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 apparatusInfo
- 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
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 100C. 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.
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)
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)
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 |
-
1963
- 1963-05-31 SE SE6080/63A patent/SE303088B/xx unknown
-
1964
- 1964-05-27 NO NO153420A patent/NO120396B/no unknown
- 1964-05-28 GB GB22064/64A patent/GB1069405A/en not_active Expired
- 1964-05-28 US US370959A patent/US3388037A/en not_active Expired - Lifetime
- 1964-05-29 DE DE19641517170 patent/DE1517170A1/en active Pending
- 1964-05-29 NL NL6406055A patent/NL6406055A/xx unknown
- 1964-05-29 BE BE648604D patent/BE648604A/xx unknown
- 1964-05-29 CH CH701864A patent/CH429421A/en unknown
- 1964-05-29 FI FI641183A patent/FI43029C/en active
- 1964-06-01 AT AT471664A patent/AT277746B/en not_active IP Right Cessation
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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