GB1069405A - Method in the manufacture of cellulose pulps from chips in grinding apparatus - Google Patents

Method in the manufacture of cellulose pulps from chips in grinding apparatus

Info

Publication number
GB1069405A
GB1069405A GB22064/64A GB2206464A GB1069405A GB 1069405 A GB1069405 A GB 1069405A GB 22064/64 A GB22064/64 A GB 22064/64A GB 2206464 A GB2206464 A GB 2206464A GB 1069405 A GB1069405 A GB 1069405A
Authority
GB
United Kingdom
Prior art keywords
chips
chemicals
pressure
grinding
temperature
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
GB22064/64A
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.)
Valmet AB
Original Assignee
Defibrator AB
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 Defibrator AB filed Critical Defibrator AB
Publication of GB1069405A publication Critical patent/GB1069405A/en
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
    • 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
    • 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
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining
    • D21D1/30—Disc mills

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)

Abstract

1,069,405. Grinding wood. DEFIBRATOR A.B. May 28, 1964 [May 31, 1963], No. 22064/64. Heading B2A. [Also in Division D2] Wood pulp for making paper is obtained in high yield (85-95%) by heating wood chips under steam pressure at above 100‹C. for a time short enough to minimize or avoid discoloration, and then defibred in two steps between grinding members. The first defibration step is carried out in a defibrator at high pressure and temperature, the second in a refiner at an intermediate pressure and temperature and the pulp obtained is cooled by a rapid reduction of pressure. Chemicals that have a bleaching effect at the time of defibration or facilitate a subsequent bleaching are supplied in a solution or suspension to the chips just before they pass between the grinding member of the first ur each step. As shown, chips are passed through a cellfeeder 10 into a preheater 12, to which steam is supplied through a pipe 14. The heated chips are carried by a screw conveyer 22 to a disc grinder 28, chemicals being added at 36. The defibred material passes through the conduit 38 to the valve 40, where pressure is released. It is then further refined at a lower temperature in the second disc refiner 42, further chemicals being added through the line 50. In a modification, not shown, the shaft 23 of the conveyer 22 is hollow, and the first addition of chemicals is made through this hollow shaft.
GB22064/64A 1963-05-31 1964-05-28 Method in the manufacture of cellulose pulps from chips in grinding apparatus Expired GB1069405A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE6080/63A SE303088B (en) 1963-05-31 1963-05-31

Publications (1)

Publication Number Publication Date
GB1069405A true GB1069405A (en) 1967-05-17

Family

ID=20267863

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22064/64A Expired GB1069405A (en) 1963-05-31 1964-05-28 Method in the manufacture of cellulose pulps from chips in grinding apparatus

Country Status (10)

Country Link
US (1) US3388037A (en)
AT (1) AT277746B (en)
BE (1) BE648604A (en)
CH (1) CH429421A (en)
DE (1) DE1517170A1 (en)
FI (1) FI43029C (en)
GB (1) GB1069405A (en)
NL (1) NL6406055A (en)
NO (1) NO120396B (en)
SE (1) SE303088B (en)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467574A (en) * 1966-06-14 1969-09-16 Crown Zellerbach Corp Refiner bleaching of high yield pulps
SE341322B (en) * 1968-04-02 1971-12-20 Defibrator Ab
US3627629A (en) * 1970-05-06 1971-12-14 Bauer Bros Co Refining system and process
SE359332B (en) * 1971-12-20 1973-08-27 Reinhall Rolf
US4030969A (en) * 1972-06-13 1977-06-21 Defibrator Ab Method of dispersing a bleaching agent into a stream of fibrous cellulosic pulp material in a throttling nozzle
US4037792A (en) * 1972-10-23 1977-07-26 Sca Development Aktiebolag Continuously refining raw fibrous material to produce mechanical refiner pulp
SE386694B (en) * 1973-09-06 1976-08-16 Sca Development Ab KIT FOR TREATMENT OF FIBER MATERIAL WHEN THE FIBER MATERIAL IS FIRST PREHEATED WITH ANGA IN A PRE-MAKER
CA1042159A (en) * 1974-12-09 1978-11-14 Domtar Inc. High yield pulping process
US4087317A (en) * 1975-08-04 1978-05-02 Eucatex S.A. Industria E Comercio High yield, low cost cellulosic pulp and hydrated gels therefrom
FI61215B (en) * 1976-11-23 1982-02-26 Defibrator Ab SAFETY RANGE OF CONTAINER FRAMSTAELLA LIGNOCELLULOSAHALTIGA FIBERMATERIAL
US4106979A (en) * 1977-03-21 1978-08-15 Consorzio Fabocart S.P.A. Preparation of paper pulps from dicotyledonous plants
FI54818C (en) * 1977-04-19 1979-03-12 Valmet Oy FOERFARANDE FOER FOERBAETTRING AV EN THERMOMECHANICAL MASS EGENSKAPER
US4229250A (en) * 1979-02-28 1980-10-21 Valmet Oy Method of improving properties of mechanical paper pulp without chemical reaction therewith
US4247362A (en) * 1979-05-21 1981-01-27 The Buckeye Cellulose Corporation High yield fiber sheets
US4349413A (en) * 1979-07-25 1982-09-14 The Black Clawson Company Cellulosic fiber insulation and process of preparation
US4699691A (en) * 1980-11-24 1987-10-13 W. R. Grace & Co. Thermomechanical digestion process
US4455195A (en) * 1982-01-05 1984-06-19 James River Corporation Fibrous filter media and process for producing same
US4455237A (en) * 1982-01-05 1984-06-19 James River Corporation High bulk pulp, filter media utilizing such pulp, related processes
SE8501246L (en) * 1985-03-13 1986-09-14 Eka Ab SET TO MANUFACTURE IN BLEACH, CHEMICAL MECHANICAL AND SEMI-CHEMICAL FIBER MASS USING ONE-STEP IMAGRATION
SE456430B (en) * 1985-11-06 1988-10-03 Sunds Defibrator SET FOR MAKING MECHANICAL MASS
DE3610940A1 (en) * 1986-03-04 1987-09-10 Escher Wyss Gmbh HIGH TEMPERATURE HIGH CONSISTENCY FAST WHITE
SE456826B (en) * 1986-04-18 1988-11-07 Svenska Traeforskningsinst SET TO REDUCE ENERGY CONSUMPTION BY REFINING CELLULOSALLY MATERIAL
US4848678A (en) * 1987-03-17 1989-07-18 Kikkoman Corporation Apparatus for crushing fruit and vegetables
GB2215350B (en) * 1988-03-16 1992-05-20 Thiokol Morton Inc Process for bleaching mechanical wood pulp
US5298118A (en) * 1988-07-12 1994-03-29 Atochem Preparation of bleached chemithermomechanical pulp
US5076892A (en) * 1989-07-20 1991-12-31 Sprout-Bauer Inc. Apparatus for pressurized refining of lignocellulose material
US5085735A (en) * 1989-09-05 1992-02-04 Kamyr Ab Method of refining cellulosic fibrous material with successive expansions before impacts, and expansions, to achieve increased fiber flexibility
US5607546A (en) * 1990-02-13 1997-03-04 Molnlycke Ab CTMP-process
SE466060C (en) 1990-02-13 1995-09-11 Moelnlycke Ab Absorbent chemitermomechanical mass and preparation thereof
FI935583A (en) * 1992-12-14 1994-06-15 Hoechst Celanese Corp Prevention of sulfur dioxide formation in pulverized bleaching
US5853534A (en) * 1992-12-30 1998-12-29 Sunds Defibrator Industries Ab Method of producing pulp with high yield using a two-stage refining system operating at different temperatures
SE470555B (en) * 1992-12-30 1994-08-22 Sunds Defibrator Ind Ab Process for the manufacture of mechanical and chemical mechanical pulp with a yield of more than 85% from lignocellulosic fibrous material
SE501894C2 (en) * 1993-10-13 1995-06-12 Kvaerner Pulping Tech Method and apparatus for mixing fluid in a pulp suspension
US6743332B2 (en) * 2001-05-16 2004-06-01 Weyerhaeuser Company High temperature peroxide bleaching of mechanical pulps
SE519462C2 (en) * 2001-06-21 2003-03-04 Holmen Ab Process for Preparation of Bleached Thermomechanical Pulp (TMP) or Bleached Chemithermomechanical Pulp (CTMP)
US7018509B2 (en) * 2002-08-31 2006-03-28 International Paper Co. Elimination of alum yellowing of aspen thermomechanical pulp through pulp washing
US7967948B2 (en) * 2006-06-02 2011-06-28 International Paper Company Process for non-chlorine oxidative bleaching of mechanical pulp in the presence of optical brightening agents
US20100224333A1 (en) * 2009-03-09 2010-09-09 Prasad Duggirala Method and chemical composition to improve efficiency of mechanical pulp
US9932709B2 (en) 2013-03-15 2018-04-03 Ecolab Usa Inc. Processes and compositions for brightness improvement in paper production
US9879361B2 (en) 2012-08-24 2018-01-30 Domtar Paper Company, Llc Surface enhanced pulp fibers, methods of making surface enhanced pulp fibers, products incorporating surface enhanced pulp fibers, and methods of making products incorporating surface enhanced pulp fibers
RU2656495C2 (en) 2014-02-21 2018-06-05 ДОМТАР ПЭЙПЕР КОМПАНИ ЭлЭлСи Cellulose fibers with increased surface
JP6461181B2 (en) 2014-02-21 2019-01-30 ドムター ペーパー カンパニー， エルエルシー Fiber-reinforced cement composite material and manufacturing method thereof
PL3135811T3 (en) * 2015-08-27 2018-03-30 VESTAECO SA Composites Sp. z o.o. Production method of pulp derived from biomass for producing composite boards
US11473245B2 (en) 2016-08-01 2022-10-18 Domtar Paper Company Llc Surface enhanced pulp fibers at a substrate surface
WO2018075627A1 (en) 2016-10-18 2018-04-26 Domtar Paper Company, Llc Method for production of filler loaded surface enhanced pulp fibers
CN106351049B (en) * 2016-11-19 2018-06-05 江门市鸿祥纸业有限公司 A kind of paper grade (stock) classification pulp crushing apparatus convenient for cleaning
US11441271B2 (en) 2018-02-05 2022-09-13 Domtar Paper Company Llc Paper products and pulps with surface enhanced pulp fibers and increased absorbency, and methods of making same
WO2020198516A1 (en) 2019-03-26 2020-10-01 Domtar Paper Company, Llc Paper products subjected to a surface treatment comprising enzyme-treated surface enhanced pulp fibers and methods of making the same
CN113249996B (en) * 2021-03-08 2022-08-02 山东诺建机械科技有限公司 Production process for preparing fiber by breaking wall of plant raw material

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1711706A (en) * 1924-11-03 1929-05-07 Bauer Bros Co Method of making wood pulp
US1870650A (en) * 1930-09-06 1932-08-09 Brown Co Chemical modification of cellulose fiber
US2454532A (en) * 1940-08-03 1948-11-23 Wood Conversion Co Process for defibering lignocellulose while subjected to steam and a digestive chemical
US2957795A (en) * 1956-06-07 1960-10-25 Bolton John W & Sons Inc Process for making paper pulp
US2960161A (en) * 1957-05-16 1960-11-15 John C F C Richter Device for discharging materials from vessels
US3023140A (en) * 1958-11-24 1962-02-27 Bauer Bros Co Pulp bleaching

Also Published As

Publication number Publication date
CH429421A (en) 1967-01-31
AT277746B (en) 1970-01-12
NL6406055A (en) 1964-12-01
DE1517170A1 (en) 1970-10-29
SE303088B (en) 1968-08-12
FI43029B (en) 1970-09-02
FI43029C (en) 1972-01-21
US3388037A (en) 1968-06-11
BE648604A (en) 1964-09-16
NO120396B (en) 1970-10-12

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