FI972327A0 - Menetelmä raskasmetalli-ionien minimoimiseksi - Google Patents

Menetelmä raskasmetalli-ionien minimoimiseksi

Info

Publication number
FI972327A0
FI972327A0 FI972327A FI972327A FI972327A0 FI 972327 A0 FI972327 A0 FI 972327A0 FI 972327 A FI972327 A FI 972327A FI 972327 A FI972327 A FI 972327A FI 972327 A0 FI972327 A0 FI 972327A0
Authority
FI
Finland
Prior art keywords
metal ions
heavy metal
minimizing heavy
minimizing
ions
Prior art date
Application number
FI972327A
Other languages
English (en)
Swedish (sv)
Other versions
FI972327A (fi
Inventor
Jian Er Jiang
Kaj Henricson
Original Assignee
Ahlstrom Machinery Inc
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 Ahlstrom Machinery Inc filed Critical Ahlstrom Machinery Inc
Publication of FI972327A0 publication Critical patent/FI972327A0/fi
Publication of FI972327A publication Critical patent/FI972327A/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
FI972327A 1996-06-05 1997-06-02 Menetelmä raskasmetalli-ionien minimoimiseksi FI972327A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/659,682 US6475338B1 (en) 1996-06-05 1996-06-05 Method of minimizing transition metal ions during chemical pulping in a digester by adding chelating agent to the digester

Publications (2)

Publication Number Publication Date
FI972327A0 true FI972327A0 (fi) 1997-06-02
FI972327A FI972327A (fi) 1997-12-06

Family

ID=24646364

Family Applications (1)

Application Number Title Priority Date Filing Date
FI972327A FI972327A (fi) 1996-06-05 1997-06-02 Menetelmä raskasmetalli-ionien minimoimiseksi

Country Status (5)

Country Link
US (1) US6475338B1 (fi)
JP (1) JPH1072788A (fi)
CA (1) CA2205679A1 (fi)
FI (1) FI972327A (fi)
SE (1) SE9702152L (fi)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE518692C2 (sv) * 2001-03-20 2002-11-05 Metso Paper Inc Blekning av massa med klordioxid
US7306698B2 (en) * 2001-03-20 2007-12-11 Biopulping International Method for producing pulp
DK1392914T3 (da) * 2001-06-06 2011-03-28 Dequest Ag Fremgangsmåde og vandig sammensætning til fremstilling af forbedret pulp
SE520956C2 (sv) * 2001-12-05 2003-09-16 Kvaerner Pulping Tech Kontinuerlig kokning med extra uppehållstid för avdragen vätska utanför kokaren
US20070240837A1 (en) * 2006-04-13 2007-10-18 Andritz Inc. Hardwood alkaline pulping processes and systems
JP6038001B2 (ja) 2013-10-30 2016-12-07 ユニ・チャーム株式会社 使用済み衛生用品からリサイクルパルプを製造する方法
US20210199287A1 (en) 2019-12-26 2021-07-01 Anellotech, Inc. Process and apparatus for removing impurities from solid biomass feeds
CN111636101B (zh) * 2020-04-24 2022-01-14 赛得利(九江)纤维有限公司 一种去除废旧棉织物溶解浆中金属离子的方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE343092B (fi) * 1970-06-22 1972-02-28 Mo Och Domsjoe Ab
US4946556A (en) * 1989-04-25 1990-08-07 Kamyr, Inc. Method of oxygen delignifying wood pulp with between stage washing
US5489363A (en) 1993-05-04 1996-02-06 Kamyr, Inc. Pulping with low dissolved solids for improved pulp strength
SE502667C2 (sv) 1993-07-12 1995-12-04 Kvaerner Pulping Tech Behandling av fibermaterial med komplexbildare före kokning
FI122655B (fi) 1998-11-06 2012-05-15 Ovivo Luxembourg Sarl Eräprosessi massan valmistamiseksi

Also Published As

Publication number Publication date
CA2205679A1 (en) 1997-12-05
US6475338B1 (en) 2002-11-05
FI972327A (fi) 1997-12-06
SE9702152L (sv) 1997-12-06
JPH1072788A (ja) 1998-03-17
SE9702152D0 (sv) 1997-06-05

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