FI881282A0 - Menetelmä delignifioitujen selluloosa-aineiden poistamiseksi keittimistä - Google Patents

Menetelmä delignifioitujen selluloosa-aineiden poistamiseksi keittimistä

Info

Publication number
FI881282A0
FI881282A0 FI881282A FI881282A FI881282A0 FI 881282 A0 FI881282 A0 FI 881282A0 FI 881282 A FI881282 A FI 881282A FI 881282 A FI881282 A FI 881282A FI 881282 A0 FI881282 A0 FI 881282A0
Authority
FI
Finland
Prior art keywords
digester
cellulose materials
delignified cellulose
delignified
materials
Prior art date
Application number
FI881282A
Other languages
English (en)
Swedish (sv)
Other versions
FI881282A (fi
FI96781B (fi
FI96781C (fi
Inventor
J Martin Macleod
Martin E Cyr
Original Assignee
Pulp Paper Res Inst
Irving Pulp & Paper Ltd
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 Pulp Paper Res Inst, Irving Pulp & Paper Ltd filed Critical Pulp Paper Res Inst
Publication of FI881282A0 publication Critical patent/FI881282A0/fi
Publication of FI881282A publication Critical patent/FI881282A/fi
Publication of FI96781B publication Critical patent/FI96781B/fi
Application granted granted Critical
Publication of FI96781C publication Critical patent/FI96781C/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
    • D21C7/00—Digesters
    • D21C7/08—Discharge devices
FI881282A 1987-03-18 1988-03-17 Menetelmä delignifioitujen selluloosa-aineiden poistamiseksi keittimistä FI96781C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2902887 1987-03-18
US07/029,028 US4814042A (en) 1987-03-18 1987-03-18 Method for discharging delignified cellulosic materials from digesters

Publications (4)

Publication Number Publication Date
FI881282A0 true FI881282A0 (fi) 1988-03-17
FI881282A FI881282A (fi) 1988-09-19
FI96781B FI96781B (fi) 1996-05-15
FI96781C FI96781C (fi) 1996-08-26

Family

ID=21846840

Family Applications (1)

Application Number Title Priority Date Filing Date
FI881282A FI96781C (fi) 1987-03-18 1988-03-17 Menetelmä delignifioitujen selluloosa-aineiden poistamiseksi keittimistä

Country Status (5)

Country Link
US (1) US4814042A (fi)
JP (1) JPS63256785A (fi)
CA (1) CA1301516C (fi)
FI (1) FI96781C (fi)
SE (2) SE467360B (fi)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5788812A (en) * 1985-11-05 1998-08-04 Agar; Richard C. Method of recovering furfural from organic pulping liquor
SE8903417L (sv) * 1989-10-17 1991-04-18 Sunds Defibrator Ind Ab Saett foer toemning av kokare
CA2158522C (en) * 1994-09-19 2001-04-10 Daniel R. Roll Mixer for mixing multi-phase fluids
FI105700B (fi) * 1995-11-01 2000-09-29 Ahlstrom Machinery Oy Menetelmä ja laitteisto eräkeittoprosessin parantamiseksi
FI113187B (fi) 1999-05-28 2007-09-25 Metso Paper Pori Oy Menetelmä massan käsittelemiseksi
FI110327B (fi) 1999-10-04 2002-12-31 Metso Chemical Pulping Oy Menetelmä sellumassan valmistamiseksi
FI121384B (fi) * 1999-12-29 2010-10-29 Metso Paper Inc Parannettu menetelmä sellumassan valmistamiseksi tärpätin talteenotolla
US20060157209A1 (en) * 2005-01-19 2006-07-20 Bianchini Craig A Method and apparatus to distribute the inflow of liquors in a Batch Digester

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1560881A (en) * 1924-04-14 1925-11-10 Phillip C Ulmen Quick-cook sulphite process
US1818913A (en) * 1928-04-12 1931-08-11 Chemipulp Process Inc Method and apparatus for the chemical treatment of pulp
JPS57167475A (en) * 1981-04-02 1982-10-15 Mitsubishi Paper Mills Ltd Production of bleached pulp from unbleached used paper

Also Published As

Publication number Publication date
FI881282A (fi) 1988-09-19
US4814042A (en) 1989-03-21
SE8800951D0 (sv) 1988-03-16
FI96781B (fi) 1996-05-15
CA1301516C (en) 1992-05-26
JPS63256785A (ja) 1988-10-24
SE8800951L (sv) 1988-09-19
SE467360B (sv) 1992-07-06
FI96781C (fi) 1996-08-26

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Legal Events

Date Code Title Description
BB Publication of examined application
FG Patent granted

Owner name: PULP AND PAPER RESEARCH INSTITUTE OF CANADA

Owner name: IRVING PULP & PAPER, LIMITED

MA Patent expired