PH25619A - Digestion process - Google Patents

Digestion process

Info

Publication number
PH25619A
PH25619A PH36222A PH36222A PH25619A PH 25619 A PH25619 A PH 25619A PH 36222 A PH36222 A PH 36222A PH 36222 A PH36222 A PH 36222A PH 25619 A PH25619 A PH 25619A
Authority
PH
Philippines
Prior art keywords
digestion process
digestion
Prior art date
Application number
PH36222A
Other languages
English (en)
Inventor
Eduardo Joel Villavicencio
Original Assignee
Process Evaluation
Dev 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, Dev Corp filed Critical Process Evaluation
Publication of PH25619A publication Critical patent/PH25619A/en

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
PH36222A 1983-04-20 1987-12-15 Digestion process PH25619A (en)

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 (1)

Publication Number Publication Date
PH25619A true PH25619A (en) 1991-08-08

Family

ID=27048768

Family Applications (1)

Application Number Title Priority Date Filing Date
PH36222A PH25619A (en) 1983-04-20 1987-12-15 Digestion process

Country Status (4)

Country Link
AU (1) AU570034B2 (fr)
ES (1) ES8603606A1 (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
FR2544757B1 (fr) 1986-11-07
AU570034B2 (en) 1988-03-03
ES542278A0 (es) 1985-12-16
AU2540084A (en) 1984-10-25
FR2544757A1 (fr) 1984-10-26
ES8603606A1 (es) 1985-12-16

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