
CA1232109A (fr) Production de pate a papier
FI57454C (fi) Framstaellning av foerbaettrad hoegutbytesmassa
US4534397A (en) Method for producing chemimechanical high yield pulp using an oxygen alkali treatment followed by an oxygen mechanical defibration
GB1595719A (en) Method of applying one or more layers of surface stock to the web of base pulp in fibreboard manufacture by the wet-lay system
CA1162358A (fr) Procede et appareil pour deresinifier et rendre plus eclatante la pate cellulosique
JPH0114357B2 (fr)
CA1057007A (fr) Impregnation de particules de bois