FI20010008L - Menetelmä kemiallisen massan valmistamiseksi - Google Patents

Menetelmä kemiallisen massan valmistamiseksi Download PDF

Info

Publication number: FI20010008L
Authority: FI; Finland
Prior art keywords: chemical pulp; preparing chemical; preparing; pulp; chemical
Prior art date: 2000-01-07

Application number

FI20010008A

Other languages

English (en)

Swedish (sv)

Other versions

FI20010008A0 (fi

FI20010008A7 (fi

Inventor

Jian Er Jiang

Kaj Henricson

Original Assignee

Andritz Ahlstrom 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.)

2000-01-07

Filing date

2001-01-03

Publication date

2001-07-08

2000-01-07 Priority claimed from US09/479,051 external-priority patent/US20020139497A1/en

2001-01-03 Application filed by Andritz Ahlstrom Inc filed Critical Andritz Ahlstrom Inc

2001-01-03 Publication of FI20010008A0 publication Critical patent/FI20010008A0/fi

2001-07-08 Publication of FI20010008L publication Critical patent/FI20010008L/fi

2001-07-08 Publication of FI20010008A7 publication Critical patent/FI20010008A7/fi

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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
- 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
- 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
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes

Landscapes

Chemical & Material Sciences (AREA)
Inorganic Chemistry (AREA)
Paper (AREA)

FI20010008A 2000-01-07 2001-01-03 Menetelmä kemiallisen massan valmistamiseksi FI20010008A7 (fi)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US09/479,051 US20020139497A1 (en)	1996-06-05	2000-01-07	Metal extraction prior to chelation in chemical pulp production

Publications (3)

Publication Number	Publication Date
FI20010008A0 FI20010008A0 (fi)	2001-01-03
FI20010008L true FI20010008L (fi)	2001-07-08
FI20010008A7 FI20010008A7 (fi)	2001-07-08

Family

ID=23902464

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI20010008A FI20010008A7 (fi)	2000-01-07	2001-01-03	Menetelmä kemiallisen massan valmistamiseksi

Country Status (4)

Country	Link
JP (1)	JP2001295189A (fi)
CA (1)	CA2330409A1 (fi)
FI (1)	FI20010008A7 (fi)
SE (1)	SE0100039L (fi)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP5114629B2 (ja) *	2008-02-06	2013-01-09	サンノプコ株式会社	リグノセルロース物質蒸解用蒸解助剤及びパルプの製造方法

2001
- 2001-01-03 FI FI20010008A patent/FI20010008A7/fi unknown
- 2001-01-04 SE SE0100039A patent/SE0100039L/xx not_active Application Discontinuation
- 2001-01-05 CA CA002330409A patent/CA2330409A1/en not_active Abandoned
- 2001-01-05 JP JP2001000631A patent/JP2001295189A/ja not_active Withdrawn

Also Published As

Publication number	Publication date
FI20010008A0 (fi)	2001-01-03
SE0100039D0 (sv)	2001-01-04
FI20010008A7 (fi)	2001-07-08
SE0100039L (sv)	2001-07-08
JP2001295189A (ja)	2001-10-26
CA2330409A1 (en)	2001-07-07

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