FI970961A - Menetelmä ja laite selluloosamassan valmistamiseksi jatkuvatoimisesti - Google Patents

Menetelmä ja laite selluloosamassan valmistamiseksi jatkuvatoimisesti Download PDF

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Publication number
FI970961A
FI970961A FI970961A FI970961A FI970961A FI 970961 A FI970961 A FI 970961A FI 970961 A FI970961 A FI 970961A FI 970961 A FI970961 A FI 970961A FI 970961 A FI970961 A FI 970961A
Authority
FI
Finland
Prior art keywords
zone
chips
liberated
liquor
fibers
Prior art date
Application number
FI970961A
Other languages
English (en)
Swedish (sv)
Other versions
FI970961A0 (fi
Inventor
Roger P Hoffman
Original Assignee
Hoffmann Environmental Systems
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 Hoffmann Environmental Systems filed Critical Hoffmann Environmental Systems
Publication of FI970961A0 publication Critical patent/FI970961A0/fi
Publication of FI970961A publication Critical patent/FI970961A/fi

Links

Classifications

    • 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
    • D21C3/266—Multistage processes the same pulping agent being used in all stages
    • 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/10—Physical methods for facilitating impregnation

Landscapes

  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
FI970961A 1994-09-21 1997-03-06 Menetelmä ja laite selluloosamassan valmistamiseksi jatkuvatoimisesti FI970961A (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/310,152 US5500084A (en) 1994-09-21 1994-09-21 Method and apparatus for pulping cellulosic material using a vessel with an impergnation zone and an attrition zone
PCT/US1995/011089 WO1996009432A1 (en) 1994-09-21 1995-08-31 Method and apparatus for the continuous production of cellulosic pulp

Publications (2)

Publication Number Publication Date
FI970961A0 FI970961A0 (fi) 1997-03-06
FI970961A true FI970961A (fi) 1997-03-13

Family

ID=23201219

Family Applications (1)

Application Number Title Priority Date Filing Date
FI970961A FI970961A (fi) 1994-09-21 1997-03-06 Menetelmä ja laite selluloosamassan valmistamiseksi jatkuvatoimisesti

Country Status (14)

Country Link
US (1) US5500084A (fi)
EP (1) EP0782642B1 (fi)
JP (1) JPH10506441A (fi)
AT (1) ATE199952T1 (fi)
AU (1) AU692922B2 (fi)
BR (1) BR9508970A (fi)
CA (1) CA2208264A1 (fi)
DE (1) DE69520440T2 (fi)
ES (1) ES2158952T3 (fi)
FI (1) FI970961A (fi)
NZ (1) NZ292449A (fi)
PH (1) PH31483A (fi)
RU (1) RU2140475C1 (fi)
WO (1) WO1996009432A1 (fi)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003033360A2 (en) * 2001-10-17 2003-04-24 Fluor Corporation Improved vessel closures and methods therfor
WO2004106624A1 (en) * 2003-06-03 2004-12-09 Pacific Pulp Resources Inc. Method for producing pulp and lignin
US20090020244A1 (en) * 2007-07-16 2009-01-22 Andritz Inc. Impregnation vessel with convergence side relief and method for heat injection at convergence
JP4604136B1 (ja) * 2009-06-16 2010-12-22 株式会社 東亜興業 パルプ製造装置、パルプ製造方法及び高濃度パルパー
RU2490384C1 (ru) * 2012-03-23 2013-08-20 Федеральное Государственное Бюджетное Учреждение Науки Институт Химии И Химической Технологии Сибирского Отделения Российской Академии Наук (Иххт Со Ран) Способ получения целлюлозы
RU2513387C2 (ru) * 2012-05-05 2014-04-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный лесотехнический университет имени С.М. Кирова" Способ получения целлюлозного полуфабриката
US9512560B2 (en) * 2014-10-31 2016-12-06 Quantum Technologies, Inc. Short oxygen delignification method
CN112476697A (zh) * 2020-11-09 2021-03-12 常德宜居建筑材料有限公司 一种用于中纤板的一体化成型装置及其制作方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA553647A (en) * 1958-03-04 I. Aronovsky Samuel Cellulosic pulp and method of manufacturing the same
US2433490A (en) * 1946-09-09 1947-12-30 Stapley Stephen George Pulping machine
US2847304A (en) * 1952-04-10 1958-08-12 Hammermill Paper Co Semi-chemical pulp process
FR1078667A (fr) * 1953-04-08 1954-11-22 Perfectionnements à la fabrication en continu des pâtes à papier
SE330323B (fi) * 1968-01-19 1970-11-09 Kamyr Ab
US3723243A (en) * 1971-10-18 1973-03-27 Improved Machinery Inc Continuous digester having selfregulating wood chip level
DE3212767A1 (de) * 1982-04-06 1983-10-06 Nicolaus Md Verwaltungsges Verfahren und reaktor zum kontinuierlichen aufschliessen von pflanzenfasermaterial
US5034095A (en) * 1989-06-01 1991-07-23 Oji Paper Co., Ltd. Apparatus and process for the delignification of cellulose pulp

Also Published As

Publication number Publication date
DE69520440D1 (de) 2001-04-26
BR9508970A (pt) 1997-11-11
FI970961A0 (fi) 1997-03-06
EP0782642B1 (en) 2001-03-21
AU3462995A (en) 1996-04-09
WO1996009432A1 (en) 1996-03-28
AU692922B2 (en) 1998-06-18
CA2208264A1 (en) 1996-03-28
DE69520440T2 (de) 2001-10-18
US5500084A (en) 1996-03-19
ES2158952T3 (es) 2001-09-16
JPH10506441A (ja) 1998-06-23
EP0782642A4 (en) 1998-09-09
NZ292449A (en) 1998-02-26
EP0782642A1 (en) 1997-07-09
RU2140475C1 (ru) 1999-10-27
ATE199952T1 (de) 2001-04-15
PH31483A (en) 1998-11-03

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