FI972327A - Menetelmä raskasmetalli-ionien minimoimiseksi - Google Patents
Menetelmä raskasmetalli-ionien minimoimiseksi Download PDFInfo
- Publication number
- FI972327A FI972327A FI972327A FI972327A FI972327A FI 972327 A FI972327 A FI 972327A FI 972327 A FI972327 A FI 972327A FI 972327 A FI972327 A FI 972327A FI 972327 A FI972327 A FI 972327A
- Authority
- FI
- Finland
- Prior art keywords
- metal ions
- heavy metal
- chemical pulping
- minimizing heavy
- minimizing
- Prior art date
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
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 FI972327A0 (fi) | 1997-06-02 |
FI972327A true 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)
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 |
PL366768A1 (en) * | 2001-06-06 | 2005-02-07 | Solutia Inc. | Method for the production of improved 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 |
BR112022012668A2 (pt) | 2019-12-26 | 2022-09-06 | Anellotech Inc | Processo e aparelho para remover impurezas de alimentações de biomassa sólida |
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)
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 |
-
1996
- 1996-06-05 US US08/659,682 patent/US6475338B1/en not_active Expired - Lifetime
-
1997
- 1997-05-20 CA CA002205679A patent/CA2205679A1/en not_active Withdrawn
- 1997-06-02 FI FI972327A patent/FI972327A/fi unknown
- 1997-06-03 JP JP9145189A patent/JPH1072788A/ja not_active Withdrawn
- 1997-06-05 SE SE9702152A patent/SE9702152L/ unknown
Also Published As
Publication number | Publication date |
---|---|
SE9702152D0 (sv) | 1997-06-05 |
SE9702152L (sv) | 1997-12-06 |
CA2205679A1 (en) | 1997-12-05 |
JPH1072788A (ja) | 1998-03-17 |
US6475338B1 (en) | 2002-11-05 |
FI972327A0 (fi) | 1997-06-02 |
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