EG16660A - Thermomechanical digestion process using bleachants - Google Patents

Thermomechanical digestion process using bleachants

Info

Publication number
EG16660A
EG16660A EG250/84A EG25084A EG16660A EG 16660 A EG16660 A EG 16660A EG 250/84 A EG250/84 A EG 250/84A EG 25084 A EG25084 A EG 25084A EG 16660 A EG16660 A EG 16660A
Authority
EG
Egypt
Prior art keywords
bleachants
digestion process
thermomechanical digestion
thermomechanical
digestion
Prior art date
Application number
EG250/84A
Original Assignee
Process Evaluation Devel
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 Devel filed Critical Process Evaluation Devel
Application granted granted Critical
Publication of EG16660A publication Critical patent/EG16660A/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
    • D21B1/30—Defibrating by other means
    • D21B1/36—Explosive disintegration by sudden pressure reduction
    • 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
    • D21B1/14—Disintegrating in mills
    • D21B1/16—Disintegrating in mills in the presence of chemical agents
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
EG250/84A 1983-05-23 1984-04-18 Thermomechanical digestion process using bleachants EG16660A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US49689283A 1983-05-23 1983-05-23

Publications (1)

Publication Number Publication Date
EG16660A true EG16660A (en) 1991-12-30

Family

ID=23974632

Family Applications (1)

Application Number Title Priority Date Filing Date
EG250/84A EG16660A (en) 1983-05-23 1984-04-18 Thermomechanical digestion process using bleachants

Country Status (9)

Country Link
JP (1) JPS59216994A (en)
AU (1) AU570673B2 (en)
BR (1) BR8305924A (en)
EG (1) EG16660A (en)
ES (1) ES531729A0 (en)
FR (1) FR2546545B1 (en)
IN (1) IN160270B (en)
PH (1) PH22203A (en)
ZA (1) ZA837927B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3610940A1 (en) * 1986-03-04 1987-09-10 Escher Wyss Gmbh HIGH TEMPERATURE HIGH CONSISTENCY FAST WHITE
FR2701274B1 (en) * 1993-02-09 1995-03-31 Air Liquide Process for the manufacture of bleached chemical thermal mechanical pulp (CTMP).
JP2005290331A (en) 2004-04-06 2005-10-20 Shinto Fine Co Ltd Antiallergenic composition and method for deactivating allergen

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB818828A (en) * 1956-07-10 1959-08-26 Scott Paper Co Process for bleaching cellulosic pulp
FI42161C (en) * 1963-04-03 1970-05-11 Defibrator Ab A method for the continuous production of mechanical and semi-chemical pulps from a lignocellulosic material
FR1401560A (en) * 1964-05-29 1965-06-04 Defibrator Ab Process for manufacturing cellulose pulp from chips in a shredder device
US3467574A (en) * 1966-06-14 1969-09-16 Crown Zellerbach Corp Refiner bleaching of high yield pulps
FI61215B (en) * 1976-11-23 1982-02-26 Defibrator Ab SAFETY RANGE OF CONTAINER FRAMSTAELLA LIGNOCELLULOSAHALTIGA FIBERMATERIAL
SE420329C (en) * 1978-02-16 1984-07-10 Mo Och Domsjoe Ab PROCEDURE FOR THE PREPARATION OF GRINDING PAPER
SE422818B (en) * 1978-03-31 1982-03-29 Modo Chemetrics Ab PROCEDURE FOR PROCESSING ALLULOSAMASSA BY BLACKING OR EXTRACTING
US4363697A (en) * 1979-12-03 1982-12-14 The Black Clawson Company Method for medium consistency oxygen delignification of pulp
US4347101A (en) * 1980-11-24 1982-08-31 W. R. Grace & Co. Process for producing newsprint
US4431480A (en) * 1981-10-27 1984-02-14 The Black Clawson Company Method and apparatus for controlled addition of alkaline chemicals to an oxygen delignification reaction

Also Published As

Publication number Publication date
FR2546545B1 (en) 1986-10-24
AU570673B2 (en) 1988-03-24
ZA837927B (en) 1985-01-30
IN160270B (en) 1987-07-04
ES8503757A1 (en) 1985-03-01
BR8305924A (en) 1985-02-20
ES531729A0 (en) 1985-03-01
JPS59216994A (en) 1984-12-07
FR2546545A1 (en) 1984-11-30
AU2540184A (en) 1984-11-29
PH22203A (en) 1988-06-28

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